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authorBenjamin Peterson <benjamin@python.org>2009-03-04 00:14:51 +0000
committerBenjamin Peterson <benjamin@python.org>2009-03-04 00:14:51 +0000
commita796e13a1060ef5145015a3dca1142a6cf0f53c6 (patch)
tree43535ced864dd05b06e28b8e70f425c28531c868 /Lib/test
parent4275e231a62b9107e84ce56f845aed4c3df98826 (diff)
downloadcpython-a796e13a1060ef5145015a3dca1142a6cf0f53c6.tar.gz
merge the io-c branch: C implementation of the io module
The main io module now uses the C implementation. The Python one still exists in Lib/_pyio.py for ease of testing new features and usefulness to other implementers. The rewrite was done by Antoine Pitrou and Amaury Forgeot d'Arc. I was slightly helpful at the end. :) Following are the log messages from the io-c branch: Merged revisions 68683-68685,68687-68689,68693,68704,68741-68743,68745,68747,68752-68754,68756,68758,68812,68816-68817,68820-68822,68824-68825,68828,68876-68877,69037,69044,69104,69115,69194,69626-69629,69636,69638,69641-69642,69644-69654,69656-69661,69671,69677,69812-69815,69817,69827-69830,69839,69841-69845,69848,69850,69852,69854,69860,69865-69866,69868,69872-69873,69885,69888,69891-69893,69911,69913-69916,69963,70033,70035,70038,70041-70048,70067-70070,70075,70112,70133,70135,70140 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/io-c ........ r68683 | antoine.pitrou | 2009-01-17 17:13:48 -0600 (Sat, 17 Jan 2009) | 3 lines Merge in changes from the io-c sandbox. Tests will follow in separate commits. ........ r68684 | antoine.pitrou | 2009-01-17 17:17:26 -0600 (Sat, 17 Jan 2009) | 3 lines Fixes and additions to test_io.py ........ r68685 | antoine.pitrou | 2009-01-17 17:22:04 -0600 (Sat, 17 Jan 2009) | 1 line Fix test_fileio ........ r68687 | antoine.pitrou | 2009-01-17 17:35:11 -0600 (Sat, 17 Jan 2009) | 3 lines Add dependency to _iomodule.h for the various C sources ........ r68688 | antoine.pitrou | 2009-01-17 17:38:18 -0600 (Sat, 17 Jan 2009) | 3 lines These precautions are not needed anymore! ........ r68689 | antoine.pitrou | 2009-01-17 17:41:48 -0600 (Sat, 17 Jan 2009) | 3 lines Fix another test ........ r68693 | antoine.pitrou | 2009-01-17 17:49:58 -0600 (Sat, 17 Jan 2009) | 3 lines Fix test_uu (which was using private attributes of TextIOWrapper) ........ r68704 | antoine.pitrou | 2009-01-17 18:45:29 -0600 (Sat, 17 Jan 2009) | 3 lines Most io sources are Py_ssize_t-clean (I don't know about bytesio and stringio) ........ r68741 | antoine.pitrou | 2009-01-18 15:20:30 -0600 (Sun, 18 Jan 2009) | 3 lines Check return type in TextIOWrapper.__next__ ........ r68742 | antoine.pitrou | 2009-01-18 15:28:48 -0600 (Sun, 18 Jan 2009) | 4 lines Make binary buffered readline and iteration much faster (8x as fast as the IOBase generic implementation) ........ r68743 | antoine.pitrou | 2009-01-18 15:47:47 -0600 (Sun, 18 Jan 2009) | 3 lines Reinsert test_io_after_close (was removed by mistake) ........ r68745 | antoine.pitrou | 2009-01-18 16:16:06 -0600 (Sun, 18 Jan 2009) | 3 lines Add read, read1 and write methods to BufferedIOBase ........ r68747 | antoine.pitrou | 2009-01-18 16:35:58 -0600 (Sun, 18 Jan 2009) | 3 lines Kill test failure ........ r68752 | amaury.forgeotdarc | 2009-01-18 17:05:43 -0600 (Sun, 18 Jan 2009) | 3 lines Fix a segfault when e.g a BufferedReader is created with a FileIO in read mode. ........ r68753 | antoine.pitrou | 2009-01-18 17:13:09 -0600 (Sun, 18 Jan 2009) | 3 lines Add truncate() to text IO objects ........ r68754 | antoine.pitrou | 2009-01-18 17:51:08 -0600 (Sun, 18 Jan 2009) | 3 lines Remove IOBase.__del__ and replace it with custom code with tp_dealloc ........ r68756 | antoine.pitrou | 2009-01-18 18:10:16 -0600 (Sun, 18 Jan 2009) | 3 lines Remove irrelevant comment. ........ r68758 | antoine.pitrou | 2009-01-18 18:36:16 -0600 (Sun, 18 Jan 2009) | 3 lines in importlib:_fileio._FileIO -> _io.FileIO ........ r68812 | antoine.pitrou | 2009-01-20 14:15:51 -0600 (Tue, 20 Jan 2009) | 3 lines Add garbage collection support to FileIO objects ........ r68816 | antoine.pitrou | 2009-01-20 14:56:28 -0600 (Tue, 20 Jan 2009) | 3 lines Add GC support to Buffered and Text IO objects ........ r68817 | antoine.pitrou | 2009-01-20 15:19:45 -0600 (Tue, 20 Jan 2009) | 3 lines Add some file headers ........ r68820 | antoine.pitrou | 2009-01-20 15:29:59 -0600 (Tue, 20 Jan 2009) | 3 lines Add class TextIOBase ........ r68821 | antoine.pitrou | 2009-01-20 15:36:16 -0600 (Tue, 20 Jan 2009) | 3 lines Add properties to TextIOBase ........ r68822 | antoine.pitrou | 2009-01-20 15:41:19 -0600 (Tue, 20 Jan 2009) | 3 lines Disable the pure Python TextIOBase class, and inject C the implementation instead ........ r68824 | antoine.pitrou | 2009-01-20 16:36:28 -0600 (Tue, 20 Jan 2009) | 3 lines Fix two leaks ........ r68825 | antoine.pitrou | 2009-01-20 16:38:29 -0600 (Tue, 20 Jan 2009) | 3 lines FileIO.name is just a plain attribute, we can set it directly ........ r68828 | antoine.pitrou | 2009-01-20 17:06:33 -0600 (Tue, 20 Jan 2009) | 3 lines Speed up closed checks on text IO objects. Good for a 25% speedup on small ops. ........ r68876 | antoine.pitrou | 2009-01-23 17:01:25 -0600 (Fri, 23 Jan 2009) | 3 lines Two typos ........ r68877 | antoine.pitrou | 2009-01-23 18:13:20 -0600 (Fri, 23 Jan 2009) | 3 lines Remove two unused functions ........ r69037 | amaury.forgeotdarc | 2009-01-27 17:10:25 -0600 (Tue, 27 Jan 2009) | 2 lines Update the win32 project files ........ r69044 | antoine.pitrou | 2009-01-27 18:51:07 -0600 (Tue, 27 Jan 2009) | 3 lines Improve heuristic in IncrementalNewlineDecoder + some micro-optimizations ........ r69104 | antoine.pitrou | 2009-01-29 15:23:42 -0600 (Thu, 29 Jan 2009) | 3 lines Fix some crashers found by Victor ........ r69115 | hirokazu.yamamoto | 2009-01-29 20:36:28 -0600 (Thu, 29 Jan 2009) | 1 line Updated VC6 project file. ........ r69194 | antoine.pitrou | 2009-02-01 16:57:18 -0600 (Sun, 01 Feb 2009) | 3 lines Fix downcasting warnings in 32-bit mode with 64-bit offsets (Windows) ........ r69626 | benjamin.peterson | 2009-02-14 17:33:34 -0600 (Sat, 14 Feb 2009) | 1 line only catch AttributeError and UnsupportedOperation ........ r69627 | benjamin.peterson | 2009-02-14 21:35:28 -0600 (Sat, 14 Feb 2009) | 1 line give the IO module its own state and store the os and locale modules in it ........ r69628 | benjamin.peterson | 2009-02-14 22:08:32 -0600 (Sat, 14 Feb 2009) | 1 line put interned strings in the module state structure ........ r69629 | benjamin.peterson | 2009-02-14 22:15:29 -0600 (Sat, 14 Feb 2009) | 1 line put UnsupportedOperation in the module state ........ r69636 | benjamin.peterson | 2009-02-15 08:31:42 -0600 (Sun, 15 Feb 2009) | 1 line dealloc unsupported_operation ........ r69638 | benjamin.peterson | 2009-02-15 09:24:45 -0600 (Sun, 15 Feb 2009) | 1 line actually test the C implementation ........ r69641 | benjamin.peterson | 2009-02-15 10:12:37 -0600 (Sun, 15 Feb 2009) | 5 lines make interned strings globals again ;( putting them in the module state was asking for trouble when the module was dealloced before the classes in it were ........ r69642 | benjamin.peterson | 2009-02-15 10:19:45 -0600 (Sun, 15 Feb 2009) | 1 line actually test the python implementations ........ r69644 | antoine.pitrou | 2009-02-15 11:59:30 -0600 (Sun, 15 Feb 2009) | 3 lines Fix memory leak in destructor when a Python class inherits from IOBase (or an IOBase-derived type) ........ r69645 | antoine.pitrou | 2009-02-15 12:23:26 -0600 (Sun, 15 Feb 2009) | 3 lines Add a warning about the embarassing state of IOBase finalization ........ r69646 | antoine.pitrou | 2009-02-15 13:14:42 -0600 (Sun, 15 Feb 2009) | 3 lines Fix opening of 8-bit filenames with FileIO ........ r69647 | antoine.pitrou | 2009-02-15 13:20:22 -0600 (Sun, 15 Feb 2009) | 3 lines Fix leak in FileIO constructor ........ r69648 | antoine.pitrou | 2009-02-15 13:58:16 -0600 (Sun, 15 Feb 2009) | 3 lines Fix some refleaks ........ r69649 | antoine.pitrou | 2009-02-15 14:05:13 -0600 (Sun, 15 Feb 2009) | 3 lines Fix a leak in IOBase.writelines ........ r69650 | antoine.pitrou | 2009-02-15 14:11:56 -0600 (Sun, 15 Feb 2009) | 3 lines Fix memory leak in BufferedWriter.truncate ........ r69651 | antoine.pitrou | 2009-02-15 14:25:34 -0600 (Sun, 15 Feb 2009) | 3 lines Fix a leak in TextIOWrapper.seek ........ r69652 | antoine.pitrou | 2009-02-15 14:26:28 -0600 (Sun, 15 Feb 2009) | 3 lines Unify implementations of truncate for buffered objects ........ r69653 | antoine.pitrou | 2009-02-15 15:15:15 -0600 (Sun, 15 Feb 2009) | 3 lines Fix more leaks in TextIOWrapper ........ r69654 | antoine.pitrou | 2009-02-15 15:21:57 -0600 (Sun, 15 Feb 2009) | 3 lines Smaller chunk size for a faster test ........ r69656 | benjamin.peterson | 2009-02-15 17:29:48 -0600 (Sun, 15 Feb 2009) | 1 line braces make this much clearer ........ r69657 | benjamin.peterson | 2009-02-15 17:46:07 -0600 (Sun, 15 Feb 2009) | 1 line use the correct macro ........ r69658 | antoine.pitrou | 2009-02-15 19:38:59 -0600 (Sun, 15 Feb 2009) | 5 lines Fix crash in test_urllib2_localnet in debug mode. It was due to an HTTPResponse object being revived when calling its close() method in IOBase's tp_dealloc. _PyIOBase_finalize() starts looking scary... ........ r69659 | benjamin.peterson | 2009-02-15 20:55:48 -0600 (Sun, 15 Feb 2009) | 1 line fix segfault on initialization failing ........ r69660 | benjamin.peterson | 2009-02-15 21:09:31 -0600 (Sun, 15 Feb 2009) | 1 line apparently locale.getprefferedencoding() can raise a ImportError, too ........ r69661 | benjamin.peterson | 2009-02-15 21:54:15 -0600 (Sun, 15 Feb 2009) | 1 line it's amazing this worked at all; I was using the wrong structs! ........ r69671 | benjamin.peterson | 2009-02-16 08:38:27 -0600 (Mon, 16 Feb 2009) | 1 line add garbage collection support to bytesio ........ r69677 | benjamin.peterson | 2009-02-16 10:31:03 -0600 (Mon, 16 Feb 2009) | 5 lines reduce ImportError catching code duplication I'm not sure this makes the code clearer with its new gotos, but at least I added a big fat comment ........ r69812 | antoine.pitrou | 2009-02-20 13:50:16 -0600 (Fri, 20 Feb 2009) | 3 lines _StringIO now belongs to the _io modules, rather to its own _stringio module ........ r69813 | antoine.pitrou | 2009-02-20 13:58:22 -0600 (Fri, 20 Feb 2009) | 3 lines Add a test for StringIO properties ........ r69814 | antoine.pitrou | 2009-02-20 14:06:03 -0600 (Fri, 20 Feb 2009) | 3 lines Reimplement a few trivial StringIO functions and properties in C ........ r69815 | antoine.pitrou | 2009-02-20 14:13:11 -0600 (Fri, 20 Feb 2009) | 3 lines Add the line_buffering property to TextIOWrapper, and test for it ........ r69817 | antoine.pitrou | 2009-02-20 14:45:50 -0600 (Fri, 20 Feb 2009) | 4 lines Allow IncrementalNewlineDecoder to take unicode objects as decoding input if the decoder parameter is None This will help rewriting StringIO to C ........ r69827 | antoine.pitrou | 2009-02-20 19:00:30 -0600 (Fri, 20 Feb 2009) | 3 lines Rewrite most of StringIO in C. Some almost empty stubs remain to be converted. ........ r69828 | antoine.pitrou | 2009-02-20 19:09:25 -0600 (Fri, 20 Feb 2009) | 3 lines Plug a leak, and remove an unused string ........ r69829 | benjamin.peterson | 2009-02-20 20:02:28 -0600 (Fri, 20 Feb 2009) | 1 line this assertions makes more sense here ........ r69830 | benjamin.peterson | 2009-02-20 20:03:04 -0600 (Fri, 20 Feb 2009) | 1 line PyModule_AddObject can fail; simplify this code with a macro ........ r69839 | antoine.pitrou | 2009-02-21 12:54:01 -0600 (Sat, 21 Feb 2009) | 3 lines StringIO is now written entirely in C (and blazingly fast) ........ r69841 | benjamin.peterson | 2009-02-21 14:05:40 -0600 (Sat, 21 Feb 2009) | 1 line split the Python implementation of io into another module and rewrite the tests to test both implementations ........ r69842 | benjamin.peterson | 2009-02-21 14:10:00 -0600 (Sat, 21 Feb 2009) | 1 line closed is not a function ........ r69843 | benjamin.peterson | 2009-02-21 14:13:04 -0600 (Sat, 21 Feb 2009) | 1 line fix __all__ test ........ r69844 | benjamin.peterson | 2009-02-21 14:21:24 -0600 (Sat, 21 Feb 2009) | 1 line fix the rest of the Misc tests ........ r69845 | benjamin.peterson | 2009-02-21 14:26:59 -0600 (Sat, 21 Feb 2009) | 1 line RawIOBase is better for FileIO ........ r69848 | benjamin.peterson | 2009-02-21 15:33:53 -0600 (Sat, 21 Feb 2009) | 1 line fix some more tests broken by bag argument validation ........ r69850 | benjamin.peterson | 2009-02-21 16:16:42 -0600 (Sat, 21 Feb 2009) | 1 line make the python IncrementalNewineDecoder support a None decoder ........ r69852 | benjamin.peterson | 2009-02-21 16:36:09 -0600 (Sat, 21 Feb 2009) | 1 line fix a BlockingIOError.characters_written bug ........ r69854 | benjamin.peterson | 2009-02-21 16:49:02 -0600 (Sat, 21 Feb 2009) | 1 line check whence ........ r69860 | benjamin.peterson | 2009-02-21 17:42:50 -0600 (Sat, 21 Feb 2009) | 1 line fix some of these Misbehaving io tests ........ r69865 | benjamin.peterson | 2009-02-21 18:59:52 -0600 (Sat, 21 Feb 2009) | 1 line don't use super here() ........ r69866 | benjamin.peterson | 2009-02-21 19:05:28 -0600 (Sat, 21 Feb 2009) | 1 line use implementation specific classes ........ r69868 | benjamin.peterson | 2009-02-21 22:12:05 -0600 (Sat, 21 Feb 2009) | 1 line use a more DRY friendly approach to injecting module contents into test classes ........ r69872 | antoine.pitrou | 2009-02-22 13:39:45 -0600 (Sun, 22 Feb 2009) | 3 lines Sanitize destructor behaviour of IOBase. Now Python-defined attributes can be accessed from close(). ........ r69873 | antoine.pitrou | 2009-02-22 13:50:14 -0600 (Sun, 22 Feb 2009) | 4 lines Only set the internal fd after it has been checked to be valid (otherwise, the destructor will attempt to close it) ........ r69885 | benjamin.peterson | 2009-02-22 15:30:14 -0600 (Sun, 22 Feb 2009) | 1 line convert some other tests to use both io implementations ........ r69888 | antoine.pitrou | 2009-02-22 17:03:16 -0600 (Sun, 22 Feb 2009) | 3 lines Silence all exceptions when finalizing ........ r69891 | benjamin.peterson | 2009-02-22 17:27:24 -0600 (Sun, 22 Feb 2009) | 1 line convert another test to test both io implementations ........ r69892 | benjamin.peterson | 2009-02-22 17:32:15 -0600 (Sun, 22 Feb 2009) | 1 line help poor people like me to find their io tests (did I miss any?) ........ r69893 | benjamin.peterson | 2009-02-22 17:37:56 -0600 (Sun, 22 Feb 2009) | 1 line put a big note in the test telling people to write tests for both implementations now ........ r69911 | antoine.pitrou | 2009-02-23 13:57:18 -0600 (Mon, 23 Feb 2009) | 3 lines expose DEFAULT_BUFFER_SIZE again (fixes a bunch of test failures) ........ r69913 | antoine.pitrou | 2009-02-23 14:10:30 -0600 (Mon, 23 Feb 2009) | 4 lines Do the cyclic garbage collection tests only on the C version. The Python version is helpless as it uses __del__. ........ r69914 | antoine.pitrou | 2009-02-23 14:21:41 -0600 (Mon, 23 Feb 2009) | 3 lines Adapt test_largefile to test both implementations ........ r69915 | antoine.pitrou | 2009-02-23 14:25:14 -0600 (Mon, 23 Feb 2009) | 3 lines One small failure ........ r69916 | antoine.pitrou | 2009-02-23 14:28:33 -0600 (Mon, 23 Feb 2009) | 3 lines Add a comment, at BP's request ........ r69963 | antoine.pitrou | 2009-02-25 09:42:59 -0600 (Wed, 25 Feb 2009) | 3 lines Add a test of ABC inheritance ........ r70033 | antoine.pitrou | 2009-02-27 15:49:50 -0600 (Fri, 27 Feb 2009) | 3 lines The base classes now are ABCs. ........ r70035 | benjamin.peterson | 2009-02-27 15:57:41 -0600 (Fri, 27 Feb 2009) | 1 line good house keeping ........ r70038 | antoine.pitrou | 2009-02-27 17:05:23 -0600 (Fri, 27 Feb 2009) | 4 lines Make the buffer allocation overflow tests specific to the C implementation, since the Python implementation resizes its buffers when needed rather than allocating them up front. ........ r70041 | benjamin.peterson | 2009-02-27 18:26:12 -0600 (Fri, 27 Feb 2009) | 1 line kill java naming for sanity ........ r70042 | benjamin.peterson | 2009-02-27 18:28:53 -0600 (Fri, 27 Feb 2009) | 2 lines timingTest is superseded by iobench ........ r70043 | antoine.pitrou | 2009-02-27 19:13:50 -0600 (Fri, 27 Feb 2009) | 3 lines Remove the last traces of java naming in test_io ........ r70044 | antoine.pitrou | 2009-02-27 19:18:34 -0600 (Fri, 27 Feb 2009) | 3 lines Better resource cleanup ........ r70045 | antoine.pitrou | 2009-02-27 19:29:00 -0600 (Fri, 27 Feb 2009) | 3 lines Remove dubious uses of super(), and fix one test ........ r70046 | antoine.pitrou | 2009-02-27 19:31:00 -0600 (Fri, 27 Feb 2009) | 3 lines Bump up CHUNK_SIZE (no need to make the Python version look slower than it is) ........ r70047 | benjamin.peterson | 2009-02-27 20:03:26 -0600 (Fri, 27 Feb 2009) | 1 line fix typo ........ r70048 | benjamin.peterson | 2009-02-27 21:35:11 -0600 (Fri, 27 Feb 2009) | 1 line move code to a better place ........ r70067 | benjamin.peterson | 2009-02-28 10:43:20 -0600 (Sat, 28 Feb 2009) | 4 lines 1. make sure to undo buffered read aheads in BufferedRandom.seek() 2. refill the buffer if have <= 0 3. fix the last failing test_io test! ........ r70068 | benjamin.peterson | 2009-02-28 10:57:50 -0600 (Sat, 28 Feb 2009) | 1 line define read1() on the python implementation's BufferedIOBase ........ r70069 | benjamin.peterson | 2009-02-28 11:01:17 -0600 (Sat, 28 Feb 2009) | 1 line document read1() in BufferedIOBase ........ r70070 | benjamin.peterson | 2009-02-28 11:06:42 -0600 (Sat, 28 Feb 2009) | 1 line give credit where credit is due ........ r70075 | antoine.pitrou | 2009-02-28 13:34:59 -0600 (Sat, 28 Feb 2009) | 3 lines Amaury's name ........ r70112 | antoine.pitrou | 2009-03-02 17:11:55 -0600 (Mon, 02 Mar 2009) | 4 lines Looks like this is necessary in order to build cleanly under Windows (someone correct this if it's wrong, I'm no Windows user) ........ r70133 | benjamin.peterson | 2009-03-03 15:23:32 -0600 (Tue, 03 Mar 2009) | 1 line fix test_newline_property on _pyio.StringIO ........ r70135 | benjamin.peterson | 2009-03-03 15:47:30 -0600 (Tue, 03 Mar 2009) | 1 line fix typos and inconsistencies. thanks to Daniel Diniz ........ r70140 | benjamin.peterson | 2009-03-03 16:21:10 -0600 (Tue, 03 Mar 2009) | 1 line add the test from #5266 ........
Diffstat (limited to 'Lib/test')
-rw-r--r--Lib/test/test_bufio.py21
-rw-r--r--Lib/test/test_descr.py4
-rw-r--r--Lib/test/test_file.py47
-rw-r--r--Lib/test/test_fileio.py54
-rw-r--r--Lib/test/test_io.py1518
-rw-r--r--Lib/test/test_largefile.py35
-rw-r--r--Lib/test/test_memoryio.py189
-rw-r--r--Lib/test/test_univnewlines.py36
-rw-r--r--Lib/test/test_uu.py2
9 files changed, 1404 insertions, 502 deletions
diff --git a/Lib/test/test_bufio.py b/Lib/test/test_bufio.py
index e65951d77c..7d617d3414 100644
--- a/Lib/test/test_bufio.py
+++ b/Lib/test/test_bufio.py
@@ -1,9 +1,12 @@
import unittest
from test import support
-# Simple test to ensure that optimizations in fileobject.c deliver
-# the expected results. For best testing, run this under a debug-build
-# Python too (to exercise asserts in the C code).
+import io # C implementation.
+import _pyio as pyio # Python implementation.
+
+# Simple test to ensure that optimizations in the IO library deliver the
+# expected results. For best testing, run this under a debug-build Python too
+# (to exercise asserts in the C code).
lengths = list(range(1, 257)) + [512, 1000, 1024, 2048, 4096, 8192, 10000,
16384, 32768, 65536, 1000000]
@@ -18,7 +21,7 @@ class BufferSizeTest(unittest.TestCase):
# Since C doesn't guarantee we can write/read arbitrary bytes in text
# files, use binary mode.
- f = open(support.TESTFN, "wb")
+ f = self.open(support.TESTFN, "wb")
try:
# write once with \n and once without
f.write(s)
@@ -58,8 +61,16 @@ class BufferSizeTest(unittest.TestCase):
def test_nullpat(self):
self.drive_one(bytes(1000))
+
+class CBufferSizeTest(BufferSizeTest):
+ open = io.open
+
+class PyBufferSizeTest(BufferSizeTest):
+ open = staticmethod(pyio.open)
+
+
def test_main():
- support.run_unittest(BufferSizeTest)
+ support.run_unittest(CBufferSizeTest, PyBufferSizeTest)
if __name__ == "__main__":
test_main()
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 8d43d7ae36..0554fc2fc8 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -2605,10 +2605,10 @@ order (MRO) for bases """
def test_descrdoc(self):
# Testing descriptor doc strings...
- from _fileio import _FileIO
+ from _io import FileIO
def check(descr, what):
self.assertEqual(descr.__doc__, what)
- check(_FileIO.closed, "True if the file is closed") # getset descriptor
+ check(FileIO.closed, "True if the file is closed") # getset descriptor
check(complex.real, "the real part of a complex number") # member descriptor
def test_doc_descriptor(self):
diff --git a/Lib/test/test_file.py b/Lib/test/test_file.py
index 7a68b2f720..3360121f35 100644
--- a/Lib/test/test_file.py
+++ b/Lib/test/test_file.py
@@ -4,6 +4,9 @@ import unittest
from array import array
from weakref import proxy
+import io
+import _pyio as pyio
+
from test.support import TESTFN, findfile, run_unittest
from collections import UserList
@@ -11,7 +14,7 @@ class AutoFileTests(unittest.TestCase):
# file tests for which a test file is automatically set up
def setUp(self):
- self.f = open(TESTFN, 'wb')
+ self.f = self.open(TESTFN, 'wb')
def tearDown(self):
if self.f:
@@ -39,7 +42,7 @@ class AutoFileTests(unittest.TestCase):
self.f.write(b'12')
self.f.close()
a = array('b', b'x'*10)
- self.f = open(TESTFN, 'rb')
+ self.f = self.open(TESTFN, 'rb')
n = self.f.readinto(a)
self.assertEquals(b'12', a.tostring()[:n])
@@ -47,7 +50,7 @@ class AutoFileTests(unittest.TestCase):
# verify readinto refuses text files
a = array('b', b'x'*10)
self.f.close()
- self.f = open(TESTFN, 'r')
+ self.f = self.open(TESTFN, 'r')
if hasattr(self.f, "readinto"):
self.assertRaises(TypeError, self.f.readinto, a)
@@ -56,7 +59,7 @@ class AutoFileTests(unittest.TestCase):
l = UserList([b'1', b'2'])
self.f.writelines(l)
self.f.close()
- self.f = open(TESTFN, 'rb')
+ self.f = self.open(TESTFN, 'rb')
buf = self.f.read()
self.assertEquals(buf, b'12')
@@ -126,13 +129,20 @@ class AutoFileTests(unittest.TestCase):
def testReadWhenWriting(self):
self.assertRaises(IOError, self.f.read)
+class CAutoFileTests(AutoFileTests):
+ open = io.open
+
+class PyAutoFileTests(AutoFileTests):
+ open = staticmethod(pyio.open)
+
+
class OtherFileTests(unittest.TestCase):
def testModeStrings(self):
# check invalid mode strings
for mode in ("", "aU", "wU+"):
try:
- f = open(TESTFN, mode)
+ f = self.open(TESTFN, mode)
except ValueError:
pass
else:
@@ -153,7 +163,7 @@ class OtherFileTests(unittest.TestCase):
# verify that we get a sensible error message for bad mode argument
bad_mode = "qwerty"
try:
- f = open(TESTFN, bad_mode)
+ f = self.open(TESTFN, bad_mode)
except ValueError as msg:
if msg.args[0] != 0:
s = str(msg)
@@ -170,11 +180,11 @@ class OtherFileTests(unittest.TestCase):
# misbehaviour especially with repeated close() calls
for s in (-1, 0, 1, 512):
try:
- f = open(TESTFN, 'wb', s)
+ f = self.open(TESTFN, 'wb', s)
f.write(str(s).encode("ascii"))
f.close()
f.close()
- f = open(TESTFN, 'rb', s)
+ f = self.open(TESTFN, 'rb', s)
d = int(f.read().decode("ascii"))
f.close()
f.close()
@@ -187,13 +197,13 @@ class OtherFileTests(unittest.TestCase):
# "file.truncate fault on windows"
os.unlink(TESTFN)
- f = open(TESTFN, 'wb')
+ f = self.open(TESTFN, 'wb')
try:
f.write(b'12345678901') # 11 bytes
f.close()
- f = open(TESTFN,'rb+')
+ f = self.open(TESTFN,'rb+')
data = f.read(5)
if data != b'12345':
self.fail("Read on file opened for update failed %r" % data)
@@ -233,13 +243,13 @@ class OtherFileTests(unittest.TestCase):
try:
# Prepare the testfile
- bag = open(TESTFN, "wb")
+ bag = self.open(TESTFN, "wb")
bag.write(filler * nchunks)
bag.writelines(testlines)
bag.close()
# Test for appropriate errors mixing read* and iteration
for methodname, args in methods:
- f = open(TESTFN, 'rb')
+ f = self.open(TESTFN, 'rb')
if next(f) != filler:
self.fail, "Broken testfile"
meth = getattr(f, methodname)
@@ -253,7 +263,7 @@ class OtherFileTests(unittest.TestCase):
# ("h", "a", "m", "\n"), so 4096 lines of that should get us
# exactly on the buffer boundary for any power-of-2 buffersize
# between 4 and 16384 (inclusive).
- f = open(TESTFN, 'rb')
+ f = self.open(TESTFN, 'rb')
for i in range(nchunks):
next(f)
testline = testlines.pop(0)
@@ -295,7 +305,7 @@ class OtherFileTests(unittest.TestCase):
self.fail("readlines() after next() with empty buffer "
"failed. Got %r, expected %r" % (line, testline))
# Reading after iteration hit EOF shouldn't hurt either
- f = open(TESTFN, 'rb')
+ f = self.open(TESTFN, 'rb')
try:
for line in f:
pass
@@ -311,12 +321,19 @@ class OtherFileTests(unittest.TestCase):
finally:
os.unlink(TESTFN)
+class COtherFileTests(OtherFileTests):
+ open = io.open
+
+class PyOtherFileTests(OtherFileTests):
+ open = staticmethod(pyio.open)
+
def test_main():
# Historically, these tests have been sloppy about removing TESTFN.
# So get rid of it no matter what.
try:
- run_unittest(AutoFileTests, OtherFileTests)
+ run_unittest(CAutoFileTests, PyAutoFileTests,
+ COtherFileTests, PyOtherFileTests)
finally:
if os.path.exists(TESTFN):
os.unlink(TESTFN)
diff --git a/Lib/test/test_fileio.py b/Lib/test/test_fileio.py
index 497914f583..615361eeea 100644
--- a/Lib/test/test_fileio.py
+++ b/Lib/test/test_fileio.py
@@ -10,13 +10,13 @@ from test.support import (TESTFN, findfile, check_warnings, run_unittest,
make_bad_fd)
from collections import UserList
-import _fileio
+from _io import FileIO as _FileIO
class AutoFileTests(unittest.TestCase):
# file tests for which a test file is automatically set up
def setUp(self):
- self.f = _fileio._FileIO(TESTFN, 'w')
+ self.f = _FileIO(TESTFN, 'w')
def tearDown(self):
if self.f:
@@ -63,13 +63,13 @@ class AutoFileTests(unittest.TestCase):
self.f.write(bytes([1, 2]))
self.f.close()
a = array('b', b'x'*10)
- self.f = _fileio._FileIO(TESTFN, 'r')
+ self.f = _FileIO(TESTFN, 'r')
n = self.f.readinto(a)
self.assertEquals(array('b', [1, 2]), a[:n])
def testRepr(self):
self.assertEquals(repr(self.f),
- "_fileio._FileIO(%d, %s)" % (self.f.fileno(),
+ "io.FileIO(%d, %s)" % (self.f.fileno(),
repr(self.f.mode)))
def testErrors(self):
@@ -80,7 +80,7 @@ class AutoFileTests(unittest.TestCase):
self.assertRaises(ValueError, f.read, 10) # Open for reading
f.close()
self.assert_(f.closed)
- f = _fileio._FileIO(TESTFN, 'r')
+ f = _FileIO(TESTFN, 'r')
self.assertRaises(TypeError, f.readinto, "")
self.assert_(not f.closed)
f.close()
@@ -106,7 +106,7 @@ class AutoFileTests(unittest.TestCase):
# Windows always returns "[Errno 13]: Permission denied
# Unix calls dircheck() and returns "[Errno 21]: Is a directory"
try:
- _fileio._FileIO('.', 'r')
+ _FileIO('.', 'r')
except IOError as e:
self.assertNotEqual(e.errno, 0)
self.assertEqual(e.filename, ".")
@@ -118,19 +118,19 @@ class OtherFileTests(unittest.TestCase):
def testAbles(self):
try:
- f = _fileio._FileIO(TESTFN, "w")
+ f = _FileIO(TESTFN, "w")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
f.close()
- f = _fileio._FileIO(TESTFN, "r")
+ f = _FileIO(TESTFN, "r")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), False)
self.assertEquals(f.seekable(), True)
f.close()
- f = _fileio._FileIO(TESTFN, "a+")
+ f = _FileIO(TESTFN, "a+")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
@@ -139,14 +139,14 @@ class OtherFileTests(unittest.TestCase):
if sys.platform != "win32":
try:
- f = _fileio._FileIO("/dev/tty", "a")
+ f = _FileIO("/dev/tty", "a")
except EnvironmentError:
# When run in a cron job there just aren't any
# ttys, so skip the test. This also handles other
# OS'es that don't support /dev/tty.
pass
else:
- f = _fileio._FileIO("/dev/tty", "a")
+ f = _FileIO("/dev/tty", "a")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
if sys.platform != "darwin" and \
@@ -163,7 +163,7 @@ class OtherFileTests(unittest.TestCase):
# check invalid mode strings
for mode in ("", "aU", "wU+", "rw", "rt"):
try:
- f = _fileio._FileIO(TESTFN, mode)
+ f = _FileIO(TESTFN, mode)
except ValueError:
pass
else:
@@ -172,10 +172,26 @@ class OtherFileTests(unittest.TestCase):
def testUnicodeOpen(self):
# verify repr works for unicode too
- f = _fileio._FileIO(str(TESTFN), "w")
+ f = _FileIO(str(TESTFN), "w")
f.close()
os.unlink(TESTFN)
+ def testBytesOpen(self):
+ # Opening a bytes filename
+ try:
+ fn = TESTFN.encode("ascii")
+ except UnicodeEncodeError:
+ # Skip test
+ return
+ f = _FileIO(fn, "w")
+ try:
+ f.write(b"abc")
+ f.close()
+ with open(TESTFN, "rb") as f:
+ self.assertEquals(f.read(), b"abc")
+ finally:
+ os.unlink(TESTFN)
+
def testInvalidFd(self):
self.assertRaises(ValueError, _fileio._FileIO, -10)
self.assertRaises(OSError, _fileio._FileIO, make_bad_fd())
@@ -184,7 +200,7 @@ class OtherFileTests(unittest.TestCase):
# verify that we get a sensible error message for bad mode argument
bad_mode = "qwerty"
try:
- f = _fileio._FileIO(TESTFN, bad_mode)
+ f = _FileIO(TESTFN, bad_mode)
except ValueError as msg:
if msg.args[0] != 0:
s = str(msg)
@@ -200,11 +216,11 @@ class OtherFileTests(unittest.TestCase):
def bug801631():
# SF bug <http://www.python.org/sf/801631>
# "file.truncate fault on windows"
- f = _fileio._FileIO(TESTFN, 'w')
+ f = _FileIO(TESTFN, 'w')
f.write(bytes(range(11)))
f.close()
- f = _fileio._FileIO(TESTFN,'r+')
+ f = _FileIO(TESTFN,'r+')
data = f.read(5)
if data != bytes(range(5)):
self.fail("Read on file opened for update failed %r" % data)
@@ -244,14 +260,14 @@ class OtherFileTests(unittest.TestCase):
pass
def testInvalidInit(self):
- self.assertRaises(TypeError, _fileio._FileIO, "1", 0, 0)
+ self.assertRaises(TypeError, _FileIO, "1", 0, 0)
def testWarnings(self):
with check_warnings() as w:
self.assertEqual(w.warnings, [])
- self.assertRaises(TypeError, _fileio._FileIO, [])
+ self.assertRaises(TypeError, _FileIO, [])
self.assertEqual(w.warnings, [])
- self.assertRaises(ValueError, _fileio._FileIO, "/some/invalid/name", "rt")
+ self.assertRaises(ValueError, _FileIO, "/some/invalid/name", "rt")
self.assertEqual(w.warnings, [])
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index 30869aca34..58f33a2933 100644
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -1,4 +1,23 @@
-"""Unit tests for io.py."""
+"""Unit tests for the io module."""
+
+# Tests of io are scattered over the test suite:
+# * test_bufio - tests file buffering
+# * test_memoryio - tests BytesIO and StringIO
+# * test_fileio - tests FileIO
+# * test_file - tests the file interface
+# * test_io - tests everything else in the io module
+# * test_univnewlines - tests universal newline support
+# * test_largefile - tests operations on a file greater than 2**32 bytes
+# (only enabled with -ulargefile)
+
+################################################################################
+# ATTENTION TEST WRITERS!!!
+################################################################################
+# When writing tests for io, it's important to test both the C and Python
+# implementations. This is usually done by writing a base test that refers to
+# the type it is testing as a attribute. Then it provides custom subclasses to
+# test both implementations. This file has lots of examples.
+################################################################################
import os
import sys
@@ -7,27 +26,40 @@ import array
import threading
import random
import unittest
-from itertools import chain, cycle
+import weakref
+import gc
+import abc
+from itertools import chain, cycle, count
+from collections import deque
from test import support
import codecs
-import io # The module under test
+import io # C implementation of io
+import _pyio as pyio # Python implementation of io
-class MockRawIO(io.RawIOBase):
+def _default_chunk_size():
+ """Get the default TextIOWrapper chunk size"""
+ with open(__file__, "r", encoding="latin1") as f:
+ return f._CHUNK_SIZE
+
+
+class MockRawIO:
def __init__(self, read_stack=()):
self._read_stack = list(read_stack)
self._write_stack = []
+ self._reads = 0
def read(self, n=None):
+ self._reads += 1
try:
return self._read_stack.pop(0)
except:
return b""
def write(self, b):
- self._write_stack.append(b[:])
+ self._write_stack.append(bytes(b))
return len(b)
def writable(self):
@@ -43,41 +75,148 @@ class MockRawIO(io.RawIOBase):
return True
def seek(self, pos, whence):
- pass
+ return 0 # wrong but we gotta return something
def tell(self):
- return 42
+ return 0 # same comment as above
+
+ def readinto(self, buf):
+ self._reads += 1
+ max_len = len(buf)
+ try:
+ data = self._read_stack[0]
+ except IndexError:
+ return 0
+ if data is None:
+ del self._read_stack[0]
+ return None
+ n = len(data)
+ if len(data) <= max_len:
+ del self._read_stack[0]
+ buf[:n] = data
+ return n
+ else:
+ buf[:] = data[:max_len]
+ self._read_stack[0] = data[max_len:]
+ return max_len
+
+ def truncate(self, pos=None):
+ return pos
+
+class CMockRawIO(MockRawIO, io.RawIOBase):
+ pass
+
+class PyMockRawIO(MockRawIO, pyio.RawIOBase):
+ pass
+
+
+class MisbehavedRawIO(MockRawIO):
+ def write(self, b):
+ return super().write(b) * 2
+
+ def read(self, n=None):
+ return super().read(n) * 2
+
+ def seek(self, pos, whence):
+ return -123
+
+ def tell(self):
+ return -456
+
+ def readinto(self, buf):
+ super().readinto(buf)
+ return len(buf) * 5
+
+class CMisbehavedRawIO(MisbehavedRawIO, io.RawIOBase):
+ pass
+
+class PyMisbehavedRawIO(MisbehavedRawIO, pyio.RawIOBase):
+ pass
+
+
+class CloseFailureIO(MockRawIO):
+ closed = 0
+
+ def close(self):
+ if not self.closed:
+ self.closed = 1
+ raise IOError
+
+class CCloseFailureIO(CloseFailureIO, io.RawIOBase):
+ pass
+class PyCloseFailureIO(CloseFailureIO, pyio.RawIOBase):
+ pass
-class MockFileIO(io.BytesIO):
+
+class MockFileIO:
def __init__(self, data):
self.read_history = []
- io.BytesIO.__init__(self, data)
+ super().__init__(data)
def read(self, n=None):
- res = io.BytesIO.read(self, n)
+ res = super().read(n)
self.read_history.append(None if res is None else len(res))
return res
+ def readinto(self, b):
+ res = super().readinto(b)
+ self.read_history.append(res)
+ return res
+
+class CMockFileIO(MockFileIO, io.BytesIO):
+ pass
+
+class PyMockFileIO(MockFileIO, pyio.BytesIO):
+ pass
-class MockNonBlockWriterIO(io.RawIOBase):
- def __init__(self, blocking_script):
- self._blocking_script = list(blocking_script)
+class MockNonBlockWriterIO:
+
+ def __init__(self):
self._write_stack = []
+ self._blocker_char = None
- def write(self, b):
- self._write_stack.append(b[:])
- n = self._blocking_script.pop(0)
- if (n < 0):
- raise io.BlockingIOError(0, "test blocking", -n)
- else:
- return n
+ def pop_written(self):
+ s = b"".join(self._write_stack)
+ self._write_stack[:] = []
+ return s
+
+ def block_on(self, char):
+ """Block when a given char is encountered."""
+ self._blocker_char = char
+
+ def readable(self):
+ return True
+
+ def seekable(self):
+ return True
def writable(self):
return True
+ def write(self, b):
+ b = bytes(b)
+ n = -1
+ if self._blocker_char:
+ try:
+ n = b.index(self._blocker_char)
+ except ValueError:
+ pass
+ else:
+ self._blocker_char = None
+ self._write_stack.append(b[:n])
+ raise self.BlockingIOError(0, "test blocking", n)
+ self._write_stack.append(b)
+ return len(b)
+
+class CMockNonBlockWriterIO(MockNonBlockWriterIO, io.RawIOBase):
+ BlockingIOError = io.BlockingIOError
+
+class PyMockNonBlockWriterIO(MockNonBlockWriterIO, pyio.RawIOBase):
+ BlockingIOError = pyio.BlockingIOError
+
class IOTest(unittest.TestCase):
@@ -151,13 +290,13 @@ class IOTest(unittest.TestCase):
self.assertEqual(f.read(2), b"x")
def test_raw_file_io(self):
- f = io.open(support.TESTFN, "wb", buffering=0)
+ f = self.open(support.TESTFN, "wb", buffering=0)
self.assertEqual(f.readable(), False)
self.assertEqual(f.writable(), True)
self.assertEqual(f.seekable(), True)
self.write_ops(f)
f.close()
- f = io.open(support.TESTFN, "rb", buffering=0)
+ f = self.open(support.TESTFN, "rb", buffering=0)
self.assertEqual(f.readable(), True)
self.assertEqual(f.writable(), False)
self.assertEqual(f.seekable(), True)
@@ -165,13 +304,13 @@ class IOTest(unittest.TestCase):
f.close()
def test_buffered_file_io(self):
- f = io.open(support.TESTFN, "wb")
+ f = self.open(support.TESTFN, "wb")
self.assertEqual(f.readable(), False)
self.assertEqual(f.writable(), True)
self.assertEqual(f.seekable(), True)
self.write_ops(f)
f.close()
- f = io.open(support.TESTFN, "rb")
+ f = self.open(support.TESTFN, "rb")
self.assertEqual(f.readable(), True)
self.assertEqual(f.writable(), False)
self.assertEqual(f.seekable(), True)
@@ -180,22 +319,23 @@ class IOTest(unittest.TestCase):
def test_readline(self):
f = io.open(support.TESTFN, "wb")
- f.write(b"abc\ndef\nxyzzy\nfoo")
+ f.write(b"abc\ndef\nxyzzy\nfoo\x00bar\nanother line")
f.close()
- f = io.open(support.TESTFN, "rb")
+ f = self.open(support.TESTFN, "rb")
self.assertEqual(f.readline(), b"abc\n")
self.assertEqual(f.readline(10), b"def\n")
self.assertEqual(f.readline(2), b"xy")
self.assertEqual(f.readline(4), b"zzy\n")
- self.assertEqual(f.readline(), b"foo")
+ self.assertEqual(f.readline(), b"foo\x00bar\n")
+ self.assertEqual(f.readline(), b"another line")
f.close()
def test_raw_bytes_io(self):
- f = io.BytesIO()
+ f = self.BytesIO()
self.write_ops(f)
data = f.getvalue()
self.assertEqual(data, b"hello world\n")
- f = io.BytesIO(data)
+ f = self.BytesIO(data)
self.read_ops(f, True)
def test_large_file_ops(self):
@@ -211,12 +351,10 @@ class IOTest(unittest.TestCase):
print("Use 'regrtest.py -u largefile test_io' to run it.",
file=sys.stderr)
return
- f = io.open(support.TESTFN, "w+b", 0)
- self.large_file_ops(f)
- f.close()
- f = io.open(support.TESTFN, "w+b")
- self.large_file_ops(f)
- f.close()
+ with self.open(support.TESTFN, "w+b", 0) as f:
+ self.large_file_ops(f)
+ with self.open(support.TESTFN, "w+b") as f:
+ self.large_file_ops(f)
def test_with_open(self):
for bufsize in (0, 1, 100):
@@ -235,59 +373,107 @@ class IOTest(unittest.TestCase):
# issue 5008
def test_append_mode_tell(self):
- with io.open(support.TESTFN, "wb") as f:
+ with self.open(support.TESTFN, "wb") as f:
f.write(b"xxx")
- with io.open(support.TESTFN, "ab", buffering=0) as f:
+ with self.open(support.TESTFN, "ab", buffering=0) as f:
self.assertEqual(f.tell(), 3)
- with io.open(support.TESTFN, "ab") as f:
+ with self.open(support.TESTFN, "ab") as f:
self.assertEqual(f.tell(), 3)
- with io.open(support.TESTFN, "a") as f:
+ with self.open(support.TESTFN, "a") as f:
self.assert_(f.tell() > 0)
def test_destructor(self):
record = []
- class MyFileIO(io.FileIO):
+ class MyFileIO(self.FileIO):
def __del__(self):
record.append(1)
- io.FileIO.__del__(self)
+ try:
+ f = super().__del__
+ except AttributeError:
+ pass
+ else:
+ f()
def close(self):
record.append(2)
- io.FileIO.close(self)
+ super().close()
def flush(self):
record.append(3)
- io.FileIO.flush(self)
- f = MyFileIO(support.TESTFN, "w")
- f.write("xxx")
+ super().flush()
+ f = MyFileIO(support.TESTFN, "wb")
+ f.write(b"xxx")
+ del f
+ self.assertEqual(record, [1, 2, 3])
+ f = open(support.TESTFN, "rb")
+ self.assertEqual(f.read(), b"xxx")
+
+ def _check_base_destructor(self, base):
+ record = []
+ class MyIO(base):
+ def __init__(self):
+ # This exercises the availability of attributes on object
+ # destruction.
+ # (in the C version, close() is called by the tp_dealloc
+ # function, not by __del__)
+ self.on_del = 1
+ self.on_close = 2
+ self.on_flush = 3
+ def __del__(self):
+ record.append(self.on_del)
+ try:
+ f = super().__del__
+ except AttributeError:
+ pass
+ else:
+ f()
+ def close(self):
+ record.append(self.on_close)
+ super().close()
+ def flush(self):
+ record.append(self.on_flush)
+ super().flush()
+ f = MyIO()
del f
self.assertEqual(record, [1, 2, 3])
+ def test_IOBase_destructor(self):
+ self._check_base_destructor(self.IOBase)
+
+ def test_RawIOBase_destructor(self):
+ self._check_base_destructor(self.RawIOBase)
+
+ def test_BufferedIOBase_destructor(self):
+ self._check_base_destructor(self.BufferedIOBase)
+
+ def test_TextIOBase_destructor(self):
+ self._check_base_destructor(self.TextIOBase)
+
def test_close_flushes(self):
- f = io.open(support.TESTFN, "wb")
+ f = self.open(support.TESTFN, "wb")
f.write(b"xxx")
f.close()
- f = io.open(support.TESTFN, "rb")
+ f = self.open(support.TESTFN, "rb")
self.assertEqual(f.read(), b"xxx")
f.close()
def test_array_writes(self):
a = array.array('i', range(10))
n = len(a.tostring())
- f = io.open(support.TESTFN, "wb", 0)
+ f = self.open(support.TESTFN, "wb", 0)
self.assertEqual(f.write(a), n)
f.close()
- f = io.open(support.TESTFN, "wb")
+ f = self.open(support.TESTFN, "wb")
self.assertEqual(f.write(a), n)
f.close()
def test_closefd(self):
- self.assertRaises(ValueError, io.open, support.TESTFN, 'w',
+ self.assertRaises(ValueError, self.open, support.TESTFN, 'w',
closefd=False)
- def testReadClosed(self):
- with io.open(support.TESTFN, "w") as f:
+ def test_read_closed(self):
+ with self.open(support.TESTFN, "w") as f:
f.write("egg\n")
- with io.open(support.TESTFN, "r") as f:
- file = io.open(f.fileno(), "r", closefd=False)
+ with self.open(support.TESTFN, "r") as f:
+ file = self.open(f.fileno(), "r", closefd=False)
self.assertEqual(file.read(), "egg\n")
file.seek(0)
file.close()
@@ -295,85 +481,168 @@ class IOTest(unittest.TestCase):
def test_no_closefd_with_filename(self):
# can't use closefd in combination with a file name
- self.assertRaises(ValueError, io.open, support.TESTFN, "r", closefd=False)
+ self.assertRaises(ValueError, self.open, support.TESTFN, "r", closefd=False)
def test_closefd_attr(self):
- with io.open(support.TESTFN, "wb") as f:
+ with self.open(support.TESTFN, "wb") as f:
f.write(b"egg\n")
- with io.open(support.TESTFN, "r") as f:
+ with self.open(support.TESTFN, "r") as f:
self.assertEqual(f.buffer.raw.closefd, True)
- file = io.open(f.fileno(), "r", closefd=False)
+ file = self.open(f.fileno(), "r", closefd=False)
self.assertEqual(file.buffer.raw.closefd, False)
+ def test_garbage_collection(self):
+ # FileIO objects are collected, and collecting them flushes
+ # all data to disk.
+ f = self.FileIO(support.TESTFN, "wb")
+ f.write(b"abcxxx")
+ f.f = f
+ wr = weakref.ref(f)
+ del f
+ gc.collect()
+ self.assert_(wr() is None, wr)
+ with open(support.TESTFN, "rb") as f:
+ self.assertEqual(f.read(), b"abcxxx")
-class MemorySeekTestMixin:
-
- def testInit(self):
- buf = self.buftype("1234567890")
- bytesIo = self.ioclass(buf)
-
- def testRead(self):
- buf = self.buftype("1234567890")
- bytesIo = self.ioclass(buf)
-
- self.assertEquals(buf[:1], bytesIo.read(1))
- self.assertEquals(buf[1:5], bytesIo.read(4))
- self.assertEquals(buf[5:], bytesIo.read(900))
- self.assertEquals(self.EOF, bytesIo.read())
-
- def testReadNoArgs(self):
- buf = self.buftype("1234567890")
- bytesIo = self.ioclass(buf)
-
- self.assertEquals(buf, bytesIo.read())
- self.assertEquals(self.EOF, bytesIo.read())
-
- def testSeek(self):
- buf = self.buftype("1234567890")
- bytesIo = self.ioclass(buf)
-
- bytesIo.read(5)
- bytesIo.seek(0)
- self.assertEquals(buf, bytesIo.read())
-
- bytesIo.seek(3)
- self.assertEquals(buf[3:], bytesIo.read())
- self.assertRaises(TypeError, bytesIo.seek, 0.0)
-
- def testTell(self):
- buf = self.buftype("1234567890")
- bytesIo = self.ioclass(buf)
-
- self.assertEquals(0, bytesIo.tell())
- bytesIo.seek(5)
- self.assertEquals(5, bytesIo.tell())
- bytesIo.seek(10000)
- self.assertEquals(10000, bytesIo.tell())
+class CIOTest(IOTest):
+ pass
+class PyIOTest(IOTest):
+ pass
-class BytesIOTest(MemorySeekTestMixin, unittest.TestCase):
- @staticmethod
- def buftype(s):
- return s.encode("utf-8")
- ioclass = io.BytesIO
- EOF = b""
+class CommonBufferedTests:
+ # Tests common to BufferedReader, BufferedWriter and BufferedRandom
-class StringIOTest(MemorySeekTestMixin, unittest.TestCase):
- buftype = str
- ioclass = io.StringIO
- EOF = ""
+ def test_fileno(self):
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ self.assertEquals(42, bufio.fileno())
-class BufferedReaderTest(unittest.TestCase):
+ def test_no_fileno(self):
+ # XXX will we always have fileno() function? If so, kill
+ # this test. Else, write it.
+ pass
- def testRead(self):
- rawio = MockRawIO((b"abc", b"d", b"efg"))
- bufio = io.BufferedReader(rawio)
+ def test_invalid_args(self):
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ # Invalid whence
+ self.assertRaises(ValueError, bufio.seek, 0, -1)
+ self.assertRaises(ValueError, bufio.seek, 0, 3)
+ def test_override_destructor(self):
+ tp = self.tp
+ record = []
+ class MyBufferedIO(tp):
+ def __del__(self):
+ record.append(1)
+ try:
+ f = super().__del__
+ except AttributeError:
+ pass
+ else:
+ f()
+ def close(self):
+ record.append(2)
+ super().close()
+ def flush(self):
+ record.append(3)
+ super().flush()
+ rawio = self.MockRawIO()
+ bufio = MyBufferedIO(rawio)
+ writable = bufio.writable()
+ del bufio
+ if writable:
+ self.assertEqual(record, [1, 2, 3])
+ else:
+ self.assertEqual(record, [1, 2])
+
+ def test_context_manager(self):
+ # Test usability as a context manager
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ def _with():
+ with bufio:
+ pass
+ _with()
+ # bufio should now be closed, and using it a second time should raise
+ # a ValueError.
+ self.assertRaises(ValueError, _with)
+
+ def test_error_through_destructor(self):
+ # Test that the exception state is not modified by a destructor,
+ # even if close() fails.
+ rawio = self.CloseFailureIO()
+ def f():
+ self.tp(rawio).xyzzy
+ with support.captured_output("stderr") as s:
+ self.assertRaises(AttributeError, f)
+ s = s.getvalue().strip()
+ if s:
+ # The destructor *may* have printed an unraisable error, check it
+ self.assertEqual(len(s.splitlines()), 1)
+ self.assert_(s.startswith("Exception IOError: "), s)
+ self.assert_(s.endswith(" ignored"), s)
+
+
+class BufferedReaderTest(unittest.TestCase, CommonBufferedTests):
+ read_mode = "rb"
+
+ def test_constructor(self):
+ rawio = self.MockRawIO([b"abc"])
+ bufio = self.tp(rawio)
+ bufio.__init__(rawio)
+ bufio.__init__(rawio, buffer_size=1024)
+ bufio.__init__(rawio, buffer_size=16)
+ self.assertEquals(b"abc", bufio.read())
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=0)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-16)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-1)
+ rawio = self.MockRawIO([b"abc"])
+ bufio.__init__(rawio)
+ self.assertEquals(b"abc", bufio.read())
+
+ def test_read(self):
+ rawio = self.MockRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
self.assertEquals(b"abcdef", bufio.read(6))
-
- def testBuffering(self):
+ # Invalid args
+ self.assertRaises(ValueError, bufio.read, -2)
+
+ def test_read1(self):
+ rawio = self.MockRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
+ self.assertEquals(b"a", bufio.read(1))
+ self.assertEquals(b"b", bufio.read1(1))
+ self.assertEquals(rawio._reads, 1)
+ self.assertEquals(b"c", bufio.read1(100))
+ self.assertEquals(rawio._reads, 1)
+ self.assertEquals(b"d", bufio.read1(100))
+ self.assertEquals(rawio._reads, 2)
+ self.assertEquals(b"efg", bufio.read1(100))
+ self.assertEquals(rawio._reads, 3)
+ self.assertEquals(b"", bufio.read1(100))
+ # Invalid args
+ self.assertRaises(ValueError, bufio.read1, -1)
+
+ def test_readinto(self):
+ rawio = self.MockRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
+ b = bytearray(2)
+ self.assertEquals(bufio.readinto(b), 2)
+ self.assertEquals(b, b"ab")
+ self.assertEquals(bufio.readinto(b), 2)
+ self.assertEquals(b, b"cd")
+ self.assertEquals(bufio.readinto(b), 2)
+ self.assertEquals(b, b"ef")
+ self.assertEquals(bufio.readinto(b), 1)
+ self.assertEquals(b, b"gf")
+ self.assertEquals(bufio.readinto(b), 0)
+ self.assertEquals(b, b"gf")
+
+ def test_buffering(self):
data = b"abcdefghi"
dlen = len(data)
@@ -384,49 +653,40 @@ class BufferedReaderTest(unittest.TestCase):
]
for bufsize, buf_read_sizes, raw_read_sizes in tests:
- rawio = MockFileIO(data)
- bufio = io.BufferedReader(rawio, buffer_size=bufsize)
+ rawio = self.MockFileIO(data)
+ bufio = self.tp(rawio, buffer_size=bufsize)
pos = 0
for nbytes in buf_read_sizes:
self.assertEquals(bufio.read(nbytes), data[pos:pos+nbytes])
pos += nbytes
+ # this is mildly implementation-dependent
self.assertEquals(rawio.read_history, raw_read_sizes)
- def testReadNonBlocking(self):
+ def test_read_non_blocking(self):
# Inject some None's in there to simulate EWOULDBLOCK
- rawio = MockRawIO((b"abc", b"d", None, b"efg", None, None))
- bufio = io.BufferedReader(rawio)
+ rawio = self.MockRawIO((b"abc", b"d", None, b"efg", None, None, None))
+ bufio = self.tp(rawio)
self.assertEquals(b"abcd", bufio.read(6))
self.assertEquals(b"e", bufio.read(1))
self.assertEquals(b"fg", bufio.read())
+ self.assertEquals(b"", bufio.peek(1))
self.assert_(None is bufio.read())
self.assertEquals(b"", bufio.read())
- def testReadToEof(self):
- rawio = MockRawIO((b"abc", b"d", b"efg"))
- bufio = io.BufferedReader(rawio)
+ def test_read_past_eof(self):
+ rawio = self.MockRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
self.assertEquals(b"abcdefg", bufio.read(9000))
- def testReadNoArgs(self):
- rawio = MockRawIO((b"abc", b"d", b"efg"))
- bufio = io.BufferedReader(rawio)
+ def test_read_all(self):
+ rawio = self.MockRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
self.assertEquals(b"abcdefg", bufio.read())
- def testFileno(self):
- rawio = MockRawIO((b"abc", b"d", b"efg"))
- bufio = io.BufferedReader(rawio)
-
- self.assertEquals(42, bufio.fileno())
-
- def testFilenoNoFileno(self):
- # XXX will we always have fileno() function? If so, kill
- # this test. Else, write it.
- pass
-
- def testThreads(self):
+ def test_threads(self):
try:
# Write out many bytes with exactly the same number of 0's,
# 1's... 255's. This will help us check that concurrent reading
@@ -437,8 +697,8 @@ class BufferedReaderTest(unittest.TestCase):
s = bytes(bytearray(l))
with io.open(support.TESTFN, "wb") as f:
f.write(s)
- with io.open(support.TESTFN, "rb", buffering=0) as raw:
- bufio = io.BufferedReader(raw, 8)
+ with io.open(support.TESTFN, self.read_mode, buffering=0) as raw:
+ bufio = self.tp(raw, 8)
errors = []
results = []
def f():
@@ -468,80 +728,230 @@ class BufferedReaderTest(unittest.TestCase):
finally:
support.unlink(support.TESTFN)
+ def test_misbehaved_io(self):
+ rawio = self.MisbehavedRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
+ self.assertRaises(IOError, bufio.seek, 0)
+ self.assertRaises(IOError, bufio.tell)
+
+class CBufferedReaderTest(BufferedReaderTest):
+ tp = io.BufferedReader
+
+ def test_constructor(self):
+ BufferedReaderTest.test_constructor(self)
+ # The allocation can succeed on 32-bit builds, e.g. with more
+ # than 2GB RAM and a 64-bit kernel.
+ if sys.maxsize > 0x7FFFFFFF:
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ self.assertRaises((OverflowError, MemoryError, ValueError),
+ bufio.__init__, rawio, sys.maxsize)
+
+ def test_initialization(self):
+ rawio = self.MockRawIO([b"abc"])
+ bufio = self.tp(rawio)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=0)
+ self.assertRaises(ValueError, bufio.read)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-16)
+ self.assertRaises(ValueError, bufio.read)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-1)
+ self.assertRaises(ValueError, bufio.read)
+
+ def test_misbehaved_io_read(self):
+ rawio = self.MisbehavedRawIO((b"abc", b"d", b"efg"))
+ bufio = self.tp(rawio)
+ # _pyio.BufferedReader seems to implement reading different, so that
+ # checking this is not so easy.
+ self.assertRaises(IOError, bufio.read, 10)
+
+ def test_garbage_collection(self):
+ # C BufferedReader objects are collected.
+ # The Python version has __del__, so it ends into gc.garbage instead
+ rawio = self.FileIO(support.TESTFN, "w+b")
+ f = self.tp(rawio)
+ f.f = f
+ wr = weakref.ref(f)
+ del f
+ gc.collect()
+ self.assert_(wr() is None, wr)
+class PyBufferedReaderTest(BufferedReaderTest):
+ tp = pyio.BufferedReader
-class BufferedWriterTest(unittest.TestCase):
-
- def testWrite(self):
- # Write to the buffered IO but don't overflow the buffer.
- writer = MockRawIO()
- bufio = io.BufferedWriter(writer, 8)
-
- bufio.write(b"abc")
- self.assertFalse(writer._write_stack)
+class BufferedWriterTest(unittest.TestCase, CommonBufferedTests):
+ write_mode = "wb"
- def testWriteOverflow(self):
- writer = MockRawIO()
- bufio = io.BufferedWriter(writer, 8)
+ def test_constructor(self):
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ bufio.__init__(rawio)
+ bufio.__init__(rawio, buffer_size=1024)
+ bufio.__init__(rawio, buffer_size=16)
+ self.assertEquals(3, bufio.write(b"abc"))
+ bufio.flush()
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=0)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-16)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-1)
+ bufio.__init__(rawio)
+ self.assertEquals(3, bufio.write(b"ghi"))
+ bufio.flush()
+ self.assertEquals(b"".join(rawio._write_stack), b"abcghi")
+ def test_write(self):
+ # Write to the buffered IO but don't overflow the buffer.
+ writer = self.MockRawIO()
+ bufio = self.tp(writer, 8)
bufio.write(b"abc")
- bufio.write(b"defghijkl")
-
- self.assertEquals(b"abcdefghijkl", writer._write_stack[0])
-
- def testWriteNonBlocking(self):
- raw = MockNonBlockWriterIO((9, 2, 22, -6, 10, 12, 12))
- bufio = io.BufferedWriter(raw, 8, 16)
-
- bufio.write(b"asdf")
- bufio.write(b"asdfa")
- self.assertEquals(b"asdfasdfa", raw._write_stack[0])
-
- bufio.write(b"asdfasdfasdf")
- self.assertEquals(b"asdfasdfasdf", raw._write_stack[1])
- bufio.write(b"asdfasdfasdf")
- self.assertEquals(b"dfasdfasdf", raw._write_stack[2])
- self.assertEquals(b"asdfasdfasdf", raw._write_stack[3])
-
- bufio.write(b"asdfasdfasdf")
-
- # XXX I don't like this test. It relies too heavily on how the
- # algorithm actually works, which we might change. Refactor
- # later.
-
- def testFileno(self):
- rawio = MockRawIO((b"abc", b"d", b"efg"))
- bufio = io.BufferedWriter(rawio)
-
- self.assertEquals(42, bufio.fileno())
+ self.assertFalse(writer._write_stack)
- def testFlush(self):
- writer = MockRawIO()
- bufio = io.BufferedWriter(writer, 8)
+ def test_write_overflow(self):
+ writer = self.MockRawIO()
+ bufio = self.tp(writer, 8)
+ contents = b"abcdefghijklmnop"
+ for n in range(0, len(contents), 3):
+ bufio.write(contents[n:n+3])
+ flushed = b"".join(writer._write_stack)
+ # At least (total - 8) bytes were implicitly flushed, perhaps more
+ # depending on the implementation.
+ self.assert_(flushed.startswith(contents[:-8]), flushed)
+
+ def check_writes(self, intermediate_func):
+ # Lots of writes, test the flushed output is as expected.
+ contents = bytes(range(256)) * 1000
+ n = 0
+ writer = self.MockRawIO()
+ bufio = self.tp(writer, 13)
+ # Generator of write sizes: repeat each N 15 times then proceed to N+1
+ def gen_sizes():
+ for size in count(1):
+ for i in range(15):
+ yield size
+ sizes = gen_sizes()
+ while n < len(contents):
+ size = min(next(sizes), len(contents) - n)
+ self.assertEquals(bufio.write(contents[n:n+size]), size)
+ intermediate_func(bufio)
+ n += size
+ bufio.flush()
+ self.assertEquals(contents, b"".join(writer._write_stack))
+
+ def test_writes(self):
+ self.check_writes(lambda bufio: None)
+
+ def test_writes_and_flushes(self):
+ self.check_writes(lambda bufio: bufio.flush())
+
+ def test_writes_and_seeks(self):
+ def _seekabs(bufio):
+ pos = bufio.tell()
+ bufio.seek(pos + 1, 0)
+ bufio.seek(pos - 1, 0)
+ bufio.seek(pos, 0)
+ self.check_writes(_seekabs)
+ def _seekrel(bufio):
+ pos = bufio.seek(0, 1)
+ bufio.seek(+1, 1)
+ bufio.seek(-1, 1)
+ bufio.seek(pos, 0)
+ self.check_writes(_seekrel)
+
+ def test_writes_and_truncates(self):
+ self.check_writes(lambda bufio: bufio.truncate(bufio.tell()))
+
+ def test_write_non_blocking(self):
+ raw = self.MockNonBlockWriterIO()
+ bufio = self.tp(raw, 8, 8)
+
+ self.assertEquals(bufio.write(b"abcd"), 4)
+ self.assertEquals(bufio.write(b"efghi"), 5)
+ # 1 byte will be written, the rest will be buffered
+ raw.block_on(b"k")
+ self.assertEquals(bufio.write(b"jklmn"), 5)
+
+ # 8 bytes will be written, 8 will be buffered and the rest will be lost
+ raw.block_on(b"0")
+ try:
+ bufio.write(b"opqrwxyz0123456789")
+ except self.BlockingIOError as e:
+ written = e.characters_written
+ else:
+ self.fail("BlockingIOError should have been raised")
+ self.assertEquals(written, 16)
+ self.assertEquals(raw.pop_written(),
+ b"abcdefghijklmnopqrwxyz")
+
+ self.assertEquals(bufio.write(b"ABCDEFGHI"), 9)
+ s = raw.pop_written()
+ # Previously buffered bytes were flushed
+ self.assertTrue(s.startswith(b"01234567A"), s)
+
+ def test_write_and_rewind(self):
+ raw = io.BytesIO()
+ bufio = self.tp(raw, 4)
+ self.assertEqual(bufio.write(b"abcdef"), 6)
+ self.assertEqual(bufio.tell(), 6)
+ bufio.seek(0, 0)
+ self.assertEqual(bufio.write(b"XY"), 2)
+ bufio.seek(6, 0)
+ self.assertEqual(raw.getvalue(), b"XYcdef")
+ self.assertEqual(bufio.write(b"123456"), 6)
+ bufio.flush()
+ self.assertEqual(raw.getvalue(), b"XYcdef123456")
+ def test_flush(self):
+ writer = self.MockRawIO()
+ bufio = self.tp(writer, 8)
bufio.write(b"abc")
bufio.flush()
+ self.assertEquals(b"abc", writer._write_stack[0])
+ def test_destructor(self):
+ writer = self.MockRawIO()
+ bufio = self.tp(writer, 8)
+ bufio.write(b"abc")
+ del bufio
self.assertEquals(b"abc", writer._write_stack[0])
- def testThreads(self):
- # BufferedWriter should not raise exceptions or crash
- # when called from multiple threads.
+ def test_truncate(self):
+ # Truncate implicitly flushes the buffer.
+ with io.open(support.TESTFN, self.write_mode, buffering=0) as raw:
+ bufio = self.tp(raw, 8)
+ bufio.write(b"abcdef")
+ self.assertEqual(bufio.truncate(3), 3)
+ self.assertEqual(bufio.tell(), 3)
+ with io.open(support.TESTFN, "rb", buffering=0) as f:
+ self.assertEqual(f.read(), b"abc")
+
+ def test_threads(self):
try:
+ # Write out many bytes from many threads and test they were
+ # all flushed.
+ N = 1000
+ contents = bytes(range(256)) * N
+ sizes = cycle([1, 19])
+ n = 0
+ queue = deque()
+ while n < len(contents):
+ size = next(sizes)
+ queue.append(contents[n:n+size])
+ n += size
+ del contents
# We use a real file object because it allows us to
# exercise situations where the GIL is released before
# writing the buffer to the raw streams. This is in addition
# to concurrency issues due to switching threads in the middle
# of Python code.
- with io.open(support.TESTFN, "wb", buffering=0) as raw:
- bufio = io.BufferedWriter(raw, 8)
+ with io.open(support.TESTFN, self.write_mode, buffering=0) as raw:
+ bufio = self.tp(raw, 8)
errors = []
def f():
try:
- # Write enough bytes to flush the buffer
- s = b"a" * 19
- for i in range(50):
+ while True:
+ try:
+ s = queue.popleft()
+ except IndexError:
+ return
bufio.write(s)
except Exception as e:
errors.append(e)
@@ -554,37 +964,102 @@ class BufferedWriterTest(unittest.TestCase):
t.join()
self.assertFalse(errors,
"the following exceptions were caught: %r" % errors)
+ bufio.close()
+ with io.open(support.TESTFN, "rb") as f:
+ s = f.read()
+ for i in range(256):
+ self.assertEquals(s.count(bytes([i])), N)
finally:
support.unlink(support.TESTFN)
+ def test_misbehaved_io(self):
+ rawio = self.MisbehavedRawIO()
+ bufio = self.tp(rawio, 5)
+ self.assertRaises(IOError, bufio.seek, 0)
+ self.assertRaises(IOError, bufio.tell)
+ self.assertRaises(IOError, bufio.write, b"abcdef")
+
+class CBufferedWriterTest(BufferedWriterTest):
+ tp = io.BufferedWriter
+
+ def test_constructor(self):
+ BufferedWriterTest.test_constructor(self)
+ # The allocation can succeed on 32-bit builds, e.g. with more
+ # than 2GB RAM and a 64-bit kernel.
+ if sys.maxsize > 0x7FFFFFFF:
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ self.assertRaises((OverflowError, MemoryError, ValueError),
+ bufio.__init__, rawio, sys.maxsize)
+
+ def test_initialization(self):
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=0)
+ self.assertRaises(ValueError, bufio.write, b"def")
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-16)
+ self.assertRaises(ValueError, bufio.write, b"def")
+ self.assertRaises(ValueError, bufio.__init__, rawio, buffer_size=-1)
+ self.assertRaises(ValueError, bufio.write, b"def")
+
+ def test_garbage_collection(self):
+ # C BufferedWriter objects are collected, and collecting them flushes
+ # all data to disk.
+ # The Python version has __del__, so it ends into gc.garbage instead
+ rawio = self.FileIO(support.TESTFN, "w+b")
+ f = self.tp(rawio)
+ f.write(b"123xxx")
+ f.x = f
+ wr = weakref.ref(f)
+ del f
+ gc.collect()
+ self.assert_(wr() is None, wr)
+ with open(support.TESTFN, "rb") as f:
+ self.assertEqual(f.read(), b"123xxx")
+
+
+class PyBufferedWriterTest(BufferedWriterTest):
+ tp = pyio.BufferedWriter
class BufferedRWPairTest(unittest.TestCase):
- def testRWPair(self):
- r = MockRawIO(())
- w = MockRawIO()
- pair = io.BufferedRWPair(r, w)
+ def test_basic(self):
+ r = self.MockRawIO(())
+ w = self.MockRawIO()
+ pair = self.tp(r, w)
self.assertFalse(pair.closed)
# XXX More Tests
+class CBufferedRWPairTest(BufferedRWPairTest):
+ tp = io.BufferedRWPair
-class BufferedRandomTest(unittest.TestCase):
+class PyBufferedRWPairTest(BufferedRWPairTest):
+ tp = pyio.BufferedRWPair
- def testReadAndWrite(self):
- raw = MockRawIO((b"asdf", b"ghjk"))
- rw = io.BufferedRandom(raw, 8, 12)
+
+class BufferedRandomTest(BufferedReaderTest, BufferedWriterTest):
+ read_mode = "rb+"
+ write_mode = "wb+"
+
+ def test_constructor(self):
+ BufferedReaderTest.test_constructor(self)
+ BufferedWriterTest.test_constructor(self)
+
+ def test_read_and_write(self):
+ raw = self.MockRawIO((b"asdf", b"ghjk"))
+ rw = self.tp(raw, 8, 12)
self.assertEqual(b"as", rw.read(2))
rw.write(b"ddd")
rw.write(b"eee")
self.assertFalse(raw._write_stack) # Buffer writes
- self.assertEqual(b"ghjk", rw.read()) # This read forces write flush
+ self.assertEqual(b"ghjk", rw.read())
self.assertEquals(b"dddeee", raw._write_stack[0])
- def testSeekAndTell(self):
- raw = io.BytesIO(b"asdfghjkl")
- rw = io.BufferedRandom(raw)
+ def test_seek_and_tell(self):
+ raw = self.BytesIO(b"asdfghjkl")
+ rw = self.tp(raw)
self.assertEquals(b"as", rw.read(2))
self.assertEquals(2, rw.tell())
@@ -602,6 +1077,115 @@ class BufferedRandomTest(unittest.TestCase):
self.assertEquals(b"fl", rw.read(11))
self.assertRaises(TypeError, rw.seek, 0.0)
+ def check_flush_and_read(self, read_func):
+ raw = self.BytesIO(b"abcdefghi")
+ bufio = self.tp(raw)
+
+ self.assertEquals(b"ab", read_func(bufio, 2))
+ bufio.write(b"12")
+ self.assertEquals(b"ef", read_func(bufio, 2))
+ self.assertEquals(6, bufio.tell())
+ bufio.flush()
+ self.assertEquals(6, bufio.tell())
+ self.assertEquals(b"ghi", read_func(bufio))
+ raw.seek(0, 0)
+ raw.write(b"XYZ")
+ # flush() resets the read buffer
+ bufio.flush()
+ bufio.seek(0, 0)
+ self.assertEquals(b"XYZ", read_func(bufio, 3))
+
+ def test_flush_and_read(self):
+ self.check_flush_and_read(lambda bufio, *args: bufio.read(*args))
+
+ def test_flush_and_readinto(self):
+ def _readinto(bufio, n=-1):
+ b = bytearray(n if n >= 0 else 9999)
+ n = bufio.readinto(b)
+ return bytes(b[:n])
+ self.check_flush_and_read(_readinto)
+
+ def test_flush_and_peek(self):
+ def _peek(bufio, n=-1):
+ # This relies on the fact that the buffer can contain the whole
+ # raw stream, otherwise peek() can return less.
+ b = bufio.peek(n)
+ if n != -1:
+ b = b[:n]
+ bufio.seek(len(b), 1)
+ return b
+ self.check_flush_and_read(_peek)
+
+ def test_flush_and_write(self):
+ raw = self.BytesIO(b"abcdefghi")
+ bufio = self.tp(raw)
+
+ bufio.write(b"123")
+ bufio.flush()
+ bufio.write(b"45")
+ bufio.flush()
+ bufio.seek(0, 0)
+ self.assertEquals(b"12345fghi", raw.getvalue())
+ self.assertEquals(b"12345fghi", bufio.read())
+
+ def test_threads(self):
+ BufferedReaderTest.test_threads(self)
+ BufferedWriterTest.test_threads(self)
+
+ def test_writes_and_peek(self):
+ def _peek(bufio):
+ bufio.peek(1)
+ self.check_writes(_peek)
+ def _peek(bufio):
+ pos = bufio.tell()
+ bufio.seek(-1, 1)
+ bufio.peek(1)
+ bufio.seek(pos, 0)
+ self.check_writes(_peek)
+
+ def test_writes_and_reads(self):
+ def _read(bufio):
+ bufio.seek(-1, 1)
+ bufio.read(1)
+ self.check_writes(_read)
+
+ def test_writes_and_read1s(self):
+ def _read1(bufio):
+ bufio.seek(-1, 1)
+ bufio.read1(1)
+ self.check_writes(_read1)
+
+ def test_writes_and_readintos(self):
+ def _read(bufio):
+ bufio.seek(-1, 1)
+ bufio.readinto(bytearray(1))
+ self.check_writes(_read)
+
+ def test_misbehaved_io(self):
+ BufferedReaderTest.test_misbehaved_io(self)
+ BufferedWriterTest.test_misbehaved_io(self)
+
+class CBufferedRandomTest(BufferedRandomTest):
+ tp = io.BufferedRandom
+
+ def test_constructor(self):
+ BufferedRandomTest.test_constructor(self)
+ # The allocation can succeed on 32-bit builds, e.g. with more
+ # than 2GB RAM and a 64-bit kernel.
+ if sys.maxsize > 0x7FFFFFFF:
+ rawio = self.MockRawIO()
+ bufio = self.tp(rawio)
+ self.assertRaises((OverflowError, MemoryError, ValueError),
+ bufio.__init__, rawio, sys.maxsize)
+
+ def test_garbage_collection(self):
+ CBufferedReaderTest.test_garbage_collection(self)
+ CBufferedWriterTest.test_garbage_collection(self)
+
+class PyBufferedRandomTest(BufferedRandomTest):
+ tp = pyio.BufferedRandom
+
+
# To fully exercise seek/tell, the StatefulIncrementalDecoder has these
# properties:
# - A single output character can correspond to many bytes of input.
@@ -735,7 +1319,7 @@ class StatefulIncrementalDecoderTest(unittest.TestCase):
'm--------------.')
]
- def testDecoder(self):
+ def test_decoder(self):
# Try a few one-shot test cases.
for input, eof, output in self.test_cases:
d = StatefulIncrementalDecoder()
@@ -756,10 +1340,24 @@ class TextIOWrapperTest(unittest.TestCase):
def tearDown(self):
support.unlink(support.TESTFN)
- def testLineBuffering(self):
- r = io.BytesIO()
- b = io.BufferedWriter(r, 1000)
- t = io.TextIOWrapper(b, newline="\n", line_buffering=True)
+ def test_constructor(self):
+ r = self.BytesIO(b"\xc3\xa9\n\n")
+ b = self.BufferedReader(r, 1000)
+ t = self.TextIOWrapper(b)
+ t.__init__(b, encoding="latin1", newline="\r\n")
+ self.assertEquals(t.encoding, "latin1")
+ self.assertEquals(t.line_buffering, False)
+ t.__init__(b, encoding="utf8", line_buffering=True)
+ self.assertEquals(t.encoding, "utf8")
+ self.assertEquals(t.line_buffering, True)
+ self.assertEquals("\xe9\n", t.readline())
+ self.assertRaises(TypeError, t.__init__, b, newline=42)
+ self.assertRaises(ValueError, t.__init__, b, newline='xyzzy')
+
+ def test_line_buffering(self):
+ r = self.BytesIO()
+ b = self.BufferedWriter(r, 1000)
+ t = self.TextIOWrapper(b, newline="\n", line_buffering=True)
t.write("X")
self.assertEquals(r.getvalue(), b"") # No flush happened
t.write("Y\nZ")
@@ -767,83 +1365,58 @@ class TextIOWrapperTest(unittest.TestCase):
t.write("A\rB")
self.assertEquals(r.getvalue(), b"XY\nZA\rB")
- def testEncodingErrorsReading(self):
+ def test_encoding(self):
+ # Check the encoding attribute is always set, and valid
+ b = self.BytesIO()
+ t = self.TextIOWrapper(b, encoding="utf8")
+ self.assertEqual(t.encoding, "utf8")
+ t = self.TextIOWrapper(b)
+ self.assert_(t.encoding is not None)
+ codecs.lookup(t.encoding)
+
+ def test_encoding_errors_reading(self):
# (1) default
- b = io.BytesIO(b"abc\n\xff\n")
- t = io.TextIOWrapper(b, encoding="ascii")
+ b = self.BytesIO(b"abc\n\xff\n")
+ t = self.TextIOWrapper(b, encoding="ascii")
self.assertRaises(UnicodeError, t.read)
# (2) explicit strict
- b = io.BytesIO(b"abc\n\xff\n")
- t = io.TextIOWrapper(b, encoding="ascii", errors="strict")
+ b = self.BytesIO(b"abc\n\xff\n")
+ t = self.TextIOWrapper(b, encoding="ascii", errors="strict")
self.assertRaises(UnicodeError, t.read)
# (3) ignore
- b = io.BytesIO(b"abc\n\xff\n")
- t = io.TextIOWrapper(b, encoding="ascii", errors="ignore")
+ b = self.BytesIO(b"abc\n\xff\n")
+ t = self.TextIOWrapper(b, encoding="ascii", errors="ignore")
self.assertEquals(t.read(), "abc\n\n")
# (4) replace
- b = io.BytesIO(b"abc\n\xff\n")
- t = io.TextIOWrapper(b, encoding="ascii", errors="replace")
+ b = self.BytesIO(b"abc\n\xff\n")
+ t = self.TextIOWrapper(b, encoding="ascii", errors="replace")
self.assertEquals(t.read(), "abc\n\ufffd\n")
- def testEncodingErrorsWriting(self):
+ def test_encoding_errors_writing(self):
# (1) default
- b = io.BytesIO()
- t = io.TextIOWrapper(b, encoding="ascii")
+ b = self.BytesIO()
+ t = self.TextIOWrapper(b, encoding="ascii")
self.assertRaises(UnicodeError, t.write, "\xff")
# (2) explicit strict
- b = io.BytesIO()
- t = io.TextIOWrapper(b, encoding="ascii", errors="strict")
+ b = self.BytesIO()
+ t = self.TextIOWrapper(b, encoding="ascii", errors="strict")
self.assertRaises(UnicodeError, t.write, "\xff")
# (3) ignore
- b = io.BytesIO()
- t = io.TextIOWrapper(b, encoding="ascii", errors="ignore",
+ b = self.BytesIO()
+ t = self.TextIOWrapper(b, encoding="ascii", errors="ignore",
newline="\n")
t.write("abc\xffdef\n")
t.flush()
self.assertEquals(b.getvalue(), b"abcdef\n")
# (4) replace
- b = io.BytesIO()
- t = io.TextIOWrapper(b, encoding="ascii", errors="replace",
+ b = self.BytesIO()
+ t = self.TextIOWrapper(b, encoding="ascii", errors="replace",
newline="\n")
t.write("abc\xffdef\n")
t.flush()
self.assertEquals(b.getvalue(), b"abc?def\n")
- def testNewlinesInput(self):
- testdata = b"AAA\nBBB\nCCC\rDDD\rEEE\r\nFFF\r\nGGG"
- normalized = testdata.replace(b"\r\n", b"\n").replace(b"\r", b"\n")
- for newline, expected in [
- (None, normalized.decode("ascii").splitlines(True)),
- ("", testdata.decode("ascii").splitlines(True)),
- ("\n", ["AAA\n", "BBB\n", "CCC\rDDD\rEEE\r\n", "FFF\r\n", "GGG"]),
- ("\r\n", ["AAA\nBBB\nCCC\rDDD\rEEE\r\n", "FFF\r\n", "GGG"]),
- ("\r", ["AAA\nBBB\nCCC\r", "DDD\r", "EEE\r", "\nFFF\r", "\nGGG"]),
- ]:
- buf = io.BytesIO(testdata)
- txt = io.TextIOWrapper(buf, encoding="ascii", newline=newline)
- self.assertEquals(txt.readlines(), expected)
- txt.seek(0)
- self.assertEquals(txt.read(), "".join(expected))
-
- def testNewlinesOutput(self):
- testdict = {
- "": b"AAA\nBBB\nCCC\nX\rY\r\nZ",
- "\n": b"AAA\nBBB\nCCC\nX\rY\r\nZ",
- "\r": b"AAA\rBBB\rCCC\rX\rY\r\rZ",
- "\r\n": b"AAA\r\nBBB\r\nCCC\r\nX\rY\r\r\nZ",
- }
- tests = [(None, testdict[os.linesep])] + sorted(testdict.items())
- for newline, expected in tests:
- buf = io.BytesIO()
- txt = io.TextIOWrapper(buf, encoding="ascii", newline=newline)
- txt.write("AAA\nB")
- txt.write("BB\nCCC\n")
- txt.write("X\rY\r\nZ")
- txt.flush()
- self.assertEquals(buf.closed, False)
- self.assertEquals(buf.getvalue(), expected)
-
- def testNewlines(self):
+ def test_newlines(self):
input_lines = [ "unix\n", "windows\r\n", "os9\r", "last\n", "nonl" ]
tests = [
@@ -867,8 +1440,8 @@ class TextIOWrapperTest(unittest.TestCase):
for do_reads in (False, True):
for bufsize in range(1, 10):
for newline, exp_lines in tests:
- bufio = io.BufferedReader(io.BytesIO(data), bufsize)
- textio = io.TextIOWrapper(bufio, newline=newline,
+ bufio = self.BufferedReader(self.BytesIO(data), bufsize)
+ textio = self.TextIOWrapper(bufio, newline=newline,
encoding=encoding)
if do_reads:
got_lines = []
@@ -885,60 +1458,100 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(got_line, exp_line)
self.assertEquals(len(got_lines), len(exp_lines))
- def testNewlinesInput(self):
- testdata = b"AAA\nBBB\nCCC\rDDD\rEEE\r\nFFF\r\nGGG"
+ def test_newlines_input(self):
+ testdata = b"AAA\nBB\x00B\nCCC\rDDD\rEEE\r\nFFF\r\nGGG"
normalized = testdata.replace(b"\r\n", b"\n").replace(b"\r", b"\n")
for newline, expected in [
(None, normalized.decode("ascii").splitlines(True)),
("", testdata.decode("ascii").splitlines(True)),
- ("\n", ["AAA\n", "BBB\n", "CCC\rDDD\rEEE\r\n", "FFF\r\n", "GGG"]),
- ("\r\n", ["AAA\nBBB\nCCC\rDDD\rEEE\r\n", "FFF\r\n", "GGG"]),
- ("\r", ["AAA\nBBB\nCCC\r", "DDD\r", "EEE\r", "\nFFF\r", "\nGGG"]),
+ ("\n", ["AAA\n", "BB\x00B\n", "CCC\rDDD\rEEE\r\n", "FFF\r\n", "GGG"]),
+ ("\r\n", ["AAA\nBB\x00B\nCCC\rDDD\rEEE\r\n", "FFF\r\n", "GGG"]),
+ ("\r", ["AAA\nBB\x00B\nCCC\r", "DDD\r", "EEE\r", "\nFFF\r", "\nGGG"]),
]:
- buf = io.BytesIO(testdata)
- txt = io.TextIOWrapper(buf, encoding="ascii", newline=newline)
+ buf = self.BytesIO(testdata)
+ txt = self.TextIOWrapper(buf, encoding="ascii", newline=newline)
self.assertEquals(txt.readlines(), expected)
txt.seek(0)
self.assertEquals(txt.read(), "".join(expected))
- def testNewlinesOutput(self):
- data = "AAA\nBBB\rCCC\n"
- data_lf = b"AAA\nBBB\rCCC\n"
- data_cr = b"AAA\rBBB\rCCC\r"
- data_crlf = b"AAA\r\nBBB\rCCC\r\n"
- save_linesep = os.linesep
- try:
- for os.linesep, newline, expected in [
- ("\n", None, data_lf),
- ("\r\n", None, data_crlf),
- ("\n", "", data_lf),
- ("\r\n", "", data_lf),
- ("\n", "\n", data_lf),
- ("\r\n", "\n", data_lf),
- ("\n", "\r", data_cr),
- ("\r\n", "\r", data_cr),
- ("\n", "\r\n", data_crlf),
- ("\r\n", "\r\n", data_crlf),
- ]:
- buf = io.BytesIO()
- txt = io.TextIOWrapper(buf, encoding="ascii", newline=newline)
- txt.write(data)
- txt.close()
- self.assertEquals(buf.closed, True)
- self.assertRaises(ValueError, buf.getvalue)
- finally:
- os.linesep = save_linesep
+ def test_newlines_output(self):
+ testdict = {
+ "": b"AAA\nBBB\nCCC\nX\rY\r\nZ",
+ "\n": b"AAA\nBBB\nCCC\nX\rY\r\nZ",
+ "\r": b"AAA\rBBB\rCCC\rX\rY\r\rZ",
+ "\r\n": b"AAA\r\nBBB\r\nCCC\r\nX\rY\r\r\nZ",
+ }
+ tests = [(None, testdict[os.linesep])] + sorted(testdict.items())
+ for newline, expected in tests:
+ buf = self.BytesIO()
+ txt = self.TextIOWrapper(buf, encoding="ascii", newline=newline)
+ txt.write("AAA\nB")
+ txt.write("BB\nCCC\n")
+ txt.write("X\rY\r\nZ")
+ txt.flush()
+ self.assertEquals(buf.closed, False)
+ self.assertEquals(buf.getvalue(), expected)
+
+ def test_destructor(self):
+ l = []
+ base = self.BytesIO
+ class MyBytesIO(base):
+ def close(self):
+ l.append(self.getvalue())
+ base.close(self)
+ b = MyBytesIO()
+ t = self.TextIOWrapper(b, encoding="ascii")
+ t.write("abc")
+ del t
+ self.assertEquals([b"abc"], l)
+
+ def test_override_destructor(self):
+ record = []
+ class MyTextIO(self.TextIOWrapper):
+ def __del__(self):
+ record.append(1)
+ try:
+ f = super().__del__
+ except AttributeError:
+ pass
+ else:
+ f()
+ def close(self):
+ record.append(2)
+ super().close()
+ def flush(self):
+ record.append(3)
+ super().flush()
+ b = self.BytesIO()
+ t = MyTextIO(b, encoding="ascii")
+ del t
+ self.assertEqual(record, [1, 2, 3])
+
+ def test_error_through_destructor(self):
+ # Test that the exception state is not modified by a destructor,
+ # even if close() fails.
+ rawio = self.CloseFailureIO()
+ def f():
+ self.TextIOWrapper(rawio).xyzzy
+ with support.captured_output("stderr") as s:
+ self.assertRaises(AttributeError, f)
+ s = s.getvalue().strip()
+ if s:
+ # The destructor *may* have printed an unraisable error, check it
+ self.assertEqual(len(s.splitlines()), 1)
+ self.assert_(s.startswith("Exception IOError: "), s)
+ self.assert_(s.endswith(" ignored"), s)
# Systematic tests of the text I/O API
- def testBasicIO(self):
+ def test_basic_io(self):
for chunksize in (1, 2, 3, 4, 5, 15, 16, 17, 31, 32, 33, 63, 64, 65):
for enc in "ascii", "latin1", "utf8" :# , "utf-16-be", "utf-16-le":
- f = io.open(support.TESTFN, "w+", encoding=enc)
+ f = self.open(support.TESTFN, "w+", encoding=enc)
f._CHUNK_SIZE = chunksize
self.assertEquals(f.write("abc"), 3)
f.close()
- f = io.open(support.TESTFN, "r+", encoding=enc)
+ f = self.open(support.TESTFN, "r+", encoding=enc)
f._CHUNK_SIZE = chunksize
self.assertEquals(f.tell(), 0)
self.assertEquals(f.read(), "abc")
@@ -980,8 +1593,8 @@ class TextIOWrapperTest(unittest.TestCase):
rlines.append((pos, line))
self.assertEquals(rlines, wlines)
- def testTelling(self):
- f = io.open(support.TESTFN, "w+", encoding="utf8")
+ def test_telling(self):
+ f = self.open(support.TESTFN, "w+", encoding="utf8")
p0 = f.tell()
f.write("\xff\n")
p1 = f.tell()
@@ -1000,8 +1613,8 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(f.tell(), p2)
f.close()
- def testSeeking(self):
- chunk_size = io.TextIOWrapper._CHUNK_SIZE
+ def test_seeking(self):
+ chunk_size = _default_chunk_size()
prefix_size = chunk_size - 2
u_prefix = "a" * prefix_size
prefix = bytes(u_prefix.encode("utf-8"))
@@ -1009,48 +1622,46 @@ class TextIOWrapperTest(unittest.TestCase):
u_suffix = "\u8888\n"
suffix = bytes(u_suffix.encode("utf-8"))
line = prefix + suffix
- f = io.open(support.TESTFN, "wb")
+ f = self.open(support.TESTFN, "wb")
f.write(line*2)
f.close()
- f = io.open(support.TESTFN, "r", encoding="utf-8")
+ f = self.open(support.TESTFN, "r", encoding="utf-8")
s = f.read(prefix_size)
self.assertEquals(s, str(prefix, "ascii"))
self.assertEquals(f.tell(), prefix_size)
self.assertEquals(f.readline(), u_suffix)
- def testSeekingToo(self):
+ def test_seeking_too(self):
# Regression test for a specific bug
data = b'\xe0\xbf\xbf\n'
- f = io.open(support.TESTFN, "wb")
+ f = self.open(support.TESTFN, "wb")
f.write(data)
f.close()
- f = io.open(support.TESTFN, "r", encoding="utf-8")
+ f = self.open(support.TESTFN, "r", encoding="utf-8")
f._CHUNK_SIZE # Just test that it exists
f._CHUNK_SIZE = 2
f.readline()
f.tell()
- def testSeekAndTell(self):
- """Test seek/tell using the StatefulIncrementalDecoder."""
- # Make this test faster by forcing a smaller (but large enough)
- # chunk size. The bigger the chunker size, the slower seek() is,
- # as it tries to replay character decoding one byte at a time.
- CHUNK_SIZE = 256
+ def test_seek_and_tell(self):
+ #Test seek/tell using the StatefulIncrementalDecoder.
+ # Make test faster by doing smaller seeks
+ CHUNK_SIZE = 128
def testSeekAndTellWithData(data, min_pos=0):
"""Tell/seek to various points within a data stream and ensure
that the decoded data returned by read() is consistent."""
- f = io.open(support.TESTFN, 'wb')
+ f = self.open(support.TESTFN, 'wb')
f.write(data)
f.close()
- f = io.open(support.TESTFN, encoding='test_decoder')
+ f = self.open(support.TESTFN, encoding='test_decoder')
+ f._CHUNK_SIZE = CHUNK_SIZE
decoded = f.read()
f.close()
for i in range(min_pos, len(decoded) + 1): # seek positions
for j in [1, 5, len(decoded) - i]: # read lengths
- f = io.open(support.TESTFN, encoding='test_decoder')
- f._CHUNK_SIZE = CHUNK_SIZE
+ f = self.open(support.TESTFN, encoding='test_decoder')
self.assertEquals(f.read(i), decoded[:i])
cookie = f.tell()
self.assertEquals(f.read(j), decoded[i:i + j])
@@ -1079,7 +1690,7 @@ class TextIOWrapperTest(unittest.TestCase):
finally:
StatefulIncrementalDecoder.codecEnabled = 0
- def testEncodedWrites(self):
+ def test_encoded_writes(self):
data = "1234567890"
tests = ("utf-16",
"utf-16-le",
@@ -1088,8 +1699,8 @@ class TextIOWrapperTest(unittest.TestCase):
"utf-32-le",
"utf-32-be")
for encoding in tests:
- buf = io.BytesIO()
- f = io.TextIOWrapper(buf, encoding=encoding)
+ buf = self.BytesIO()
+ f = self.TextIOWrapper(buf, encoding=encoding)
# Check if the BOM is written only once (see issue1753).
f.write(data)
f.write(data)
@@ -1097,45 +1708,8 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(f.read(), data * 2)
self.assertEquals(buf.getvalue(), (data * 2).encode(encoding))
- def timingTest(self):
- timer = time.time
- enc = "utf8"
- line = "\0\x0f\xff\u0fff\uffff\U000fffff\U0010ffff"*3 + "\n"
- nlines = 10000
- nchars = len(line)
- nbytes = len(line.encode(enc))
- for chunk_size in (32, 64, 128, 256):
- f = io.open(support.TESTFN, "w+", encoding=enc)
- f._CHUNK_SIZE = chunk_size
- t0 = timer()
- for i in range(nlines):
- f.write(line)
- f.flush()
- t1 = timer()
- f.seek(0)
- for line in f:
- pass
- t2 = timer()
- f.seek(0)
- while f.readline():
- pass
- t3 = timer()
- f.seek(0)
- while f.readline():
- f.tell()
- t4 = timer()
- f.close()
- if support.verbose:
- print("\nTiming test: %d lines of %d characters (%d bytes)" %
- (nlines, nchars, nbytes))
- print("File chunk size: %6s" % f._CHUNK_SIZE)
- print("Writing: %6.3f seconds" % (t1-t0))
- print("Reading using iteration: %6.3f seconds" % (t2-t1))
- print("Reading using readline(): %6.3f seconds" % (t3-t2))
- print("Using readline()+tell(): %6.3f seconds" % (t4-t3))
-
- def testReadOneByOne(self):
- txt = io.TextIOWrapper(io.BytesIO(b"AA\r\nBB"))
+ def test_read_one_by_one(self):
+ txt = self.TextIOWrapper(self.BytesIO(b"AA\r\nBB"))
reads = ""
while True:
c = txt.read(1)
@@ -1145,9 +1719,9 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(reads, "AA\nBB")
# read in amounts equal to TextIOWrapper._CHUNK_SIZE which is 128.
- def testReadByChunk(self):
+ def test_read_by_chunk(self):
# make sure "\r\n" straddles 128 char boundary.
- txt = io.TextIOWrapper(io.BytesIO(b"A" * 127 + b"\r\nB"))
+ txt = self.TextIOWrapper(self.BytesIO(b"A" * 127 + b"\r\nB"))
reads = ""
while True:
c = txt.read(128)
@@ -1157,7 +1731,7 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(reads, "A"*127+"\nB")
def test_issue1395_1(self):
- txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ascii")
+ txt = self.TextIOWrapper(self.BytesIO(self.testdata), encoding="ascii")
# read one char at a time
reads = ""
@@ -1169,7 +1743,7 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(reads, self.normalized)
def test_issue1395_2(self):
- txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ascii")
+ txt = self.TextIOWrapper(self.BytesIO(self.testdata), encoding="ascii")
txt._CHUNK_SIZE = 4
reads = ""
@@ -1181,7 +1755,7 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(reads, self.normalized)
def test_issue1395_3(self):
- txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ascii")
+ txt = self.TextIOWrapper(self.BytesIO(self.testdata), encoding="ascii")
txt._CHUNK_SIZE = 4
reads = txt.read(4)
@@ -1192,7 +1766,7 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(reads, self.normalized)
def test_issue1395_4(self):
- txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ascii")
+ txt = self.TextIOWrapper(self.BytesIO(self.testdata), encoding="ascii")
txt._CHUNK_SIZE = 4
reads = txt.read(4)
@@ -1200,7 +1774,7 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(reads, self.normalized)
def test_issue1395_5(self):
- txt = io.TextIOWrapper(io.BytesIO(self.testdata), encoding="ascii")
+ txt = self.TextIOWrapper(self.BytesIO(self.testdata), encoding="ascii")
txt._CHUNK_SIZE = 4
reads = txt.read(4)
@@ -1210,12 +1784,45 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEquals(txt.read(4), "BBB\n")
def test_issue2282(self):
- buffer = io.BytesIO(self.testdata)
- txt = io.TextIOWrapper(buffer, encoding="ascii")
+ buffer = self.BytesIO(self.testdata)
+ txt = self.TextIOWrapper(buffer, encoding="ascii")
self.assertEqual(buffer.seekable(), txt.seekable())
- def check_newline_decoder_utf8(self, decoder):
+class CTextIOWrapperTest(TextIOWrapperTest):
+
+ def test_initialization(self):
+ r = self.BytesIO(b"\xc3\xa9\n\n")
+ b = self.BufferedReader(r, 1000)
+ t = self.TextIOWrapper(b)
+ self.assertRaises(TypeError, t.__init__, b, newline=42)
+ self.assertRaises(ValueError, t.read)
+ self.assertRaises(ValueError, t.__init__, b, newline='xyzzy')
+ self.assertRaises(ValueError, t.read)
+
+ def test_garbage_collection(self):
+ # C TextIOWrapper objects are collected, and collecting them flushes
+ # all data to disk.
+ # The Python version has __del__, so it ends in gc.garbage instead.
+ rawio = io.FileIO(support.TESTFN, "wb")
+ b = self.BufferedWriter(rawio)
+ t = self.TextIOWrapper(b, encoding="ascii")
+ t.write("456def")
+ t.x = t
+ wr = weakref.ref(t)
+ del t
+ gc.collect()
+ self.assert_(wr() is None, wr)
+ with open(support.TESTFN, "rb") as f:
+ self.assertEqual(f.read(), b"456def")
+
+class PyTextIOWrapperTest(TextIOWrapperTest):
+ pass
+
+
+class IncrementalNewlineDecoderTest(unittest.TestCase):
+
+ def check_newline_decoding_utf8(self, decoder):
# UTF-8 specific tests for a newline decoder
def _check_decode(b, s, **kwargs):
# We exercise getstate() / setstate() as well as decode()
@@ -1257,12 +1864,20 @@ class TextIOWrapperTest(unittest.TestCase):
_check_decode(b'\xe8\xa2\x88\r', "\u8888")
_check_decode(b'\n', "\n")
- def check_newline_decoder(self, decoder, encoding):
+ def check_newline_decoding(self, decoder, encoding):
result = []
- encoder = codecs.getincrementalencoder(encoding)()
- def _decode_bytewise(s):
- for b in encoder.encode(s):
- result.append(decoder.decode(bytes([b])))
+ if encoding is not None:
+ encoder = codecs.getincrementalencoder(encoding)()
+ def _decode_bytewise(s):
+ # Decode one byte at a time
+ for b in encoder.encode(s):
+ result.append(decoder.decode(bytes([b])))
+ else:
+ encoder = None
+ def _decode_bytewise(s):
+ # Decode one char at a time
+ for c in s:
+ result.append(decoder.decode(c))
self.assertEquals(decoder.newlines, None)
_decode_bytewise("abc\n\r")
self.assertEquals(decoder.newlines, '\n')
@@ -1275,22 +1890,34 @@ class TextIOWrapperTest(unittest.TestCase):
_decode_bytewise("abc\r")
self.assertEquals("".join(result), "abc\n\nabcabc\nabcabc")
decoder.reset()
- self.assertEquals(decoder.decode("abc".encode(encoding)), "abc")
+ input = "abc"
+ if encoder is not None:
+ encoder.reset()
+ input = encoder.encode(input)
+ self.assertEquals(decoder.decode(input), "abc")
self.assertEquals(decoder.newlines, None)
def test_newline_decoder(self):
encodings = (
- 'utf-8', 'latin-1',
+ # None meaning the IncrementalNewlineDecoder takes unicode input
+ # rather than bytes input
+ None, 'utf-8', 'latin-1',
'utf-16', 'utf-16-le', 'utf-16-be',
'utf-32', 'utf-32-le', 'utf-32-be',
)
for enc in encodings:
- decoder = codecs.getincrementaldecoder(enc)()
- decoder = io.IncrementalNewlineDecoder(decoder, translate=True)
- self.check_newline_decoder(decoder, enc)
+ decoder = enc and codecs.getincrementaldecoder(enc)()
+ decoder = self.IncrementalNewlineDecoder(decoder, translate=True)
+ self.check_newline_decoding(decoder, enc)
decoder = codecs.getincrementaldecoder("utf-8")()
- decoder = io.IncrementalNewlineDecoder(decoder, translate=True)
- self.check_newline_decoder_utf8(decoder)
+ decoder = self.IncrementalNewlineDecoder(decoder, translate=True)
+ self.check_newline_decoding_utf8(decoder)
+
+class CIncrementalNewlineDecoderTest(IncrementalNewlineDecoderTest):
+ pass
+
+class PyIncrementalNewlineDecoderTest(IncrementalNewlineDecoderTest):
+ pass
# XXX Tests for open()
@@ -1300,24 +1927,23 @@ class MiscIOTest(unittest.TestCase):
def tearDown(self):
support.unlink(support.TESTFN)
- def testImport__all__(self):
- for name in io.__all__:
- obj = getattr(io, name, None)
+ def test___all__(self):
+ for name in self.io.__all__:
+ obj = getattr(self.io, name, None)
self.assert_(obj is not None, name)
if name == "open":
continue
elif "error" in name.lower():
self.assert_(issubclass(obj, Exception), name)
else:
- self.assert_(issubclass(obj, io.IOBase))
-
+ self.assert_(issubclass(obj, self.IOBase), name)
def test_attributes(self):
- f = io.open(support.TESTFN, "wb", buffering=0)
+ f = self.open(support.TESTFN, "wb", buffering=0)
self.assertEquals(f.mode, "wb")
f.close()
- f = io.open(support.TESTFN, "U")
+ f = self.open(support.TESTFN, "U")
self.assertEquals(f.name, support.TESTFN)
self.assertEquals(f.buffer.name, support.TESTFN)
self.assertEquals(f.buffer.raw.name, support.TESTFN)
@@ -1326,12 +1952,12 @@ class MiscIOTest(unittest.TestCase):
self.assertEquals(f.buffer.raw.mode, "rb")
f.close()
- f = io.open(support.TESTFN, "w+")
+ f = self.open(support.TESTFN, "w+")
self.assertEquals(f.mode, "w+")
self.assertEquals(f.buffer.mode, "rb+") # Does it really matter?
self.assertEquals(f.buffer.raw.mode, "rb+")
- g = io.open(f.fileno(), "wb", closefd=False)
+ g = self.open(f.fileno(), "wb", closefd=False)
self.assertEquals(g.mode, "wb")
self.assertEquals(g.raw.mode, "wb")
self.assertEquals(g.name, f.fileno())
@@ -1357,13 +1983,12 @@ class MiscIOTest(unittest.TestCase):
{"mode": "w+", "buffering": 2},
{"mode": "w+b", "buffering": 0},
]:
- f = io.open(support.TESTFN, **kwargs)
+ f = self.open(support.TESTFN, **kwargs)
f.close()
self.assertRaises(ValueError, f.flush)
self.assertRaises(ValueError, f.fileno)
self.assertRaises(ValueError, f.isatty)
self.assertRaises(ValueError, f.__iter__)
- self.assertRaises(ValueError, next, f)
if hasattr(f, "peek"):
self.assertRaises(ValueError, f.peek, 1)
self.assertRaises(ValueError, f.read)
@@ -1376,16 +2001,101 @@ class MiscIOTest(unittest.TestCase):
self.assertRaises(ValueError, f.seek, 0)
self.assertRaises(ValueError, f.tell)
self.assertRaises(ValueError, f.truncate)
- self.assertRaises(ValueError, f.write, "")
+ self.assertRaises(ValueError, f.write,
+ b"" if "b" in kwargs['mode'] else "")
self.assertRaises(ValueError, f.writelines, [])
+ self.assertRaises(ValueError, next, f)
+ def test_blockingioerror(self):
+ # Various BlockingIOError issues
+ self.assertRaises(TypeError, self.BlockingIOError)
+ self.assertRaises(TypeError, self.BlockingIOError, 1)
+ self.assertRaises(TypeError, self.BlockingIOError, 1, 2, 3, 4)
+ self.assertRaises(TypeError, self.BlockingIOError, 1, "", None)
+ b = self.BlockingIOError(1, "")
+ self.assertEqual(b.characters_written, 0)
+ class C(str):
+ pass
+ c = C("")
+ b = self.BlockingIOError(1, c)
+ c.b = b
+ b.c = c
+ wr = weakref.ref(c)
+ del c, b
+ gc.collect()
+ self.assert_(wr() is None, wr)
+
+ def test_abcs(self):
+ # Test the visible base classes are ABCs.
+ self.assertTrue(isinstance(self.IOBase, abc.ABCMeta))
+ self.assertTrue(isinstance(self.RawIOBase, abc.ABCMeta))
+ self.assertTrue(isinstance(self.BufferedIOBase, abc.ABCMeta))
+ self.assertTrue(isinstance(self.TextIOBase, abc.ABCMeta))
+
+ def _check_abc_inheritance(self, abcmodule):
+ with self.open(support.TESTFN, "wb", buffering=0) as f:
+ self.assertTrue(isinstance(f, abcmodule.IOBase))
+ self.assertTrue(isinstance(f, abcmodule.RawIOBase))
+ self.assertFalse(isinstance(f, abcmodule.BufferedIOBase))
+ self.assertFalse(isinstance(f, abcmodule.TextIOBase))
+ with self.open(support.TESTFN, "wb") as f:
+ self.assertTrue(isinstance(f, abcmodule.IOBase))
+ self.assertFalse(isinstance(f, abcmodule.RawIOBase))
+ self.assertTrue(isinstance(f, abcmodule.BufferedIOBase))
+ self.assertFalse(isinstance(f, abcmodule.TextIOBase))
+ with self.open(support.TESTFN, "w") as f:
+ self.assertTrue(isinstance(f, abcmodule.IOBase))
+ self.assertFalse(isinstance(f, abcmodule.RawIOBase))
+ self.assertFalse(isinstance(f, abcmodule.BufferedIOBase))
+ self.assertTrue(isinstance(f, abcmodule.TextIOBase))
+
+ def test_abc_inheritance(self):
+ # Test implementations inherit from their respective ABCs
+ self._check_abc_inheritance(self)
+
+ def test_abc_inheritance_official(self):
+ # Test implementations inherit from the official ABCs of the
+ # baseline "io" module.
+ self._check_abc_inheritance(io)
+
+class CMiscIOTest(MiscIOTest):
+ io = io
+
+class PyMiscIOTest(MiscIOTest):
+ io = pyio
def test_main():
- support.run_unittest(IOTest, BytesIOTest, StringIOTest,
- BufferedReaderTest, BufferedWriterTest,
- BufferedRWPairTest, BufferedRandomTest,
- StatefulIncrementalDecoderTest,
- TextIOWrapperTest, MiscIOTest)
+ tests = (CIOTest, PyIOTest,
+ CBufferedReaderTest, PyBufferedReaderTest,
+ CBufferedWriterTest, PyBufferedWriterTest,
+ CBufferedRWPairTest, PyBufferedRWPairTest,
+ CBufferedRandomTest, PyBufferedRandomTest,
+ StatefulIncrementalDecoderTest,
+ CIncrementalNewlineDecoderTest, PyIncrementalNewlineDecoderTest,
+ CTextIOWrapperTest, PyTextIOWrapperTest,
+ CMiscIOTest, PyMiscIOTest,)
+
+ # Put the namespaces of the IO module we are testing and some useful mock
+ # classes in the __dict__ of each test.
+ mocks = (MockRawIO, MisbehavedRawIO, MockFileIO, CloseFailureIO,
+ MockNonBlockWriterIO)
+ all_members = io.__all__ + ["IncrementalNewlineDecoder"]
+ c_io_ns = {name : getattr(io, name) for name in all_members}
+ py_io_ns = {name : getattr(pyio, name) for name in all_members}
+ globs = globals()
+ c_io_ns.update((x.__name__, globs["C" + x.__name__]) for x in mocks)
+ py_io_ns.update((x.__name__, globs["Py" + x.__name__]) for x in mocks)
+ # Avoid turning open into a bound method.
+ py_io_ns["open"] = pyio.OpenWrapper
+ for test in tests:
+ if test.__name__.startswith("C"):
+ for name, obj in c_io_ns.items():
+ setattr(test, name, obj)
+ elif test.__name__.startswith("Py"):
+ for name, obj in py_io_ns.items():
+ setattr(test, name, obj)
+
+ support.run_unittest(*tests)
if __name__ == "__main__":
- unittest.main()
+ test_main()
diff --git a/Lib/test/test_largefile.py b/Lib/test/test_largefile.py
index 8060ea04e8..584a20623f 100644
--- a/Lib/test/test_largefile.py
+++ b/Lib/test/test_largefile.py
@@ -7,6 +7,8 @@ import sys
import unittest
from test.support import run_unittest, TESTFN, verbose, requires, \
TestSkipped, unlink
+import io # C implementation of io
+import _pyio as pyio # Python implementation of io
try:
import signal
@@ -21,7 +23,7 @@ except (ImportError, AttributeError):
size = 2500000000
-class TestCase(unittest.TestCase):
+class LargeFileTest(unittest.TestCase):
"""Test that each file function works as expected for a large
(i.e. > 2GB, do we have to check > 4GB) files.
@@ -34,7 +36,7 @@ class TestCase(unittest.TestCase):
def test_seek(self):
if verbose:
print('create large file via seek (may be sparse file) ...')
- with open(TESTFN, 'wb') as f:
+ with self.open(TESTFN, 'wb') as f:
f.write(b'z')
f.seek(0)
f.seek(size)
@@ -52,7 +54,7 @@ class TestCase(unittest.TestCase):
def test_seek_read(self):
if verbose:
print('play around with seek() and read() with the built largefile')
- with open(TESTFN, 'rb') as f:
+ with self.open(TESTFN, 'rb') as f:
self.assertEqual(f.tell(), 0)
self.assertEqual(f.read(1), b'z')
self.assertEqual(f.tell(), 1)
@@ -85,7 +87,7 @@ class TestCase(unittest.TestCase):
def test_lseek(self):
if verbose:
print('play around with os.lseek() with the built largefile')
- with open(TESTFN, 'rb') as f:
+ with self.open(TESTFN, 'rb') as f:
self.assertEqual(os.lseek(f.fileno(), 0, 0), 0)
self.assertEqual(os.lseek(f.fileno(), 42, 0), 42)
self.assertEqual(os.lseek(f.fileno(), 42, 1), 84)
@@ -100,7 +102,7 @@ class TestCase(unittest.TestCase):
def test_truncate(self):
if verbose:
print('try truncate')
- with open(TESTFN, 'r+b') as f:
+ with self.open(TESTFN, 'r+b') as f:
# this is already decided before start running the test suite
# but we do it anyway for extra protection
if not hasattr(f, 'truncate'):
@@ -143,7 +145,7 @@ def test_main():
# Only run if the current filesystem supports large files.
# (Skip this test on Windows, since we now always support
# large files.)
- f = open(TESTFN, 'wb')
+ f = open(TESTFN, 'wb', buffering=0)
try:
# 2**31 == 2147483648
f.seek(2147483649)
@@ -158,14 +160,19 @@ def test_main():
else:
f.close()
suite = unittest.TestSuite()
- suite.addTest(TestCase('test_seek'))
- suite.addTest(TestCase('test_osstat'))
- suite.addTest(TestCase('test_seek_read'))
- suite.addTest(TestCase('test_lseek'))
- with open(TESTFN, 'w') as f:
- if hasattr(f, 'truncate'):
- suite.addTest(TestCase('test_truncate'))
- unlink(TESTFN)
+ for _open, prefix in [(io.open, 'C'), (pyio.open, 'Py')]:
+ class TestCase(LargeFileTest):
+ pass
+ TestCase.open = staticmethod(_open)
+ TestCase.__name__ = prefix + LargeFileTest.__name__
+ suite.addTest(TestCase('test_seek'))
+ suite.addTest(TestCase('test_osstat'))
+ suite.addTest(TestCase('test_seek_read'))
+ suite.addTest(TestCase('test_lseek'))
+ with _open(TESTFN, 'wb') as f:
+ if hasattr(f, 'truncate'):
+ suite.addTest(TestCase('test_truncate'))
+ unlink(TESTFN)
try:
run_unittest(suite)
finally:
diff --git a/Lib/test/test_memoryio.py b/Lib/test/test_memoryio.py
index d1745bcd3f..b3fc0422d7 100644
--- a/Lib/test/test_memoryio.py
+++ b/Lib/test/test_memoryio.py
@@ -7,13 +7,52 @@ import unittest
from test import support
import io
+import _pyio as pyio
import sys
-try:
- import _bytesio, _stringio
- has_c_implementation = True
-except ImportError:
- has_c_implementation = False
+class MemorySeekTestMixin:
+
+ def testInit(self):
+ buf = self.buftype("1234567890")
+ bytesIo = self.ioclass(buf)
+
+ def testRead(self):
+ buf = self.buftype("1234567890")
+ bytesIo = self.ioclass(buf)
+
+ self.assertEquals(buf[:1], bytesIo.read(1))
+ self.assertEquals(buf[1:5], bytesIo.read(4))
+ self.assertEquals(buf[5:], bytesIo.read(900))
+ self.assertEquals(self.EOF, bytesIo.read())
+
+ def testReadNoArgs(self):
+ buf = self.buftype("1234567890")
+ bytesIo = self.ioclass(buf)
+
+ self.assertEquals(buf, bytesIo.read())
+ self.assertEquals(self.EOF, bytesIo.read())
+
+ def testSeek(self):
+ buf = self.buftype("1234567890")
+ bytesIo = self.ioclass(buf)
+
+ bytesIo.read(5)
+ bytesIo.seek(0)
+ self.assertEquals(buf, bytesIo.read())
+
+ bytesIo.seek(3)
+ self.assertEquals(buf[3:], bytesIo.read())
+ self.assertRaises(TypeError, bytesIo.seek, 0.0)
+
+ def testTell(self):
+ buf = self.buftype("1234567890")
+ bytesIo = self.ioclass(buf)
+
+ self.assertEquals(0, bytesIo.tell())
+ bytesIo.seek(5)
+ self.assertEquals(5, bytesIo.tell())
+ bytesIo.seek(10000)
+ self.assertEquals(10000, bytesIo.tell())
class MemoryTestMixin:
@@ -148,7 +187,7 @@ class MemoryTestMixin:
self.assertEqual(memio.readline(), self.EOF)
memio.seek(0)
self.assertEqual(type(memio.readline()), type(buf))
- self.assertEqual(memio.readline(None), buf)
+ self.assertEqual(memio.readline(), buf)
self.assertRaises(TypeError, memio.readline, '')
memio.close()
self.assertRaises(ValueError, memio.readline)
@@ -296,11 +335,11 @@ class MemoryTestMixin:
self.assertEqual(test2(), buf)
-class PyBytesIOTest(MemoryTestMixin, unittest.TestCase):
+class PyBytesIOTest(MemoryTestMixin, MemorySeekTestMixin, unittest.TestCase):
@staticmethod
def buftype(s):
return s.encode("ascii")
- ioclass = io._BytesIO
+ ioclass = pyio.BytesIO
EOF = b""
def test_read1(self):
@@ -371,11 +410,32 @@ class PyBytesIOTest(MemoryTestMixin, unittest.TestCase):
self.assertEqual(memio.getvalue(), buf)
-class PyStringIOTest(MemoryTestMixin, unittest.TestCase):
+class PyStringIOTest(MemoryTestMixin, MemorySeekTestMixin, unittest.TestCase):
buftype = str
- ioclass = io._StringIO
+ ioclass = pyio.StringIO
EOF = ""
+ # TextIO-specific behaviour.
+
+ def test_newlines_property(self):
+ memio = self.ioclass(newline=None)
+ # The C StringIO decodes newlines in write() calls, but the Python
+ # implementation only does when reading. This function forces them to
+ # be decoded for testing.
+ def force_decode():
+ memio.seek(0)
+ memio.read()
+ self.assertEqual(memio.newlines, None)
+ memio.write("a\n")
+ force_decode()
+ self.assertEqual(memio.newlines, "\n")
+ memio.write("b\r\n")
+ force_decode()
+ self.assertEqual(memio.newlines, ("\n", "\r\n"))
+ memio.write("c\rd")
+ force_decode()
+ self.assertEqual(memio.newlines, ("\r", "\n", "\r\n"))
+
def test_relative_seek(self):
memio = self.ioclass()
@@ -386,32 +446,99 @@ class PyStringIOTest(MemoryTestMixin, unittest.TestCase):
self.assertRaises(IOError, memio.seek, 1, 1)
self.assertRaises(IOError, memio.seek, 1, 2)
+ def test_textio_properties(self):
+ memio = self.ioclass()
+
+ # These are just dummy values but we nevertheless check them for fear
+ # of unexpected breakage.
+ self.assertEqual(memio.encoding, "utf-8")
+ self.assertEqual(memio.errors, "strict")
+ self.assertEqual(memio.line_buffering, False)
+
+ def test_newline_none(self):
+ # newline=None
+ memio = self.ioclass("a\nb\r\nc\rd", newline=None)
+ self.assertEqual(list(memio), ["a\n", "b\n", "c\n", "d"])
+ memio.seek(0)
+ self.assertEqual(memio.read(1), "a")
+ self.assertEqual(memio.read(2), "\nb")
+ self.assertEqual(memio.read(2), "\nc")
+ self.assertEqual(memio.read(1), "\n")
+ memio = self.ioclass(newline=None)
+ self.assertEqual(2, memio.write("a\n"))
+ self.assertEqual(3, memio.write("b\r\n"))
+ self.assertEqual(3, memio.write("c\rd"))
+ memio.seek(0)
+ self.assertEqual(memio.read(), "a\nb\nc\nd")
+ memio = self.ioclass("a\r\nb", newline=None)
+ self.assertEqual(memio.read(3), "a\nb")
+
+ def test_newline_empty(self):
+ # newline=""
+ memio = self.ioclass("a\nb\r\nc\rd", newline="")
+ self.assertEqual(list(memio), ["a\n", "b\r\n", "c\r", "d"])
+ memio.seek(0)
+ self.assertEqual(memio.read(4), "a\nb\r")
+ self.assertEqual(memio.read(2), "\nc")
+ self.assertEqual(memio.read(1), "\r")
+ memio = self.ioclass(newline="")
+ self.assertEqual(2, memio.write("a\n"))
+ self.assertEqual(2, memio.write("b\r"))
+ self.assertEqual(2, memio.write("\nc"))
+ self.assertEqual(2, memio.write("\rd"))
+ memio.seek(0)
+ self.assertEqual(list(memio), ["a\n", "b\r\n", "c\r", "d"])
+
+ def test_newline_lf(self):
+ # newline="\n"
+ memio = self.ioclass("a\nb\r\nc\rd")
+ self.assertEqual(list(memio), ["a\n", "b\r\n", "c\rd"])
+
+ def test_newline_cr(self):
+ # newline="\r"
+ memio = self.ioclass("a\nb\r\nc\rd", newline="\r")
+ memio.seek(0)
+ self.assertEqual(memio.read(), "a\rb\r\rc\rd")
+ memio.seek(0)
+ self.assertEqual(list(memio), ["a\r", "b\r", "\r", "c\r", "d"])
+
+ def test_newline_crlf(self):
+ # newline="\r\n"
+ memio = self.ioclass("a\nb\r\nc\rd", newline="\r\n")
+ memio.seek(0)
+ self.assertEqual(memio.read(), "a\r\nb\r\r\nc\rd")
+ memio.seek(0)
+ self.assertEqual(list(memio), ["a\r\n", "b\r\r\n", "c\rd"])
+
+ def test_issue5265(self):
+ # StringIO can duplicate newlines in universal newlines mode
+ memio = self.ioclass("a\r\nb\r\n", newline=None)
+ self.assertEqual(memio.read(5), "a\nb\n")
+
+
+class CBytesIOTest(PyBytesIOTest):
+ ioclass = io.BytesIO
+
+class CStringIOTest(PyStringIOTest):
+ ioclass = io.StringIO
+
# XXX: For the Python version of io.StringIO, this is highly
# dependent on the encoding used for the underlying buffer.
- # def test_widechar(self):
- # buf = self.buftype("\U0002030a\U00020347")
- # memio = self.ioclass(buf)
- #
- # self.assertEqual(memio.getvalue(), buf)
- # self.assertEqual(memio.write(buf), len(buf))
- # self.assertEqual(memio.tell(), len(buf))
- # self.assertEqual(memio.getvalue(), buf)
- # self.assertEqual(memio.write(buf), len(buf))
- # self.assertEqual(memio.tell(), len(buf) * 2)
- # self.assertEqual(memio.getvalue(), buf + buf)
-
-if has_c_implementation:
- class CBytesIOTest(PyBytesIOTest):
- ioclass = io.BytesIO
-
- class CStringIOTest(PyStringIOTest):
- ioclass = io.StringIO
+ def test_widechar(self):
+ buf = self.buftype("\U0002030a\U00020347")
+ memio = self.ioclass(buf)
+
+ self.assertEqual(memio.getvalue(), buf)
+ self.assertEqual(memio.write(buf), len(buf))
+ self.assertEqual(memio.tell(), len(buf))
+ self.assertEqual(memio.getvalue(), buf)
+ self.assertEqual(memio.write(buf), len(buf))
+ self.assertEqual(memio.tell(), len(buf) * 2)
+ self.assertEqual(memio.getvalue(), buf + buf)
def test_main():
- tests = [PyBytesIOTest, PyStringIOTest]
- if has_c_implementation:
- tests.extend([CBytesIOTest, CStringIOTest])
+ tests = [PyBytesIOTest, PyStringIOTest, CBytesIOTest, CStringIOTest]
support.run_unittest(*tests)
if __name__ == '__main__':
diff --git a/Lib/test/test_univnewlines.py b/Lib/test/test_univnewlines.py
index c4e4a3fbbb..a6b99091ff 100644
--- a/Lib/test/test_univnewlines.py
+++ b/Lib/test/test_univnewlines.py
@@ -1,4 +1,6 @@
# Tests universal newline support for both reading and parsing files.
+import io
+import _pyio as pyio
import unittest
import os
import sys
@@ -35,7 +37,7 @@ class TestGenericUnivNewlines(unittest.TestCase):
WRITEMODE = 'wb'
def setUp(self):
- fp = open(support.TESTFN, self.WRITEMODE)
+ fp = self.open(support.TESTFN, self.WRITEMODE)
data = self.DATA
if "b" in self.WRITEMODE:
data = data.encode("ascii")
@@ -49,19 +51,19 @@ class TestGenericUnivNewlines(unittest.TestCase):
pass
def test_read(self):
- fp = open(support.TESTFN, self.READMODE)
+ fp = self.open(support.TESTFN, self.READMODE)
data = fp.read()
self.assertEqual(data, DATA_LF)
self.assertEqual(repr(fp.newlines), repr(self.NEWLINE))
def test_readlines(self):
- fp = open(support.TESTFN, self.READMODE)
+ fp = self.open(support.TESTFN, self.READMODE)
data = fp.readlines()
self.assertEqual(data, DATA_SPLIT)
self.assertEqual(repr(fp.newlines), repr(self.NEWLINE))
def test_readline(self):
- fp = open(support.TESTFN, self.READMODE)
+ fp = self.open(support.TESTFN, self.READMODE)
data = []
d = fp.readline()
while d:
@@ -71,7 +73,7 @@ class TestGenericUnivNewlines(unittest.TestCase):
self.assertEqual(repr(fp.newlines), repr(self.NEWLINE))
def test_seek(self):
- fp = open(support.TESTFN, self.READMODE)
+ fp = self.open(support.TESTFN, self.READMODE)
fp.readline()
pos = fp.tell()
data = fp.readlines()
@@ -94,7 +96,7 @@ class TestCRLFNewlines(TestGenericUnivNewlines):
DATA = DATA_CRLF
def test_tell(self):
- fp = open(support.TESTFN, self.READMODE)
+ fp = self.open(support.TESTFN, self.READMODE)
self.assertEqual(repr(fp.newlines), repr(None))
data = fp.readline()
pos = fp.tell()
@@ -106,12 +108,22 @@ class TestMixedNewlines(TestGenericUnivNewlines):
def test_main():
- support.run_unittest(
- TestCRNewlines,
- TestLFNewlines,
- TestCRLFNewlines,
- TestMixedNewlines
- )
+ base_tests = (TestCRNewlines,
+ TestLFNewlines,
+ TestCRLFNewlines,
+ TestMixedNewlines)
+ tests = []
+ # Test the C and Python implementations.
+ for test in base_tests:
+ class CTest(test):
+ open = io.open
+ CTest.__name__ = "C" + test.__name__
+ class PyTest(test):
+ open = staticmethod(pyio.open)
+ PyTest.__name__ = "Py" + test.__name__
+ tests.append(CTest)
+ tests.append(PyTest)
+ support.run_unittest(*tests)
if __name__ == '__main__':
test_main()
diff --git a/Lib/test/test_uu.py b/Lib/test/test_uu.py
index d2b6e7379c..a54f2c1df9 100644
--- a/Lib/test/test_uu.py
+++ b/Lib/test/test_uu.py
@@ -32,6 +32,8 @@ class FakeIO(io.TextIOWrapper):
encoding=encoding,
errors=errors,
newline=newline)
+ self._encoding = encoding
+ self._errors = errors
if initial_value:
if not isinstance(initial_value, str):
initial_value = str(initial_value)
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