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# fixtures: Fixtures with cleanups for testing and convenience.
#
# Copyright (c) 2012, Robert Collins <robertc@robertcollins.net>
#
# Licensed under either the Apache License, Version 2.0 or the BSD 3-clause
# license at the users choice. A copy of both licenses are available in the
# project source as Apache-2.0 and BSD. You may not use this file except in
# compliance with one of these two licences.
#
# Unless required by applicable law or agreed to in writing, software
# distributed under these licenses is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# license you chose for the specific language governing permissions and
# limitations under that license.
import os
from testtools import TestCase
from testtools.matchers import (
DirContains,
DirExists,
FileContains,
)
from fixtures import (
TempDir,
)
from fixtures._fixtures.tempdir import (
create_normal_shape,
normalize_entry,
normalize_shape,
)
class TestFileTree(TestCase):
def test_out_of_order(self):
# If a file or a subdirectory is listed before its parent directory,
# that doesn't matter. We'll create the directory first.
fixture = TempDir()
with fixture:
fixture.make_tree(['a/b/', 'a/'])
path = fixture.path
self.assertThat(path, DirContains(['a']))
self.assertThat(os.path.join(path, 'a'), DirContains(['b']))
self.assertThat(os.path.join(path, 'a', 'b'), DirExists())
def test_not_even_creating_parents(self):
fixture = TempDir()
with fixture:
fixture.make_tree(['a/b/foo.txt', 'c/d/e/'])
path = fixture.path
self.assertThat(
os.path.join(path, 'a', 'b', 'foo.txt'),
FileContains("The file 'a/b/foo.txt'."))
self.assertThat(os.path.join(path, 'c', 'd', 'e'), DirExists())
class TestNormalizeEntry(TestCase):
def test_file_as_tuple(self):
# A tuple of filenames and contents is already normalized.
entry = normalize_entry(('foo', 'foo contents'))
self.assertEqual(('foo', 'foo contents'), entry)
def test_directories_as_tuples(self):
# A tuple of directory name and None is already normalized.
directory = normalize_entry(('foo/', None))
self.assertEqual(('foo/', None), directory)
def test_directories_as_singletons(self):
# A singleton tuple of directory name is normalized to a 2-tuple of
# the directory name and None.
directory = normalize_entry(('foo/',))
self.assertEqual(('foo/', None), directory)
def test_directories_as_strings(self):
# If directories are just given as strings, then they are normalized
# to tuples of directory names and None.
directory = normalize_entry('foo/')
self.assertEqual(('foo/', None), directory)
def test_directories_with_content(self):
# If we're given a directory with content, we raise an error, since
# it's ambiguous and we don't want to guess.
bad_entry = ('dir/', "stuff")
e = self.assertRaises(ValueError, normalize_entry, bad_entry)
self.assertEqual(
"Directories must end with '/' and have no content, files do not "
"end with '/' and must have content, got %r" % (bad_entry,),
str(e))
def test_filenames_as_strings(self):
# If file names are just given as strings, then they are normalized to
# tuples of filenames and made-up contents.
entry = normalize_entry('foo')
self.assertEqual(('foo', "The file 'foo'."), entry)
def test_filenames_as_singletons(self):
# A singleton tuple of a filename is normalized to a 2-tuple of
# the file name and made-up contents.
entry = normalize_entry(('foo',))
self.assertEqual(('foo', "The file 'foo'."), entry)
def test_filenames_without_content(self):
# If we're given a filename without content, we raise an error, since
# it's ambiguous and we don't want to guess.
bad_entry = ('filename', None)
e = self.assertRaises(ValueError, normalize_entry, bad_entry)
self.assertEqual(
"Directories must end with '/' and have no content, files do not "
"end with '/' and must have content, got %r" % (bad_entry,),
str(e))
def test_too_long_tuple(self):
bad_entry = ('foo', 'bar', 'baz')
e = self.assertRaises(ValueError, normalize_entry, bad_entry)
self.assertEqual(
"Invalid file or directory description: %r" % (bad_entry,),
str(e))
class TestNormalizeShape(TestCase):
def test_empty(self):
# The normal form of an empty list is the empty list.
empty = normalize_shape([])
self.assertEqual([], empty)
def test_sorts_entries(self):
# The normal form a list of entries is the sorted list of normal
# entries.
entries = normalize_shape(['a/b/', 'a/'])
self.assertEqual([('a/', None), ('a/b/', None)], entries)
class TestCreateNormalShape(TestCase):
def test_empty(self):
tempdir = self.useFixture(TempDir()).path
create_normal_shape(tempdir, [])
self.assertThat(tempdir, DirContains([]))
def test_creates_files(self):
# When given a list of file specifications, it creates those files
# underneath the temporary directory.
path = self.useFixture(TempDir()).path
create_normal_shape(path, [('a', 'foo'), ('b', 'bar')])
self.assertThat(path, DirContains(['a', 'b']))
self.assertThat(os.path.join(path, 'a'), FileContains('foo'))
self.assertThat(os.path.join(path, 'b'), FileContains('bar'))
def test_creates_directories(self):
# When given directory specifications, it creates those directories.
path = self.useFixture(TempDir()).path
create_normal_shape(path, [('a/', None), ('b/', None)])
self.assertThat(path, DirContains(['a', 'b']))
self.assertThat(os.path.join(path, 'a'), DirExists())
self.assertThat(os.path.join(path, 'b'), DirExists())
def test_creates_parent_directories(self):
# If the parents of a file or directory don't exist, they get created
# too.
path = self.useFixture(TempDir()).path
create_normal_shape(path, [('a/b/', None), ('c/d.txt', 'text')])
self.assertThat(path, DirContains(['a', 'c']))
self.assertThat(os.path.join(path, 'a'), DirContains('b'))
self.assertThat(os.path.join(path, 'a', 'b'), DirExists())
self.assertThat(os.path.join(path, 'c'), DirExists())
self.assertThat(os.path.join(path, 'c', 'd.txt'), FileContains('text'))
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