Make test_base64 pass.

Change binascii.Error to derive from ValueError
and raise binascii.Error everywhere where values are bad
(why on earth did the old code use TypeError?!?).

1 files changed, 114 insertions, 110 deletions

diff --git a/Lib/test/test_base64.py b/Lib/test/test_base64.py
index ff2c3700d3..2f592f1771 100644
--- a/Lib/test/test_base64.py
+++ b/Lib/test/test_base64.py
@@ -1,37 +1,38 @@
 import unittest
 from test import test_support
 import base64
+import binascii
 
 
 
 class LegacyBase64TestCase(unittest.TestCase):
     def test_encodestring(self):
         eq = self.assertEqual
-        eq(base64.encodestring("www.python.org"), "d3d3LnB5dGhvbi5vcmc=\n")
-        eq(base64.encodestring("a"), "YQ==\n")
-        eq(base64.encodestring("ab"), "YWI=\n")
-        eq(base64.encodestring("abc"), "YWJj\n")
-        eq(base64.encodestring(""), "")
-        eq(base64.encodestring("abcdefghijklmnopqrstuvwxyz"
-                               "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                               "0123456789!@#0^&*();:<>,. []{}"),
-           "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
-           "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
-           "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")
+        eq(base64.encodestring(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=\n")
+        eq(base64.encodestring(b"a"), b"YQ==\n")
+        eq(base64.encodestring(b"ab"), b"YWI=\n")
+        eq(base64.encodestring(b"abc"), b"YWJj\n")
+        eq(base64.encodestring(b""), b"")
+        eq(base64.encodestring(b"abcdefghijklmnopqrstuvwxyz"
+                               b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                               b"0123456789!@#0^&*();:<>,. []{}"),
+           b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
+           b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
+           b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")
 
     def test_decodestring(self):
         eq = self.assertEqual
-        eq(base64.decodestring("d3d3LnB5dGhvbi5vcmc=\n"), "www.python.org")
-        eq(base64.decodestring("YQ==\n"), "a")
-        eq(base64.decodestring("YWI=\n"), "ab")
-        eq(base64.decodestring("YWJj\n"), "abc")
-        eq(base64.decodestring("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
-                               "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
-                               "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),
-           "abcdefghijklmnopqrstuvwxyz"
-           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-           "0123456789!@#0^&*();:<>,. []{}")
-        eq(base64.decodestring(''), '')
+        eq(base64.decodestring(b"d3d3LnB5dGhvbi5vcmc=\n"), b"www.python.org")
+        eq(base64.decodestring(b"YQ==\n"), b"a")
+        eq(base64.decodestring(b"YWI=\n"), b"ab")
+        eq(base64.decodestring(b"YWJj\n"), b"abc")
+        eq(base64.decodestring(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
+                               b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
+                               b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),
+           b"abcdefghijklmnopqrstuvwxyz"
+           b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+           b"0123456789!@#0^&*();:<>,. []{}")
+        eq(base64.decodestring(b''), b'')
 
     def test_encode(self):
         eq = self.assertEqual
@@ -59,127 +60,130 @@ class BaseXYTestCase(unittest.TestCase):
     def test_b64encode(self):
         eq = self.assertEqual
         # Test default alphabet
-        eq(base64.b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")
-        eq(base64.b64encode('\x00'), 'AA==')
-        eq(base64.b64encode("a"), "YQ==")
-        eq(base64.b64encode("ab"), "YWI=")
-        eq(base64.b64encode("abc"), "YWJj")
-        eq(base64.b64encode(""), "")
-        eq(base64.b64encode("abcdefghijklmnopqrstuvwxyz"
-                            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                            "0123456789!@#0^&*();:<>,. []{}"),
-           "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
-           "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
-           "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
+        eq(base64.b64encode(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=")
+        eq(base64.b64encode(b'\x00'), b'AA==')
+        eq(base64.b64encode(b"a"), b"YQ==")
+        eq(base64.b64encode(b"ab"), b"YWI=")
+        eq(base64.b64encode(b"abc"), b"YWJj")
+        eq(base64.b64encode(b""), b"")
+        eq(base64.b64encode(b"abcdefghijklmnopqrstuvwxyz"
+                            b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                            b"0123456789!@#0^&*();:<>,. []{}"),
+           b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
+           b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
+           b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
         # Test with arbitrary alternative characters
-        eq(base64.b64encode('\xd3V\xbeo\xf7\x1d', altchars='*$'), '01a*b$cd')
+        eq(base64.b64encode(b'\xd3V\xbeo\xf7\x1d', altchars='*$'), b'01a*b$cd')
         # Test standard alphabet
-        eq(base64.standard_b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")
-        eq(base64.standard_b64encode("a"), "YQ==")
-        eq(base64.standard_b64encode("ab"), "YWI=")
-        eq(base64.standard_b64encode("abc"), "YWJj")
-        eq(base64.standard_b64encode(""), "")
-        eq(base64.standard_b64encode("abcdefghijklmnopqrstuvwxyz"
-                                     "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                                     "0123456789!@#0^&*();:<>,. []{}"),
-           "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
-           "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
-           "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
+        eq(base64.standard_b64encode(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=")
+        eq(base64.standard_b64encode(b"a"), b"YQ==")
+        eq(base64.standard_b64encode(b"ab"), b"YWI=")
+        eq(base64.standard_b64encode(b"abc"), b"YWJj")
+        eq(base64.standard_b64encode(b""), b"")
+        eq(base64.standard_b64encode(b"abcdefghijklmnopqrstuvwxyz"
+                                     b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                                     b"0123456789!@#0^&*();:<>,. []{}"),
+           b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
+           b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
+           b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
         # Test with 'URL safe' alternative characters
-        eq(base64.urlsafe_b64encode('\xd3V\xbeo\xf7\x1d'), '01a-b_cd')
+        eq(base64.urlsafe_b64encode(b'\xd3V\xbeo\xf7\x1d'), b'01a-b_cd')
 
     def test_b64decode(self):
         eq = self.assertEqual
-        eq(base64.b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")
-        eq(base64.b64decode('AA=='), '\x00')
-        eq(base64.b64decode("YQ=="), "a")
-        eq(base64.b64decode("YWI="), "ab")
-        eq(base64.b64decode("YWJj"), "abc")
-        eq(base64.b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
-                            "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
-                            "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
-           "abcdefghijklmnopqrstuvwxyz"
-           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-           "0123456789!@#0^&*();:<>,. []{}")
-        eq(base64.b64decode(''), '')
+        eq(base64.b64decode(b"d3d3LnB5dGhvbi5vcmc="), b"www.python.org")
+        eq(base64.b64decode(b'AA=='), b'\x00')
+        eq(base64.b64decode(b"YQ=="), b"a")
+        eq(base64.b64decode(b"YWI="), b"ab")
+        eq(base64.b64decode(b"YWJj"), b"abc")
+        eq(base64.b64decode(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
+                            b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
+                            b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
+           b"abcdefghijklmnopqrstuvwxyz"
+           b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+           b"0123456789!@#0^&*();:<>,. []{}")
+        eq(base64.b64decode(b''), b'')
         # Test with arbitrary alternative characters
-        eq(base64.b64decode('01a*b$cd', altchars='*$'), '\xd3V\xbeo\xf7\x1d')
+        eq(base64.b64decode(b'01a*b$cd', altchars='*$'), b'\xd3V\xbeo\xf7\x1d')
         # Test standard alphabet
-        eq(base64.standard_b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")
-        eq(base64.standard_b64decode("YQ=="), "a")
-        eq(base64.standard_b64decode("YWI="), "ab")
-        eq(base64.standard_b64decode("YWJj"), "abc")
-        eq(base64.standard_b64decode(""), "")
-        eq(base64.standard_b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
-                                     "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
-                                     "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
-           "abcdefghijklmnopqrstuvwxyz"
-           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-           "0123456789!@#0^&*();:<>,. []{}")
+        eq(base64.standard_b64decode(b"d3d3LnB5dGhvbi5vcmc="), b"www.python.org")
+        eq(base64.standard_b64decode(b"YQ=="), b"a")
+        eq(base64.standard_b64decode(b"YWI="), b"ab")
+        eq(base64.standard_b64decode(b"YWJj"), b"abc")
+        eq(base64.standard_b64decode(b""), b"")
+        eq(base64.standard_b64decode(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
+                                     b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
+                                     b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
+           b"abcdefghijklmnopqrstuvwxyz"
+           b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+           b"0123456789!@#0^&*();:<>,. []{}")
         # Test with 'URL safe' alternative characters
-        eq(base64.urlsafe_b64decode('01a-b_cd'), '\xd3V\xbeo\xf7\x1d')
+        eq(base64.urlsafe_b64decode(b'01a-b_cd'), b'\xd3V\xbeo\xf7\x1d')
 
     def test_b64decode_error(self):
-        self.assertRaises(TypeError, base64.b64decode, 'abc')
+        self.assertRaises(binascii.Error, base64.b64decode, b'abc')
 
     def test_b32encode(self):
         eq = self.assertEqual
-        eq(base64.b32encode(''), '')
-        eq(base64.b32encode('\x00'), 'AA======')
-        eq(base64.b32encode('a'), 'ME======')
-        eq(base64.b32encode('ab'), 'MFRA====')
-        eq(base64.b32encode('abc'), 'MFRGG===')
-        eq(base64.b32encode('abcd'), 'MFRGGZA=')
-        eq(base64.b32encode('abcde'), 'MFRGGZDF')
+        eq(base64.b32encode(b''), b'')
+        eq(base64.b32encode(b'\x00'), b'AA======')
+        eq(base64.b32encode(b'a'), b'ME======')
+        eq(base64.b32encode(b'ab'), b'MFRA====')
+        eq(base64.b32encode(b'abc'), b'MFRGG===')
+        eq(base64.b32encode(b'abcd'), b'MFRGGZA=')
+        eq(base64.b32encode(b'abcde'), b'MFRGGZDF')
 
     def test_b32decode(self):
         eq = self.assertEqual
-        eq(base64.b32decode(''), '')
-        eq(base64.b32decode('AA======'), '\x00')
-        eq(base64.b32decode('ME======'), 'a')
-        eq(base64.b32decode('MFRA===='), 'ab')
-        eq(base64.b32decode('MFRGG==='), 'abc')
-        eq(base64.b32decode('MFRGGZA='), 'abcd')
-        eq(base64.b32decode('MFRGGZDF'), 'abcde')
+        eq(base64.b32decode(b''), b'')
+        eq(base64.b32decode(b'AA======'), b'\x00')
+        eq(base64.b32decode(b'ME======'), b'a')
+        eq(base64.b32decode(b'MFRA===='), b'ab')
+        eq(base64.b32decode(b'MFRGG==='), b'abc')
+        eq(base64.b32decode(b'MFRGGZA='), b'abcd')
+        eq(base64.b32decode(b'MFRGGZDF'), b'abcde')
 
     def test_b32decode_casefold(self):
         eq = self.assertEqual
-        eq(base64.b32decode('', True), '')
-        eq(base64.b32decode('ME======', True), 'a')
-        eq(base64.b32decode('MFRA====', True), 'ab')
-        eq(base64.b32decode('MFRGG===', True), 'abc')
-        eq(base64.b32decode('MFRGGZA=', True), 'abcd')
-        eq(base64.b32decode('MFRGGZDF', True), 'abcde')
+        eq(base64.b32decode(b'', True), b'')
+        eq(base64.b32decode(b'ME======', True), b'a')
+        eq(base64.b32decode(b'MFRA====', True), b'ab')
+        eq(base64.b32decode(b'MFRGG===', True), b'abc')
+        eq(base64.b32decode(b'MFRGGZA=', True), b'abcd')
+        eq(base64.b32decode(b'MFRGGZDF', True), b'abcde')
         # Lower cases
-        eq(base64.b32decode('me======', True), 'a')
-        eq(base64.b32decode('mfra====', True), 'ab')
-        eq(base64.b32decode('mfrgg===', True), 'abc')
-        eq(base64.b32decode('mfrggza=', True), 'abcd')
-        eq(base64.b32decode('mfrggzdf', True), 'abcde')
+        eq(base64.b32decode(b'me======', True), b'a')
+        eq(base64.b32decode(b'mfra====', True), b'ab')
+        eq(base64.b32decode(b'mfrgg===', True), b'abc')
+        eq(base64.b32decode(b'mfrggza=', True), b'abcd')
+        eq(base64.b32decode(b'mfrggzdf', True), b'abcde')
         # Expected exceptions
-        self.assertRaises(TypeError, base64.b32decode, 'me======')
+        self.assertRaises(TypeError, base64.b32decode, b'me======')
         # Mapping zero and one
-        eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
-        eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
-        eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')
+        eq(base64.b32decode(b'MLO23456'), b'b\xdd\xad\xf3\xbe')
+        eq(base64.b32decode(b'M1023456', map01=b'L'), b'b\xdd\xad\xf3\xbe')
+        eq(base64.b32decode(b'M1023456', map01=b'I'), b'b\x1d\xad\xf3\xbe')
 
     def test_b32decode_error(self):
-        self.assertRaises(TypeError, base64.b32decode, 'abc')
-        self.assertRaises(TypeError, base64.b32decode, 'ABCDEF==')
+        self.assertRaises(binascii.Error, base64.b32decode, b'abc')
+        self.assertRaises(binascii.Error, base64.b32decode, b'ABCDEF==')
 
     def test_b16encode(self):
         eq = self.assertEqual
-        eq(base64.b16encode('\x01\x02\xab\xcd\xef'), '0102ABCDEF')
-        eq(base64.b16encode('\x00'), '00')
+        eq(base64.b16encode(b'\x01\x02\xab\xcd\xef'), b'0102ABCDEF')
+        eq(base64.b16encode(b'\x00'), b'00')
 
     def test_b16decode(self):
         eq = self.assertEqual
-        eq(base64.b16decode('0102ABCDEF'), '\x01\x02\xab\xcd\xef')
-        eq(base64.b16decode('00'), '\x00')
+        eq(base64.b16decode(b'0102ABCDEF'), b'\x01\x02\xab\xcd\xef')
+        eq(base64.b16decode(b'00'), b'\x00')
         # Lower case is not allowed without a flag
-        self.assertRaises(TypeError, base64.b16decode, '0102abcdef')
+        self.assertRaises(binascii.Error, base64.b16decode, b'0102abcdef')
         # Case fold
-        eq(base64.b16decode('0102abcdef', True), '\x01\x02\xab\xcd\xef')
+        eq(base64.b16decode(b'0102abcdef', True), b'\x01\x02\xab\xcd\xef')
+
+    def test_ErrorHeritage(self):
+        self.assert_(issubclass(binascii.Error, ValueError))