Port test_binascii.py to PyUnit and enhance tests.
Code coverage for binascii.c is at 92%.
From SF patch #736962.
diff --git a/Lib/test/test_binascii.py b/Lib/test/test_binascii.py
index 2764c3c..c252062 100755
--- a/Lib/test/test_binascii.py
+++ b/Lib/test/test_binascii.py
@@ -1,129 +1,155 @@
"""Test the binascii C module."""
-from test.test_support import verify, verbose, have_unicode
+from test import test_support
+import unittest
import binascii
-# Show module doc string
-print binascii.__doc__
+class BinASCIITest(unittest.TestCase):
-# Show module exceptions
-print binascii.Error
-print binascii.Incomplete
-
-# Check presence and display doc strings of all functions
-funcs = []
-for suffix in "base64", "hqx", "uu":
- prefixes = ["a2b_", "b2a_"]
- if suffix == "hqx":
- prefixes.extend(["crc_", "rlecode_", "rledecode_"])
- for prefix in prefixes:
- name = prefix + suffix
- funcs.append(getattr(binascii, name))
-for func in funcs:
- print "%-15s: %s" % (func.__name__, func.__doc__)
-
-# Create binary test data
-testdata = "The quick brown fox jumps over the lazy dog.\r\n"
-for i in range(256):
+ # Create binary test data
+ data = "The quick brown fox jumps over the lazy dog.\r\n"
# Be slow so we don't depend on other modules
- testdata = testdata + chr(i)
-testdata = testdata + "\r\nHello world.\n"
+ data += "".join(map(chr, xrange(256)))
+ data += "\r\nHello world.\n"
-# Test base64 with valid data
-print "base64 test"
-MAX_BASE64 = 57
-lines = []
-for i in range(0, len(testdata), MAX_BASE64):
- b = testdata[i:i+MAX_BASE64]
- a = binascii.b2a_base64(b)
- lines.append(a)
- print a,
-res = ""
-for line in lines:
- b = binascii.a2b_base64(line)
- res = res + b
-verify(res == testdata)
+ def test_exceptions(self):
+ # Check module exceptions
+ self.assert_(issubclass(binascii.Error, Exception))
+ self.assert_(issubclass(binascii.Incomplete, Exception))
-# Test base64 with random invalid characters sprinkled throughout
-# (This requires a new version of binascii.)
-fillers = ""
-valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/"
-for i in range(256):
- c = chr(i)
- if c not in valid:
- fillers = fillers + c
-def addnoise(line):
- noise = fillers
- ratio = len(line) // len(noise)
- res = ""
- while line and noise:
- if len(line) // len(noise) > ratio:
- c, line = line[0], line[1:]
+ def test_functions(self):
+ # Check presence of all functions
+ funcs = []
+ for suffix in "base64", "hqx", "uu", "hex":
+ prefixes = ["a2b_", "b2a_"]
+ if suffix == "hqx":
+ prefixes.extend(["crc_", "rlecode_", "rledecode_"])
+ for prefix in prefixes:
+ name = prefix + suffix
+ self.assert_(callable(getattr(binascii, name)))
+ self.assertRaises(TypeError, getattr(binascii, name))
+ for name in ("hexlify", "unhexlify"):
+ self.assert_(callable(getattr(binascii, name)))
+ self.assertRaises(TypeError, getattr(binascii, name))
+
+ def test_base64valid(self):
+ # Test base64 with valid data
+ MAX_BASE64 = 57
+ lines = []
+ for i in range(0, len(self.data), MAX_BASE64):
+ b = self.data[i:i+MAX_BASE64]
+ a = binascii.b2a_base64(b)
+ lines.append(a)
+ res = ""
+ for line in lines:
+ b = binascii.a2b_base64(line)
+ res = res + b
+ self.assertEqual(res, self.data)
+
+ def test_base64invalid(self):
+ # Test base64 with random invalid characters sprinkled throughout
+ # (This requires a new version of binascii.)
+ MAX_BASE64 = 57
+ lines = []
+ for i in range(0, len(self.data), MAX_BASE64):
+ b = self.data[i:i+MAX_BASE64]
+ a = binascii.b2a_base64(b)
+ lines.append(a)
+
+ fillers = ""
+ valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/"
+ for i in xrange(256):
+ c = chr(i)
+ if c not in valid:
+ fillers += c
+ def addnoise(line):
+ noise = fillers
+ ratio = len(line) // len(noise)
+ res = ""
+ while line and noise:
+ if len(line) // len(noise) > ratio:
+ c, line = line[0], line[1:]
+ else:
+ c, noise = noise[0], noise[1:]
+ res += c
+ return res + noise + line
+ res = ""
+ for line in map(addnoise, lines):
+ b = binascii.a2b_base64(line)
+ res += b
+ self.assertEqual(res, self.data)
+
+ # Test base64 with just invalid characters, which should return
+ # empty strings. TBD: shouldn't it raise an exception instead ?
+ self.assertEqual(binascii.a2b_base64(fillers), '')
+
+ def test_uu(self):
+ MAX_UU = 45
+ lines = []
+ for i in range(0, len(self.data), MAX_UU):
+ b = self.data[i:i+MAX_UU]
+ a = binascii.b2a_uu(b)
+ lines.append(a)
+ res = ""
+ for line in lines:
+ b = binascii.a2b_uu(line)
+ res += b
+ self.assertEqual(res, self.data)
+
+ self.assertEqual(binascii.a2b_uu("\x7f"), "\x00"*31)
+ self.assertEqual(binascii.a2b_uu("\x80"), "\x00"*32)
+ self.assertEqual(binascii.a2b_uu("\xff"), "\x00"*31)
+ self.assertRaises(binascii.Error, binascii.a2b_uu, "\xff\x00")
+ self.assertRaises(binascii.Error, binascii.a2b_uu, "!!!!")
+
+ self.assertRaises(binascii.Error, binascii.b2a_uu, 46*"!")
+
+ def test_crc32(self):
+ crc = binascii.crc32("Test the CRC-32 of")
+ crc = binascii.crc32(" this string.", crc)
+ self.assertEqual(crc, 1571220330)
+
+ self.assertRaises(TypeError, binascii.crc32)
+
+ # The hqx test is in test_binhex.py
+
+ def test_hex(self):
+ # test hexlification
+ s = '{s\005\000\000\000worldi\002\000\000\000s\005\000\000\000helloi\001\000\000\0000'
+ t = binascii.b2a_hex(s)
+ u = binascii.a2b_hex(t)
+ self.assertEqual(s, u)
+ self.assertRaises(TypeError, binascii.a2b_hex, t[:-1])
+ self.assertRaises(TypeError, binascii.a2b_hex, t[:-1] + 'q')
+
+ # Verify the treatment of Unicode strings
+ if test_support.have_unicode:
+ self.assertEqual(binascii.hexlify(unicode('a', 'ascii')), '61')
+
+ def test_qp(self):
+ # A test for SF bug 534347 (segfaults without the proper fix)
+ try:
+ binascii.a2b_qp("", **{1:1})
+ except TypeError:
+ pass
else:
- c, noise = noise[0], noise[1:]
- res = res + c
- return res + noise + line
-res = ""
-for line in map(addnoise, lines):
- b = binascii.a2b_base64(line)
- res = res + b
-verify(res == testdata)
+ self.fail("binascii.a2b_qp(**{1:1}) didn't raise TypeError")
+ self.assertEqual(binascii.a2b_qp("= "), "")
+ self.assertEqual(binascii.a2b_qp("=="), "=")
+ self.assertEqual(binascii.a2b_qp("=AX"), "=AX")
+ self.assertRaises(TypeError, binascii.b2a_qp, foo="bar")
+ self.assertEqual(binascii.a2b_qp("=00\r\n=00"), "\x00\r\n\x00")
+ self.assertEqual(
+ binascii.b2a_qp("\xff\r\n\xff\n\xff"),
+ "=FF\r\n=FF\r\n=FF"
+ )
+ self.assertEqual(
+ binascii.b2a_qp("0"*75+"\xff\r\n\xff\r\n\xff"),
+ "0"*75+"=\r\n=FF\r\n=FF\r\n=FF"
+ )
-# Test base64 with just invalid characters, which should return
-# empty strings. TBD: shouldn't it raise an exception instead ?
-verify(binascii.a2b_base64(fillers) == '')
+def test_main():
+ test_support.run_unittest(BinASCIITest)
-# Test uu
-print "uu test"
-MAX_UU = 45
-lines = []
-for i in range(0, len(testdata), MAX_UU):
- b = testdata[i:i+MAX_UU]
- a = binascii.b2a_uu(b)
- lines.append(a)
- print a,
-res = ""
-for line in lines:
- b = binascii.a2b_uu(line)
- res = res + b
-verify(res == testdata)
-
-# Test crc32()
-crc = binascii.crc32("Test the CRC-32 of")
-crc = binascii.crc32(" this string.", crc)
-if crc != 1571220330:
- print "binascii.crc32() failed."
-
-# The hqx test is in test_binhex.py
-
-# test hexlification
-s = '{s\005\000\000\000worldi\002\000\000\000s\005\000\000\000helloi\001\000\000\0000'
-t = binascii.b2a_hex(s)
-u = binascii.a2b_hex(t)
-if s != u:
- print 'binascii hexlification failed'
-try:
- binascii.a2b_hex(t[:-1])
-except TypeError:
- pass
-else:
- print 'expected TypeError not raised'
-try:
- binascii.a2b_hex(t[:-1] + 'q')
-except TypeError:
- pass
-else:
- print 'expected TypeError not raised'
-
-# Verify the treatment of Unicode strings
-if have_unicode:
- verify(binascii.hexlify(unicode('a', 'ascii')) == '61',
- "hexlify failed for Unicode")
-
-# A test for SF bug 534347 (segfaults without the proper fix)
-try:
- binascii.a2b_qp("", **{1:1})
-except TypeError:
- pass
-else:
- raise TestFailed, "binascii..a2b_qp(**{1:1}) didn't raise TypeError"
+if __name__ == "__main__":
+ test_main()