diff options
Diffstat (limited to 'Lib/test/test_binascii.py')
| -rw-r--r--[-rwxr-xr-x] | Lib/test/test_binascii.py | 137 |
1 files changed, 98 insertions, 39 deletions
diff --git a/Lib/test/test_binascii.py b/Lib/test/test_binascii.py index 7fb07be..f825f1c 100755..100644 --- a/Lib/test/test_binascii.py +++ b/Lib/test/test_binascii.py @@ -3,48 +3,76 @@ from test import test_support import unittest import binascii +import array + +# Note: "*_hex" functions are aliases for "(un)hexlify" +b2a_functions = ['b2a_base64', 'b2a_hex', 'b2a_hqx', 'b2a_qp', 'b2a_uu', + 'hexlify', 'rlecode_hqx'] +a2b_functions = ['a2b_base64', 'a2b_hex', 'a2b_hqx', 'a2b_qp', 'a2b_uu', + 'unhexlify', 'rledecode_hqx'] +all_functions = a2b_functions + b2a_functions + ['crc32', 'crc_hqx'] + class BinASCIITest(unittest.TestCase): + type2test = str # Create binary test data - data = "The quick brown fox jumps over the lazy dog.\r\n" + rawdata = "The quick brown fox jumps over the lazy dog.\r\n" # Be slow so we don't depend on other modules - data += "".join(map(chr, xrange(256))) - data += "\r\nHello world.\n" + rawdata += "".join(map(chr, xrange(256))) + rawdata += "\r\nHello world.\n" + + def setUp(self): + self.data = self.type2test(self.rawdata) def test_exceptions(self): # Check module exceptions - self.assert_(issubclass(binascii.Error, Exception)) - self.assert_(issubclass(binascii.Incomplete, Exception)) + self.assertTrue(issubclass(binascii.Error, Exception)) + self.assertTrue(issubclass(binascii.Incomplete, Exception)) 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.assertTrue(hasattr(getattr(binascii, name), '__call__')) - self.assertRaises(TypeError, getattr(binascii, name)) - for name in ("hexlify", "unhexlify"): + for name in all_functions: self.assertTrue(hasattr(getattr(binascii, name), '__call__')) self.assertRaises(TypeError, getattr(binascii, name)) + def test_returned_value(self): + # Limit to the minimum of all limits (b2a_uu) + MAX_ALL = 45 + raw = self.rawdata[:MAX_ALL] + for fa, fb in zip(a2b_functions, b2a_functions): + a2b = getattr(binascii, fa) + b2a = getattr(binascii, fb) + try: + a = b2a(self.type2test(raw)) + res = a2b(self.type2test(a)) + except Exception, err: + self.fail("{}/{} conversion raises {!r}".format(fb, fa, err)) + if fb == 'b2a_hqx': + # b2a_hqx returns a tuple + res, _ = res + self.assertEqual(res, raw, "{}/{} conversion: " + "{!r} != {!r}".format(fb, fa, res, raw)) + self.assertIsInstance(res, str) + self.assertIsInstance(a, str) + self.assertLess(max(ord(c) for c in a), 128) + self.assertIsInstance(binascii.crc_hqx(raw, 0), int) + self.assertIsInstance(binascii.crc32(raw), int) + 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] + for i in range(0, len(self.rawdata), MAX_BASE64): + b = self.type2test(self.rawdata[i:i+MAX_BASE64]) a = binascii.b2a_base64(b) lines.append(a) res = "" for line in lines: - b = binascii.a2b_base64(line) + a = self.type2test(line) + b = binascii.a2b_base64(a) res = res + b - self.assertEqual(res, self.data) + self.assertEqual(res, self.rawdata) def test_base64invalid(self): # Test base64 with random invalid characters sprinkled throughout @@ -52,7 +80,7 @@ class BinASCIITest(unittest.TestCase): MAX_BASE64 = 57 lines = [] for i in range(0, len(self.data), MAX_BASE64): - b = self.data[i:i+MAX_BASE64] + b = self.type2test(self.rawdata[i:i+MAX_BASE64]) a = binascii.b2a_base64(b) lines.append(a) @@ -75,26 +103,28 @@ class BinASCIITest(unittest.TestCase): return res + noise + line res = "" for line in map(addnoise, lines): - b = binascii.a2b_base64(line) + a = self.type2test(line) + b = binascii.a2b_base64(a) res += b - self.assertEqual(res, self.data) + self.assertEqual(res, self.rawdata) # 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), '') + self.assertEqual(binascii.a2b_base64(self.type2test(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] + b = self.type2test(self.rawdata[i:i+MAX_UU]) a = binascii.b2a_uu(b) lines.append(a) res = "" for line in lines: - b = binascii.a2b_uu(line) + a = self.type2test(line) + b = binascii.a2b_uu(a) res += b - self.assertEqual(res, self.data) + self.assertEqual(res, self.rawdata) self.assertEqual(binascii.a2b_uu("\x7f"), "\x00"*31) self.assertEqual(binascii.a2b_uu("\x80"), "\x00"*32) @@ -108,19 +138,27 @@ class BinASCIITest(unittest.TestCase): self.assertEqual(binascii.b2a_uu('x'), '!> \n') def test_crc32(self): - crc = binascii.crc32("Test the CRC-32 of") - crc = binascii.crc32(" this string.", crc) + crc = binascii.crc32(self.type2test("Test the CRC-32 of")) + crc = binascii.crc32(self.type2test(" this string."), crc) self.assertEqual(crc, 1571220330) self.assertRaises(TypeError, binascii.crc32) - # The hqx test is in test_binhex.py + def test_hqx(self): + # Perform binhex4 style RLE-compression + # Then calculate the hexbin4 binary-to-ASCII translation + rle = binascii.rlecode_hqx(self.data) + a = binascii.b2a_hqx(self.type2test(rle)) + b, _ = binascii.a2b_hqx(self.type2test(a)) + res = binascii.rledecode_hqx(b) + + self.assertEqual(res, self.rawdata) 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) + t = binascii.b2a_hex(self.type2test(s)) + u = binascii.a2b_hex(self.type2test(t)) self.assertEqual(s, u) self.assertRaises(TypeError, binascii.a2b_hex, t[:-1]) self.assertRaises(TypeError, binascii.a2b_hex, t[:-1] + 'q') @@ -162,16 +200,37 @@ class BinASCIITest(unittest.TestCase): def test_empty_string(self): # A test for SF bug #1022953. Make sure SystemError is not raised. - for n in ['b2a_qp', 'a2b_hex', 'b2a_base64', 'a2b_uu', 'a2b_qp', - 'b2a_hex', 'unhexlify', 'hexlify', 'crc32', 'b2a_hqx', - 'a2b_hqx', 'a2b_base64', 'rlecode_hqx', 'b2a_uu', - 'rledecode_hqx']: - f = getattr(binascii, n) - f('') - binascii.crc_hqx('', 0) + empty = self.type2test('') + for func in all_functions: + if func == 'crc_hqx': + # crc_hqx needs 2 arguments + binascii.crc_hqx(empty, 0) + continue + f = getattr(binascii, func) + try: + f(empty) + except Exception, err: + self.fail("{}({!r}) raises {!r}".format(func, empty, err)) + + +class ArrayBinASCIITest(BinASCIITest): + def type2test(self, s): + return array.array('c', s) + + +class BytearrayBinASCIITest(BinASCIITest): + type2test = bytearray + + +class MemoryviewBinASCIITest(BinASCIITest): + type2test = memoryview + def test_main(): - test_support.run_unittest(BinASCIITest) + test_support.run_unittest(BinASCIITest, + ArrayBinASCIITest, + BytearrayBinASCIITest, + MemoryviewBinASCIITest) if __name__ == "__main__": test_main() |