"""Unit tests for the bytes and bytearray types.XXX This is a mess. Common tests should be moved to buffer_tests.py,which itself ought to be unified with string_tests.py (and the lattershould be modernized)."""import osimport reimport sysimport copyimport pickleimport tempfileimport unittestimport warningsimport test.test_supportimport test.string_testsimport test.buffer_testsclass Indexable:def __init__(self, value=0):self.value = valuedef __index__(self):return self.valueclass BaseBytesTest(unittest.TestCase):def setUp(self):self.warning_filters = warnings.filters[:]def tearDown(self):warnings.filters = self.warning_filtersdef test_basics(self):b = self.type2test()self.assertEqual(type(b), self.type2test)self.assertEqual(b.__class__, self.type2test)def test_empty_sequence(self):b = self.type2test()self.assertEqual(len(b), 0)self.assertRaises(IndexError, lambda: b[0])self.assertRaises(IndexError, lambda: b[1])self.assertRaises(IndexError, lambda: b[sys.maxint])self.assertRaises(IndexError, lambda: b[sys.maxint+1])self.assertRaises(IndexError, lambda: b[10**100])self.assertRaises(IndexError, lambda: b[-1])self.assertRaises(IndexError, lambda: b[-2])self.assertRaises(IndexError, lambda: b[-sys.maxint])self.assertRaises(IndexError, lambda: b[-sys.maxint-1])self.assertRaises(IndexError, lambda: b[-sys.maxint-2])self.assertRaises(IndexError, lambda: b[-10**100])def test_from_list(self):ints = list(range(256))b = self.type2test(i for i in ints)self.assertEqual(len(b), 256)self.assertEqual(list(b), ints)def test_from_index(self):b = self.type2test([Indexable(), Indexable(1), Indexable(254),Indexable(255)])self.assertEqual(list(b), [0, 1, 254, 255])self.assertRaises(ValueError, bytearray, [Indexable(-1)])self.assertRaises(ValueError, bytearray, [Indexable(256)])def test_from_ssize(self):self.assertEqual(bytearray(0), b'')self.assertEqual(bytearray(1), b'\x00')self.assertEqual(bytearray(5), b'\x00\x00\x00\x00\x00')self.assertRaises(ValueError, bytearray, -1)self.assertEqual(bytearray('0', 'ascii'), b'0')self.assertEqual(bytearray(b'0'), b'0')def test_constructor_type_errors(self):self.assertRaises(TypeError, self.type2test, 0.0)class C:pass# allowed in 2.6#self.assertRaises(TypeError, self.type2test, ["0"])self.assertRaises(TypeError, self.type2test, [0.0])self.assertRaises(TypeError, self.type2test, [None])self.assertRaises(TypeError, self.type2test, [C()])def test_constructor_value_errors(self):self.assertRaises(ValueError, self.type2test, [-1])self.assertRaises(ValueError, self.type2test, [-sys.maxint])self.assertRaises(ValueError, self.type2test, [-sys.maxint-1])self.assertRaises(ValueError, self.type2test, [-sys.maxint-2])self.assertRaises(ValueError, self.type2test, [-10**100])self.assertRaises(ValueError, self.type2test, [256])self.assertRaises(ValueError, self.type2test, [257])self.assertRaises(ValueError, self.type2test, [sys.maxint])self.assertRaises(ValueError, self.type2test, [sys.maxint+1])self.assertRaises(ValueError, self.type2test, [10**100])def test_compare(self):b1 = self.type2test([1, 2, 3])b2 = self.type2test([1, 2, 3])b3 = self.type2test([1, 3])self.assertEqual(b1, b2)self.failUnless(b2 != b3)self.failUnless(b1 <= b2)self.failUnless(b1 <= b3)self.failUnless(b1 < b3)self.failUnless(b1 >= b2)self.failUnless(b3 >= b2)self.failUnless(b3 > b2)self.failIf(b1 != b2)self.failIf(b2 == b3)self.failIf(b1 > b2)self.failIf(b1 > b3)self.failIf(b1 >= b3)self.failIf(b1 < b2)self.failIf(b3 < b2)self.failIf(b3 <= b2)def test_compare_to_str(self):warnings.simplefilter('ignore', BytesWarning)# Byte comparisons with unicode should always fail!# Test this for all expected byte orders and Unicode character sizesself.assertEqual(self.type2test(b"0円a0円b0円c") == u"abc", False)self.assertEqual(self.type2test(b"0円0円0円a0円0円0円b0円0円0円c") == u"abc", False)self.assertEqual(self.type2test(b"a0円b0円c0円") == u"abc", False)self.assertEqual(self.type2test(b"a0円0円0円b0円0円0円c0円0円0円") == u"abc", False)self.assertEqual(self.type2test() == unicode(), False)self.assertEqual(self.type2test() != unicode(), True)def test_reversed(self):input = list(map(ord, "Hello"))b = self.type2test(input)output = list(reversed(b))input.reverse()self.assertEqual(output, input)def test_getslice(self):def by(s):return self.type2test(map(ord, s))b = by("Hello, world")self.assertEqual(b[:5], by("Hello"))self.assertEqual(b[1:5], by("ello"))self.assertEqual(b[5:7], by(", "))self.assertEqual(b[7:], by("world"))self.assertEqual(b[7:12], by("world"))self.assertEqual(b[7:100], by("world"))self.assertEqual(b[:-7], by("Hello"))self.assertEqual(b[-11:-7], by("ello"))self.assertEqual(b[-7:-5], by(", "))self.assertEqual(b[-5:], by("world"))self.assertEqual(b[-5:12], by("world"))self.assertEqual(b[-5:100], by("world"))self.assertEqual(b[-100:5], by("Hello"))def test_extended_getslice(self):# Test extended slicing by comparing with list slicing.L = list(range(255))b = self.type2test(L)indices = (0, None, 1, 3, 19, 100, -1, -2, -31, -100)for start in indices:for stop in indices:# Skip step 0 (invalid)for step in indices[1:]:self.assertEqual(b[start:stop:step], self.type2test(L[start:stop:step]))def test_encoding(self):sample = u"Hello world\n\u1234\u5678\u9abc\udef0"for enc in ("utf8", "utf16"):b = self.type2test(sample, enc)self.assertEqual(b, self.type2test(sample.encode(enc)))self.assertRaises(UnicodeEncodeError, self.type2test, sample, "latin1")b = self.type2test(sample, "latin1", "ignore")self.assertEqual(b, self.type2test(sample[:-4], "utf-8"))def test_decode(self):sample = u"Hello world\n\u1234\u5678\u9abc\def0\def0"for enc in ("utf8", "utf16"):b = self.type2test(sample, enc)self.assertEqual(b.decode(enc), sample)sample = u"Hello world\n\x80\x81\xfe\xff"b = self.type2test(sample, "latin1")self.assertRaises(UnicodeDecodeError, b.decode, "utf8")self.assertEqual(b.decode("utf8", "ignore"), "Hello world\n")def test_from_int(self):b = self.type2test(0)self.assertEqual(b, self.type2test())b = self.type2test(10)self.assertEqual(b, self.type2test([0]*10))b = self.type2test(10000)self.assertEqual(b, self.type2test([0]*10000))def test_concat(self):b1 = self.type2test(b"abc")b2 = self.type2test(b"def")self.assertEqual(b1 + b2, b"abcdef")self.assertEqual(b1 + bytes(b"def"), b"abcdef")self.assertEqual(bytes(b"def") + b1, b"defabc")self.assertRaises(TypeError, lambda: b1 + u"def")self.assertRaises(TypeError, lambda: u"abc" + b2)def test_repeat(self):for b in b"abc", self.type2test(b"abc"):self.assertEqual(b * 3, b"abcabcabc")self.assertEqual(b * 0, b"")self.assertEqual(b * -1, b"")self.assertRaises(TypeError, lambda: b * 3.14)self.assertRaises(TypeError, lambda: 3.14 * b)# XXX Shouldn't bytes and bytearray agree on what to raise?self.assertRaises((OverflowError, MemoryError),lambda: b * sys.maxsize)def test_repeat_1char(self):self.assertEqual(self.type2test(b'x')*100, self.type2test([ord('x')]*100))def test_contains(self):b = self.type2test(b"abc")self.failUnless(ord('a') in b)self.failUnless(int(ord('a')) in b)self.failIf(200 in b)self.failIf(200 in b)self.assertRaises(ValueError, lambda: 300 in b)self.assertRaises(ValueError, lambda: -1 in b)self.assertRaises(TypeError, lambda: None in b)self.assertRaises(TypeError, lambda: float(ord('a')) in b)self.assertRaises(TypeError, lambda: u"a" in b)for f in bytes, bytearray:self.failUnless(f(b"") in b)self.failUnless(f(b"a") in b)self.failUnless(f(b"b") in b)self.failUnless(f(b"c") in b)self.failUnless(f(b"ab") in b)self.failUnless(f(b"bc") in b)self.failUnless(f(b"abc") in b)self.failIf(f(b"ac") in b)self.failIf(f(b"d") in b)self.failIf(f(b"dab") in b)self.failIf(f(b"abd") in b)def test_fromhex(self):self.assertRaises(TypeError, self.type2test.fromhex)self.assertRaises(TypeError, self.type2test.fromhex, 1)self.assertEquals(self.type2test.fromhex(u''), self.type2test())b = bytearray([0x1a, 0x2b, 0x30])self.assertEquals(self.type2test.fromhex(u'1a2B30'), b)self.assertEquals(self.type2test.fromhex(u' 1A 2B 30 '), b)self.assertEquals(self.type2test.fromhex(u'0000'), b'0円0円')self.assertRaises(ValueError, self.type2test.fromhex, u'a')self.assertRaises(ValueError, self.type2test.fromhex, u'rt')self.assertRaises(ValueError, self.type2test.fromhex, u'1a b cd')self.assertRaises(ValueError, self.type2test.fromhex, u'\x00')self.assertRaises(ValueError, self.type2test.fromhex, u'12 \x00 34')def test_join(self):self.assertEqual(self.type2test(b"").join([]), b"")self.assertEqual(self.type2test(b"").join([b""]), b"")for lst in [[b"abc"], [b"a", b"bc"], [b"ab", b"c"], [b"a", b"b", b"c"]]:lst = list(map(self.type2test, lst))self.assertEqual(self.type2test(b"").join(lst), b"abc")self.assertEqual(self.type2test(b"").join(tuple(lst)), b"abc")self.assertEqual(self.type2test(b"").join(iter(lst)), b"abc")self.assertEqual(self.type2test(b".").join([b"ab", b"cd"]), b"ab.cd")# XXX more...def test_index(self):b = self.type2test(b'parrot')self.assertEqual(b.index('p'), 0)self.assertEqual(b.index('rr'), 2)self.assertEqual(b.index('t'), 5)self.assertRaises(ValueError, lambda: b.index('w'))def test_count(self):b = self.type2test(b'mississippi')self.assertEqual(b.count(b'i'), 4)self.assertEqual(b.count(b'ss'), 2)self.assertEqual(b.count(b'w'), 0)def test_startswith(self):b = self.type2test(b'hello')self.assertFalse(self.type2test().startswith(b"anything"))self.assertTrue(b.startswith(b"hello"))self.assertTrue(b.startswith(b"hel"))self.assertTrue(b.startswith(b"h"))self.assertFalse(b.startswith(b"hellow"))self.assertFalse(b.startswith(b"ha"))def test_endswith(self):b = self.type2test(b'hello')self.assertFalse(bytearray().endswith(b"anything"))self.assertTrue(b.endswith(b"hello"))self.assertTrue(b.endswith(b"llo"))self.assertTrue(b.endswith(b"o"))self.assertFalse(b.endswith(b"whello"))self.assertFalse(b.endswith(b"no"))def test_find(self):b = self.type2test(b'mississippi')self.assertEqual(b.find(b'ss'), 2)self.assertEqual(b.find(b'ss', 3), 5)self.assertEqual(b.find(b'ss', 1, 7), 2)self.assertEqual(b.find(b'ss', 1, 3), -1)self.assertEqual(b.find(b'w'), -1)self.assertEqual(b.find(b'mississippian'), -1)def test_rfind(self):b = self.type2test(b'mississippi')self.assertEqual(b.rfind(b'ss'), 5)self.assertEqual(b.rfind(b'ss', 3), 5)self.assertEqual(b.rfind(b'ss', 0, 6), 2)self.assertEqual(b.rfind(b'w'), -1)self.assertEqual(b.rfind(b'mississippian'), -1)def test_index(self):b = self.type2test(b'world')self.assertEqual(b.index(b'w'), 0)self.assertEqual(b.index(b'orl'), 1)self.assertRaises(ValueError, b.index, b'worm')self.assertRaises(ValueError, b.index, b'ldo')def test_rindex(self):# XXX could be more rigorousb = self.type2test(b'world')self.assertEqual(b.rindex(b'w'), 0)self.assertEqual(b.rindex(b'orl'), 1)self.assertRaises(ValueError, b.rindex, b'worm')self.assertRaises(ValueError, b.rindex, b'ldo')def test_replace(self):b = self.type2test(b'mississippi')self.assertEqual(b.replace(b'i', b'a'), b'massassappa')self.assertEqual(b.replace(b'ss', b'x'), b'mixixippi')def test_split(self):b = self.type2test(b'mississippi')self.assertEqual(b.split(b'i'), [b'm', b'ss', b'ss', b'pp', b''])self.assertEqual(b.split(b'ss'), [b'mi', b'i', b'ippi'])self.assertEqual(b.split(b'w'), [b])def test_split_whitespace(self):for b in (b' arf barf ', b'arf\tbarf', b'arf\nbarf', b'arf\rbarf',b'arf\fbarf', b'arf\vbarf'):b = self.type2test(b)self.assertEqual(b.split(), [b'arf', b'barf'])self.assertEqual(b.split(None), [b'arf', b'barf'])self.assertEqual(b.split(None, 2), [b'arf', b'barf'])for b in (b'a\x1Cb', b'a\x1Db', b'a\x1Eb', b'a\x1Fb'):b = self.type2test(b)self.assertEqual(b.split(), [b])self.assertEqual(self.type2test(b' a bb c ').split(None, 0), [b'a bb c '])self.assertEqual(self.type2test(b' a bb c ').split(None, 1), [b'a', b'bb c '])self.assertEqual(self.type2test(b' a bb c ').split(None, 2), [b'a', b'bb', b'c '])self.assertEqual(self.type2test(b' a bb c ').split(None, 3), [b'a', b'bb', b'c'])def test_split_string_error(self):self.assertRaises(TypeError, self.type2test(b'a b').split, u' ')def test_rsplit(self):b = self.type2test(b'mississippi')self.assertEqual(b.rsplit(b'i'), [b'm', b'ss', b'ss', b'pp', b''])self.assertEqual(b.rsplit(b'ss'), [b'mi', b'i', b'ippi'])self.assertEqual(b.rsplit(b'w'), [b])def test_rsplit_whitespace(self):for b in (b' arf barf ', b'arf\tbarf', b'arf\nbarf', b'arf\rbarf',b'arf\fbarf', b'arf\vbarf'):b = self.type2test(b)self.assertEqual(b.rsplit(), [b'arf', b'barf'])self.assertEqual(b.rsplit(None), [b'arf', b'barf'])self.assertEqual(b.rsplit(None, 2), [b'arf', b'barf'])self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 0), [b' a bb c'])self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 1), [b' a bb', b'c'])self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 2), [b' a', b'bb', b'c'])self.assertEqual(self.type2test(b' a bb c ').rsplit(None, 3), [b'a', b'bb', b'c'])def test_rsplit_string_error(self):self.assertRaises(TypeError, self.type2test(b'a b').rsplit, u' ')def test_rsplit_unicodewhitespace(self):b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F")self.assertEqual(b.split(), [b'\x1c\x1d\x1e\x1f'])self.assertEqual(b.rsplit(), [b'\x1c\x1d\x1e\x1f'])def test_partition(self):b = self.type2test(b'mississippi')self.assertEqual(b.partition(b'ss'), (b'mi', b'ss', b'issippi'))self.assertEqual(b.rpartition(b'w'), (b'', b'', b'mississippi'))def test_rpartition(self):b = self.type2test(b'mississippi')self.assertEqual(b.rpartition(b'ss'), (b'missi', b'ss', b'ippi'))self.assertEqual(b.rpartition(b'i'), (b'mississipp', b'i', b''))def test_pickling(self):for proto in range(pickle.HIGHEST_PROTOCOL + 1):for b in b"", b"a", b"abc", b"\xffab\x80", b"0円0円377円0円0円":b = self.type2test(b)ps = pickle.dumps(b, proto)q = pickle.loads(ps)self.assertEqual(b, q)def test_strip(self):b = self.type2test(b'mississippi')self.assertEqual(b.strip(b'i'), b'mississipp')self.assertEqual(b.strip(b'm'), b'ississippi')self.assertEqual(b.strip(b'pi'), b'mississ')self.assertEqual(b.strip(b'im'), b'ssissipp')self.assertEqual(b.strip(b'pim'), b'ssiss')self.assertEqual(b.strip(b), b'')def test_lstrip(self):b = self.type2test(b'mississippi')self.assertEqual(b.lstrip(b'i'), b'mississippi')self.assertEqual(b.lstrip(b'm'), b'ississippi')self.assertEqual(b.lstrip(b'pi'), b'mississippi')self.assertEqual(b.lstrip(b'im'), b'ssissippi')self.assertEqual(b.lstrip(b'pim'), b'ssissippi')def test_rstrip(self):b = self.type2test(b'mississippi')self.assertEqual(b.rstrip(b'i'), b'mississipp')self.assertEqual(b.rstrip(b'm'), b'mississippi')self.assertEqual(b.rstrip(b'pi'), b'mississ')self.assertEqual(b.rstrip(b'im'), b'mississipp')self.assertEqual(b.rstrip(b'pim'), b'mississ')def test_strip_whitespace(self):b = self.type2test(b' \t\n\r\f\vabc \t\n\r\f\v')self.assertEqual(b.strip(), b'abc')self.assertEqual(b.lstrip(), b'abc \t\n\r\f\v')self.assertEqual(b.rstrip(), b' \t\n\r\f\vabc')def XXXtest_strip_bytearray(self):# XXX memoryview not availableself.assertEqual(self.type2test(b'abc').strip(memoryview(b'ac')), b'b')self.assertEqual(self.type2test(b'abc').lstrip(memoryview(b'ac')), b'bc')self.assertEqual(self.type2test(b'abc').rstrip(memoryview(b'ac')), b'ab')def test_strip_string_error(self):self.assertRaises(TypeError, self.type2test(b'abc').strip, u'b')self.assertRaises(TypeError, self.type2test(b'abc').lstrip, u'b')self.assertRaises(TypeError, self.type2test(b'abc').rstrip, u'b')def test_ord(self):b = self.type2test(b'0円A\x7f\x80\xff')self.assertEqual([ord(b[i:i+1]) for i in range(len(b))],[0, 65, 127, 128, 255])class ByteArrayTest(BaseBytesTest):type2test = bytearraydef test_nohash(self):self.assertRaises(TypeError, hash, bytearray())def test_bytearray_api(self):short_sample = b"Hello world\n"sample = short_sample + b"0円"*(20 - len(short_sample))tfn = tempfile.mktemp()try:# Preparewith open(tfn, "wb") as f:f.write(short_sample)# Test readintowith open(tfn, "rb") as f:b = bytearray(20)n = f.readinto(b)self.assertEqual(n, len(short_sample))# Python 2.xb_sample = (ord(s) for s in sample)self.assertEqual(list(b), list(b_sample))# Test writing in binary modewith open(tfn, "wb") as f:f.write(b)with open(tfn, "rb") as f:self.assertEqual(f.read(), sample)# Text mode is ambiguous; don't testfinally:try:os.remove(tfn)except os.error:passdef test_reverse(self):b = bytearray(b'hello')self.assertEqual(b.reverse(), None)self.assertEqual(b, b'olleh')b = bytearray(b'hello1') # test even number of itemsb.reverse()self.assertEqual(b, b'1olleh')b = bytearray()b.reverse()self.assertFalse(b)def test_regexps(self):def by(s):return bytearray(map(ord, s))b = by("Hello, world")self.assertEqual(re.findall(r"\w+", b), [by("Hello"), by("world")])def test_setitem(self):b = bytearray([1, 2, 3])b[1] = 100self.assertEqual(b, bytearray([1, 100, 3]))b[-1] = 200self.assertEqual(b, bytearray([1, 100, 200]))b[0] = Indexable(10)self.assertEqual(b, bytearray([10, 100, 200]))try:b[3] = 0self.fail("Didn't raise IndexError")except IndexError:passtry:b[-10] = 0self.fail("Didn't raise IndexError")except IndexError:passtry:b[0] = 256self.fail("Didn't raise ValueError")except ValueError:passtry:b[0] = Indexable(-1)self.fail("Didn't raise ValueError")except ValueError:passtry:b[0] = Noneself.fail("Didn't raise TypeError")except TypeError:passdef test_delitem(self):b = bytearray(range(10))del b[0]self.assertEqual(b, bytearray(range(1, 10)))del b[-1]self.assertEqual(b, bytearray(range(1, 9)))del b[4]self.assertEqual(b, bytearray([1, 2, 3, 4, 6, 7, 8]))def test_setslice(self):b = bytearray(range(10))self.assertEqual(list(b), list(range(10)))b[0:5] = bytearray([1, 1, 1, 1, 1])self.assertEqual(b, bytearray([1, 1, 1, 1, 1, 5, 6, 7, 8, 9]))del b[0:-5]self.assertEqual(b, bytearray([5, 6, 7, 8, 9]))b[0:0] = bytearray([0, 1, 2, 3, 4])self.assertEqual(b, bytearray(range(10)))b[-7:-3] = bytearray([100, 101])self.assertEqual(b, bytearray([0, 1, 2, 100, 101, 7, 8, 9]))b[3:5] = [3, 4, 5, 6]self.assertEqual(b, bytearray(range(10)))b[3:0] = [42, 42, 42]self.assertEqual(b, bytearray([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9]))def test_extended_set_del_slice(self):indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)for start in indices:for stop in indices:# Skip invalid step 0for step in indices[1:]:L = list(range(255))b = bytearray(L)# Make sure we have a slice of exactly the right length,# but with different data.data = L[start:stop:step]data.reverse()L[start:stop:step] = datab[start:stop:step] = dataself.assertEquals(b, bytearray(L))del L[start:stop:step]del b[start:stop:step]self.assertEquals(b, bytearray(L))def test_setslice_trap(self):# This test verifies that we correctly handle assigning self# to a slice of self (the old Lambert Meertens trap).b = bytearray(range(256))b[8:] = bself.assertEqual(b, bytearray(list(range(8)) + list(range(256))))def test_iconcat(self):b = bytearray(b"abc")b1 = bb += b"def"self.assertEqual(b, b"abcdef")self.assertEqual(b, b1)self.failUnless(b is b1)b += b"xyz"self.assertEqual(b, b"abcdefxyz")try:b += u""except TypeError:passelse:self.fail("bytes += unicode didn't raise TypeError")def test_irepeat(self):b = bytearray(b"abc")b1 = bb *= 3self.assertEqual(b, b"abcabcabc")self.assertEqual(b, b1)self.failUnless(b is b1)def test_irepeat_1char(self):b = bytearray(b"x")b1 = bb *= 100self.assertEqual(b, b"x"*100)self.assertEqual(b, b1)self.failUnless(b is b1)def test_alloc(self):b = bytearray()alloc = b.__alloc__()self.assert_(alloc >= 0)seq = [alloc]for i in range(100):b += b"x"alloc = b.__alloc__()self.assert_(alloc >= len(b))if alloc not in seq:seq.append(alloc)def test_extend(self):orig = b'hello'a = bytearray(orig)a.extend(a)self.assertEqual(a, orig + orig)self.assertEqual(a[5:], orig)a = bytearray(b'')# Test iterators that don't have a __length_hint__a.extend(map(ord, orig * 25))a.extend(ord(x) for x in orig * 25)self.assertEqual(a, orig * 50)self.assertEqual(a[-5:], orig)a = bytearray(b'')a.extend(iter(map(ord, orig * 50)))self.assertEqual(a, orig * 50)self.assertEqual(a[-5:], orig)a = bytearray(b'')a.extend(list(map(ord, orig * 50)))self.assertEqual(a, orig * 50)self.assertEqual(a[-5:], orig)a = bytearray(b'')self.assertRaises(ValueError, a.extend, [0, 1, 2, 256])self.assertRaises(ValueError, a.extend, [0, 1, 2, -1])self.assertEqual(len(a), 0)a = bytearray(b'')a.extend([Indexable(ord('a'))])self.assertEqual(a, b'a')def test_remove(self):b = bytearray(b'hello')b.remove(ord('l'))self.assertEqual(b, b'helo')b.remove(ord('l'))self.assertEqual(b, b'heo')self.assertRaises(ValueError, lambda: b.remove(ord('l')))self.assertRaises(ValueError, lambda: b.remove(400))self.assertRaises(TypeError, lambda: b.remove(u'e'))# remove first and lastb.remove(ord('o'))b.remove(ord('h'))self.assertEqual(b, b'e')self.assertRaises(TypeError, lambda: b.remove(u'e'))b.remove(Indexable(ord('e')))self.assertEqual(b, b'')def test_pop(self):b = bytearray(b'world')self.assertEqual(b.pop(), ord('d'))self.assertEqual(b.pop(0), ord('w'))self.assertEqual(b.pop(-2), ord('r'))self.assertRaises(IndexError, lambda: b.pop(10))self.assertRaises(OverflowError, lambda: bytearray().pop())def test_nosort(self):self.assertRaises(AttributeError, lambda: bytearray().sort())def test_append(self):b = bytearray(b'hell')b.append(ord('o'))self.assertEqual(b, b'hello')self.assertEqual(b.append(100), None)b = bytearray()b.append(ord('A'))self.assertEqual(len(b), 1)self.assertRaises(TypeError, lambda: b.append(u'o'))b = bytearray()b.append(Indexable(ord('A')))self.assertEqual(b, b'A')def test_insert(self):b = bytearray(b'msssspp')b.insert(1, ord('i'))b.insert(4, ord('i'))b.insert(-2, ord('i'))b.insert(1000, ord('i'))self.assertEqual(b, b'mississippi')# allowed in 2.6#self.assertRaises(TypeError, lambda: b.insert(0, b'1'))b = bytearray()b.insert(0, Indexable(ord('A')))self.assertEqual(b, b'A')def test_copied(self):# Issue 4348. Make sure that operations that don't mutate the array# copy the bytes.b = bytearray(b'abc')self.assertFalse(b is b.replace(b'abc', b'cde', 0))t = bytearray([i for i in range(256)])x = bytearray(b'')self.assertFalse(x is x.translate(t))def test_partition_bytearray_doesnt_share_nullstring(self):a, b, c = bytearray(b"x").partition(b"y")self.assertEqual(b, b"")self.assertEqual(c, b"")self.assert_(b is not c)b += b"!"self.assertEqual(c, b"")a, b, c = bytearray(b"x").partition(b"y")self.assertEqual(b, b"")self.assertEqual(c, b"")# Same for rpartitionb, c, a = bytearray(b"x").rpartition(b"y")self.assertEqual(b, b"")self.assertEqual(c, b"")self.assert_(b is not c)b += b"!"self.assertEqual(c, b"")c, b, a = bytearray(b"x").rpartition(b"y")self.assertEqual(b, b"")self.assertEqual(c, b"")# XXX memoryview not availabledef XXXtest_resize_forbidden(self):# #4509: can't resize a bytearray when there are buffer exports, even# if it wouldn't reallocate the underlying buffer.# Furthermore, no destructive changes to the buffer may be applied# before raising the error.b = bytearray(range(10))v = memoryview(b)def resize(n):b[1:-1] = range(n + 1, 2*n - 1)resize(10)orig = b[:]self.assertRaises(BufferError, resize, 11)self.assertEquals(b, orig)self.assertRaises(BufferError, resize, 9)self.assertEquals(b, orig)self.assertRaises(BufferError, resize, 0)self.assertEquals(b, orig)# Other operations implying resizeself.assertRaises(BufferError, b.pop, 0)self.assertEquals(b, orig)self.assertRaises(BufferError, b.remove, b[1])self.assertEquals(b, orig)def delitem():del b[1]self.assertRaises(BufferError, delitem)self.assertEquals(b, orig)# deleting a non-contiguous slicedef delslice():b[1:-1:2] = b""self.assertRaises(BufferError, delslice)self.assertEquals(b, orig)class AssortedBytesTest(unittest.TestCase):## Test various combinations of bytes and bytearray#def setUp(self):self.warning_filters = warnings.filters[:]def tearDown(self):warnings.filters = self.warning_filtersdef test_repr_str(self):warnings.simplefilter('ignore', BytesWarning)for f in str, repr:self.assertEqual(f(bytearray()), "bytearray(b'')")self.assertEqual(f(bytearray([0])), "bytearray(b'\\x00')")self.assertEqual(f(bytearray([0, 1, 254, 255])),"bytearray(b'\\x00\\x01\\xfe\\xff')")self.assertEqual(f(b"abc"), "b'abc'")self.assertEqual(f(b"'"), '''b"'"''') # '''self.assertEqual(f(b"'\""), r"""b'\'"'""") # 'def test_compare_bytes_to_bytearray(self):self.assertEqual(b"abc" == bytes(b"abc"), True)self.assertEqual(b"ab" != bytes(b"abc"), True)self.assertEqual(b"ab" <= bytes(b"abc"), True)self.assertEqual(b"ab" < bytes(b"abc"), True)self.assertEqual(b"abc" >= bytes(b"ab"), True)self.assertEqual(b"abc" > bytes(b"ab"), True)self.assertEqual(b"abc" != bytes(b"abc"), False)self.assertEqual(b"ab" == bytes(b"abc"), False)self.assertEqual(b"ab" > bytes(b"abc"), False)self.assertEqual(b"ab" >= bytes(b"abc"), False)self.assertEqual(b"abc" < bytes(b"ab"), False)self.assertEqual(b"abc" <= bytes(b"ab"), False)self.assertEqual(bytes(b"abc") == b"abc", True)self.assertEqual(bytes(b"ab") != b"abc", True)self.assertEqual(bytes(b"ab") <= b"abc", True)self.assertEqual(bytes(b"ab") < b"abc", True)self.assertEqual(bytes(b"abc") >= b"ab", True)self.assertEqual(bytes(b"abc") > b"ab", True)self.assertEqual(bytes(b"abc") != b"abc", False)self.assertEqual(bytes(b"ab") == b"abc", False)self.assertEqual(bytes(b"ab") > b"abc", False)self.assertEqual(bytes(b"ab") >= b"abc", False)self.assertEqual(bytes(b"abc") < b"ab", False)self.assertEqual(bytes(b"abc") <= b"ab", False)def test_doc(self):self.failUnless(bytearray.__doc__ != None)self.failUnless(bytearray.__doc__.startswith("bytearray("), bytearray.__doc__)self.failUnless(bytes.__doc__ != None)self.failUnless(bytes.__doc__.startswith("bytes("), bytes.__doc__)def test_from_bytearray(self):sample = bytes(b"Hello world\n\x80\x81\xfe\xff")buf = memoryview(sample)b = bytearray(buf)self.assertEqual(b, bytearray(sample))def test_to_str(self):warnings.simplefilter('ignore', BytesWarning)self.assertEqual(str(b''), "b''")self.assertEqual(str(b'x'), "b'x'")self.assertEqual(str(b'\x80'), "b'\\x80'")self.assertEqual(str(bytearray(b'')), "bytearray(b'')")self.assertEqual(str(bytearray(b'x')), "bytearray(b'x')")self.assertEqual(str(bytearray(b'\x80')), "bytearray(b'\\x80')")def test_literal(self):tests = [(b"Wonderful spam", "Wonderful spam"),(br"Wonderful spam too", "Wonderful spam too"),(b"\xaa\x00000円200円", "\xaa\x00000円200円"),(br"\xaa\x00000円200円", r"\xaa\x00000円200円"),]for b, s in tests:self.assertEqual(b, bytearray(s, 'latin-1'))for c in range(128, 256):self.assertRaises(SyntaxError, eval,'b"%s"' % chr(c))def test_translate(self):b = b'hello'ba = bytearray(b)rosetta = bytearray(range(0, 256))rosetta[ord('o')] = ord('e')c = b.translate(rosetta, b'l')self.assertEqual(b, b'hello')self.assertEqual(c, b'hee')c = ba.translate(rosetta, b'l')self.assertEqual(ba, b'hello')self.assertEqual(c, b'hee')c = b.translate(None, b'e')self.assertEqual(c, b'hllo')c = ba.translate(None, b'e')self.assertEqual(c, b'hllo')self.assertRaises(TypeError, b.translate, None, None)self.assertRaises(TypeError, ba.translate, None, None)def test_split_bytearray(self):self.assertEqual(b'a b'.split(memoryview(b' ')), [b'a', b'b'])def test_rsplit_bytearray(self):self.assertEqual(b'a b'.rsplit(memoryview(b' ')), [b'a', b'b'])# Optimizations:# __iter__? (optimization)# __reversed__? (optimization)# XXX More string methods? (Those that don't use character properties)# There are tests in string_tests.py that are more# comprehensive for things like split, partition, etc.# Unfortunately they are all bundled with tests that# are not appropriate for bytes# I've started porting some of those into bytearray_tests.py, we should port# the rest that make sense (the code can be cleaned up to use modern# unittest methods at the same time).class BytearrayPEP3137Test(unittest.TestCase,test.buffer_tests.MixinBytesBufferCommonTests):def marshal(self, x):return bytearray(x)def test_returns_new_copy(self):val = self.marshal(b'1234')# On immutable types these MAY return a reference to themselves# but on mutable types like bytearray they MUST return a new copy.for methname in ('zfill', 'rjust', 'ljust', 'center'):method = getattr(val, methname)newval = method(3)self.assertEqual(val, newval)self.assertTrue(val is not newval,methname+' returned self on a mutable object')class FixedStringTest(test.string_tests.BaseTest):def fixtype(self, obj):if isinstance(obj, str):return obj.encode("utf-8")return super(FixedStringTest, self).fixtype(obj)# Currently the bytes containment testing uses a single integer# value. This may not be the final design, but until then the# bytes section with in a bytes containment not validdef test_contains(self):passdef test_expandtabs(self):passdef test_upper(self):passdef test_lower(self):passdef test_hash(self):# XXX check this outpassclass ByteArrayAsStringTest(FixedStringTest):type2test = bytearrayclass ByteArraySubclass(bytearray):passclass ByteArraySubclassTest(unittest.TestCase):def test_basic(self):self.assert_(issubclass(ByteArraySubclass, bytearray))self.assert_(isinstance(ByteArraySubclass(), bytearray))a, b = b"abcd", b"efgh"_a, _b = ByteArraySubclass(a), ByteArraySubclass(b)# test comparison operators with subclass instancesself.assert_(_a == _a)self.assert_(_a != _b)self.assert_(_a < _b)self.assert_(_a <= _b)self.assert_(_b >= _a)self.assert_(_b > _a)self.assert_(_a is not a)# test concat of subclass instancesself.assertEqual(a + b, _a + _b)self.assertEqual(a + b, a + _b)self.assertEqual(a + b, _a + b)# test repeatself.assert_(a*5 == _a*5)def test_join(self):# Make sure join returns a NEW object for single item sequences# involving a subclass.# Make sure that it is of the appropriate type.s1 = ByteArraySubclass(b"abcd")s2 = bytearray().join([s1])self.assert_(s1 is not s2)self.assert_(type(s2) is bytearray, type(s2))# Test reverse, calling join on subclasss3 = s1.join([b"abcd"])self.assert_(type(s3) is bytearray)def test_pickle(self):a = ByteArraySubclass(b"abcd")a.x = 10a.y = ByteArraySubclass(b"efgh")for proto in range(pickle.HIGHEST_PROTOCOL + 1):b = pickle.loads(pickle.dumps(a, proto))self.assertNotEqual(id(a), id(b))self.assertEqual(a, b)self.assertEqual(a.x, b.x)self.assertEqual(a.y, b.y)self.assertEqual(type(a), type(b))self.assertEqual(type(a.y), type(b.y))def test_copy(self):a = ByteArraySubclass(b"abcd")a.x = 10a.y = ByteArraySubclass(b"efgh")for copy_method in (copy.copy, copy.deepcopy):b = copy_method(a)self.assertNotEqual(id(a), id(b))self.assertEqual(a, b)self.assertEqual(a.x, b.x)self.assertEqual(a.y, b.y)self.assertEqual(type(a), type(b))self.assertEqual(type(a.y), type(b.y))def test_init_override(self):class subclass(bytearray):def __init__(self, newarg=1, *args, **kwargs):bytearray.__init__(self, *args, **kwargs)x = subclass(4, source=b"abcd")self.assertEqual(x, b"abcd")x = subclass(newarg=4, source=b"abcd")self.assertEqual(x, b"abcd")def test_main():#test.test_support.run_unittest(BytesTest)#test.test_support.run_unittest(AssortedBytesTest)#test.test_support.run_unittest(BytesAsStringTest)test.test_support.run_unittest(ByteArrayTest,ByteArrayAsStringTest,ByteArraySubclassTest,BytearrayPEP3137Test)if __name__ == "__main__":test_main()
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