| """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 latter |
| should be modernized). |
| """ |
| |
| import os |
| import re |
| import sys |
| import copy |
| import pickle |
| import tempfile |
| import unittest |
| import warnings |
| import test.support |
| import test.string_tests |
| import test.buffer_tests |
| |
| class Indexable: |
| def __init__(self, value=0): |
| self.value = value |
| def __index__(self): |
| return self.value |
| |
| |
| class BaseBytesTest(unittest.TestCase): |
| |
| def setUp(self): |
| self.warning_filters = warnings.filters[:] |
| |
| def tearDown(self): |
| warnings.filters = self.warning_filters |
| |
| def 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.maxsize]) |
| self.assertRaises(IndexError, lambda: b[sys.maxsize+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.maxsize]) |
| self.assertRaises(IndexError, lambda: b[-sys.maxsize-1]) |
| self.assertRaises(IndexError, lambda: b[-sys.maxsize-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 |
| 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.maxsize]) |
| self.assertRaises(ValueError, self.type2test, [-sys.maxsize-1]) |
| self.assertRaises(ValueError, self.type2test, [-sys.maxsize-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.maxsize]) |
| self.assertRaises(ValueError, self.type2test, [sys.maxsize+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 sizes |
| self.assertEqual(self.type2test(b"\0a\0b\0c") == "abc", False) |
| self.assertEqual(self.type2test(b"\0\0\0a\0\0\0b\0\0\0c") == "abc", False) |
| self.assertEqual(self.type2test(b"a\0b\0c\0") == "abc", False) |
| self.assertEqual(self.type2test(b"a\0\0\0b\0\0\0c\0\0\0") == "abc", False) |
| self.assertEqual(self.type2test() == str(), False) |
| self.assertEqual(self.type2test() != str(), 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 = "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 = "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 = "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 + "def") |
| self.assertRaises(TypeError, lambda: "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: "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(''), self.type2test()) |
| b = bytearray([0x1a, 0x2b, 0x30]) |
| self.assertEquals(self.type2test.fromhex('1a2B30'), b) |
| self.assertEquals(self.type2test.fromhex(' 1A 2B 30 '), b) |
| self.assertEquals(self.type2test.fromhex('0000'), b'\0\0') |
| self.assertRaises(TypeError, self.type2test.fromhex, b'1B') |
| self.assertRaises(ValueError, self.type2test.fromhex, 'a') |
| self.assertRaises(ValueError, self.type2test.fromhex, 'rt') |
| self.assertRaises(ValueError, self.type2test.fromhex, '1a b cd') |
| self.assertRaises(ValueError, self.type2test.fromhex, '\x00') |
| self.assertRaises(ValueError, self.type2test.fromhex, '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 rigorous |
| b = 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, ' ') |
| |
| 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, ' ') |
| |
| 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): |
| for b in b"", b"a", b"abc", b"\xffab\x80", b"\0\0\377\0\0": |
| 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 test_strip_bytearray(self): |
| self.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, 'b') |
| self.assertRaises(TypeError, self.type2test(b'abc').lstrip, 'b') |
| self.assertRaises(TypeError, self.type2test(b'abc').rstrip, 'b') |
| |
| def test_ord(self): |
| b = self.type2test(b'\0A\x7f\x80\xff') |
| self.assertEqual([ord(b[i:i+1]) for i in range(len(b))], |
| [0, 65, 127, 128, 255]) |
| |
| |
| class BytesTest(BaseBytesTest): |
| type2test = bytes |
| |
| def test_buffer_is_readonly(self): |
| with open(sys.stdin.fileno(), "rb", buffering=0) as f: |
| self.assertRaises(TypeError, f.readinto, b"") |
| |
| |
| class ByteArrayTest(BaseBytesTest): |
| type2test = bytearray |
| |
| def test_nohash(self): |
| self.assertRaises(TypeError, hash, bytearray()) |
| |
| def test_bytearray_api(self): |
| short_sample = b"Hello world\n" |
| sample = short_sample + b"\0"*(20 - len(short_sample)) |
| tfn = tempfile.mktemp() |
| try: |
| # Prepare |
| with open(tfn, "wb") as f: |
| f.write(short_sample) |
| # Test readinto |
| with open(tfn, "rb") as f: |
| b = bytearray(20) |
| n = f.readinto(b) |
| self.assertEqual(n, len(short_sample)) |
| self.assertEqual(list(b), list(sample)) |
| # Test writing in binary mode |
| with 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 test |
| finally: |
| try: |
| os.remove(tfn) |
| except os.error: |
| pass |
| |
| def 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 items |
| b.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] = 100 |
| self.assertEqual(b, bytearray([1, 100, 3])) |
| b[-1] = 200 |
| self.assertEqual(b, bytearray([1, 100, 200])) |
| b[0] = Indexable(10) |
| self.assertEqual(b, bytearray([10, 100, 200])) |
| try: |
| b[3] = 0 |
| self.fail("Didn't raise IndexError") |
| except IndexError: |
| pass |
| try: |
| b[-10] = 0 |
| self.fail("Didn't raise IndexError") |
| except IndexError: |
| pass |
| try: |
| b[0] = 256 |
| self.fail("Didn't raise ValueError") |
| except ValueError: |
| pass |
| try: |
| b[0] = Indexable(-1) |
| self.fail("Didn't raise ValueError") |
| except ValueError: |
| pass |
| try: |
| b[0] = None |
| self.fail("Didn't raise TypeError") |
| except TypeError: |
| pass |
| |
| def 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 0 |
| for 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] = data |
| b[start:stop:step] = data |
| self.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:] = b |
| self.assertEqual(b, bytearray(list(range(8)) + list(range(256)))) |
| |
| def test_iconcat(self): |
| b = bytearray(b"abc") |
| b1 = b |
| b += 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 += "" |
| except TypeError: |
| pass |
| else: |
| self.fail("bytes += unicode didn't raise TypeError") |
| |
| def test_irepeat(self): |
| b = bytearray(b"abc") |
| b1 = b |
| b *= 3 |
| self.assertEqual(b, b"abcabcabc") |
| self.assertEqual(b, b1) |
| self.failUnless(b is b1) |
| |
| def test_irepeat_1char(self): |
| b = bytearray(b"x") |
| b1 = b |
| b *= 100 |
| self.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(int, orig * 25)) |
| a.extend(int(x) for x in orig * 25) |
| self.assertEqual(a, orig * 50) |
| self.assertEqual(a[-5:], orig) |
| a = bytearray(b'') |
| a.extend(iter(map(int, orig * 50))) |
| self.assertEqual(a, orig * 50) |
| self.assertEqual(a[-5:], orig) |
| a = bytearray(b'') |
| a.extend(list(map(int, 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('e')) |
| # remove first and last |
| b.remove(ord('o')) |
| b.remove(ord('h')) |
| self.assertEqual(b, b'e') |
| self.assertRaises(TypeError, lambda: b.remove(b'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(b'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') |
| self.assertRaises(TypeError, lambda: b.insert(0, b'1')) |
| b = bytearray() |
| b.insert(0, Indexable(ord('A'))) |
| self.assertEqual(b, b'A') |
| |
| 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 rpartition |
| b, 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"") |
| |
| |
| 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_filters |
| |
| def 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\x00\000\200", "\xaa\x00\000\200"), |
| (br"\xaa\x00\000\200", r"\xaa\x00\000\200"), |
| ] |
| 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' |
| 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') |
| |
| 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']) |
| |
| def test_return_self(self): |
| # bytearray.replace must always return a new bytearray |
| b = bytearray() |
| self.failIf(b.replace(b'', b'') is 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().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 valid |
| def test_contains(self): |
| pass |
| def test_expandtabs(self): |
| pass |
| def test_upper(self): |
| pass |
| def test_lower(self): |
| pass |
| |
| class ByteArrayAsStringTest(FixedStringTest): |
| type2test = bytearray |
| |
| class BytesAsStringTest(FixedStringTest): |
| type2test = bytes |
| |
| |
| class ByteArraySubclass(bytearray): |
| pass |
| |
| class 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 instances |
| self.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 instances |
| self.assertEqual(a + b, _a + _b) |
| self.assertEqual(a + b, a + _b) |
| self.assertEqual(a + b, _a + b) |
| |
| # test repeat |
| self.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 subclass |
| s3 = s1.join([b"abcd"]) |
| self.assert_(type(s3) is bytearray) |
| |
| def test_pickle(self): |
| a = ByteArraySubclass(b"abcd") |
| a.x = 10 |
| a.y = ByteArraySubclass(b"efgh") |
| for proto in range(pickle.HIGHEST_PROTOCOL): |
| 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 = 10 |
| a.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.support.run_unittest(BytesTest) |
| test.support.run_unittest(ByteArrayTest) |
| test.support.run_unittest(AssortedBytesTest) |
| test.support.run_unittest(BytesAsStringTest) |
| test.support.run_unittest(ByteArrayAsStringTest) |
| test.support.run_unittest(ByteArraySubclassTest) |
| test.support.run_unittest(BytearrayPEP3137Test) |
| |
| if __name__ == "__main__": |
| test_main() |