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-rw-r--r--Lib/test/test_bytes.py982
1 files changed, 982 insertions, 0 deletions
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
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+++ b/Lib/test/test_bytes.py
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+"""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.test_support
+import test.string_tests
+import test.buffer_tests
+
+
+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.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):
+ class C:
+ def __init__(self, i=0):
+ self.i = i
+ def __index__(self):
+ return self.i
+ b = self.type2test([C(), C(1), C(254), C(255)])
+ self.assertEqual(list(b), [0, 1, 254, 255])
+ self.assertRaises(ValueError, bytearray, [C(-1)])
+ self.assertRaises(ValueError, bytearray, [C(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.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 sizes
+ self.assertEqual(self.type2test(b"\0a\0b\0c") == u"abc", False)
+ self.assertEqual(self.type2test(b"\0\0\0a\0\0\0b\0\0\0c") == u"abc", False)
+ self.assertEqual(self.type2test(b"a\0b\0c\0") == u"abc", False)
+ self.assertEqual(self.type2test(b"a\0\0\0b\0\0\0c\0\0\0") == 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.maxint)
+
+ 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\0')
+ self.assertRaises(TypeError, self.type2test.fromhex, b'1B')
+ 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 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, 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):
+ 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 XXXtest_strip_bytearray(self):
+ # XXX memoryview not available
+ 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, 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'\0A\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 = 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))
+ # Python 2.x
+ b_sample = (ord(s) for s in sample)
+ self.assertEqual(list(b), list(b_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]))
+ class C:
+ def __init__(self, i=0):
+ self.i = i
+ def __index__(self):
+ return self.i
+ b[0] = C(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] = C(-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 += u""
+ 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(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)
+
+ 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 last
+ b.remove(ord('o'))
+ b.remove(ord('h'))
+ self.assertEqual(b, b'e')
+ self.assertRaises(TypeError, lambda: b.remove(u'e'))
+
+ 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'))
+
+ 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'))
+
+ 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'])
+
+ # 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 valid
+ def test_contains(self):
+ pass
+ def test_expandtabs(self):
+ pass
+ def test_upper(self):
+ pass
+ def test_lower(self):
+ pass
+ def test_hash(self):
+ # XXX check this out
+ pass
+
+
+class ByteArrayAsStringTest(FixedStringTest):
+ type2test = bytearray
+
+
+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.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()
generated by cgit v0.12 at 2025-11-04 04:07:39 (GMT)