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Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
"""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 functools
import pickle
import tempfile
import unittest
import test.test_support
import test.string_tests
import test.buffer_tests
if sys.flags.bytes_warning:
def check_bytes_warnings(func):
@functools.wraps(func)
def wrapper(*args, **kw):
with test.test_support.check_warnings(('', BytesWarning)):
return func(*args, **kw)
return wrapper
else:
# no-op
def check_bytes_warnings(func):
return func
class Indexable:
def __init__(self, value=0):
self.value = value
def __index__(self):
return self.value
class BaseBytesTest(unittest.TestCase):
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):
b = self.type2test([Indexable(), Indexable(1), Indexable(254),
Indexable(255)])
self.assertEqual(list(b), [0, 1, 254, 255])
self.assertRaises(ValueError, self.type2test, [Indexable(-1)])
self.assertRaises(ValueError, self.type2test, [Indexable(256)])
def test_from_ssize(self):
self.assertEqual(self.type2test(0), b'')
self.assertEqual(self.type2test(1), b'\x00')
self.assertEqual(self.type2test(5), b'\x00\x00\x00\x00\x00')
self.assertRaises(ValueError, self.type2test, -1)
self.assertEqual(self.type2test('0', 'ascii'), b'0')
self.assertEqual(self.type2test(b'0'), b'0')
self.assertRaises(OverflowError, self.type2test, sys.maxsize + 1)
def test_constructor_type_errors(self):
self.assertRaises(TypeError, self.type2test, 0.0)
class C:
pass
# allowed in 2.x
#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.assertTrue(b2 != b3)
self.assertTrue(b1 <= b2)
self.assertTrue(b1 <= b3)
self.assertTrue(b1 < b3)
self.assertTrue(b1 >= b2)
self.assertTrue(b3 >= b2)
self.assertTrue(b3 > b2)
self.assertFalse(b1 != b2)
self.assertFalse(b2 == b3)
self.assertFalse(b1 > b2)
self.assertFalse(b1 > b3)
self.assertFalse(b1 >= b3)
self.assertFalse(b1 < b2)
self.assertFalse(b3 < b2)
self.assertFalse(b3 <= b2)
@check_bytes_warnings
def test_compare_to_str(self):
# 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]))
#XXX: Jython doesn't support codepoints outside of the UTF-16 range even at
# parse time. Maybe someday we might push the error off to later, but for
# now I'm just commenting this whole test out.
# See http://bugs.jython.org/issue1836 for more.
# 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")
self.assertEqual(b.decode(errors="ignore", encoding="utf8"),
"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.assertIn(ord('a'), b)
self.assertIn(int(ord('a')), b)
self.assertNotIn(200, 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.assertIn(f(b""), b)
self.assertIn(f(b"a"), b)
self.assertIn(f(b"b"), b)
self.assertIn(f(b"c"), b)
self.assertIn(f(b"ab"), b)
self.assertIn(f(b"bc"), b)
self.assertIn(f(b"abc"), b)
self.assertNotIn(f(b"ac"), b)
self.assertNotIn(f(b"d"), b)
self.assertNotIn(f(b"dab"), b)
self.assertNotIn(f(b"abd"), b)
def test_fromhex(self):
self.assertRaises(TypeError, self.type2test.fromhex)
self.assertRaises(TypeError, self.type2test.fromhex, 1)
self.assertEqual(self.type2test.fromhex(u''), self.type2test())
b = bytearray([0x1a, 0x2b, 0x30, 0xca, 0xfe, 0xba, 0xbe]) # challenging signs
self.assertEqual(self.type2test.fromhex(u'1a2B30CafEBabe'), b)
self.assertEqual(self.type2test.fromhex(u' 1A 2B 30 CafeBabe '), b)
self.assertEqual(self.type2test.fromhex(u'0000'), b'\0\0')
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_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)
if not test.test_support.is_jython:
self.assertEqual(b.split(), [b])
else:
# \x1c .. \x1f are whitespace Jython (which follows Java)
self.assertEqual(b.split(), [b'a', b'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_split_unicodewhitespace(self):
b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F")
if not test.test_support.is_jython:
self.assertEqual(b.split(), [b'\x1c\x1d\x1e\x1f'])
else:
# \x1c .. \x1f are whitespace Jython
self.assertEqual(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, u' ')
def test_rsplit_unicodewhitespace(self):
b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F")
if not test.test_support.is_jython:
self.assertEqual(b.rsplit(), [b'\x1c\x1d\x1e\x1f'])
else:
# \x1c .. \x1f are whitespace Jython
self.assertEqual(b.rsplit(), [])
def test_partition(self):
b = self.type2test(b'mississippi')
self.assertEqual(b.partition(b'ss'), (b'mi', b'ss', b'issippi'))
self.assertEqual(b.partition(b'w'), (b'mississippi', b'', b''))
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''))
self.assertEqual(b.rpartition(b'w'), (b'', b'', b'mississippi'))
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\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, 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])
def test_none_arguments(self):
# issue 11828
b = self.type2test(b'hello')
l = self.type2test(b'l')
h = self.type2test(b'h')
x = self.type2test(b'x')
o = self.type2test(b'o')
self.assertEqual(2, b.find(l, None))
self.assertEqual(3, b.find(l, -2, None))
self.assertEqual(2, b.find(l, None, -2))
self.assertEqual(0, b.find(h, None, None))
self.assertEqual(3, b.rfind(l, None))
self.assertEqual(3, b.rfind(l, -2, None))
self.assertEqual(2, b.rfind(l, None, -2))
self.assertEqual(0, b.rfind(h, None, None))
self.assertEqual(2, b.index(l, None))
self.assertEqual(3, b.index(l, -2, None))
self.assertEqual(2, b.index(l, None, -2))
self.assertEqual(0, b.index(h, None, None))
self.assertEqual(3, b.rindex(l, None))
self.assertEqual(3, b.rindex(l, -2, None))
self.assertEqual(2, b.rindex(l, None, -2))
self.assertEqual(0, b.rindex(h, None, None))
self.assertEqual(2, b.count(l, None))
self.assertEqual(1, b.count(l, -2, None))
self.assertEqual(1, b.count(l, None, -2))
self.assertEqual(0, b.count(x, None, None))
self.assertEqual(True, b.endswith(o, None))
self.assertEqual(True, b.endswith(o, -2, None))
self.assertEqual(True, b.endswith(l, None, -2))
self.assertEqual(False, b.endswith(x, None, None))
self.assertEqual(True, b.startswith(h, None))
self.assertEqual(True, b.startswith(l, -2, None))
self.assertEqual(True, b.startswith(h, None, -2))
self.assertEqual(False, b.startswith(x, None, None))
def test_find_etc_raise_correct_error_messages(self):
# issue 11828
b = self.type2test(b'hello')
x = self.type2test(b'x')
self.assertRaisesRegexp(TypeError, r'\bfind\b', b.find,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\brfind\b', b.rfind,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bindex\b', b.index,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\brindex\b', b.rindex,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bcount\b', b.count,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bstartswith\b', b.startswith,
x, None, None, None)
self.assertRaisesRegexp(TypeError, r'\bendswith\b', b.endswith,
x, None, None, None)
def test_translate(self):
# adapted from AssortedBytesTest.test_translate
b = self.type2test(b'hello')
rosetta = self.type2test().join(map(chr,range(256)))
rosetta[ord('o')] = ord('e')
c = b.translate(rosetta, b'l')
self.assertEqual(b, b'hello')
self.assertEqual(c, b'hee')
c = b.translate(None, b'e')
self.assertEqual(c, b'hllo')
c = b.translate(None, b'the larch')
self.assertEqual(c, b'o')
stone = self.type2test(''.join(map(chr,range(1,256))))
self.assertRaises(ValueError, b.translate, stone, b'short')
self.assertRaises(TypeError, b.translate, rosetta, None)
self.assertRaises(TypeError, b.translate, None, None)
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]))
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<<333, -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.assertEqual(b, bytearray(L))
del L[start:stop:step]
del b[start:stop:step]
self.assertEqual(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.assertTrue(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.assertTrue(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.assertTrue(b is b1)
def test_alloc(self):
b = bytearray()
alloc = b.__alloc__()
self.assertTrue(alloc >= 0)
seq = [alloc]
for i in range(100):
b += b"x"
alloc = b.__alloc__()
self.assertTrue(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 last
b.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(IndexError, lambda: bytearray().pop())
# test for issue #6846
self.assertEqual(bytearray(b'\xff').pop(), 0xff)
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.x
#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.assertTrue(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.assertTrue(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"")
def test_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.assertEqual(b, orig)
self.assertRaises(BufferError, resize, 9)
self.assertEqual(b, orig)
self.assertRaises(BufferError, resize, 0)
self.assertEqual(b, orig)
# Other operations implying resize
self.assertRaises(BufferError, b.pop, 0)
self.assertEqual(b, orig)
self.assertRaises(BufferError, b.remove, b[1])
self.assertEqual(b, orig)
def delitem():
del b[1]
self.assertRaises(BufferError, delitem)
self.assertEqual(b, orig)
# deleting a non-contiguous slice
def delslice():
b[1:-1:2] = b""
self.assertRaises(BufferError, delslice)
self.assertEqual(b, orig)
if test.test_support.is_jython:
# Show that releasing v releases the bytearray for size change
v.release()
b.pop()
def test_empty_bytearray(self):
# Issue #7561: operations on empty bytearrays could crash in many
# situations, due to a fragile implementation of the
# PyByteArray_AS_STRING() C macro.
self.assertRaises(ValueError, int, bytearray(b''))
class AssortedBytesTest(unittest.TestCase):
#
# Test various combinations of bytes and bytearray
#
@check_bytes_warnings
def test_repr_str(self):
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.assertIsNotNone(bytearray.__doc__)
self.assertTrue(bytearray.__doc__.startswith("bytearray("), bytearray.__doc__)
self.assertIsNotNone(bytes.__doc__)
self.assertTrue(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))
@check_bytes_warnings
def test_to_str(self):
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'
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')
for expr in ('val.split()[0]', 'val.rsplit()[0]',
'val.partition(".")[0]', 'val.rpartition(".")[2]',
'val.splitlines()[0]', 'val.replace("", "")'):
newval = eval(expr)
self.assertEqual(val, newval)
self.assertTrue(val is not newval,
expr+' returned val 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.assertTrue(issubclass(ByteArraySubclass, bytearray))
self.assertIsInstance(ByteArraySubclass(), bytearray)
a, b = b"abcd", b"efgh"
_a, _b = ByteArraySubclass(a), ByteArraySubclass(b)
# test comparison operators with subclass instances
self.assertTrue(_a == _a)
self.assertTrue(_a != _b)
self.assertTrue(_a < _b)
self.assertTrue(_a <= _b)
self.assertTrue(_b >= _a)
self.assertTrue(_b > _a)
self.assertTrue(_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.assertTrue(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.assertTrue(s1 is not s2)
self.assertTrue(type(s2) is bytearray, type(s2))
# Test reverse, calling join on subclass
s3 = s1.join([b"abcd"])
self.assertTrue(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 + 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 = 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()