mirror of https://github.com/python/cpython
2141 lines
81 KiB
Python
2141 lines
81 KiB
Python
"""Unit tests for the bytes and bytearray types.
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XXX This is a mess. Common tests should be unified with string_tests.py (and
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the latter should be modernized).
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"""
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import array
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import os
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import re
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import sys
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import copy
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import functools
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import pickle
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import tempfile
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import textwrap
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import unittest
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import test.support
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from test.support import import_helper
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from test.support import warnings_helper
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import test.string_tests
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import test.list_tests
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from test.support import bigaddrspacetest, MAX_Py_ssize_t
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from test.support.script_helper import assert_python_failure
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if sys.flags.bytes_warning:
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def check_bytes_warnings(func):
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@functools.wraps(func)
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def wrapper(*args, **kw):
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with warnings_helper.check_warnings(('', BytesWarning)):
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return func(*args, **kw)
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return wrapper
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else:
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# no-op
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def check_bytes_warnings(func):
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return func
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class Indexable:
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def __init__(self, value=0):
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self.value = value
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def __index__(self):
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return self.value
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class BaseBytesTest:
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def assertTypedEqual(self, actual, expected):
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self.assertIs(type(actual), type(expected))
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self.assertEqual(actual, expected)
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def test_basics(self):
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b = self.type2test()
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self.assertEqual(type(b), self.type2test)
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self.assertEqual(b.__class__, self.type2test)
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def test_copy(self):
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a = self.type2test(b"abcd")
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for copy_method in (copy.copy, copy.deepcopy):
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b = copy_method(a)
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self.assertEqual(a, b)
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self.assertEqual(type(a), type(b))
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def test_empty_sequence(self):
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b = self.type2test()
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self.assertEqual(len(b), 0)
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self.assertRaises(IndexError, lambda: b[0])
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self.assertRaises(IndexError, lambda: b[1])
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self.assertRaises(IndexError, lambda: b[sys.maxsize])
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self.assertRaises(IndexError, lambda: b[sys.maxsize+1])
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self.assertRaises(IndexError, lambda: b[10**100])
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self.assertRaises(IndexError, lambda: b[-1])
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self.assertRaises(IndexError, lambda: b[-2])
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self.assertRaises(IndexError, lambda: b[-sys.maxsize])
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self.assertRaises(IndexError, lambda: b[-sys.maxsize-1])
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self.assertRaises(IndexError, lambda: b[-sys.maxsize-2])
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self.assertRaises(IndexError, lambda: b[-10**100])
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def test_from_iterable(self):
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b = self.type2test(range(256))
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self.assertEqual(len(b), 256)
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self.assertEqual(list(b), list(range(256)))
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# Non-sequence iterable.
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b = self.type2test({42})
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self.assertEqual(b, b"*")
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b = self.type2test({43, 45})
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self.assertIn(tuple(b), {(43, 45), (45, 43)})
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# Iterator that has a __length_hint__.
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b = self.type2test(iter(range(256)))
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self.assertEqual(len(b), 256)
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self.assertEqual(list(b), list(range(256)))
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# Iterator that doesn't have a __length_hint__.
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b = self.type2test(i for i in range(256) if i % 2)
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self.assertEqual(len(b), 128)
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self.assertEqual(list(b), list(range(256))[1::2])
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# Sequence without __iter__.
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class S:
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def __getitem__(self, i):
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return (1, 2, 3)[i]
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b = self.type2test(S())
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self.assertEqual(b, b"\x01\x02\x03")
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def test_from_tuple(self):
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# There is a special case for tuples.
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b = self.type2test(tuple(range(256)))
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self.assertEqual(len(b), 256)
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self.assertEqual(list(b), list(range(256)))
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b = self.type2test((1, 2, 3))
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self.assertEqual(b, b"\x01\x02\x03")
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def test_from_list(self):
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# There is a special case for lists.
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b = self.type2test(list(range(256)))
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self.assertEqual(len(b), 256)
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self.assertEqual(list(b), list(range(256)))
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b = self.type2test([1, 2, 3])
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self.assertEqual(b, b"\x01\x02\x03")
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def test_from_mutating_list(self):
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# Issue #34973: Crash in bytes constructor with mutating list.
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class X:
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def __index__(self):
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a.clear()
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return 42
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a = [X(), X()]
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self.assertEqual(bytes(a), b'*')
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class Y:
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def __index__(self):
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if len(a) < 1000:
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a.append(self)
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return 42
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a = [Y()]
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self.assertEqual(bytes(a), b'*' * 1000) # should not crash
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def test_from_index(self):
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b = self.type2test([Indexable(), Indexable(1), Indexable(254),
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Indexable(255)])
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self.assertEqual(list(b), [0, 1, 254, 255])
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self.assertRaises(ValueError, self.type2test, [Indexable(-1)])
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self.assertRaises(ValueError, self.type2test, [Indexable(256)])
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def test_from_buffer(self):
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a = self.type2test(array.array('B', [1, 2, 3]))
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self.assertEqual(a, b"\x01\x02\x03")
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a = self.type2test(b"\x01\x02\x03")
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self.assertEqual(a, b"\x01\x02\x03")
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# Issues #29159 and #34974.
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# Fallback when __index__ raises a TypeError
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class B(bytes):
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def __index__(self):
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raise TypeError
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self.assertEqual(self.type2test(B(b"foobar")), b"foobar")
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def test_from_ssize(self):
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self.assertEqual(self.type2test(0), b'')
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self.assertEqual(self.type2test(1), b'\x00')
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self.assertEqual(self.type2test(5), b'\x00\x00\x00\x00\x00')
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self.assertRaises(ValueError, self.type2test, -1)
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self.assertEqual(self.type2test('0', 'ascii'), b'0')
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self.assertEqual(self.type2test(b'0'), b'0')
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self.assertRaises(OverflowError, self.type2test, sys.maxsize + 1)
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def test_constructor_type_errors(self):
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self.assertRaises(TypeError, self.type2test, 0.0)
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class C:
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pass
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self.assertRaises(TypeError, self.type2test, ["0"])
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self.assertRaises(TypeError, self.type2test, [0.0])
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self.assertRaises(TypeError, self.type2test, [None])
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self.assertRaises(TypeError, self.type2test, [C()])
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self.assertRaises(TypeError, self.type2test, encoding='ascii')
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self.assertRaises(TypeError, self.type2test, errors='ignore')
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self.assertRaises(TypeError, self.type2test, 0, 'ascii')
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self.assertRaises(TypeError, self.type2test, b'', 'ascii')
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self.assertRaises(TypeError, self.type2test, 0, errors='ignore')
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self.assertRaises(TypeError, self.type2test, b'', errors='ignore')
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self.assertRaises(TypeError, self.type2test, '')
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self.assertRaises(TypeError, self.type2test, '', errors='ignore')
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self.assertRaises(TypeError, self.type2test, '', b'ascii')
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self.assertRaises(TypeError, self.type2test, '', 'ascii', b'ignore')
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def test_constructor_value_errors(self):
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self.assertRaises(ValueError, self.type2test, [-1])
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self.assertRaises(ValueError, self.type2test, [-sys.maxsize])
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self.assertRaises(ValueError, self.type2test, [-sys.maxsize-1])
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self.assertRaises(ValueError, self.type2test, [-sys.maxsize-2])
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self.assertRaises(ValueError, self.type2test, [-10**100])
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self.assertRaises(ValueError, self.type2test, [256])
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self.assertRaises(ValueError, self.type2test, [257])
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self.assertRaises(ValueError, self.type2test, [sys.maxsize])
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self.assertRaises(ValueError, self.type2test, [sys.maxsize+1])
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self.assertRaises(ValueError, self.type2test, [10**100])
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@bigaddrspacetest
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def test_constructor_overflow(self):
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size = MAX_Py_ssize_t
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self.assertRaises((OverflowError, MemoryError), self.type2test, size)
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try:
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# Should either pass or raise an error (e.g. on debug builds with
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# additional malloc() overhead), but shouldn't crash.
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bytearray(size - 4)
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except (OverflowError, MemoryError):
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pass
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def test_constructor_exceptions(self):
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# Issue #34974: bytes and bytearray constructors replace unexpected
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# exceptions.
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class BadInt:
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def __index__(self):
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1/0
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self.assertRaises(ZeroDivisionError, self.type2test, BadInt())
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self.assertRaises(ZeroDivisionError, self.type2test, [BadInt()])
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class BadIterable:
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def __iter__(self):
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1/0
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self.assertRaises(ZeroDivisionError, self.type2test, BadIterable())
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def test_compare(self):
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b1 = self.type2test([1, 2, 3])
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b2 = self.type2test([1, 2, 3])
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b3 = self.type2test([1, 3])
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self.assertEqual(b1, b2)
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self.assertTrue(b2 != b3)
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self.assertTrue(b1 <= b2)
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self.assertTrue(b1 <= b3)
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self.assertTrue(b1 < b3)
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self.assertTrue(b1 >= b2)
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self.assertTrue(b3 >= b2)
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self.assertTrue(b3 > b2)
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self.assertFalse(b1 != b2)
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self.assertFalse(b2 == b3)
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self.assertFalse(b1 > b2)
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self.assertFalse(b1 > b3)
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self.assertFalse(b1 >= b3)
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self.assertFalse(b1 < b2)
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self.assertFalse(b3 < b2)
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self.assertFalse(b3 <= b2)
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@check_bytes_warnings
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def test_compare_to_str(self):
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# Byte comparisons with unicode should always fail!
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# Test this for all expected byte orders and Unicode character
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# sizes.
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self.assertEqual(self.type2test(b"\0a\0b\0c") == "abc", False)
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self.assertEqual(self.type2test(b"\0\0\0a\0\0\0b\0\0\0c") == "abc",
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False)
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self.assertEqual(self.type2test(b"a\0b\0c\0") == "abc", False)
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self.assertEqual(self.type2test(b"a\0\0\0b\0\0\0c\0\0\0") == "abc",
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False)
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self.assertEqual(self.type2test() == str(), False)
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self.assertEqual(self.type2test() != str(), True)
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def test_reversed(self):
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input = list(map(ord, "Hello"))
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b = self.type2test(input)
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output = list(reversed(b))
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input.reverse()
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self.assertEqual(output, input)
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def test_getslice(self):
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def by(s):
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return self.type2test(map(ord, s))
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b = by("Hello, world")
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self.assertEqual(b[:5], by("Hello"))
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self.assertEqual(b[1:5], by("ello"))
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self.assertEqual(b[5:7], by(", "))
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self.assertEqual(b[7:], by("world"))
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self.assertEqual(b[7:12], by("world"))
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self.assertEqual(b[7:100], by("world"))
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self.assertEqual(b[:-7], by("Hello"))
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self.assertEqual(b[-11:-7], by("ello"))
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self.assertEqual(b[-7:-5], by(", "))
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self.assertEqual(b[-5:], by("world"))
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self.assertEqual(b[-5:12], by("world"))
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self.assertEqual(b[-5:100], by("world"))
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self.assertEqual(b[-100:5], by("Hello"))
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def test_extended_getslice(self):
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# Test extended slicing by comparing with list slicing.
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L = list(range(255))
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b = self.type2test(L)
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indices = (0, None, 1, 3, 19, 100, sys.maxsize, -1, -2, -31, -100)
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for start in indices:
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for stop in indices:
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# Skip step 0 (invalid)
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for step in indices[1:]:
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self.assertEqual(b[start:stop:step], self.type2test(L[start:stop:step]))
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def test_encoding(self):
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sample = "Hello world\n\u1234\u5678\u9abc"
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for enc in ("utf-8", "utf-16"):
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b = self.type2test(sample, enc)
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self.assertEqual(b, self.type2test(sample.encode(enc)))
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self.assertRaises(UnicodeEncodeError, self.type2test, sample, "latin-1")
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b = self.type2test(sample, "latin-1", "ignore")
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self.assertEqual(b, self.type2test(sample[:-3], "utf-8"))
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def test_decode(self):
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sample = "Hello world\n\u1234\u5678\u9abc"
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for enc in ("utf-8", "utf-16"):
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b = self.type2test(sample, enc)
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self.assertEqual(b.decode(enc), sample)
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sample = "Hello world\n\x80\x81\xfe\xff"
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b = self.type2test(sample, "latin-1")
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self.assertRaises(UnicodeDecodeError, b.decode, "utf-8")
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self.assertEqual(b.decode("utf-8", "ignore"), "Hello world\n")
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self.assertEqual(b.decode(errors="ignore", encoding="utf-8"),
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"Hello world\n")
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# Default encoding is utf-8
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self.assertEqual(self.type2test(b'\xe2\x98\x83').decode(), '\u2603')
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def test_check_encoding_errors(self):
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# bpo-37388: bytes(str) and bytes.encode() must check encoding
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# and errors arguments in dev mode
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invalid = 'Boom, Shaka Laka, Boom!'
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encodings = ('ascii', 'utf8', 'latin1')
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code = textwrap.dedent(f'''
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import sys
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type2test = {self.type2test.__name__}
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encodings = {encodings!r}
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for data in ('', 'short string'):
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try:
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type2test(data, encoding={invalid!r})
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except LookupError:
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pass
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else:
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sys.exit(21)
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for encoding in encodings:
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try:
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type2test(data, encoding=encoding, errors={invalid!r})
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except LookupError:
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pass
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else:
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sys.exit(22)
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for data in (b'', b'short string'):
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data = type2test(data)
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print(repr(data))
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try:
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data.decode(encoding={invalid!r})
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except LookupError:
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sys.exit(10)
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else:
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sys.exit(23)
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try:
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data.decode(errors={invalid!r})
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except LookupError:
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pass
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else:
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sys.exit(24)
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for encoding in encodings:
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try:
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data.decode(encoding=encoding, errors={invalid!r})
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except LookupError:
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pass
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else:
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sys.exit(25)
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sys.exit(10)
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''')
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proc = assert_python_failure('-X', 'dev', '-c', code)
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self.assertEqual(proc.rc, 10, proc)
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def test_from_int(self):
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b = self.type2test(0)
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self.assertEqual(b, self.type2test())
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b = self.type2test(10)
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self.assertEqual(b, self.type2test([0]*10))
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b = self.type2test(10000)
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self.assertEqual(b, self.type2test([0]*10000))
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def test_concat(self):
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b1 = self.type2test(b"abc")
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b2 = self.type2test(b"def")
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self.assertEqual(b1 + b2, b"abcdef")
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self.assertEqual(b1 + bytes(b"def"), b"abcdef")
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self.assertEqual(bytes(b"def") + b1, b"defabc")
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self.assertRaises(TypeError, lambda: b1 + "def")
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self.assertRaises(TypeError, lambda: "abc" + b2)
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def test_repeat(self):
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for b in b"abc", self.type2test(b"abc"):
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self.assertEqual(b * 3, b"abcabcabc")
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self.assertEqual(b * 0, b"")
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self.assertEqual(b * -1, b"")
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self.assertRaises(TypeError, lambda: b * 3.14)
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self.assertRaises(TypeError, lambda: 3.14 * b)
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# XXX Shouldn't bytes and bytearray agree on what to raise?
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with self.assertRaises((OverflowError, MemoryError)):
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c = b * sys.maxsize
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with self.assertRaises((OverflowError, MemoryError)):
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b *= sys.maxsize
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def test_repeat_1char(self):
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self.assertEqual(self.type2test(b'x')*100, self.type2test([ord('x')]*100))
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def test_contains(self):
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b = self.type2test(b"abc")
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self.assertIn(ord('a'), b)
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self.assertIn(int(ord('a')), b)
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self.assertNotIn(200, b)
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self.assertRaises(ValueError, lambda: 300 in b)
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self.assertRaises(ValueError, lambda: -1 in b)
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self.assertRaises(ValueError, lambda: sys.maxsize+1 in b)
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self.assertRaises(TypeError, lambda: None in b)
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self.assertRaises(TypeError, lambda: float(ord('a')) in b)
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self.assertRaises(TypeError, lambda: "a" in b)
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for f in bytes, bytearray:
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self.assertIn(f(b""), b)
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self.assertIn(f(b"a"), b)
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self.assertIn(f(b"b"), b)
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self.assertIn(f(b"c"), b)
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self.assertIn(f(b"ab"), b)
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self.assertIn(f(b"bc"), b)
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self.assertIn(f(b"abc"), b)
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self.assertNotIn(f(b"ac"), b)
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self.assertNotIn(f(b"d"), b)
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self.assertNotIn(f(b"dab"), b)
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self.assertNotIn(f(b"abd"), b)
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def test_fromhex(self):
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self.assertRaises(TypeError, self.type2test.fromhex)
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self.assertRaises(TypeError, self.type2test.fromhex, 1)
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self.assertEqual(self.type2test.fromhex(''), self.type2test())
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b = bytearray([0x1a, 0x2b, 0x30])
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self.assertEqual(self.type2test.fromhex('1a2B30'), b)
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self.assertEqual(self.type2test.fromhex(' 1A 2B 30 '), b)
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# check that ASCII whitespace is ignored
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self.assertEqual(self.type2test.fromhex(' 1A\n2B\t30\v'), b)
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for c in "\x09\x0A\x0B\x0C\x0D\x20":
|
|
self.assertEqual(self.type2test.fromhex(c), self.type2test())
|
|
for c in "\x1C\x1D\x1E\x1F\x85\xa0\u2000\u2002\u2028":
|
|
self.assertRaises(ValueError, self.type2test.fromhex, c)
|
|
|
|
self.assertEqual(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')
|
|
|
|
for data, pos in (
|
|
# invalid first hexadecimal character
|
|
('12 x4 56', 3),
|
|
# invalid second hexadecimal character
|
|
('12 3x 56', 4),
|
|
# two invalid hexadecimal characters
|
|
('12 xy 56', 3),
|
|
# test non-ASCII string
|
|
('12 3\xff 56', 4),
|
|
):
|
|
with self.assertRaises(ValueError) as cm:
|
|
self.type2test.fromhex(data)
|
|
self.assertIn('at position %s' % pos, str(cm.exception))
|
|
|
|
def test_hex(self):
|
|
self.assertRaises(TypeError, self.type2test.hex)
|
|
self.assertRaises(TypeError, self.type2test.hex, 1)
|
|
self.assertEqual(self.type2test(b"").hex(), "")
|
|
self.assertEqual(bytearray([0x1a, 0x2b, 0x30]).hex(), '1a2b30')
|
|
self.assertEqual(self.type2test(b"\x1a\x2b\x30").hex(), '1a2b30')
|
|
self.assertEqual(memoryview(b"\x1a\x2b\x30").hex(), '1a2b30')
|
|
|
|
def test_hex_separator_basics(self):
|
|
three_bytes = self.type2test(b'\xb9\x01\xef')
|
|
self.assertEqual(three_bytes.hex(), 'b901ef')
|
|
with self.assertRaises(ValueError):
|
|
three_bytes.hex('')
|
|
with self.assertRaises(ValueError):
|
|
three_bytes.hex('xx')
|
|
self.assertEqual(three_bytes.hex(':', 0), 'b901ef')
|
|
with self.assertRaises(TypeError):
|
|
three_bytes.hex(None, 0)
|
|
with self.assertRaises(ValueError):
|
|
three_bytes.hex('\xff')
|
|
with self.assertRaises(ValueError):
|
|
three_bytes.hex(b'\xff')
|
|
with self.assertRaises(ValueError):
|
|
three_bytes.hex(b'\x80')
|
|
with self.assertRaises(ValueError):
|
|
three_bytes.hex(chr(0x100))
|
|
self.assertEqual(three_bytes.hex(':', 0), 'b901ef')
|
|
self.assertEqual(three_bytes.hex(b'\x00'), 'b9\x0001\x00ef')
|
|
self.assertEqual(three_bytes.hex('\x00'), 'b9\x0001\x00ef')
|
|
self.assertEqual(three_bytes.hex(b'\x7f'), 'b9\x7f01\x7fef')
|
|
self.assertEqual(three_bytes.hex('\x7f'), 'b9\x7f01\x7fef')
|
|
self.assertEqual(three_bytes.hex(':', 3), 'b901ef')
|
|
self.assertEqual(three_bytes.hex(':', 4), 'b901ef')
|
|
self.assertEqual(three_bytes.hex(':', -4), 'b901ef')
|
|
self.assertEqual(three_bytes.hex(':'), 'b9:01:ef')
|
|
self.assertEqual(three_bytes.hex(b'$'), 'b9$01$ef')
|
|
self.assertEqual(three_bytes.hex(':', 1), 'b9:01:ef')
|
|
self.assertEqual(three_bytes.hex(':', -1), 'b9:01:ef')
|
|
self.assertEqual(three_bytes.hex(':', 2), 'b9:01ef')
|
|
self.assertEqual(three_bytes.hex(':', 1), 'b9:01:ef')
|
|
self.assertEqual(three_bytes.hex('*', -2), 'b901*ef')
|
|
|
|
value = b'{s\005\000\000\000worldi\002\000\000\000s\005\000\000\000helloi\001\000\000\0000'
|
|
self.assertEqual(value.hex('.', 8), '7b7305000000776f.726c646902000000.730500000068656c.6c6f690100000030')
|
|
|
|
def test_hex_separator_five_bytes(self):
|
|
five_bytes = self.type2test(range(90,95))
|
|
self.assertEqual(five_bytes.hex(), '5a5b5c5d5e')
|
|
|
|
def test_hex_separator_six_bytes(self):
|
|
six_bytes = self.type2test(x*3 for x in range(1, 7))
|
|
self.assertEqual(six_bytes.hex(), '0306090c0f12')
|
|
self.assertEqual(six_bytes.hex('.', 1), '03.06.09.0c.0f.12')
|
|
self.assertEqual(six_bytes.hex(' ', 2), '0306 090c 0f12')
|
|
self.assertEqual(six_bytes.hex('-', 3), '030609-0c0f12')
|
|
self.assertEqual(six_bytes.hex(':', 4), '0306:090c0f12')
|
|
self.assertEqual(six_bytes.hex(':', 5), '03:06090c0f12')
|
|
self.assertEqual(six_bytes.hex(':', 6), '0306090c0f12')
|
|
self.assertEqual(six_bytes.hex(':', 95), '0306090c0f12')
|
|
self.assertEqual(six_bytes.hex('_', -3), '030609_0c0f12')
|
|
self.assertEqual(six_bytes.hex(':', -4), '0306090c:0f12')
|
|
self.assertEqual(six_bytes.hex(b'@', -5), '0306090c0f@12')
|
|
self.assertEqual(six_bytes.hex(':', -6), '0306090c0f12')
|
|
self.assertEqual(six_bytes.hex(' ', -95), '0306090c0f12')
|
|
|
|
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")
|
|
dot_join = self.type2test(b".:").join
|
|
self.assertEqual(dot_join([b"ab", b"cd"]), b"ab.:cd")
|
|
self.assertEqual(dot_join([memoryview(b"ab"), b"cd"]), b"ab.:cd")
|
|
self.assertEqual(dot_join([b"ab", memoryview(b"cd")]), b"ab.:cd")
|
|
self.assertEqual(dot_join([bytearray(b"ab"), b"cd"]), b"ab.:cd")
|
|
self.assertEqual(dot_join([b"ab", bytearray(b"cd")]), b"ab.:cd")
|
|
# Stress it with many items
|
|
seq = [b"abc"] * 100000
|
|
expected = b"abc" + b".:abc" * 99999
|
|
self.assertEqual(dot_join(seq), expected)
|
|
# Stress test with empty separator
|
|
seq = [b"abc"] * 100000
|
|
expected = b"abc" * 100000
|
|
self.assertEqual(self.type2test(b"").join(seq), expected)
|
|
self.assertRaises(TypeError, self.type2test(b" ").join, None)
|
|
# Error handling and cleanup when some item in the middle of the
|
|
# sequence has the wrong type.
|
|
with self.assertRaises(TypeError):
|
|
dot_join([bytearray(b"ab"), "cd", b"ef"])
|
|
with self.assertRaises(TypeError):
|
|
dot_join([memoryview(b"ab"), "cd", b"ef"])
|
|
|
|
def test_count(self):
|
|
b = self.type2test(b'mississippi')
|
|
i = 105
|
|
p = 112
|
|
w = 119
|
|
|
|
self.assertEqual(b.count(b'i'), 4)
|
|
self.assertEqual(b.count(b'ss'), 2)
|
|
self.assertEqual(b.count(b'w'), 0)
|
|
|
|
self.assertEqual(b.count(i), 4)
|
|
self.assertEqual(b.count(w), 0)
|
|
|
|
self.assertEqual(b.count(b'i', 6), 2)
|
|
self.assertEqual(b.count(b'p', 6), 2)
|
|
self.assertEqual(b.count(b'i', 1, 3), 1)
|
|
self.assertEqual(b.count(b'p', 7, 9), 1)
|
|
|
|
self.assertEqual(b.count(i, 6), 2)
|
|
self.assertEqual(b.count(p, 6), 2)
|
|
self.assertEqual(b.count(i, 1, 3), 1)
|
|
self.assertEqual(b.count(p, 7, 9), 1)
|
|
|
|
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"))
|
|
with self.assertRaises(TypeError) as cm:
|
|
b.startswith([b'h'])
|
|
exc = str(cm.exception)
|
|
self.assertIn('bytes', exc)
|
|
self.assertIn('tuple', exc)
|
|
|
|
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"))
|
|
with self.assertRaises(TypeError) as cm:
|
|
b.endswith([b'o'])
|
|
exc = str(cm.exception)
|
|
self.assertIn('bytes', exc)
|
|
self.assertIn('tuple', exc)
|
|
|
|
def test_find(self):
|
|
b = self.type2test(b'mississippi')
|
|
i = 105
|
|
w = 119
|
|
|
|
self.assertEqual(b.find(b'ss'), 2)
|
|
self.assertEqual(b.find(b'w'), -1)
|
|
self.assertEqual(b.find(b'mississippian'), -1)
|
|
|
|
self.assertEqual(b.find(i), 1)
|
|
self.assertEqual(b.find(w), -1)
|
|
|
|
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(i, 6), 7)
|
|
self.assertEqual(b.find(i, 1, 3), 1)
|
|
self.assertEqual(b.find(w, 1, 3), -1)
|
|
|
|
for index in (-1, 256, sys.maxsize + 1):
|
|
self.assertRaisesRegex(
|
|
ValueError, r'byte must be in range\(0, 256\)',
|
|
b.find, index)
|
|
|
|
def test_rfind(self):
|
|
b = self.type2test(b'mississippi')
|
|
i = 105
|
|
w = 119
|
|
|
|
self.assertEqual(b.rfind(b'ss'), 5)
|
|
self.assertEqual(b.rfind(b'w'), -1)
|
|
self.assertEqual(b.rfind(b'mississippian'), -1)
|
|
|
|
self.assertEqual(b.rfind(i), 10)
|
|
self.assertEqual(b.rfind(w), -1)
|
|
|
|
self.assertEqual(b.rfind(b'ss', 3), 5)
|
|
self.assertEqual(b.rfind(b'ss', 0, 6), 2)
|
|
|
|
self.assertEqual(b.rfind(i, 1, 3), 1)
|
|
self.assertEqual(b.rfind(i, 3, 9), 7)
|
|
self.assertEqual(b.rfind(w, 1, 3), -1)
|
|
|
|
def test_index(self):
|
|
b = self.type2test(b'mississippi')
|
|
i = 105
|
|
w = 119
|
|
|
|
self.assertEqual(b.index(b'ss'), 2)
|
|
self.assertRaises(ValueError, b.index, b'w')
|
|
self.assertRaises(ValueError, b.index, b'mississippian')
|
|
|
|
self.assertEqual(b.index(i), 1)
|
|
self.assertRaises(ValueError, b.index, w)
|
|
|
|
self.assertEqual(b.index(b'ss', 3), 5)
|
|
self.assertEqual(b.index(b'ss', 1, 7), 2)
|
|
self.assertRaises(ValueError, b.index, b'ss', 1, 3)
|
|
|
|
self.assertEqual(b.index(i, 6), 7)
|
|
self.assertEqual(b.index(i, 1, 3), 1)
|
|
self.assertRaises(ValueError, b.index, w, 1, 3)
|
|
|
|
def test_rindex(self):
|
|
b = self.type2test(b'mississippi')
|
|
i = 105
|
|
w = 119
|
|
|
|
self.assertEqual(b.rindex(b'ss'), 5)
|
|
self.assertRaises(ValueError, b.rindex, b'w')
|
|
self.assertRaises(ValueError, b.rindex, b'mississippian')
|
|
|
|
self.assertEqual(b.rindex(i), 10)
|
|
self.assertRaises(ValueError, b.rindex, w)
|
|
|
|
self.assertEqual(b.rindex(b'ss', 3), 5)
|
|
self.assertEqual(b.rindex(b'ss', 0, 6), 2)
|
|
|
|
self.assertEqual(b.rindex(i, 1, 3), 1)
|
|
self.assertEqual(b.rindex(i, 3, 9), 7)
|
|
self.assertRaises(ValueError, b.rindex, w, 1, 3)
|
|
|
|
def test_mod(self):
|
|
b = self.type2test(b'hello, %b!')
|
|
orig = b
|
|
b = b % b'world'
|
|
self.assertEqual(b, b'hello, world!')
|
|
self.assertEqual(orig, b'hello, %b!')
|
|
self.assertFalse(b is orig)
|
|
b = self.type2test(b'%s / 100 = %d%%')
|
|
a = b % (b'seventy-nine', 79)
|
|
self.assertEqual(a, b'seventy-nine / 100 = 79%')
|
|
self.assertIs(type(a), self.type2test)
|
|
# issue 29714
|
|
b = self.type2test(b'hello,\x00%b!')
|
|
b = b % b'world'
|
|
self.assertEqual(b, b'hello,\x00world!')
|
|
self.assertIs(type(b), self.type2test)
|
|
|
|
def check(fmt, vals, result):
|
|
b = self.type2test(fmt)
|
|
b = b % vals
|
|
self.assertEqual(b, result)
|
|
self.assertIs(type(b), self.type2test)
|
|
|
|
# A set of tests adapted from test_unicode:UnicodeTest.test_formatting
|
|
check(b'...%(foo)b...', {b'foo':b"abc"}, b'...abc...')
|
|
check(b'...%(f(o)o)b...', {b'f(o)o':b"abc", b'foo':b'bar'}, b'...abc...')
|
|
check(b'...%(foo)b...', {b'foo':b"abc",b'def':123}, b'...abc...')
|
|
check(b'%*b', (5, b'abc',), b' abc')
|
|
check(b'%*b', (-5, b'abc',), b'abc ')
|
|
check(b'%*.*b', (5, 2, b'abc',), b' ab')
|
|
check(b'%*.*b', (5, 3, b'abc',), b' abc')
|
|
check(b'%i %*.*b', (10, 5, 3, b'abc',), b'10 abc')
|
|
check(b'%i%b %*.*b', (10, b'3', 5, 3, b'abc',), b'103 abc')
|
|
check(b'%c', b'a', b'a')
|
|
|
|
def test_imod(self):
|
|
b = self.type2test(b'hello, %b!')
|
|
orig = b
|
|
b %= b'world'
|
|
self.assertEqual(b, b'hello, world!')
|
|
self.assertEqual(orig, b'hello, %b!')
|
|
self.assertFalse(b is orig)
|
|
b = self.type2test(b'%s / 100 = %d%%')
|
|
b %= (b'seventy-nine', 79)
|
|
self.assertEqual(b, b'seventy-nine / 100 = 79%')
|
|
self.assertIs(type(b), self.type2test)
|
|
# issue 29714
|
|
b = self.type2test(b'hello,\x00%b!')
|
|
b %= b'world'
|
|
self.assertEqual(b, b'hello,\x00world!')
|
|
self.assertIs(type(b), self.type2test)
|
|
|
|
def test_rmod(self):
|
|
with self.assertRaises(TypeError):
|
|
object() % self.type2test(b'abc')
|
|
self.assertIs(self.type2test(b'abc').__rmod__('%r'), NotImplemented)
|
|
|
|
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_replace_int_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b'a b').replace, 32, b'')
|
|
|
|
def test_split_string_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b'a b').split, ' ')
|
|
self.assertRaises(TypeError, self.type2test(b'a b').rsplit, ' ')
|
|
|
|
def test_split_int_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b'a b').split, 32)
|
|
self.assertRaises(TypeError, self.type2test(b'a b').rsplit, 32)
|
|
|
|
def test_split_unicodewhitespace(self):
|
|
for b in (b'a\x1Cb', b'a\x1Db', b'a\x1Eb', b'a\x1Fb'):
|
|
b = self.type2test(b)
|
|
self.assertEqual(b.split(), [b])
|
|
b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\x1C\x1D\x1E\x1F")
|
|
self.assertEqual(b.split(), [b'\x1c\x1d\x1e\x1f'])
|
|
|
|
def test_rsplit_unicodewhitespace(self):
|
|
b = self.type2test(b"\x09\x0A\x0B\x0C\x0D\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.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_partition_string_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b'a b').partition, ' ')
|
|
self.assertRaises(TypeError, self.type2test(b'a b').rpartition, ' ')
|
|
|
|
def test_partition_int_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b'a b').partition, 32)
|
|
self.assertRaises(TypeError, self.type2test(b'a b').rpartition, 32)
|
|
|
|
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_iterator_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":
|
|
it = itorg = iter(self.type2test(b))
|
|
data = list(self.type2test(b))
|
|
d = pickle.dumps(it, proto)
|
|
it = pickle.loads(d)
|
|
self.assertEqual(type(itorg), type(it))
|
|
self.assertEqual(list(it), data)
|
|
|
|
it = pickle.loads(d)
|
|
if not b:
|
|
continue
|
|
next(it)
|
|
d = pickle.dumps(it, proto)
|
|
it = pickle.loads(d)
|
|
self.assertEqual(list(it), data[1:])
|
|
|
|
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, 'ac')
|
|
self.assertRaises(TypeError, self.type2test(b'abc').lstrip, 'ac')
|
|
self.assertRaises(TypeError, self.type2test(b'abc').rstrip, 'ac')
|
|
|
|
def test_strip_int_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b' abc ').strip, 32)
|
|
self.assertRaises(TypeError, self.type2test(b' abc ').lstrip, 32)
|
|
self.assertRaises(TypeError, self.type2test(b' abc ').rstrip, 32)
|
|
|
|
def test_center(self):
|
|
# Fill character can be either bytes or bytearray (issue 12380)
|
|
b = self.type2test(b'abc')
|
|
for fill_type in (bytes, bytearray):
|
|
self.assertEqual(b.center(7, fill_type(b'-')),
|
|
self.type2test(b'--abc--'))
|
|
|
|
def test_ljust(self):
|
|
# Fill character can be either bytes or bytearray (issue 12380)
|
|
b = self.type2test(b'abc')
|
|
for fill_type in (bytes, bytearray):
|
|
self.assertEqual(b.ljust(7, fill_type(b'-')),
|
|
self.type2test(b'abc----'))
|
|
|
|
def test_rjust(self):
|
|
# Fill character can be either bytes or bytearray (issue 12380)
|
|
b = self.type2test(b'abc')
|
|
for fill_type in (bytes, bytearray):
|
|
self.assertEqual(b.rjust(7, fill_type(b'-')),
|
|
self.type2test(b'----abc'))
|
|
|
|
def test_xjust_int_error(self):
|
|
self.assertRaises(TypeError, self.type2test(b'abc').center, 7, 32)
|
|
self.assertRaises(TypeError, self.type2test(b'abc').ljust, 7, 32)
|
|
self.assertRaises(TypeError, self.type2test(b'abc').rjust, 7, 32)
|
|
|
|
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_maketrans(self):
|
|
transtable = b'\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`xyzdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377'
|
|
self.assertEqual(self.type2test.maketrans(b'abc', b'xyz'), transtable)
|
|
transtable = b'\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374xyz'
|
|
self.assertEqual(self.type2test.maketrans(b'\375\376\377', b'xyz'), transtable)
|
|
self.assertRaises(ValueError, self.type2test.maketrans, b'abc', b'xyzq')
|
|
self.assertRaises(TypeError, self.type2test.maketrans, 'abc', 'def')
|
|
|
|
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_integer_arguments_out_of_byte_range(self):
|
|
b = self.type2test(b'hello')
|
|
|
|
for method in (b.count, b.find, b.index, b.rfind, b.rindex):
|
|
self.assertRaises(ValueError, method, -1)
|
|
self.assertRaises(ValueError, method, 256)
|
|
self.assertRaises(ValueError, method, 9999)
|
|
|
|
def test_find_etc_raise_correct_error_messages(self):
|
|
# issue 11828
|
|
b = self.type2test(b'hello')
|
|
x = self.type2test(b'x')
|
|
self.assertRaisesRegex(TypeError, r'\bfind\b', b.find,
|
|
x, None, None, None)
|
|
self.assertRaisesRegex(TypeError, r'\brfind\b', b.rfind,
|
|
x, None, None, None)
|
|
self.assertRaisesRegex(TypeError, r'\bindex\b', b.index,
|
|
x, None, None, None)
|
|
self.assertRaisesRegex(TypeError, r'\brindex\b', b.rindex,
|
|
x, None, None, None)
|
|
self.assertRaisesRegex(TypeError, r'\bcount\b', b.count,
|
|
x, None, None, None)
|
|
self.assertRaisesRegex(TypeError, r'\bstartswith\b', b.startswith,
|
|
x, None, None, None)
|
|
self.assertRaisesRegex(TypeError, r'\bendswith\b', b.endswith,
|
|
x, None, None, None)
|
|
|
|
def test_free_after_iterating(self):
|
|
test.support.check_free_after_iterating(self, iter, self.type2test)
|
|
test.support.check_free_after_iterating(self, reversed, self.type2test)
|
|
|
|
def test_translate(self):
|
|
b = self.type2test(b'hello')
|
|
rosetta = bytearray(range(256))
|
|
rosetta[ord('o')] = ord('e')
|
|
|
|
self.assertRaises(TypeError, b.translate)
|
|
self.assertRaises(TypeError, b.translate, None, None)
|
|
self.assertRaises(ValueError, b.translate, bytes(range(255)))
|
|
|
|
c = b.translate(rosetta, b'hello')
|
|
self.assertEqual(b, b'hello')
|
|
self.assertIsInstance(c, self.type2test)
|
|
|
|
c = b.translate(rosetta)
|
|
d = b.translate(rosetta, b'')
|
|
self.assertEqual(c, d)
|
|
self.assertEqual(c, b'helle')
|
|
|
|
c = b.translate(rosetta, b'l')
|
|
self.assertEqual(c, b'hee')
|
|
c = b.translate(None, b'e')
|
|
self.assertEqual(c, b'hllo')
|
|
|
|
# test delete as a keyword argument
|
|
c = b.translate(rosetta, delete=b'')
|
|
self.assertEqual(c, b'helle')
|
|
c = b.translate(rosetta, delete=b'l')
|
|
self.assertEqual(c, b'hee')
|
|
c = b.translate(None, delete=b'e')
|
|
self.assertEqual(c, b'hllo')
|
|
|
|
def test_sq_item(self):
|
|
_testlimitedcapi = import_helper.import_module('_testlimitedcapi')
|
|
obj = self.type2test((42,))
|
|
with self.assertRaises(IndexError):
|
|
_testlimitedcapi.sequence_getitem(obj, -2)
|
|
with self.assertRaises(IndexError):
|
|
_testlimitedcapi.sequence_getitem(obj, 1)
|
|
self.assertEqual(_testlimitedcapi.sequence_getitem(obj, 0), 42)
|
|
|
|
|
|
class BytesTest(BaseBytesTest, unittest.TestCase):
|
|
type2test = bytes
|
|
|
|
def test__bytes__(self):
|
|
foo = b'foo\x00bar'
|
|
self.assertEqual(foo.__bytes__(), foo)
|
|
self.assertEqual(type(foo.__bytes__()), self.type2test)
|
|
|
|
class bytes_subclass(bytes):
|
|
pass
|
|
|
|
bar = bytes_subclass(b'bar\x00foo')
|
|
self.assertEqual(bar.__bytes__(), bar)
|
|
self.assertEqual(type(bar.__bytes__()), self.type2test)
|
|
|
|
def test_getitem_error(self):
|
|
b = b'python'
|
|
msg = "byte indices must be integers or slices"
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
b['a']
|
|
|
|
def test_buffer_is_readonly(self):
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
with open(fd, "rb", buffering=0) as f:
|
|
self.assertRaises(TypeError, f.readinto, b"")
|
|
|
|
def test_custom(self):
|
|
self.assertEqual(bytes(BytesSubclass(b'abc')), b'abc')
|
|
self.assertEqual(BytesSubclass(OtherBytesSubclass(b'abc')),
|
|
BytesSubclass(b'abc'))
|
|
self.assertEqual(bytes(WithBytes(b'abc')), b'abc')
|
|
self.assertEqual(BytesSubclass(WithBytes(b'abc')), BytesSubclass(b'abc'))
|
|
|
|
class NoBytes: pass
|
|
self.assertRaises(TypeError, bytes, NoBytes())
|
|
self.assertRaises(TypeError, bytes, WithBytes('abc'))
|
|
self.assertRaises(TypeError, bytes, WithBytes(None))
|
|
class IndexWithBytes:
|
|
def __bytes__(self):
|
|
return b'a'
|
|
def __index__(self):
|
|
return 42
|
|
self.assertEqual(bytes(IndexWithBytes()), b'a')
|
|
# Issue #25766
|
|
class StrWithBytes(str):
|
|
def __new__(cls, value):
|
|
self = str.__new__(cls, '\u20ac')
|
|
self.value = value
|
|
return self
|
|
def __bytes__(self):
|
|
return self.value
|
|
self.assertEqual(bytes(StrWithBytes(b'abc')), b'abc')
|
|
self.assertEqual(bytes(StrWithBytes(b'abc'), 'iso8859-15'), b'\xa4')
|
|
self.assertEqual(bytes(StrWithBytes(BytesSubclass(b'abc'))), b'abc')
|
|
self.assertEqual(BytesSubclass(StrWithBytes(b'abc')), BytesSubclass(b'abc'))
|
|
self.assertEqual(BytesSubclass(StrWithBytes(b'abc'), 'iso8859-15'),
|
|
BytesSubclass(b'\xa4'))
|
|
self.assertEqual(BytesSubclass(StrWithBytes(BytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
self.assertEqual(BytesSubclass(StrWithBytes(OtherBytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
# Issue #24731
|
|
self.assertTypedEqual(bytes(WithBytes(BytesSubclass(b'abc'))), BytesSubclass(b'abc'))
|
|
self.assertTypedEqual(BytesSubclass(WithBytes(BytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
self.assertTypedEqual(BytesSubclass(WithBytes(OtherBytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
|
|
class BytesWithBytes(bytes):
|
|
def __new__(cls, value):
|
|
self = bytes.__new__(cls, b'\xa4')
|
|
self.value = value
|
|
return self
|
|
def __bytes__(self):
|
|
return self.value
|
|
self.assertTypedEqual(bytes(BytesWithBytes(b'abc')), b'abc')
|
|
self.assertTypedEqual(BytesSubclass(BytesWithBytes(b'abc')),
|
|
BytesSubclass(b'abc'))
|
|
self.assertTypedEqual(bytes(BytesWithBytes(BytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
self.assertTypedEqual(BytesSubclass(BytesWithBytes(BytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
self.assertTypedEqual(BytesSubclass(BytesWithBytes(OtherBytesSubclass(b'abc'))),
|
|
BytesSubclass(b'abc'))
|
|
|
|
# Test PyBytes_FromFormat()
|
|
def test_from_format(self):
|
|
ctypes = import_helper.import_module('ctypes')
|
|
_testcapi = import_helper.import_module('_testcapi')
|
|
from ctypes import pythonapi, py_object
|
|
from ctypes import (
|
|
c_int, c_uint,
|
|
c_long, c_ulong,
|
|
c_size_t, c_ssize_t,
|
|
c_char_p)
|
|
|
|
PyBytes_FromFormat = pythonapi.PyBytes_FromFormat
|
|
PyBytes_FromFormat.argtypes = (c_char_p,)
|
|
PyBytes_FromFormat.restype = py_object
|
|
|
|
# basic tests
|
|
self.assertEqual(PyBytes_FromFormat(b'format'),
|
|
b'format')
|
|
self.assertEqual(PyBytes_FromFormat(b'Hello %s !', b'world'),
|
|
b'Hello world !')
|
|
|
|
# test formatters
|
|
self.assertEqual(PyBytes_FromFormat(b'c=%c', c_int(0)),
|
|
b'c=\0')
|
|
self.assertEqual(PyBytes_FromFormat(b'c=%c', c_int(ord('@'))),
|
|
b'c=@')
|
|
self.assertEqual(PyBytes_FromFormat(b'c=%c', c_int(255)),
|
|
b'c=\xff')
|
|
self.assertEqual(PyBytes_FromFormat(b'd=%d ld=%ld zd=%zd',
|
|
c_int(1), c_long(2),
|
|
c_size_t(3)),
|
|
b'd=1 ld=2 zd=3')
|
|
self.assertEqual(PyBytes_FromFormat(b'd=%d ld=%ld zd=%zd',
|
|
c_int(-1), c_long(-2),
|
|
c_size_t(-3)),
|
|
b'd=-1 ld=-2 zd=-3')
|
|
self.assertEqual(PyBytes_FromFormat(b'u=%u lu=%lu zu=%zu',
|
|
c_uint(123), c_ulong(456),
|
|
c_size_t(789)),
|
|
b'u=123 lu=456 zu=789')
|
|
self.assertEqual(PyBytes_FromFormat(b'i=%i', c_int(123)),
|
|
b'i=123')
|
|
self.assertEqual(PyBytes_FromFormat(b'i=%i', c_int(-123)),
|
|
b'i=-123')
|
|
self.assertEqual(PyBytes_FromFormat(b'x=%x', c_int(0xabc)),
|
|
b'x=abc')
|
|
|
|
sizeof_ptr = ctypes.sizeof(c_char_p)
|
|
|
|
if os.name == 'nt':
|
|
# Windows (MSCRT)
|
|
ptr_format = '0x%0{}X'.format(2 * sizeof_ptr)
|
|
def ptr_formatter(ptr):
|
|
return (ptr_format % ptr)
|
|
else:
|
|
# UNIX (glibc)
|
|
def ptr_formatter(ptr):
|
|
return '%#x' % ptr
|
|
|
|
ptr = 0xabcdef
|
|
self.assertEqual(PyBytes_FromFormat(b'ptr=%p', c_char_p(ptr)),
|
|
('ptr=' + ptr_formatter(ptr)).encode('ascii'))
|
|
self.assertEqual(PyBytes_FromFormat(b's=%s', c_char_p(b'cstr')),
|
|
b's=cstr')
|
|
|
|
# test minimum and maximum integer values
|
|
size_max = c_size_t(-1).value
|
|
for formatstr, ctypes_type, value, py_formatter in (
|
|
(b'%d', c_int, _testcapi.INT_MIN, str),
|
|
(b'%d', c_int, _testcapi.INT_MAX, str),
|
|
(b'%ld', c_long, _testcapi.LONG_MIN, str),
|
|
(b'%ld', c_long, _testcapi.LONG_MAX, str),
|
|
(b'%lu', c_ulong, _testcapi.ULONG_MAX, str),
|
|
(b'%zd', c_ssize_t, _testcapi.PY_SSIZE_T_MIN, str),
|
|
(b'%zd', c_ssize_t, _testcapi.PY_SSIZE_T_MAX, str),
|
|
(b'%zu', c_size_t, size_max, str),
|
|
(b'%p', c_char_p, size_max, ptr_formatter),
|
|
):
|
|
self.assertEqual(PyBytes_FromFormat(formatstr, ctypes_type(value)),
|
|
py_formatter(value).encode('ascii')),
|
|
|
|
# width and precision (width is currently ignored)
|
|
self.assertEqual(PyBytes_FromFormat(b'%5s', b'a'),
|
|
b'a')
|
|
self.assertEqual(PyBytes_FromFormat(b'%.3s', b'abcdef'),
|
|
b'abc')
|
|
|
|
# '%%' formatter
|
|
self.assertEqual(PyBytes_FromFormat(b'%%'),
|
|
b'%')
|
|
self.assertEqual(PyBytes_FromFormat(b'[%%]'),
|
|
b'[%]')
|
|
self.assertEqual(PyBytes_FromFormat(b'%%%c', c_int(ord('_'))),
|
|
b'%_')
|
|
self.assertEqual(PyBytes_FromFormat(b'%%s'),
|
|
b'%s')
|
|
|
|
# Invalid formats and partial formatting
|
|
self.assertEqual(PyBytes_FromFormat(b'%'), b'%')
|
|
self.assertEqual(PyBytes_FromFormat(b'x=%i y=%', c_int(2), c_int(3)),
|
|
b'x=2 y=%')
|
|
|
|
# Issue #19969: %c must raise OverflowError for values
|
|
# not in the range [0; 255]
|
|
self.assertRaises(OverflowError,
|
|
PyBytes_FromFormat, b'%c', c_int(-1))
|
|
self.assertRaises(OverflowError,
|
|
PyBytes_FromFormat, b'%c', c_int(256))
|
|
|
|
# Issue #33817: empty strings
|
|
self.assertEqual(PyBytes_FromFormat(b''),
|
|
b'')
|
|
self.assertEqual(PyBytes_FromFormat(b'%s', b''),
|
|
b'')
|
|
|
|
def test_bytes_blocking(self):
|
|
class IterationBlocked(list):
|
|
__bytes__ = None
|
|
i = [0, 1, 2, 3]
|
|
self.assertEqual(bytes(i), b'\x00\x01\x02\x03')
|
|
self.assertRaises(TypeError, bytes, IterationBlocked(i))
|
|
|
|
# At least in CPython, because bytes.__new__ and the C API
|
|
# PyBytes_FromObject have different fallback rules, integer
|
|
# fallback is handled specially, so test separately.
|
|
class IntBlocked(int):
|
|
__bytes__ = None
|
|
self.assertEqual(bytes(3), b'\0\0\0')
|
|
self.assertRaises(TypeError, bytes, IntBlocked(3))
|
|
|
|
# While there is no separately-defined rule for handling bytes
|
|
# subclasses differently from other buffer-interface classes,
|
|
# an implementation may well special-case them (as CPython 2.x
|
|
# str did), so test them separately.
|
|
class BytesSubclassBlocked(bytes):
|
|
__bytes__ = None
|
|
self.assertEqual(bytes(b'ab'), b'ab')
|
|
self.assertRaises(TypeError, bytes, BytesSubclassBlocked(b'ab'))
|
|
|
|
class BufferBlocked(bytearray):
|
|
__bytes__ = None
|
|
ba, bb = bytearray(b'ab'), BufferBlocked(b'ab')
|
|
self.assertEqual(bytes(ba), b'ab')
|
|
self.assertRaises(TypeError, bytes, bb)
|
|
|
|
def test_repeat_id_preserving(self):
|
|
a = b'123abc1@'
|
|
b = b'456zyx-+'
|
|
self.assertEqual(id(a), id(a))
|
|
self.assertNotEqual(id(a), id(b))
|
|
self.assertNotEqual(id(a), id(a * -4))
|
|
self.assertNotEqual(id(a), id(a * 0))
|
|
self.assertEqual(id(a), id(a * 1))
|
|
self.assertEqual(id(a), id(1 * a))
|
|
self.assertNotEqual(id(a), id(a * 2))
|
|
|
|
class SubBytes(bytes):
|
|
pass
|
|
|
|
s = SubBytes(b'qwerty()')
|
|
self.assertEqual(id(s), id(s))
|
|
self.assertNotEqual(id(s), id(s * -4))
|
|
self.assertNotEqual(id(s), id(s * 0))
|
|
self.assertNotEqual(id(s), id(s * 1))
|
|
self.assertNotEqual(id(s), id(1 * s))
|
|
self.assertNotEqual(id(s), id(s * 2))
|
|
|
|
|
|
class ByteArrayTest(BaseBytesTest, unittest.TestCase):
|
|
type2test = bytearray
|
|
|
|
_testlimitedcapi = import_helper.import_module('_testlimitedcapi')
|
|
|
|
def test_getitem_error(self):
|
|
b = bytearray(b'python')
|
|
msg = "bytearray indices must be integers or slices"
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
b['a']
|
|
|
|
def test_setitem_error(self):
|
|
b = bytearray(b'python')
|
|
msg = "bytearray indices must be integers or slices"
|
|
with self.assertRaisesRegex(TypeError, msg):
|
|
b['a'] = "python"
|
|
|
|
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 OSError:
|
|
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_clear(self):
|
|
b = bytearray(b'python')
|
|
b.clear()
|
|
self.assertEqual(b, b'')
|
|
|
|
b = bytearray(b'')
|
|
b.clear()
|
|
self.assertEqual(b, b'')
|
|
|
|
b = bytearray(b'')
|
|
b.append(ord('r'))
|
|
b.clear()
|
|
b.append(ord('p'))
|
|
self.assertEqual(b, b'p')
|
|
|
|
def test_copy(self):
|
|
b = bytearray(b'abc')
|
|
bb = b.copy()
|
|
self.assertEqual(bb, b'abc')
|
|
|
|
b = bytearray(b'')
|
|
bb = b.copy()
|
|
self.assertEqual(bb, b'')
|
|
|
|
# test that it's indeed a copy and not a reference
|
|
b = bytearray(b'abc')
|
|
bb = b.copy()
|
|
self.assertEqual(b, bb)
|
|
self.assertIsNot(b, bb)
|
|
bb.append(ord('d'))
|
|
self.assertEqual(bb, b'abcd')
|
|
self.assertEqual(b, b'abc')
|
|
|
|
def test_regexps(self):
|
|
def by(s):
|
|
return bytearray(map(ord, s))
|
|
b = by("Hello, world")
|
|
self.assertEqual(re.findall(br"\w+", b), [by("Hello"), by("world")])
|
|
|
|
def test_setitem(self):
|
|
def setitem_as_mapping(b, i, val):
|
|
b[i] = val
|
|
|
|
def setitem_as_sequence(b, i, val):
|
|
self._testlimitedcapi.sequence_setitem(b, i, val)
|
|
|
|
def do_tests(setitem):
|
|
b = bytearray([1, 2, 3])
|
|
setitem(b, 1, 100)
|
|
self.assertEqual(b, bytearray([1, 100, 3]))
|
|
setitem(b, -1, 200)
|
|
self.assertEqual(b, bytearray([1, 100, 200]))
|
|
setitem(b, 0, Indexable(10))
|
|
self.assertEqual(b, bytearray([10, 100, 200]))
|
|
try:
|
|
setitem(b, 3, 0)
|
|
self.fail("Didn't raise IndexError")
|
|
except IndexError:
|
|
pass
|
|
try:
|
|
setitem(b, -10, 0)
|
|
self.fail("Didn't raise IndexError")
|
|
except IndexError:
|
|
pass
|
|
try:
|
|
setitem(b, 0, 256)
|
|
self.fail("Didn't raise ValueError")
|
|
except ValueError:
|
|
pass
|
|
try:
|
|
setitem(b, 0, Indexable(-1))
|
|
self.fail("Didn't raise ValueError")
|
|
except ValueError:
|
|
pass
|
|
try:
|
|
setitem(b, 0, object())
|
|
self.fail("Didn't raise TypeError")
|
|
except TypeError:
|
|
pass
|
|
|
|
with self.subTest("tp_as_mapping"):
|
|
do_tests(setitem_as_mapping)
|
|
|
|
with self.subTest("tp_as_sequence"):
|
|
do_tests(setitem_as_sequence)
|
|
|
|
def test_delitem(self):
|
|
def del_as_mapping(b, i):
|
|
del b[i]
|
|
|
|
def del_as_sequence(b, i):
|
|
self._testlimitedcapi.sequence_delitem(b, i)
|
|
|
|
def do_tests(delete):
|
|
b = bytearray(range(10))
|
|
delete(b, 0)
|
|
self.assertEqual(b, bytearray(range(1, 10)))
|
|
delete(b, -1)
|
|
self.assertEqual(b, bytearray(range(1, 9)))
|
|
delete(b, 4)
|
|
self.assertEqual(b, bytearray([1, 2, 3, 4, 6, 7, 8]))
|
|
|
|
with self.subTest("tp_as_mapping"):
|
|
do_tests(del_as_mapping)
|
|
|
|
with self.subTest("tp_as_sequence"):
|
|
do_tests(del_as_sequence)
|
|
|
|
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]))
|
|
|
|
b[3:] = b'foo'
|
|
self.assertEqual(b, bytearray([0, 1, 2, 102, 111, 111]))
|
|
|
|
b[:3] = memoryview(b'foo')
|
|
self.assertEqual(b, bytearray([102, 111, 111, 102, 111, 111]))
|
|
|
|
b[3:4] = []
|
|
self.assertEqual(b, bytearray([102, 111, 111, 111, 111]))
|
|
|
|
for elem in [5, -5, 0, int(10e20), 'str', 2.3,
|
|
['a', 'b'], [b'a', b'b'], [[]]]:
|
|
with self.assertRaises(TypeError):
|
|
b[3:4] = elem
|
|
|
|
for elem in [[254, 255, 256], [-256, 9000]]:
|
|
with self.assertRaises(ValueError):
|
|
b[3:4] = elem
|
|
|
|
def test_setslice_extend(self):
|
|
# Exercise the resizing logic (see issue #19087)
|
|
b = bytearray(range(100))
|
|
self.assertEqual(list(b), list(range(100)))
|
|
del b[:10]
|
|
self.assertEqual(list(b), list(range(10, 100)))
|
|
b.extend(range(100, 110))
|
|
self.assertEqual(list(b), list(range(10, 110)))
|
|
|
|
def test_fifo_overrun(self):
|
|
# Test for issue #23985, a buffer overrun when implementing a FIFO
|
|
# Build Python in pydebug mode for best results.
|
|
b = bytearray(10)
|
|
b.pop() # Defeat expanding buffer off-by-one quirk
|
|
del b[:1] # Advance start pointer without reallocating
|
|
b += bytes(2) # Append exactly the number of deleted bytes
|
|
del b # Free memory buffer, allowing pydebug verification
|
|
|
|
def test_del_expand(self):
|
|
# Reducing the size should not expand the buffer (issue #23985)
|
|
b = bytearray(10)
|
|
size = sys.getsizeof(b)
|
|
del b[:1]
|
|
self.assertLessEqual(sys.getsizeof(b), size)
|
|
|
|
def test_extended_set_del_slice(self):
|
|
indices = (0, None, 1, 3, 19, 300, 1<<333, sys.maxsize,
|
|
-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.assertIs(b, 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.assertIs(b, 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.assertIs(b, b1)
|
|
|
|
def test_alloc(self):
|
|
b = bytearray()
|
|
alloc = b.__alloc__()
|
|
self.assertGreaterEqual(alloc, 0)
|
|
seq = [alloc]
|
|
for i in range(100):
|
|
b += b"x"
|
|
alloc = b.__alloc__()
|
|
self.assertGreater(alloc, len(b)) # including trailing null byte
|
|
if alloc not in seq:
|
|
seq.append(alloc)
|
|
|
|
def test_init_alloc(self):
|
|
b = bytearray()
|
|
def g():
|
|
for i in range(1, 100):
|
|
yield i
|
|
a = list(b)
|
|
self.assertEqual(a, list(range(1, len(a)+1)))
|
|
self.assertEqual(len(b), len(a))
|
|
self.assertLessEqual(len(b), i)
|
|
alloc = b.__alloc__()
|
|
self.assertGreater(alloc, len(b)) # including trailing null byte
|
|
b.__init__(g())
|
|
self.assertEqual(list(b), list(range(1, 100)))
|
|
self.assertEqual(len(b), 99)
|
|
alloc = b.__alloc__()
|
|
self.assertGreater(alloc, len(b))
|
|
|
|
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')
|
|
a = bytearray(b'abc')
|
|
self.assertRaisesRegex(TypeError, # Override for string.
|
|
"expected iterable of integers; got: 'str'",
|
|
a.extend, 'def')
|
|
self.assertRaisesRegex(TypeError, # But not for others.
|
|
"can't extend bytearray with float",
|
|
a.extend, 1.0)
|
|
|
|
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('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'')
|
|
|
|
# test values outside of the ascii range: (0, 127)
|
|
c = bytearray([126, 127, 128, 129])
|
|
c.remove(127)
|
|
self.assertEqual(c, bytes([126, 128, 129]))
|
|
c.remove(129)
|
|
self.assertEqual(c, bytes([126, 128]))
|
|
|
|
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(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_copied(self):
|
|
# Issue 4348. Make sure that operations that don't mutate the array
|
|
# copy the bytes.
|
|
b = bytearray(b'abc')
|
|
self.assertIsNot(b, b.replace(b'abc', b'cde', 0))
|
|
|
|
t = bytearray([i for i in range(256)])
|
|
x = bytearray(b'')
|
|
self.assertIsNot(x, 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.assertIsNot(b, 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.assertIsNot(b, 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)
|
|
|
|
@test.support.cpython_only
|
|
def test_obsolete_write_lock(self):
|
|
_testcapi = import_helper.import_module('_testcapi')
|
|
self.assertRaises(BufferError, _testcapi.getbuffer_with_null_view, bytearray())
|
|
|
|
def test_iterator_pickling2(self):
|
|
orig = bytearray(b'abc')
|
|
data = list(b'qwerty')
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
# initial iterator
|
|
itorig = iter(orig)
|
|
d = pickle.dumps((itorig, orig), proto)
|
|
it, b = pickle.loads(d)
|
|
b[:] = data
|
|
self.assertEqual(type(it), type(itorig))
|
|
self.assertEqual(list(it), data)
|
|
|
|
# running iterator
|
|
next(itorig)
|
|
d = pickle.dumps((itorig, orig), proto)
|
|
it, b = pickle.loads(d)
|
|
b[:] = data
|
|
self.assertEqual(type(it), type(itorig))
|
|
self.assertEqual(list(it), data[1:])
|
|
|
|
# empty iterator
|
|
for i in range(1, len(orig)):
|
|
next(itorig)
|
|
d = pickle.dumps((itorig, orig), proto)
|
|
it, b = pickle.loads(d)
|
|
b[:] = data
|
|
self.assertEqual(type(it), type(itorig))
|
|
self.assertEqual(list(it), data[len(orig):])
|
|
|
|
# exhausted iterator
|
|
self.assertRaises(StopIteration, next, itorig)
|
|
d = pickle.dumps((itorig, orig), proto)
|
|
it, b = pickle.loads(d)
|
|
b[:] = data
|
|
self.assertEqual(list(it), [])
|
|
|
|
test_exhausted_iterator = test.list_tests.CommonTest.test_exhausted_iterator
|
|
|
|
def test_iterator_length_hint(self):
|
|
# Issue 27443: __length_hint__ can return negative integer
|
|
ba = bytearray(b'ab')
|
|
it = iter(ba)
|
|
next(it)
|
|
ba.clear()
|
|
# Shouldn't raise an error
|
|
self.assertEqual(list(it), [])
|
|
|
|
def test_repeat_after_setslice(self):
|
|
# bpo-42924: * used to copy from the wrong memory location
|
|
b = bytearray(b'abc')
|
|
b[:2] = b'x'
|
|
b1 = b * 1
|
|
b3 = b * 3
|
|
self.assertEqual(b1, b'xc')
|
|
self.assertEqual(b1, b)
|
|
self.assertEqual(b3, b'xcxcxc')
|
|
|
|
def test_mutating_index(self):
|
|
# See gh-91153
|
|
|
|
class Boom:
|
|
def __index__(self):
|
|
b.clear()
|
|
return 0
|
|
|
|
with self.subTest("tp_as_mapping"):
|
|
b = bytearray(b'Now you see me...')
|
|
with self.assertRaises(IndexError):
|
|
b[0] = Boom()
|
|
|
|
with self.subTest("tp_as_sequence"):
|
|
b = bytearray(b'Now you see me...')
|
|
with self.assertRaises(IndexError):
|
|
self._testlimitedcapi.sequence_setitem(b, 0, Boom())
|
|
|
|
|
|
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'\'"'""") # '
|
|
|
|
@check_bytes_warnings
|
|
def test_format(self):
|
|
for b in b'abc', bytearray(b'abc'):
|
|
self.assertEqual(format(b), str(b))
|
|
self.assertEqual(format(b, ''), str(b))
|
|
with self.assertRaisesRegex(TypeError,
|
|
r'\b%s\b' % re.escape(type(b).__name__)):
|
|
format(b, 's')
|
|
|
|
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)
|
|
|
|
@test.support.requires_docstrings
|
|
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_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.assertIsNot(b.replace(b'', b''), b)
|
|
|
|
@unittest.skipUnless(sys.flags.bytes_warning,
|
|
"BytesWarning is needed for this test: use -bb option")
|
|
def test_compare(self):
|
|
def bytes_warning():
|
|
return warnings_helper.check_warnings(('', BytesWarning))
|
|
with bytes_warning():
|
|
b'' == ''
|
|
with bytes_warning():
|
|
'' == b''
|
|
with bytes_warning():
|
|
b'' != ''
|
|
with bytes_warning():
|
|
'' != b''
|
|
with bytes_warning():
|
|
bytearray(b'') == ''
|
|
with bytes_warning():
|
|
'' == bytearray(b'')
|
|
with bytes_warning():
|
|
bytearray(b'') != ''
|
|
with bytes_warning():
|
|
'' != bytearray(b'')
|
|
with bytes_warning():
|
|
b'\0' == 0
|
|
with bytes_warning():
|
|
0 == b'\0'
|
|
with bytes_warning():
|
|
b'\0' != 0
|
|
with bytes_warning():
|
|
0 != b'\0'
|
|
|
|
# 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 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):
|
|
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.assertIsNot(val, newval,
|
|
methname+' returned self on a mutable object')
|
|
for expr in ('val.split()[0]', 'val.rsplit()[0]',
|
|
'val.partition(b".")[0]', 'val.rpartition(b".")[2]',
|
|
'val.splitlines()[0]', 'val.replace(b"", b"")'):
|
|
newval = eval(expr)
|
|
self.assertEqual(val, newval)
|
|
self.assertIsNot(val, newval,
|
|
expr+' returned val on a mutable object')
|
|
sep = self.marshal(b'')
|
|
newval = sep.join([val])
|
|
self.assertEqual(val, newval)
|
|
self.assertIsNot(val, newval)
|
|
|
|
|
|
class FixedStringTest(test.string_tests.BaseTest):
|
|
def fixtype(self, obj):
|
|
if isinstance(obj, str):
|
|
return self.type2test(obj.encode("utf-8"))
|
|
return super().fixtype(obj)
|
|
|
|
contains_bytes = True
|
|
|
|
class ByteArrayAsStringTest(FixedStringTest, unittest.TestCase):
|
|
type2test = bytearray
|
|
|
|
class BytesAsStringTest(FixedStringTest, unittest.TestCase):
|
|
type2test = bytes
|
|
|
|
|
|
class SubclassTest:
|
|
|
|
def test_basic(self):
|
|
self.assertTrue(issubclass(self.type2test, self.basetype))
|
|
self.assertIsInstance(self.type2test(), self.basetype)
|
|
|
|
a, b = b"abcd", b"efgh"
|
|
_a, _b = self.type2test(a), self.type2test(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.assertIsNot(_a, 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 = self.type2test(b"abcd")
|
|
s2 = self.basetype().join([s1])
|
|
self.assertIsNot(s1, s2)
|
|
self.assertIs(type(s2), self.basetype, type(s2))
|
|
|
|
# Test reverse, calling join on subclass
|
|
s3 = s1.join([b"abcd"])
|
|
self.assertIs(type(s3), self.basetype)
|
|
|
|
def test_pickle(self):
|
|
a = self.type2test(b"abcd")
|
|
a.x = 10
|
|
a.z = self.type2test(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.z, b.z)
|
|
self.assertEqual(type(a), type(b))
|
|
self.assertEqual(type(a.z), type(b.z))
|
|
self.assertFalse(hasattr(b, 'y'))
|
|
|
|
def test_copy(self):
|
|
a = self.type2test(b"abcd")
|
|
a.x = 10
|
|
a.z = self.type2test(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.z, b.z)
|
|
self.assertEqual(type(a), type(b))
|
|
self.assertEqual(type(a.z), type(b.z))
|
|
self.assertFalse(hasattr(b, 'y'))
|
|
|
|
def test_fromhex(self):
|
|
b = self.type2test.fromhex('1a2B30')
|
|
self.assertEqual(b, b'\x1a\x2b\x30')
|
|
self.assertIs(type(b), self.type2test)
|
|
|
|
class B1(self.basetype):
|
|
def __new__(cls, value):
|
|
me = self.basetype.__new__(cls, value)
|
|
me.foo = 'bar'
|
|
return me
|
|
|
|
b = B1.fromhex('1a2B30')
|
|
self.assertEqual(b, b'\x1a\x2b\x30')
|
|
self.assertIs(type(b), B1)
|
|
self.assertEqual(b.foo, 'bar')
|
|
|
|
class B2(self.basetype):
|
|
def __init__(me, *args, **kwargs):
|
|
if self.basetype is not bytes:
|
|
self.basetype.__init__(me, *args, **kwargs)
|
|
me.foo = 'bar'
|
|
|
|
b = B2.fromhex('1a2B30')
|
|
self.assertEqual(b, b'\x1a\x2b\x30')
|
|
self.assertIs(type(b), B2)
|
|
self.assertEqual(b.foo, 'bar')
|
|
|
|
|
|
class ByteArraySubclass(bytearray):
|
|
pass
|
|
|
|
class ByteArraySubclassWithSlots(bytearray):
|
|
__slots__ = ('x', 'y', '__dict__')
|
|
|
|
class BytesSubclass(bytes):
|
|
pass
|
|
|
|
class OtherBytesSubclass(bytes):
|
|
pass
|
|
|
|
class WithBytes:
|
|
def __init__(self, value):
|
|
self.value = value
|
|
def __bytes__(self):
|
|
return self.value
|
|
|
|
class ByteArraySubclassTest(SubclassTest, unittest.TestCase):
|
|
basetype = bytearray
|
|
type2test = ByteArraySubclass
|
|
|
|
def test_init_override(self):
|
|
class subclass(bytearray):
|
|
def __init__(me, newarg=1, *args, **kwargs):
|
|
bytearray.__init__(me, *args, **kwargs)
|
|
x = subclass(4, b"abcd")
|
|
x = subclass(4, source=b"abcd")
|
|
self.assertEqual(x, b"abcd")
|
|
x = subclass(newarg=4, source=b"abcd")
|
|
self.assertEqual(x, b"abcd")
|
|
|
|
class ByteArraySubclassWithSlotsTest(SubclassTest, unittest.TestCase):
|
|
basetype = bytearray
|
|
type2test = ByteArraySubclassWithSlots
|
|
|
|
class BytesSubclassTest(SubclassTest, unittest.TestCase):
|
|
basetype = bytes
|
|
type2test = BytesSubclass
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|