mirror of https://github.com/python/cpython
1670 lines
57 KiB
Python
Executable File
1670 lines
57 KiB
Python
Executable File
"""Test the arraymodule.
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Roger E. Masse
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"""
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import collections.abc
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import unittest
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from test import support
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from test.support import import_helper
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from test.support import os_helper
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from test.support import _2G
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import weakref
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import pickle
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import operator
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import struct
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import sys
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import warnings
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import array
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from array import _array_reconstructor as array_reconstructor
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with warnings.catch_warnings():
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warnings.simplefilter('ignore', DeprecationWarning)
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sizeof_wchar = array.array('u').itemsize
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class ArraySubclass(array.array):
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pass
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class ArraySubclassWithKwargs(array.array):
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def __init__(self, typecode, newarg=None):
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array.array.__init__(self)
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typecodes = 'uwbBhHiIlLfdqQ'
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class MiscTest(unittest.TestCase):
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def test_array_is_sequence(self):
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self.assertIsInstance(array.array("B"), collections.abc.MutableSequence)
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self.assertIsInstance(array.array("B"), collections.abc.Reversible)
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def test_bad_constructor(self):
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self.assertRaises(TypeError, array.array)
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self.assertRaises(TypeError, array.array, spam=42)
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self.assertRaises(TypeError, array.array, 'xx')
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self.assertRaises(ValueError, array.array, 'x')
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@support.cpython_only
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def test_disallow_instantiation(self):
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my_array = array.array("I")
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support.check_disallow_instantiation(
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self, type(iter(my_array)), my_array
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)
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@support.cpython_only
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def test_immutable(self):
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# bpo-43908: check that array.array is immutable
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with self.assertRaises(TypeError):
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array.array.foo = 1
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def test_empty(self):
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# Exercise code for handling zero-length arrays
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a = array.array('B')
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a[:] = a
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self.assertEqual(len(a), 0)
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self.assertEqual(len(a + a), 0)
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self.assertEqual(len(a * 3), 0)
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a += a
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self.assertEqual(len(a), 0)
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# Machine format codes.
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#
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# Search for "enum machine_format_code" in Modules/arraymodule.c to get the
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# authoritative values.
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UNKNOWN_FORMAT = -1
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UNSIGNED_INT8 = 0
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SIGNED_INT8 = 1
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UNSIGNED_INT16_LE = 2
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UNSIGNED_INT16_BE = 3
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SIGNED_INT16_LE = 4
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SIGNED_INT16_BE = 5
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UNSIGNED_INT32_LE = 6
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UNSIGNED_INT32_BE = 7
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SIGNED_INT32_LE = 8
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SIGNED_INT32_BE = 9
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UNSIGNED_INT64_LE = 10
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UNSIGNED_INT64_BE = 11
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SIGNED_INT64_LE = 12
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SIGNED_INT64_BE = 13
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IEEE_754_FLOAT_LE = 14
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IEEE_754_FLOAT_BE = 15
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IEEE_754_DOUBLE_LE = 16
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IEEE_754_DOUBLE_BE = 17
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UTF16_LE = 18
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UTF16_BE = 19
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UTF32_LE = 20
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UTF32_BE = 21
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class ArrayReconstructorTest(unittest.TestCase):
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def setUp(self):
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self.enterContext(warnings.catch_warnings())
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warnings.filterwarnings(
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"ignore",
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message="The 'u' type code is deprecated and "
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"will be removed in Python 3.16",
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category=DeprecationWarning)
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def test_error(self):
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self.assertRaises(TypeError, array_reconstructor,
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"", "b", 0, b"")
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self.assertRaises(TypeError, array_reconstructor,
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str, "b", 0, b"")
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self.assertRaises(TypeError, array_reconstructor,
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array.array, "b", '', b"")
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self.assertRaises(TypeError, array_reconstructor,
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array.array, "b", 0, "")
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self.assertRaises(ValueError, array_reconstructor,
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array.array, "?", 0, b"")
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self.assertRaises(ValueError, array_reconstructor,
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array.array, "b", UNKNOWN_FORMAT, b"")
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self.assertRaises(ValueError, array_reconstructor,
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array.array, "b", 22, b"")
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self.assertRaises(ValueError, array_reconstructor,
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array.array, "d", 16, b"a")
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def test_numbers(self):
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testcases = (
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(['B', 'H', 'I', 'L'], UNSIGNED_INT8, '=BBBB',
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[0x80, 0x7f, 0, 0xff]),
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(['b', 'h', 'i', 'l'], SIGNED_INT8, '=bbb',
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[-0x80, 0x7f, 0]),
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(['H', 'I', 'L'], UNSIGNED_INT16_LE, '<HHHH',
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[0x8000, 0x7fff, 0, 0xffff]),
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(['H', 'I', 'L'], UNSIGNED_INT16_BE, '>HHHH',
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[0x8000, 0x7fff, 0, 0xffff]),
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(['h', 'i', 'l'], SIGNED_INT16_LE, '<hhh',
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[-0x8000, 0x7fff, 0]),
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(['h', 'i', 'l'], SIGNED_INT16_BE, '>hhh',
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[-0x8000, 0x7fff, 0]),
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(['I', 'L'], UNSIGNED_INT32_LE, '<IIII',
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[1<<31, (1<<31)-1, 0, (1<<32)-1]),
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(['I', 'L'], UNSIGNED_INT32_BE, '>IIII',
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[1<<31, (1<<31)-1, 0, (1<<32)-1]),
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(['i', 'l'], SIGNED_INT32_LE, '<iii',
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[-1<<31, (1<<31)-1, 0]),
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(['i', 'l'], SIGNED_INT32_BE, '>iii',
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[-1<<31, (1<<31)-1, 0]),
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(['L'], UNSIGNED_INT64_LE, '<QQQQ',
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[1<<31, (1<<31)-1, 0, (1<<32)-1]),
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(['L'], UNSIGNED_INT64_BE, '>QQQQ',
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[1<<31, (1<<31)-1, 0, (1<<32)-1]),
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(['l'], SIGNED_INT64_LE, '<qqq',
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[-1<<31, (1<<31)-1, 0]),
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(['l'], SIGNED_INT64_BE, '>qqq',
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[-1<<31, (1<<31)-1, 0]),
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# The following tests for INT64 will raise an OverflowError
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# when run on a 32-bit machine. The tests are simply skipped
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# in that case.
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(['L'], UNSIGNED_INT64_LE, '<QQQQ',
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[1<<63, (1<<63)-1, 0, (1<<64)-1]),
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(['L'], UNSIGNED_INT64_BE, '>QQQQ',
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[1<<63, (1<<63)-1, 0, (1<<64)-1]),
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(['l'], SIGNED_INT64_LE, '<qqq',
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[-1<<63, (1<<63)-1, 0]),
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(['l'], SIGNED_INT64_BE, '>qqq',
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[-1<<63, (1<<63)-1, 0]),
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(['f'], IEEE_754_FLOAT_LE, '<ffff',
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[16711938.0, float('inf'), float('-inf'), -0.0]),
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(['f'], IEEE_754_FLOAT_BE, '>ffff',
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[16711938.0, float('inf'), float('-inf'), -0.0]),
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(['d'], IEEE_754_DOUBLE_LE, '<dddd',
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[9006104071832581.0, float('inf'), float('-inf'), -0.0]),
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(['d'], IEEE_754_DOUBLE_BE, '>dddd',
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[9006104071832581.0, float('inf'), float('-inf'), -0.0])
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)
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for testcase in testcases:
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valid_typecodes, mformat_code, struct_fmt, values = testcase
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arraystr = struct.pack(struct_fmt, *values)
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for typecode in valid_typecodes:
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try:
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a = array.array(typecode, values)
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except OverflowError:
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continue # Skip this test case.
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b = array_reconstructor(
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array.array, typecode, mformat_code, arraystr)
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self.assertEqual(a, b,
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msg="{0!r} != {1!r}; testcase={2!r}".format(a, b, testcase))
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def test_unicode(self):
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teststr = "Bonne Journ\xe9e \U0002030a\U00020347"
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testcases = (
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(UTF16_LE, "UTF-16-LE"),
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(UTF16_BE, "UTF-16-BE"),
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(UTF32_LE, "UTF-32-LE"),
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(UTF32_BE, "UTF-32-BE")
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)
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for testcase in testcases:
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mformat_code, encoding = testcase
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for c in 'uw':
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a = array.array(c, teststr)
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b = array_reconstructor(
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array.array, c, mformat_code, teststr.encode(encoding))
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self.assertEqual(a, b,
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msg="{0!r} != {1!r}; testcase={2!r}".format(a, b, testcase))
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class BaseTest:
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# Required class attributes (provided by subclasses
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# typecode: the typecode to test
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# example: an initializer usable in the constructor for this type
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# smallerexample: the same length as example, but smaller
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# biggerexample: the same length as example, but bigger
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# outside: An entry that is not in example
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# minitemsize: the minimum guaranteed itemsize
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def setUp(self):
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self.enterContext(warnings.catch_warnings())
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warnings.filterwarnings(
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"ignore",
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message="The 'u' type code is deprecated and "
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"will be removed in Python 3.16",
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category=DeprecationWarning)
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def assertEntryEqual(self, entry1, entry2):
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self.assertEqual(entry1, entry2)
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def badtypecode(self):
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# Return a typecode that is different from our own
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return typecodes[(typecodes.index(self.typecode)+1) % len(typecodes)]
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def test_constructor(self):
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a = array.array(self.typecode)
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self.assertEqual(a.typecode, self.typecode)
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self.assertGreaterEqual(a.itemsize, self.minitemsize)
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self.assertRaises(TypeError, array.array, self.typecode, None)
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def test_len(self):
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a = array.array(self.typecode)
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a.append(self.example[0])
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self.assertEqual(len(a), 1)
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a = array.array(self.typecode, self.example)
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self.assertEqual(len(a), len(self.example))
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def test_buffer_info(self):
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a = array.array(self.typecode, self.example)
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self.assertRaises(TypeError, a.buffer_info, 42)
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bi = a.buffer_info()
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self.assertIsInstance(bi, tuple)
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self.assertEqual(len(bi), 2)
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self.assertIsInstance(bi[0], int)
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self.assertIsInstance(bi[1], int)
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self.assertEqual(bi[1], len(a))
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def test_byteswap(self):
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if self.typecode in ('u', 'w'):
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example = '\U00100100'
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else:
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example = self.example
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a = array.array(self.typecode, example)
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self.assertRaises(TypeError, a.byteswap, 42)
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if a.itemsize in (1, 2, 4, 8):
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b = array.array(self.typecode, example)
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b.byteswap()
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if a.itemsize==1:
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self.assertEqual(a, b)
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else:
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self.assertNotEqual(a, b)
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b.byteswap()
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self.assertEqual(a, b)
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def test_copy(self):
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import copy
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a = array.array(self.typecode, self.example)
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b = copy.copy(a)
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self.assertNotEqual(id(a), id(b))
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self.assertEqual(a, b)
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def test_deepcopy(self):
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import copy
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a = array.array(self.typecode, self.example)
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b = copy.deepcopy(a)
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self.assertNotEqual(id(a), id(b))
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self.assertEqual(a, b)
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def test_reduce_ex(self):
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a = array.array(self.typecode, self.example)
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for protocol in range(3):
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self.assertIs(a.__reduce_ex__(protocol)[0], array.array)
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for protocol in range(3, pickle.HIGHEST_PROTOCOL + 1):
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self.assertIs(a.__reduce_ex__(protocol)[0], array_reconstructor)
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def test_pickle(self):
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for protocol in range(pickle.HIGHEST_PROTOCOL + 1):
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a = array.array(self.typecode, self.example)
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b = pickle.loads(pickle.dumps(a, protocol))
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self.assertNotEqual(id(a), id(b))
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self.assertEqual(a, b)
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a = ArraySubclass(self.typecode, self.example)
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a.x = 10
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b = pickle.loads(pickle.dumps(a, protocol))
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self.assertNotEqual(id(a), id(b))
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self.assertEqual(a, b)
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self.assertEqual(a.x, b.x)
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self.assertEqual(type(a), type(b))
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def test_pickle_for_empty_array(self):
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for protocol in range(pickle.HIGHEST_PROTOCOL + 1):
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a = array.array(self.typecode)
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b = pickle.loads(pickle.dumps(a, protocol))
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self.assertNotEqual(id(a), id(b))
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self.assertEqual(a, b)
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a = ArraySubclass(self.typecode)
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a.x = 10
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b = pickle.loads(pickle.dumps(a, protocol))
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self.assertNotEqual(id(a), id(b))
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self.assertEqual(a, b)
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self.assertEqual(a.x, b.x)
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self.assertEqual(type(a), type(b))
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def test_iterator_pickle(self):
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orig = array.array(self.typecode, self.example)
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data = list(orig)
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data2 = data[::-1]
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for proto in range(pickle.HIGHEST_PROTOCOL + 1):
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# initial iterator
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itorig = iter(orig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.fromlist(data2)
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self.assertEqual(type(it), type(itorig))
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self.assertEqual(list(it), data + data2)
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# running iterator
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next(itorig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.fromlist(data2)
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self.assertEqual(type(it), type(itorig))
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self.assertEqual(list(it), data[1:] + data2)
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# empty iterator
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for i in range(1, len(data)):
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next(itorig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.fromlist(data2)
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self.assertEqual(type(it), type(itorig))
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self.assertEqual(list(it), data2)
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# exhausted iterator
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self.assertRaises(StopIteration, next, itorig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.fromlist(data2)
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self.assertEqual(list(it), [])
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def test_exhausted_iterator(self):
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a = array.array(self.typecode, self.example)
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self.assertEqual(list(a), list(self.example))
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exhit = iter(a)
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empit = iter(a)
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for x in exhit: # exhaust the iterator
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next(empit) # not exhausted
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a.append(self.outside)
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self.assertEqual(list(exhit), [])
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self.assertEqual(list(empit), [self.outside])
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self.assertEqual(list(a), list(self.example) + [self.outside])
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def test_reverse_iterator(self):
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a = array.array(self.typecode, self.example)
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self.assertEqual(list(a), list(self.example))
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self.assertEqual(list(reversed(a)), list(iter(a))[::-1])
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def test_reverse_iterator_picking(self):
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orig = array.array(self.typecode, self.example)
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data = list(orig)
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data2 = [self.outside] + data
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rev_data = data[len(data)-2::-1] + [self.outside]
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for proto in range(pickle.HIGHEST_PROTOCOL + 1):
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# initial iterator
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itorig = reversed(orig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.insert(0, self.outside)
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self.assertEqual(type(it), type(itorig))
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self.assertEqual(list(it), rev_data)
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self.assertEqual(list(a), data2)
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# running iterator
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next(itorig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.insert(0, self.outside)
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self.assertEqual(type(it), type(itorig))
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self.assertEqual(list(it), rev_data[1:])
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self.assertEqual(list(a), data2)
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# empty iterator
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for i in range(1, len(data)):
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next(itorig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.insert(0, self.outside)
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self.assertEqual(type(it), type(itorig))
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self.assertEqual(list(it), [])
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self.assertEqual(list(a), data2)
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# exhausted iterator
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self.assertRaises(StopIteration, next, itorig)
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d = pickle.dumps((itorig, orig), proto)
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it, a = pickle.loads(d)
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a.insert(0, self.outside)
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self.assertEqual(list(it), [])
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self.assertEqual(list(a), data2)
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def test_exhausted_reverse_iterator(self):
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a = array.array(self.typecode, self.example)
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self.assertEqual(list(a), list(self.example))
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exhit = reversed(a)
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empit = reversed(a)
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for x in exhit: # exhaust the iterator
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next(empit) # Pointing past the 0th position.
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a.insert(0, self.outside)
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self.assertEqual(list(exhit), [])
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# The iterator index points past the 0th position so inserting
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# an element in the beginning does not make it appear.
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self.assertEqual(list(empit), [])
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self.assertEqual(list(a), [self.outside] + list(self.example))
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def test_insert(self):
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a = array.array(self.typecode, self.example)
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a.insert(0, self.example[0])
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self.assertEqual(len(a), 1+len(self.example))
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self.assertEqual(a[0], a[1])
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self.assertRaises(TypeError, a.insert)
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self.assertRaises(TypeError, a.insert, None)
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self.assertRaises(TypeError, a.insert, 0, None)
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a = array.array(self.typecode, self.example)
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a.insert(-1, self.example[0])
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self.assertEqual(
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a,
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array.array(
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self.typecode,
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self.example[:-1] + self.example[:1] + self.example[-1:]
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)
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)
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a = array.array(self.typecode, self.example)
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a.insert(-1000, self.example[0])
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[:1] + self.example)
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)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a.insert(1000, self.example[0])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example + self.example[:1])
|
|
)
|
|
|
|
def test_tofromfile(self):
|
|
a = array.array(self.typecode, 2*self.example)
|
|
self.assertRaises(TypeError, a.tofile)
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
f = open(os_helper.TESTFN, 'wb')
|
|
try:
|
|
a.tofile(f)
|
|
f.close()
|
|
b = array.array(self.typecode)
|
|
f = open(os_helper.TESTFN, 'rb')
|
|
self.assertRaises(TypeError, b.fromfile)
|
|
b.fromfile(f, len(self.example))
|
|
self.assertEqual(b, array.array(self.typecode, self.example))
|
|
self.assertNotEqual(a, b)
|
|
self.assertRaises(EOFError, b.fromfile, f, len(self.example)+1)
|
|
self.assertEqual(a, b)
|
|
f.close()
|
|
finally:
|
|
if not f.closed:
|
|
f.close()
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
def test_fromfile_ioerror(self):
|
|
# Issue #5395: Check if fromfile raises a proper OSError
|
|
# instead of EOFError.
|
|
a = array.array(self.typecode)
|
|
f = open(os_helper.TESTFN, 'wb')
|
|
try:
|
|
self.assertRaises(OSError, a.fromfile, f, len(self.example))
|
|
finally:
|
|
f.close()
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
def test_filewrite(self):
|
|
a = array.array(self.typecode, 2*self.example)
|
|
f = open(os_helper.TESTFN, 'wb')
|
|
try:
|
|
f.write(a)
|
|
f.close()
|
|
b = array.array(self.typecode)
|
|
f = open(os_helper.TESTFN, 'rb')
|
|
b.fromfile(f, len(self.example))
|
|
self.assertEqual(b, array.array(self.typecode, self.example))
|
|
self.assertNotEqual(a, b)
|
|
b.fromfile(f, len(self.example))
|
|
self.assertEqual(a, b)
|
|
f.close()
|
|
finally:
|
|
if not f.closed:
|
|
f.close()
|
|
os_helper.unlink(os_helper.TESTFN)
|
|
|
|
def test_tofromlist(self):
|
|
a = array.array(self.typecode, 2*self.example)
|
|
b = array.array(self.typecode)
|
|
self.assertRaises(TypeError, a.tolist, 42)
|
|
self.assertRaises(TypeError, b.fromlist)
|
|
self.assertRaises(TypeError, b.fromlist, 42)
|
|
self.assertRaises(TypeError, b.fromlist, [None])
|
|
b.fromlist(a.tolist())
|
|
self.assertEqual(a, b)
|
|
|
|
def test_tofrombytes(self):
|
|
a = array.array(self.typecode, 2*self.example)
|
|
b = array.array(self.typecode)
|
|
self.assertRaises(TypeError, a.tobytes, 42)
|
|
self.assertRaises(TypeError, b.frombytes)
|
|
self.assertRaises(TypeError, b.frombytes, 42)
|
|
b.frombytes(a.tobytes())
|
|
c = array.array(self.typecode, bytearray(a.tobytes()))
|
|
self.assertEqual(a, b)
|
|
self.assertEqual(a, c)
|
|
if a.itemsize>1:
|
|
self.assertRaises(ValueError, b.frombytes, b"x")
|
|
|
|
def test_fromarray(self):
|
|
a = array.array(self.typecode, self.example)
|
|
b = array.array(self.typecode, a)
|
|
self.assertEqual(a, b)
|
|
|
|
def test_repr(self):
|
|
a = array.array(self.typecode, 2*self.example)
|
|
self.assertEqual(a, eval(repr(a), {"array": array.array}))
|
|
|
|
a = array.array(self.typecode)
|
|
self.assertEqual(repr(a), "array('%s')" % self.typecode)
|
|
|
|
def test_str(self):
|
|
a = array.array(self.typecode, 2*self.example)
|
|
str(a)
|
|
|
|
def test_cmp(self):
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertIs(a == 42, False)
|
|
self.assertIs(a != 42, True)
|
|
|
|
self.assertIs(a == a, True)
|
|
self.assertIs(a != a, False)
|
|
self.assertIs(a < a, False)
|
|
self.assertIs(a <= a, True)
|
|
self.assertIs(a > a, False)
|
|
self.assertIs(a >= a, True)
|
|
|
|
al = array.array(self.typecode, self.smallerexample)
|
|
ab = array.array(self.typecode, self.biggerexample)
|
|
|
|
self.assertIs(a == 2*a, False)
|
|
self.assertIs(a != 2*a, True)
|
|
self.assertIs(a < 2*a, True)
|
|
self.assertIs(a <= 2*a, True)
|
|
self.assertIs(a > 2*a, False)
|
|
self.assertIs(a >= 2*a, False)
|
|
|
|
self.assertIs(a == al, False)
|
|
self.assertIs(a != al, True)
|
|
self.assertIs(a < al, False)
|
|
self.assertIs(a <= al, False)
|
|
self.assertIs(a > al, True)
|
|
self.assertIs(a >= al, True)
|
|
|
|
self.assertIs(a == ab, False)
|
|
self.assertIs(a != ab, True)
|
|
self.assertIs(a < ab, True)
|
|
self.assertIs(a <= ab, True)
|
|
self.assertIs(a > ab, False)
|
|
self.assertIs(a >= ab, False)
|
|
|
|
def test_add(self):
|
|
a = array.array(self.typecode, self.example) \
|
|
+ array.array(self.typecode, self.example[::-1])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example + self.example[::-1])
|
|
)
|
|
|
|
b = array.array(self.badtypecode())
|
|
self.assertRaises(TypeError, a.__add__, b)
|
|
|
|
self.assertRaises(TypeError, a.__add__, "bad")
|
|
|
|
def test_iadd(self):
|
|
a = array.array(self.typecode, self.example[::-1])
|
|
b = a
|
|
a += array.array(self.typecode, 2*self.example)
|
|
self.assertIs(a, b)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[::-1]+2*self.example)
|
|
)
|
|
a = array.array(self.typecode, self.example)
|
|
a += a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example + self.example)
|
|
)
|
|
|
|
b = array.array(self.badtypecode())
|
|
self.assertRaises(TypeError, a.__add__, b)
|
|
|
|
self.assertRaises(TypeError, a.__iadd__, "bad")
|
|
|
|
def test_mul(self):
|
|
a = 5*array.array(self.typecode, self.example)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, 5*self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)*5
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example*5)
|
|
)
|
|
|
|
a = 0*array.array(self.typecode, self.example)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode)
|
|
)
|
|
|
|
a = (-1)*array.array(self.typecode, self.example)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode)
|
|
)
|
|
|
|
a = 5 * array.array(self.typecode, self.example[:1])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, [a[0]] * 5)
|
|
)
|
|
|
|
self.assertRaises(TypeError, a.__mul__, "bad")
|
|
|
|
def test_imul(self):
|
|
a = array.array(self.typecode, self.example)
|
|
b = a
|
|
|
|
a *= 5
|
|
self.assertIs(a, b)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, 5*self.example)
|
|
)
|
|
|
|
a *= 0
|
|
self.assertIs(a, b)
|
|
self.assertEqual(a, array.array(self.typecode))
|
|
|
|
a *= 1000
|
|
self.assertIs(a, b)
|
|
self.assertEqual(a, array.array(self.typecode))
|
|
|
|
a *= -1
|
|
self.assertIs(a, b)
|
|
self.assertEqual(a, array.array(self.typecode))
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a *= -1
|
|
self.assertEqual(a, array.array(self.typecode))
|
|
|
|
self.assertRaises(TypeError, a.__imul__, "bad")
|
|
|
|
def test_getitem(self):
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertEntryEqual(a[0], self.example[0])
|
|
self.assertEntryEqual(a[0], self.example[0])
|
|
self.assertEntryEqual(a[-1], self.example[-1])
|
|
self.assertEntryEqual(a[-1], self.example[-1])
|
|
self.assertEntryEqual(a[len(self.example)-1], self.example[-1])
|
|
self.assertEntryEqual(a[-len(self.example)], self.example[0])
|
|
self.assertRaises(TypeError, a.__getitem__)
|
|
self.assertRaises(IndexError, a.__getitem__, len(self.example))
|
|
self.assertRaises(IndexError, a.__getitem__, -len(self.example)-1)
|
|
|
|
def test_setitem(self):
|
|
a = array.array(self.typecode, self.example)
|
|
a[0] = a[-1]
|
|
self.assertEntryEqual(a[0], a[-1])
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[0] = a[-1]
|
|
self.assertEntryEqual(a[0], a[-1])
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[-1] = a[0]
|
|
self.assertEntryEqual(a[0], a[-1])
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[-1] = a[0]
|
|
self.assertEntryEqual(a[0], a[-1])
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[len(self.example)-1] = a[0]
|
|
self.assertEntryEqual(a[0], a[-1])
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[-len(self.example)] = a[-1]
|
|
self.assertEntryEqual(a[0], a[-1])
|
|
|
|
self.assertRaises(TypeError, a.__setitem__)
|
|
self.assertRaises(TypeError, a.__setitem__, None)
|
|
self.assertRaises(TypeError, a.__setitem__, 0, None)
|
|
self.assertRaises(
|
|
IndexError,
|
|
a.__setitem__,
|
|
len(self.example), self.example[0]
|
|
)
|
|
self.assertRaises(
|
|
IndexError,
|
|
a.__setitem__,
|
|
-len(self.example)-1, self.example[0]
|
|
)
|
|
|
|
def test_delitem(self):
|
|
a = array.array(self.typecode, self.example)
|
|
del a[0]
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[1:])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
del a[-1]
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[:-1])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
del a[len(self.example)-1]
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[:-1])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
del a[-len(self.example)]
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[1:])
|
|
)
|
|
|
|
self.assertRaises(TypeError, a.__delitem__)
|
|
self.assertRaises(TypeError, a.__delitem__, None)
|
|
self.assertRaises(IndexError, a.__delitem__, len(self.example))
|
|
self.assertRaises(IndexError, a.__delitem__, -len(self.example)-1)
|
|
|
|
def test_getslice(self):
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertEqual(a[:], a)
|
|
|
|
self.assertEqual(
|
|
a[1:],
|
|
array.array(self.typecode, self.example[1:])
|
|
)
|
|
|
|
self.assertEqual(
|
|
a[:1],
|
|
array.array(self.typecode, self.example[:1])
|
|
)
|
|
|
|
self.assertEqual(
|
|
a[:-1],
|
|
array.array(self.typecode, self.example[:-1])
|
|
)
|
|
|
|
self.assertEqual(
|
|
a[-1:],
|
|
array.array(self.typecode, self.example[-1:])
|
|
)
|
|
|
|
self.assertEqual(
|
|
a[-1:-1],
|
|
array.array(self.typecode)
|
|
)
|
|
|
|
self.assertEqual(
|
|
a[2:1],
|
|
array.array(self.typecode)
|
|
)
|
|
|
|
self.assertEqual(
|
|
a[1000:],
|
|
array.array(self.typecode)
|
|
)
|
|
self.assertEqual(a[-1000:], a)
|
|
self.assertEqual(a[:1000], a)
|
|
self.assertEqual(
|
|
a[:-1000],
|
|
array.array(self.typecode)
|
|
)
|
|
self.assertEqual(a[-1000:1000], a)
|
|
self.assertEqual(
|
|
a[2000:1000],
|
|
array.array(self.typecode)
|
|
)
|
|
|
|
def test_extended_getslice(self):
|
|
# Test extended slicing by comparing with list slicing
|
|
# (Assumes list conversion works correctly, too)
|
|
a = array.array(self.typecode, self.example)
|
|
indices = (0, None, 1, 3, 19, 100, sys.maxsize, -1, -2, -31, -100)
|
|
for start in indices:
|
|
for stop in indices:
|
|
# Everything except the initial 0 (invalid step)
|
|
for step in indices[1:]:
|
|
self.assertEqual(list(a[start:stop:step]),
|
|
list(a)[start:stop:step])
|
|
|
|
def test_setslice(self):
|
|
a = array.array(self.typecode, self.example)
|
|
a[:1] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example + self.example[1:])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[:-1] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example + self.example[-1:])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[-1:] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[:-1] + self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[1:] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[:1] + self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[1:-1] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(
|
|
self.typecode,
|
|
self.example[:1] + self.example + self.example[-1:]
|
|
)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[1000:] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, 2*self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[-1000:] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[:1000] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[:-1000] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, 2*self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[1:0] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[:1] + self.example + self.example[1:])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a[2000:1000] = a
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, 2*self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertRaises(TypeError, a.__setitem__, slice(0, 0), None)
|
|
self.assertRaises(TypeError, a.__setitem__, slice(0, 1), None)
|
|
|
|
b = array.array(self.badtypecode())
|
|
self.assertRaises(TypeError, a.__setitem__, slice(0, 0), b)
|
|
self.assertRaises(TypeError, a.__setitem__, slice(0, 1), b)
|
|
|
|
def test_extended_set_del_slice(self):
|
|
indices = (0, None, 1, 3, 19, 100, sys.maxsize, -1, -2, -31, -100)
|
|
for start in indices:
|
|
for stop in indices:
|
|
# Everything except the initial 0 (invalid step)
|
|
for step in indices[1:]:
|
|
a = array.array(self.typecode, self.example)
|
|
L = list(a)
|
|
# Make sure we have a slice of exactly the right length,
|
|
# but with (hopefully) different data.
|
|
data = L[start:stop:step]
|
|
data.reverse()
|
|
L[start:stop:step] = data
|
|
a[start:stop:step] = array.array(self.typecode, data)
|
|
self.assertEqual(a, array.array(self.typecode, L))
|
|
|
|
del L[start:stop:step]
|
|
del a[start:stop:step]
|
|
self.assertEqual(a, array.array(self.typecode, L))
|
|
|
|
def test_index(self):
|
|
example = 2*self.example
|
|
a = array.array(self.typecode, example)
|
|
self.assertRaises(TypeError, a.index)
|
|
for x in example:
|
|
self.assertEqual(a.index(x), example.index(x))
|
|
self.assertRaises(ValueError, a.index, None)
|
|
self.assertRaises(ValueError, a.index, self.outside)
|
|
|
|
a = array.array('i', [-2, -1, 0, 0, 1, 2])
|
|
self.assertEqual(a.index(0), 2)
|
|
self.assertEqual(a.index(0, 2), 2)
|
|
self.assertEqual(a.index(0, -4), 2)
|
|
self.assertEqual(a.index(-2, -10), 0)
|
|
self.assertEqual(a.index(0, 3), 3)
|
|
self.assertEqual(a.index(0, -3), 3)
|
|
self.assertEqual(a.index(0, 3, 4), 3)
|
|
self.assertEqual(a.index(0, -3, -2), 3)
|
|
self.assertRaises(ValueError, a.index, 2, 0, -10)
|
|
|
|
def test_count(self):
|
|
example = 2*self.example
|
|
a = array.array(self.typecode, example)
|
|
self.assertRaises(TypeError, a.count)
|
|
for x in example:
|
|
self.assertEqual(a.count(x), example.count(x))
|
|
self.assertEqual(a.count(self.outside), 0)
|
|
self.assertEqual(a.count(None), 0)
|
|
|
|
def test_remove(self):
|
|
for x in self.example:
|
|
example = 2*self.example
|
|
a = array.array(self.typecode, example)
|
|
pos = example.index(x)
|
|
example2 = example[:pos] + example[pos+1:]
|
|
a.remove(x)
|
|
self.assertEqual(a, array.array(self.typecode, example2))
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertRaises(ValueError, a.remove, self.outside)
|
|
|
|
self.assertRaises(ValueError, a.remove, None)
|
|
|
|
def test_pop(self):
|
|
a = array.array(self.typecode)
|
|
self.assertRaises(IndexError, a.pop)
|
|
|
|
a = array.array(self.typecode, 2*self.example)
|
|
self.assertRaises(TypeError, a.pop, 42, 42)
|
|
self.assertRaises(TypeError, a.pop, None)
|
|
self.assertRaises(IndexError, a.pop, len(a))
|
|
self.assertRaises(IndexError, a.pop, -len(a)-1)
|
|
|
|
self.assertEntryEqual(a.pop(0), self.example[0])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[1:]+self.example)
|
|
)
|
|
self.assertEntryEqual(a.pop(1), self.example[2])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[1:2]+self.example[3:]+self.example)
|
|
)
|
|
self.assertEntryEqual(a.pop(0), self.example[1])
|
|
self.assertEntryEqual(a.pop(), self.example[-1])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[3:]+self.example[:-1])
|
|
)
|
|
|
|
def test_clear(self):
|
|
a = array.array(self.typecode, self.example)
|
|
with self.assertRaises(TypeError):
|
|
a.clear(42)
|
|
a.clear()
|
|
self.assertEqual(len(a), 0)
|
|
self.assertEqual(a.typecode, self.typecode)
|
|
|
|
a = array.array(self.typecode)
|
|
a.clear()
|
|
self.assertEqual(len(a), 0)
|
|
self.assertEqual(a.typecode, self.typecode)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a.clear()
|
|
a.append(self.example[2])
|
|
a.append(self.example[3])
|
|
self.assertEqual(a, array.array(self.typecode, self.example[2:4]))
|
|
|
|
with memoryview(a):
|
|
with self.assertRaises(BufferError):
|
|
a.clear()
|
|
|
|
def test_reverse(self):
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertRaises(TypeError, a.reverse, 42)
|
|
a.reverse()
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example[::-1])
|
|
)
|
|
|
|
def test_extend(self):
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertRaises(TypeError, a.extend)
|
|
a.extend(array.array(self.typecode, self.example[::-1]))
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example+self.example[::-1])
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a.extend(a)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example+self.example)
|
|
)
|
|
|
|
b = array.array(self.badtypecode())
|
|
self.assertRaises(TypeError, a.extend, b)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a.extend(self.example[::-1])
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example+self.example[::-1])
|
|
)
|
|
|
|
def test_constructor_with_iterable_argument(self):
|
|
a = array.array(self.typecode, iter(self.example))
|
|
b = array.array(self.typecode, self.example)
|
|
self.assertEqual(a, b)
|
|
|
|
# non-iterable argument
|
|
self.assertRaises(TypeError, array.array, self.typecode, 10)
|
|
|
|
# pass through errors raised in __iter__
|
|
class A:
|
|
def __iter__(self):
|
|
raise UnicodeError
|
|
self.assertRaises(UnicodeError, array.array, self.typecode, A())
|
|
|
|
# pass through errors raised in next()
|
|
def B():
|
|
raise UnicodeError
|
|
yield None
|
|
self.assertRaises(UnicodeError, array.array, self.typecode, B())
|
|
|
|
def test_coveritertraverse(self):
|
|
try:
|
|
import gc
|
|
except ImportError:
|
|
self.skipTest('gc module not available')
|
|
a = array.array(self.typecode)
|
|
l = [iter(a)]
|
|
l.append(l)
|
|
gc.collect()
|
|
|
|
def test_buffer(self):
|
|
a = array.array(self.typecode, self.example)
|
|
m = memoryview(a)
|
|
expected = m.tobytes()
|
|
self.assertEqual(a.tobytes(), expected)
|
|
self.assertEqual(a.tobytes()[0], expected[0])
|
|
# Resizing is forbidden when there are buffer exports.
|
|
# For issue 4509, we also check after each error that
|
|
# the array was not modified.
|
|
self.assertRaises(BufferError, a.append, a[0])
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, a.extend, a[0:1])
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, a.remove, a[0])
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, a.pop, 0)
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, a.fromlist, a.tolist())
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, a.frombytes, a.tobytes())
|
|
self.assertEqual(m.tobytes(), expected)
|
|
if self.typecode in ('u', 'w'):
|
|
self.assertRaises(BufferError, a.fromunicode, a.tounicode())
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, operator.imul, a, 2)
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, operator.imul, a, 0)
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, operator.setitem, a, slice(0, 0), a)
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, operator.delitem, a, 0)
|
|
self.assertEqual(m.tobytes(), expected)
|
|
self.assertRaises(BufferError, operator.delitem, a, slice(0, 1))
|
|
self.assertEqual(m.tobytes(), expected)
|
|
|
|
def test_weakref(self):
|
|
s = array.array(self.typecode, self.example)
|
|
p = weakref.proxy(s)
|
|
self.assertEqual(p.tobytes(), s.tobytes())
|
|
s = None
|
|
support.gc_collect() # For PyPy or other GCs.
|
|
self.assertRaises(ReferenceError, len, p)
|
|
|
|
@unittest.skipUnless(hasattr(sys, 'getrefcount'),
|
|
'test needs sys.getrefcount()')
|
|
def test_bug_782369(self):
|
|
for i in range(10):
|
|
b = array.array('B', range(64))
|
|
rc = sys.getrefcount(10)
|
|
for i in range(10):
|
|
b = array.array('B', range(64))
|
|
self.assertEqual(rc, sys.getrefcount(10))
|
|
|
|
def test_subclass_with_kwargs(self):
|
|
# SF bug #1486663 -- this used to erroneously raise a TypeError
|
|
ArraySubclassWithKwargs('b', newarg=1)
|
|
|
|
def test_create_from_bytes(self):
|
|
# XXX This test probably needs to be moved in a subclass or
|
|
# generalized to use self.typecode.
|
|
a = array.array('H', b"1234")
|
|
self.assertEqual(len(a) * a.itemsize, 4)
|
|
|
|
@support.cpython_only
|
|
def test_sizeof_with_buffer(self):
|
|
a = array.array(self.typecode, self.example)
|
|
basesize = support.calcvobjsize('Pn2Pi')
|
|
buffer_size = a.buffer_info()[1] * a.itemsize
|
|
support.check_sizeof(self, a, basesize + buffer_size)
|
|
|
|
@support.cpython_only
|
|
def test_sizeof_without_buffer(self):
|
|
a = array.array(self.typecode)
|
|
basesize = support.calcvobjsize('Pn2Pi')
|
|
support.check_sizeof(self, a, basesize)
|
|
|
|
def test_initialize_with_unicode(self):
|
|
if self.typecode not in ('u', 'w'):
|
|
with self.assertRaises(TypeError) as cm:
|
|
a = array.array(self.typecode, 'foo')
|
|
self.assertIn("cannot use a str", str(cm.exception))
|
|
with self.assertRaises(TypeError) as cm:
|
|
a = array.array(self.typecode, array.array('w', 'foo'))
|
|
self.assertIn("cannot use a unicode array", str(cm.exception))
|
|
else:
|
|
a = array.array(self.typecode, "foo")
|
|
a = array.array(self.typecode, array.array('u', 'foo'))
|
|
a = array.array(self.typecode, array.array('w', 'foo'))
|
|
|
|
@support.cpython_only
|
|
def test_obsolete_write_lock(self):
|
|
_testcapi = import_helper.import_module('_testcapi')
|
|
a = array.array('B', b"")
|
|
self.assertRaises(BufferError, _testcapi.getbuffer_with_null_view, a)
|
|
|
|
def test_free_after_iterating(self):
|
|
support.check_free_after_iterating(self, iter, array.array,
|
|
(self.typecode,))
|
|
support.check_free_after_iterating(self, reversed, array.array,
|
|
(self.typecode,))
|
|
|
|
class StringTest(BaseTest):
|
|
|
|
def test_setitem(self):
|
|
super().test_setitem()
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertRaises(TypeError, a.__setitem__, 0, self.example[:2])
|
|
|
|
class UnicodeTest(StringTest, unittest.TestCase):
|
|
typecode = 'u'
|
|
example = '\x01\u263a\x00\ufeff'
|
|
smallerexample = '\x01\u263a\x00\ufefe'
|
|
biggerexample = '\x01\u263a\x01\ufeff'
|
|
outside = str('\x33')
|
|
minitemsize = sizeof_wchar
|
|
|
|
def test_unicode(self):
|
|
self.assertRaises(TypeError, array.array, 'b', 'foo')
|
|
|
|
a = array.array(self.typecode, '\xa0\xc2\u1234')
|
|
a.fromunicode(' ')
|
|
a.fromunicode('')
|
|
a.fromunicode('')
|
|
a.fromunicode('\x11abc\xff\u1234')
|
|
s = a.tounicode()
|
|
self.assertEqual(s, '\xa0\xc2\u1234 \x11abc\xff\u1234')
|
|
self.assertEqual(a.itemsize, self.minitemsize)
|
|
|
|
s = '\x00="\'a\\b\x80\xff\u0000\u0001\u1234'
|
|
a = array.array(self.typecode, s)
|
|
self.assertEqual(
|
|
repr(a),
|
|
f"array('{self.typecode}', '\\x00=\"\\'a\\\\b\\x80\xff\\x00\\x01\u1234')")
|
|
|
|
self.assertRaises(TypeError, a.fromunicode)
|
|
|
|
def test_issue17223(self):
|
|
if self.typecode == 'u' and sizeof_wchar == 2:
|
|
# PyUnicode_FromUnicode() cannot fail with 16-bit wchar_t
|
|
self.skipTest("specific to 32-bit wchar_t")
|
|
|
|
# this used to crash
|
|
# U+FFFFFFFF is an invalid code point in Unicode 6.0
|
|
invalid_str = b'\xff\xff\xff\xff'
|
|
|
|
a = array.array(self.typecode, invalid_str)
|
|
self.assertRaises(ValueError, a.tounicode)
|
|
self.assertRaises(ValueError, str, a)
|
|
|
|
def test_typecode_u_deprecation(self):
|
|
with self.assertWarns(DeprecationWarning):
|
|
array.array("u")
|
|
|
|
|
|
class UCS4Test(UnicodeTest):
|
|
typecode = 'w'
|
|
minitemsize = 4
|
|
|
|
|
|
class NumberTest(BaseTest):
|
|
|
|
def test_extslice(self):
|
|
a = array.array(self.typecode, range(5))
|
|
self.assertEqual(a[::], a)
|
|
self.assertEqual(a[::2], array.array(self.typecode, [0,2,4]))
|
|
self.assertEqual(a[1::2], array.array(self.typecode, [1,3]))
|
|
self.assertEqual(a[::-1], array.array(self.typecode, [4,3,2,1,0]))
|
|
self.assertEqual(a[::-2], array.array(self.typecode, [4,2,0]))
|
|
self.assertEqual(a[3::-2], array.array(self.typecode, [3,1]))
|
|
self.assertEqual(a[-100:100:], a)
|
|
self.assertEqual(a[100:-100:-1], a[::-1])
|
|
self.assertEqual(a[-100:100:2], array.array(self.typecode, [0,2,4]))
|
|
self.assertEqual(a[1000:2000:2], array.array(self.typecode, []))
|
|
self.assertEqual(a[-1000:-2000:-2], array.array(self.typecode, []))
|
|
|
|
def test_delslice(self):
|
|
a = array.array(self.typecode, range(5))
|
|
del a[::2]
|
|
self.assertEqual(a, array.array(self.typecode, [1,3]))
|
|
a = array.array(self.typecode, range(5))
|
|
del a[1::2]
|
|
self.assertEqual(a, array.array(self.typecode, [0,2,4]))
|
|
a = array.array(self.typecode, range(5))
|
|
del a[1::-2]
|
|
self.assertEqual(a, array.array(self.typecode, [0,2,3,4]))
|
|
a = array.array(self.typecode, range(10))
|
|
del a[::1000]
|
|
self.assertEqual(a, array.array(self.typecode, [1,2,3,4,5,6,7,8,9]))
|
|
# test issue7788
|
|
a = array.array(self.typecode, range(10))
|
|
del a[9::1<<333]
|
|
|
|
def test_assignment(self):
|
|
a = array.array(self.typecode, range(10))
|
|
a[::2] = array.array(self.typecode, [42]*5)
|
|
self.assertEqual(a, array.array(self.typecode, [42, 1, 42, 3, 42, 5, 42, 7, 42, 9]))
|
|
a = array.array(self.typecode, range(10))
|
|
a[::-4] = array.array(self.typecode, [10]*3)
|
|
self.assertEqual(a, array.array(self.typecode, [0, 10, 2, 3, 4, 10, 6, 7, 8 ,10]))
|
|
a = array.array(self.typecode, range(4))
|
|
a[::-1] = a
|
|
self.assertEqual(a, array.array(self.typecode, [3, 2, 1, 0]))
|
|
a = array.array(self.typecode, range(10))
|
|
b = a[:]
|
|
c = a[:]
|
|
ins = array.array(self.typecode, range(2))
|
|
a[2:3] = ins
|
|
b[slice(2,3)] = ins
|
|
c[2:3:] = ins
|
|
|
|
def test_iterationcontains(self):
|
|
a = array.array(self.typecode, range(10))
|
|
self.assertEqual(list(a), list(range(10)))
|
|
b = array.array(self.typecode, [20])
|
|
self.assertEqual(a[-1] in a, True)
|
|
self.assertEqual(b[0] not in a, True)
|
|
|
|
def check_overflow(self, lower, upper):
|
|
# method to be used by subclasses
|
|
|
|
# should not overflow assigning lower limit
|
|
a = array.array(self.typecode, [lower])
|
|
a[0] = lower
|
|
# should overflow assigning less than lower limit
|
|
self.assertRaises(OverflowError, array.array, self.typecode, [lower-1])
|
|
self.assertRaises(OverflowError, a.__setitem__, 0, lower-1)
|
|
# should not overflow assigning upper limit
|
|
a = array.array(self.typecode, [upper])
|
|
a[0] = upper
|
|
# should overflow assigning more than upper limit
|
|
self.assertRaises(OverflowError, array.array, self.typecode, [upper+1])
|
|
self.assertRaises(OverflowError, a.__setitem__, 0, upper+1)
|
|
|
|
def test_subclassing(self):
|
|
typecode = self.typecode
|
|
class ExaggeratingArray(array.array):
|
|
__slots__ = ['offset']
|
|
|
|
def __new__(cls, typecode, data, offset):
|
|
return array.array.__new__(cls, typecode, data)
|
|
|
|
def __init__(self, typecode, data, offset):
|
|
self.offset = offset
|
|
|
|
def __getitem__(self, i):
|
|
return array.array.__getitem__(self, i) + self.offset
|
|
|
|
a = ExaggeratingArray(self.typecode, [3, 6, 7, 11], 4)
|
|
self.assertEntryEqual(a[0], 7)
|
|
|
|
self.assertRaises(AttributeError, setattr, a, "color", "blue")
|
|
|
|
def test_frombytearray(self):
|
|
a = array.array('b', range(10))
|
|
b = array.array(self.typecode, a)
|
|
self.assertEqual(a, b)
|
|
|
|
class IntegerNumberTest(NumberTest):
|
|
def test_type_error(self):
|
|
a = array.array(self.typecode)
|
|
a.append(42)
|
|
with self.assertRaises(TypeError):
|
|
a.append(42.0)
|
|
with self.assertRaises(TypeError):
|
|
a[0] = 42.0
|
|
|
|
class Intable:
|
|
def __init__(self, num):
|
|
self._num = num
|
|
def __index__(self):
|
|
return self._num
|
|
def __int__(self):
|
|
return self._num
|
|
def __sub__(self, other):
|
|
return Intable(int(self) - int(other))
|
|
def __add__(self, other):
|
|
return Intable(int(self) + int(other))
|
|
|
|
class SignedNumberTest(IntegerNumberTest):
|
|
example = [-1, 0, 1, 42, 0x7f]
|
|
smallerexample = [-1, 0, 1, 42, 0x7e]
|
|
biggerexample = [-1, 0, 1, 43, 0x7f]
|
|
outside = 23
|
|
|
|
def test_overflow(self):
|
|
a = array.array(self.typecode)
|
|
lower = -1 * int(pow(2, a.itemsize * 8 - 1))
|
|
upper = int(pow(2, a.itemsize * 8 - 1)) - 1
|
|
self.check_overflow(lower, upper)
|
|
self.check_overflow(Intable(lower), Intable(upper))
|
|
|
|
class UnsignedNumberTest(IntegerNumberTest):
|
|
example = [0, 1, 17, 23, 42, 0xff]
|
|
smallerexample = [0, 1, 17, 23, 42, 0xfe]
|
|
biggerexample = [0, 1, 17, 23, 43, 0xff]
|
|
outside = 0xaa
|
|
|
|
def test_overflow(self):
|
|
a = array.array(self.typecode)
|
|
lower = 0
|
|
upper = int(pow(2, a.itemsize * 8)) - 1
|
|
self.check_overflow(lower, upper)
|
|
self.check_overflow(Intable(lower), Intable(upper))
|
|
|
|
def test_bytes_extend(self):
|
|
s = bytes(self.example)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a.extend(s)
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example+self.example)
|
|
)
|
|
|
|
a = array.array(self.typecode, self.example)
|
|
a.extend(bytearray(reversed(s)))
|
|
self.assertEqual(
|
|
a,
|
|
array.array(self.typecode, self.example+self.example[::-1])
|
|
)
|
|
|
|
|
|
class ByteTest(SignedNumberTest, unittest.TestCase):
|
|
typecode = 'b'
|
|
minitemsize = 1
|
|
|
|
class UnsignedByteTest(UnsignedNumberTest, unittest.TestCase):
|
|
typecode = 'B'
|
|
minitemsize = 1
|
|
|
|
class ShortTest(SignedNumberTest, unittest.TestCase):
|
|
typecode = 'h'
|
|
minitemsize = 2
|
|
|
|
class UnsignedShortTest(UnsignedNumberTest, unittest.TestCase):
|
|
typecode = 'H'
|
|
minitemsize = 2
|
|
|
|
class IntTest(SignedNumberTest, unittest.TestCase):
|
|
typecode = 'i'
|
|
minitemsize = 2
|
|
|
|
class UnsignedIntTest(UnsignedNumberTest, unittest.TestCase):
|
|
typecode = 'I'
|
|
minitemsize = 2
|
|
|
|
class LongTest(SignedNumberTest, unittest.TestCase):
|
|
typecode = 'l'
|
|
minitemsize = 4
|
|
|
|
class UnsignedLongTest(UnsignedNumberTest, unittest.TestCase):
|
|
typecode = 'L'
|
|
minitemsize = 4
|
|
|
|
class LongLongTest(SignedNumberTest, unittest.TestCase):
|
|
typecode = 'q'
|
|
minitemsize = 8
|
|
|
|
class UnsignedLongLongTest(UnsignedNumberTest, unittest.TestCase):
|
|
typecode = 'Q'
|
|
minitemsize = 8
|
|
|
|
class FPTest(NumberTest):
|
|
example = [-42.0, 0, 42, 1e5, -1e10]
|
|
smallerexample = [-42.0, 0, 42, 1e5, -2e10]
|
|
biggerexample = [-42.0, 0, 42, 1e5, 1e10]
|
|
outside = 23
|
|
|
|
def assertEntryEqual(self, entry1, entry2):
|
|
self.assertAlmostEqual(entry1, entry2)
|
|
|
|
def test_nan(self):
|
|
a = array.array(self.typecode, [float('nan')])
|
|
b = array.array(self.typecode, [float('nan')])
|
|
self.assertIs(a != b, True)
|
|
self.assertIs(a == b, False)
|
|
self.assertIs(a > b, False)
|
|
self.assertIs(a >= b, False)
|
|
self.assertIs(a < b, False)
|
|
self.assertIs(a <= b, False)
|
|
|
|
def test_byteswap(self):
|
|
a = array.array(self.typecode, self.example)
|
|
self.assertRaises(TypeError, a.byteswap, 42)
|
|
if a.itemsize in (1, 2, 4, 8):
|
|
b = array.array(self.typecode, self.example)
|
|
b.byteswap()
|
|
if a.itemsize==1:
|
|
self.assertEqual(a, b)
|
|
else:
|
|
# On alphas treating the byte swapped bit patters as
|
|
# floats/doubles results in floating-point exceptions
|
|
# => compare the 8bit string values instead
|
|
self.assertNotEqual(a.tobytes(), b.tobytes())
|
|
b.byteswap()
|
|
self.assertEqual(a, b)
|
|
|
|
class FloatTest(FPTest, unittest.TestCase):
|
|
typecode = 'f'
|
|
minitemsize = 4
|
|
|
|
class DoubleTest(FPTest, unittest.TestCase):
|
|
typecode = 'd'
|
|
minitemsize = 8
|
|
|
|
def test_alloc_overflow(self):
|
|
from sys import maxsize
|
|
a = array.array('d', [-1]*65536)
|
|
try:
|
|
a *= maxsize//65536 + 1
|
|
except MemoryError:
|
|
pass
|
|
else:
|
|
self.fail("Array of size > maxsize created - MemoryError expected")
|
|
b = array.array('d', [ 2.71828183, 3.14159265, -1])
|
|
try:
|
|
b * (maxsize//3 + 1)
|
|
except MemoryError:
|
|
pass
|
|
else:
|
|
self.fail("Array of size > maxsize created - MemoryError expected")
|
|
|
|
|
|
class LargeArrayTest(unittest.TestCase):
|
|
typecode = 'b'
|
|
|
|
def example(self, size):
|
|
# We assess a base memuse of <=2.125 for constructing this array
|
|
base = array.array(self.typecode, [0, 1, 2, 3, 4, 5, 6, 7]) * (size // 8)
|
|
base += array.array(self.typecode, [99]*(size % 8) + [8, 9, 10, 11])
|
|
return base
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_example_data(self, size):
|
|
example = self.example(size)
|
|
self.assertEqual(len(example), size+4)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_access(self, size):
|
|
example = self.example(size)
|
|
self.assertEqual(example[0], 0)
|
|
self.assertEqual(example[-(size+4)], 0)
|
|
self.assertEqual(example[size], 8)
|
|
self.assertEqual(example[-4], 8)
|
|
self.assertEqual(example[size+3], 11)
|
|
self.assertEqual(example[-1], 11)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125+1)
|
|
def test_slice(self, size):
|
|
example = self.example(size)
|
|
self.assertEqual(list(example[:4]), [0, 1, 2, 3])
|
|
self.assertEqual(list(example[-4:]), [8, 9, 10, 11])
|
|
part = example[1:-1]
|
|
self.assertEqual(len(part), size+2)
|
|
self.assertEqual(part[0], 1)
|
|
self.assertEqual(part[-1], 10)
|
|
del part
|
|
part = example[::2]
|
|
self.assertEqual(len(part), (size+5)//2)
|
|
self.assertEqual(list(part[:4]), [0, 2, 4, 6])
|
|
if size % 2:
|
|
self.assertEqual(list(part[-2:]), [9, 11])
|
|
else:
|
|
self.assertEqual(list(part[-2:]), [8, 10])
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_count(self, size):
|
|
example = self.example(size)
|
|
self.assertEqual(example.count(0), size//8)
|
|
self.assertEqual(example.count(11), 1)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_append(self, size):
|
|
example = self.example(size)
|
|
example.append(12)
|
|
self.assertEqual(example[-1], 12)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_extend(self, size):
|
|
example = self.example(size)
|
|
example.extend(iter([12, 13, 14, 15]))
|
|
self.assertEqual(len(example), size+8)
|
|
self.assertEqual(list(example[-8:]), [8, 9, 10, 11, 12, 13, 14, 15])
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_frombytes(self, size):
|
|
example = self.example(size)
|
|
example.frombytes(b'abcd')
|
|
self.assertEqual(len(example), size+8)
|
|
self.assertEqual(list(example[-8:]), [8, 9, 10, 11] + list(b'abcd'))
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_fromlist(self, size):
|
|
example = self.example(size)
|
|
example.fromlist([12, 13, 14, 15])
|
|
self.assertEqual(len(example), size+8)
|
|
self.assertEqual(list(example[-8:]), [8, 9, 10, 11, 12, 13, 14, 15])
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_index(self, size):
|
|
example = self.example(size)
|
|
self.assertEqual(example.index(0), 0)
|
|
self.assertEqual(example.index(1), 1)
|
|
self.assertEqual(example.index(7), 7)
|
|
self.assertEqual(example.index(11), size+3)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_insert(self, size):
|
|
example = self.example(size)
|
|
example.insert(0, 12)
|
|
example.insert(10, 13)
|
|
example.insert(size+1, 14)
|
|
self.assertEqual(len(example), size+7)
|
|
self.assertEqual(example[0], 12)
|
|
self.assertEqual(example[10], 13)
|
|
self.assertEqual(example[size+1], 14)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_pop(self, size):
|
|
example = self.example(size)
|
|
self.assertEqual(example.pop(0), 0)
|
|
self.assertEqual(example[0], 1)
|
|
self.assertEqual(example.pop(size+1), 10)
|
|
self.assertEqual(example[size+1], 11)
|
|
self.assertEqual(example.pop(1), 2)
|
|
self.assertEqual(example[1], 3)
|
|
self.assertEqual(len(example), size+1)
|
|
self.assertEqual(example.pop(), 11)
|
|
self.assertEqual(len(example), size)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_remove(self, size):
|
|
example = self.example(size)
|
|
example.remove(0)
|
|
self.assertEqual(len(example), size+3)
|
|
self.assertEqual(example[0], 1)
|
|
example.remove(10)
|
|
self.assertEqual(len(example), size+2)
|
|
self.assertEqual(example[size], 9)
|
|
self.assertEqual(example[size+1], 11)
|
|
|
|
@support.bigmemtest(_2G, memuse=2.125)
|
|
def test_reverse(self, size):
|
|
example = self.example(size)
|
|
example.reverse()
|
|
self.assertEqual(len(example), size+4)
|
|
self.assertEqual(example[0], 11)
|
|
self.assertEqual(example[3], 8)
|
|
self.assertEqual(example[-1], 0)
|
|
example.reverse()
|
|
self.assertEqual(len(example), size+4)
|
|
self.assertEqual(list(example[:4]), [0, 1, 2, 3])
|
|
self.assertEqual(list(example[-4:]), [8, 9, 10, 11])
|
|
|
|
# list takes about 9 bytes per element
|
|
@support.bigmemtest(_2G, memuse=2.125+9)
|
|
def test_tolist(self, size):
|
|
example = self.example(size)
|
|
ls = example.tolist()
|
|
self.assertEqual(len(ls), len(example))
|
|
self.assertEqual(ls[:8], list(example[:8]))
|
|
self.assertEqual(ls[-8:], list(example[-8:]))
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|