| """Test the arraymodule. |
| Roger E. Masse |
| """ |
| |
| import unittest |
| from test import support |
| import weakref |
| import pickle |
| import operator |
| import struct |
| import sys |
| import warnings |
| |
| import array |
| from array import _array_reconstructor as array_reconstructor |
| |
| sizeof_wchar = array.array('u').itemsize |
| |
| |
| class ArraySubclass(array.array): |
| pass |
| |
| class ArraySubclassWithKwargs(array.array): |
| def __init__(self, typecode, newarg=None): |
| array.array.__init__(self) |
| |
| typecodes = 'ubBhHiIlLfdqQ' |
| |
| class MiscTest(unittest.TestCase): |
| |
| def test_bad_constructor(self): |
| self.assertRaises(TypeError, array.array) |
| self.assertRaises(TypeError, array.array, spam=42) |
| self.assertRaises(TypeError, array.array, 'xx') |
| self.assertRaises(ValueError, array.array, 'x') |
| |
| def test_empty(self): |
| # Exercise code for handling zero-length arrays |
| a = array.array('B') |
| a[:] = a |
| self.assertEqual(len(a), 0) |
| self.assertEqual(len(a + a), 0) |
| self.assertEqual(len(a * 3), 0) |
| a += a |
| self.assertEqual(len(a), 0) |
| |
| |
| # Machine format codes. |
| # |
| # Search for "enum machine_format_code" in Modules/arraymodule.c to get the |
| # authoritative values. |
| UNKNOWN_FORMAT = -1 |
| UNSIGNED_INT8 = 0 |
| SIGNED_INT8 = 1 |
| UNSIGNED_INT16_LE = 2 |
| UNSIGNED_INT16_BE = 3 |
| SIGNED_INT16_LE = 4 |
| SIGNED_INT16_BE = 5 |
| UNSIGNED_INT32_LE = 6 |
| UNSIGNED_INT32_BE = 7 |
| SIGNED_INT32_LE = 8 |
| SIGNED_INT32_BE = 9 |
| UNSIGNED_INT64_LE = 10 |
| UNSIGNED_INT64_BE = 11 |
| SIGNED_INT64_LE = 12 |
| SIGNED_INT64_BE = 13 |
| IEEE_754_FLOAT_LE = 14 |
| IEEE_754_FLOAT_BE = 15 |
| IEEE_754_DOUBLE_LE = 16 |
| IEEE_754_DOUBLE_BE = 17 |
| UTF16_LE = 18 |
| UTF16_BE = 19 |
| UTF32_LE = 20 |
| UTF32_BE = 21 |
| |
| class ArrayReconstructorTest(unittest.TestCase): |
| |
| def test_error(self): |
| self.assertRaises(TypeError, array_reconstructor, |
| "", "b", 0, b"") |
| self.assertRaises(TypeError, array_reconstructor, |
| str, "b", 0, b"") |
| self.assertRaises(TypeError, array_reconstructor, |
| array.array, "b", '', b"") |
| self.assertRaises(TypeError, array_reconstructor, |
| array.array, "b", 0, "") |
| self.assertRaises(ValueError, array_reconstructor, |
| array.array, "?", 0, b"") |
| self.assertRaises(ValueError, array_reconstructor, |
| array.array, "b", UNKNOWN_FORMAT, b"") |
| self.assertRaises(ValueError, array_reconstructor, |
| array.array, "b", 22, b"") |
| self.assertRaises(ValueError, array_reconstructor, |
| array.array, "d", 16, b"a") |
| |
| def test_numbers(self): |
| testcases = ( |
| (['B', 'H', 'I', 'L'], UNSIGNED_INT8, '=BBBB', |
| [0x80, 0x7f, 0, 0xff]), |
| (['b', 'h', 'i', 'l'], SIGNED_INT8, '=bbb', |
| [-0x80, 0x7f, 0]), |
| (['H', 'I', 'L'], UNSIGNED_INT16_LE, '<HHHH', |
| [0x8000, 0x7fff, 0, 0xffff]), |
| (['H', 'I', 'L'], UNSIGNED_INT16_BE, '>HHHH', |
| [0x8000, 0x7fff, 0, 0xffff]), |
| (['h', 'i', 'l'], SIGNED_INT16_LE, '<hhh', |
| [-0x8000, 0x7fff, 0]), |
| (['h', 'i', 'l'], SIGNED_INT16_BE, '>hhh', |
| [-0x8000, 0x7fff, 0]), |
| (['I', 'L'], UNSIGNED_INT32_LE, '<IIII', |
| [1<<31, (1<<31)-1, 0, (1<<32)-1]), |
| (['I', 'L'], UNSIGNED_INT32_BE, '>IIII', |
| [1<<31, (1<<31)-1, 0, (1<<32)-1]), |
| (['i', 'l'], SIGNED_INT32_LE, '<iii', |
| [-1<<31, (1<<31)-1, 0]), |
| (['i', 'l'], SIGNED_INT32_BE, '>iii', |
| [-1<<31, (1<<31)-1, 0]), |
| (['L'], UNSIGNED_INT64_LE, '<QQQQ', |
| [1<<31, (1<<31)-1, 0, (1<<32)-1]), |
| (['L'], UNSIGNED_INT64_BE, '>QQQQ', |
| [1<<31, (1<<31)-1, 0, (1<<32)-1]), |
| (['l'], SIGNED_INT64_LE, '<qqq', |
| [-1<<31, (1<<31)-1, 0]), |
| (['l'], SIGNED_INT64_BE, '>qqq', |
| [-1<<31, (1<<31)-1, 0]), |
| # The following tests for INT64 will raise an OverflowError |
| # when run on a 32-bit machine. The tests are simply skipped |
| # in that case. |
| (['L'], UNSIGNED_INT64_LE, '<QQQQ', |
| [1<<63, (1<<63)-1, 0, (1<<64)-1]), |
| (['L'], UNSIGNED_INT64_BE, '>QQQQ', |
| [1<<63, (1<<63)-1, 0, (1<<64)-1]), |
| (['l'], SIGNED_INT64_LE, '<qqq', |
| [-1<<63, (1<<63)-1, 0]), |
| (['l'], SIGNED_INT64_BE, '>qqq', |
| [-1<<63, (1<<63)-1, 0]), |
| (['f'], IEEE_754_FLOAT_LE, '<ffff', |
| [16711938.0, float('inf'), float('-inf'), -0.0]), |
| (['f'], IEEE_754_FLOAT_BE, '>ffff', |
| [16711938.0, float('inf'), float('-inf'), -0.0]), |
| (['d'], IEEE_754_DOUBLE_LE, '<dddd', |
| [9006104071832581.0, float('inf'), float('-inf'), -0.0]), |
| (['d'], IEEE_754_DOUBLE_BE, '>dddd', |
| [9006104071832581.0, float('inf'), float('-inf'), -0.0]) |
| ) |
| for testcase in testcases: |
| valid_typecodes, mformat_code, struct_fmt, values = testcase |
| arraystr = struct.pack(struct_fmt, *values) |
| for typecode in valid_typecodes: |
| try: |
| a = array.array(typecode, values) |
| except OverflowError: |
| continue # Skip this test case. |
| b = array_reconstructor( |
| array.array, typecode, mformat_code, arraystr) |
| self.assertEqual(a, b, |
| msg="{0!r} != {1!r}; testcase={2!r}".format(a, b, testcase)) |
| |
| def test_unicode(self): |
| teststr = "Bonne Journ\xe9e \U0002030a\U00020347" |
| testcases = ( |
| (UTF16_LE, "UTF-16-LE"), |
| (UTF16_BE, "UTF-16-BE"), |
| (UTF32_LE, "UTF-32-LE"), |
| (UTF32_BE, "UTF-32-BE") |
| ) |
| for testcase in testcases: |
| mformat_code, encoding = testcase |
| a = array.array('u', teststr) |
| b = array_reconstructor( |
| array.array, 'u', mformat_code, teststr.encode(encoding)) |
| self.assertEqual(a, b, |
| msg="{0!r} != {1!r}; testcase={2!r}".format(a, b, testcase)) |
| |
| |
| class BaseTest: |
| # Required class attributes (provided by subclasses |
| # typecode: the typecode to test |
| # example: an initializer usable in the constructor for this type |
| # smallerexample: the same length as example, but smaller |
| # biggerexample: the same length as example, but bigger |
| # outside: An entry that is not in example |
| # minitemsize: the minimum guaranteed itemsize |
| |
| def assertEntryEqual(self, entry1, entry2): |
| self.assertEqual(entry1, entry2) |
| |
| def badtypecode(self): |
| # Return a typecode that is different from our own |
| return typecodes[(typecodes.index(self.typecode)+1) % len(typecodes)] |
| |
| def test_constructor(self): |
| a = array.array(self.typecode) |
| self.assertEqual(a.typecode, self.typecode) |
| self.assertGreaterEqual(a.itemsize, self.minitemsize) |
| self.assertRaises(TypeError, array.array, self.typecode, None) |
| |
| def test_len(self): |
| a = array.array(self.typecode) |
| a.append(self.example[0]) |
| self.assertEqual(len(a), 1) |
| |
| a = array.array(self.typecode, self.example) |
| self.assertEqual(len(a), len(self.example)) |
| |
| def test_buffer_info(self): |
| a = array.array(self.typecode, self.example) |
| self.assertRaises(TypeError, a.buffer_info, 42) |
| bi = a.buffer_info() |
| self.assertIsInstance(bi, tuple) |
| self.assertEqual(len(bi), 2) |
| self.assertIsInstance(bi[0], int) |
| self.assertIsInstance(bi[1], int) |
| self.assertEqual(bi[1], len(a)) |
| |
| def test_byteswap(self): |
| if self.typecode == 'u': |
| example = '\U00100100' |
| else: |
| example = self.example |
| a = array.array(self.typecode, example) |
| self.assertRaises(TypeError, a.byteswap, 42) |
| if a.itemsize in (1, 2, 4, 8): |
| b = array.array(self.typecode, example) |
| b.byteswap() |
| if a.itemsize==1: |
| self.assertEqual(a, b) |
| else: |
| self.assertNotEqual(a, b) |
| b.byteswap() |
| self.assertEqual(a, b) |
| |
| def test_copy(self): |
| import copy |
| a = array.array(self.typecode, self.example) |
| b = copy.copy(a) |
| self.assertNotEqual(id(a), id(b)) |
| self.assertEqual(a, b) |
| |
| def test_deepcopy(self): |
| import copy |
| a = array.array(self.typecode, self.example) |
| b = copy.deepcopy(a) |
| self.assertNotEqual(id(a), id(b)) |
| self.assertEqual(a, b) |
| |
| def test_reduce_ex(self): |
| a = array.array(self.typecode, self.example) |
| for protocol in range(3): |
| self.assertIs(a.__reduce_ex__(protocol)[0], array.array) |
| for protocol in range(3, pickle.HIGHEST_PROTOCOL): |
| self.assertIs(a.__reduce_ex__(protocol)[0], array_reconstructor) |
| |
| def test_pickle(self): |
| for protocol in range(pickle.HIGHEST_PROTOCOL + 1): |
| a = array.array(self.typecode, self.example) |
| b = pickle.loads(pickle.dumps(a, protocol)) |
| self.assertNotEqual(id(a), id(b)) |
| self.assertEqual(a, b) |
| |
| a = ArraySubclass(self.typecode, self.example) |
| a.x = 10 |
| b = pickle.loads(pickle.dumps(a, protocol)) |
| self.assertNotEqual(id(a), id(b)) |
| self.assertEqual(a, b) |
| self.assertEqual(a.x, b.x) |
| self.assertEqual(type(a), type(b)) |
| |
| def test_pickle_for_empty_array(self): |
| for protocol in range(pickle.HIGHEST_PROTOCOL + 1): |
| a = array.array(self.typecode) |
| b = pickle.loads(pickle.dumps(a, protocol)) |
| self.assertNotEqual(id(a), id(b)) |
| self.assertEqual(a, b) |
| |
| a = ArraySubclass(self.typecode) |
| a.x = 10 |
| b = pickle.loads(pickle.dumps(a, protocol)) |
| self.assertNotEqual(id(a), id(b)) |
| self.assertEqual(a, b) |
| self.assertEqual(a.x, b.x) |
| self.assertEqual(type(a), type(b)) |
| |
| def test_iterator_pickle(self): |
| orig = array.array(self.typecode, self.example) |
| data = list(orig) |
| data2 = data[::-1] |
| for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
| # initial iterator |
| itorig = iter(orig) |
| d = pickle.dumps((itorig, orig), proto) |
| it, a = pickle.loads(d) |
| a.fromlist(data2) |
| self.assertEqual(type(it), type(itorig)) |
| self.assertEqual(list(it), data + data2) |
| |
| # running iterator |
| next(itorig) |
| d = pickle.dumps((itorig, orig), proto) |
| it, a = pickle.loads(d) |
| a.fromlist(data2) |
| self.assertEqual(type(it), type(itorig)) |
| self.assertEqual(list(it), data[1:] + data2) |
| |
| # empty iterator |
| for i in range(1, len(data)): |
| next(itorig) |
| d = pickle.dumps((itorig, orig), proto) |
| it, a = pickle.loads(d) |
| a.fromlist(data2) |
| self.assertEqual(type(it), type(itorig)) |
| self.assertEqual(list(it), data2) |
| |
| # exhausted iterator |
| self.assertRaises(StopIteration, next, itorig) |
| d = pickle.dumps((itorig, orig), proto) |
| it, a = pickle.loads(d) |
| a.fromlist(data2) |
| self.assertEqual(list(it), []) |
| |
| def test_exhausted_iterator(self): |
| a = array.array(self.typecode, self.example) |
| self.assertEqual(list(a), list(self.example)) |
| exhit = iter(a) |
| empit = iter(a) |
| for x in exhit: # exhaust the iterator |
| next(empit) # not exhausted |
| a.append(self.outside) |
| self.assertEqual(list(exhit), []) |
| self.assertEqual(list(empit), [self.outside]) |
| self.assertEqual(list(a), list(self.example) + [self.outside]) |
| |
| def test_insert(self): |
| a = array.array(self.typecode, self.example) |
| a.insert(0, self.example[0]) |
| self.assertEqual(len(a), 1+len(self.example)) |
| self.assertEqual(a[0], a[1]) |
| self.assertRaises(TypeError, a.insert) |
| self.assertRaises(TypeError, a.insert, None) |
| self.assertRaises(TypeError, a.insert, 0, None) |
| |
| a = array.array(self.typecode, self.example) |
| a.insert(-1, self.example[0]) |
| self.assertEqual( |
| a, |
| array.array( |
| self.typecode, |
| self.example[:-1] + self.example[:1] + self.example[-1:] |
| ) |
| ) |
| |
| a = array.array(self.typecode, self.example) |
| a.insert(-1000, self.example[0]) |
| self.assertEqual( |
| a, |
| array.array(self.typecode, self.example[:1] + self.example) |
| ) |
| |
| 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) |
| support.unlink(support.TESTFN) |
| f = open(support.TESTFN, 'wb') |
| try: |
| a.tofile(f) |
| f.close() |
| b = array.array(self.typecode) |
| f = open(support.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() |
| support.unlink(support.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(support.TESTFN, 'wb') |
| try: |
| self.assertRaises(OSError, a.fromfile, f, len(self.example)) |
| finally: |
| f.close() |
| support.unlink(support.TESTFN) |
| |
| def test_filewrite(self): |
| a = array.array(self.typecode, 2*self.example) |
| f = open(support.TESTFN, 'wb') |
| try: |
| f.write(a) |
| f.close() |
| b = array.array(self.typecode) |
| f = open(support.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() |
| support.unlink(support.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_tofromstring(self): |
| # Warnings not raised when arguments are incorrect as Argument Clinic |
| # handles that before the warning can be raised. |
| nb_warnings = 2 |
| with warnings.catch_warnings(record=True) as r: |
| warnings.filterwarnings("always", |
| message=r"(to|from)string\(\) is deprecated", |
| category=DeprecationWarning) |
| a = array.array(self.typecode, 2*self.example) |
| b = array.array(self.typecode) |
| self.assertRaises(TypeError, a.tostring, 42) |
| self.assertRaises(TypeError, b.fromstring) |
| self.assertRaises(TypeError, b.fromstring, 42) |
| b.fromstring(a.tostring()) |
| self.assertEqual(a, b) |
| if a.itemsize>1: |
| self.assertRaises(ValueError, b.fromstring, "x") |
| nb_warnings += 1 |
| self.assertEqual(len(r), nb_warnings) |
| |
| 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, -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, -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) |
| |
| 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_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 == 'u': |
| 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 |
| 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 != 'u': |
| 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('u', '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')) |
| |
| @support.cpython_only |
| def test_obsolete_write_lock(self): |
| from _testcapi import getbuffer_with_null_view |
| a = array.array('B', b"") |
| self.assertRaises(BufferError, 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 = 2 |
| |
| def test_unicode(self): |
| self.assertRaises(TypeError, array.array, 'b', 'foo') |
| |
| a = array.array('u', '\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, sizeof_wchar) |
| |
| s = '\x00="\'a\\b\x80\xff\u0000\u0001\u1234' |
| a = array.array('u', s) |
| self.assertEqual( |
| repr(a), |
| "array('u', '\\x00=\"\\'a\\\\b\\x80\xff\\x00\\x01\u1234')") |
| |
| self.assertRaises(TypeError, a.fromunicode) |
| |
| def test_issue17223(self): |
| # this used to crash |
| if sizeof_wchar == 4: |
| # U+FFFFFFFF is an invalid code point in Unicode 6.0 |
| invalid_str = b'\xff\xff\xff\xff' |
| else: |
| # PyUnicode_FromUnicode() cannot fail with 16-bit wchar_t |
| self.skipTest("specific to 32-bit wchar_t") |
| a = array.array('u', invalid_str) |
| self.assertRaises(ValueError, a.tounicode) |
| self.assertRaises(ValueError, str, a) |
| |
| 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 __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_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") |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |