| #! /usr/bin/env python |
| """Test the arraymodule. |
| Roger E. Masse |
| """ |
| |
| import unittest |
| from test import test_support |
| import array, cStringIO, math |
| |
| tests = [] # list to accumulate all tests |
| typecodes = "cubBhHiIlLfd" |
| |
| class BadConstructorTest(unittest.TestCase): |
| |
| def test_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') |
| |
| tests.append(BadConstructorTest) |
| |
| class BaseTest(unittest.TestCase): |
| # 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.assert_(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.assert_(isinstance(bi, tuple)) |
| self.assertEqual(len(bi), 2) |
| self.assert_(isinstance(bi[0], int)) |
| self.assert_(isinstance(bi[1], int)) |
| self.assertEqual(bi[1], len(a)) |
| |
| 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: |
| self.assertNotEqual(a, b) |
| b.byteswap() |
| self.assertEqual(a, b) |
| |
| 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) |
| self.assertRaises(TypeError, a.tofile, cStringIO.StringIO()) |
| f = open(test_support.TESTFN, 'wb') |
| try: |
| a.tofile(f) |
| f.close() |
| b = array.array(self.typecode) |
| f = open(test_support.TESTFN, 'rb') |
| self.assertRaises(TypeError, b.fromfile) |
| self.assertRaises( |
| TypeError, |
| b.fromfile, |
| cStringIO.StringIO(), len(self.example) |
| ) |
| 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) |
| self.assertRaises(EOFError, b.fromfile, f, 1) |
| f.close() |
| finally: |
| if not f.closed: |
| f.close() |
| test_support.unlink(test_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): |
| 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") |
| |
| 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.assert_((a == 42) is False) |
| self.assert_((a != 42) is True) |
| |
| self.assert_((a == a) is True) |
| self.assert_((a != a) is False) |
| self.assert_((a < a) is False) |
| self.assert_((a <= a) is True) |
| self.assert_((a > a) is False) |
| self.assert_((a >= a) is True) |
| |
| as = array.array(self.typecode, self.smallerexample) |
| ab = array.array(self.typecode, self.biggerexample) |
| |
| self.assert_((a == 2*a) is False) |
| self.assert_((a != 2*a) is True) |
| self.assert_((a < 2*a) is True) |
| self.assert_((a <= 2*a) is True) |
| self.assert_((a > 2*a) is False) |
| self.assert_((a >= 2*a) is False) |
| |
| self.assert_((a == as) is False) |
| self.assert_((a != as) is True) |
| self.assert_((a < as) is False) |
| self.assert_((a <= as) is False) |
| self.assert_((a > as) is True) |
| self.assert_((a >= as) is True) |
| |
| self.assert_((a == ab) is False) |
| self.assert_((a != ab) is True) |
| self.assert_((a < ab) is True) |
| self.assert_((a <= ab) is True) |
| self.assert_((a > ab) is False) |
| self.assert_((a >= ab) is 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.assert_(a is b) |
| self.assertEqual( |
| a, |
| array.array(self.typecode, self.example[::-1]+2*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) |
| ) |
| |
| self.assertRaises(TypeError, a.__mul__, "bad") |
| |
| def test_imul(self): |
| a = array.array(self.typecode, self.example) |
| b = a |
| |
| a *= 5 |
| self.assert_(a is b) |
| self.assertEqual( |
| a, |
| array.array(self.typecode, 5*self.example) |
| ) |
| |
| a *= 0 |
| self.assert_(a is b) |
| self.assertEqual(a, array.array(self.typecode)) |
| |
| a *= 1000 |
| self.assert_(a is b) |
| self.assertEqual(a, array.array(self.typecode)) |
| |
| a *= -1 |
| self.assert_(a is 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[0L], self.example[0]) |
| self.assertEntryEqual(a[-1], self.example[-1]) |
| self.assertEntryEqual(a[-1L], 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[0L] = 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[-1L] = 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[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_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.__setslice__, 0, 0, None) |
| self.assertRaises(TypeError, a.__setitem__, slice(0, 1), None) |
| |
| b = array.array(self.badtypecode()) |
| self.assertRaises(TypeError, a.__setslice__, 0, 0, b) |
| self.assertRaises(TypeError, a.__setitem__, slice(0, 1), b) |
| |
| 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]) |
| ) |
| |
| b = array.array(self.badtypecode()) |
| self.assertRaises(TypeError, a.extend, b) |
| |
| def test_coveritertraverse(self): |
| try: |
| import gc |
| except ImportError: |
| return |
| a = array.array(self.typecode) |
| l = [iter(a)] |
| l.append(l) |
| gc.collect() |
| |
| def test_buffer(self): |
| a = array.array(self.typecode, self.example) |
| b = buffer(a) |
| self.assertEqual(b[0], a.tostring()[0]) |
| |
| def test_bug_782369(self): |
| import sys |
| if hasattr(sys, "getrefcount"): |
| 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)) |
| |
| class StringTest(BaseTest): |
| |
| def test_setitem(self): |
| super(StringTest, self).test_setitem() |
| a = array.array(self.typecode, self.example) |
| self.assertRaises(TypeError, a.__setitem__, 0, self.example[:2]) |
| |
| class CharacterTest(StringTest): |
| typecode = 'c' |
| example = '\x01azAZ\x00\xfe' |
| smallerexample = '\x01azAY\x00\xfe' |
| biggerexample = '\x01azAZ\x00\xff' |
| outside = '\x33' |
| minitemsize = 1 |
| |
| def test_subbclassing(self): |
| class EditableString(array.array): |
| def __new__(cls, s, *args, **kwargs): |
| return array.array.__new__(cls, 'c', s) |
| |
| def __init__(self, s, color='blue'): |
| array.array.__init__(self, 'c', s) |
| self.color = color |
| |
| def strip(self): |
| self[:] = array.array('c', self.tostring().strip()) |
| |
| def __repr__(self): |
| return 'EditableString(%r)' % self.tostring() |
| |
| s = EditableString("\ttest\r\n") |
| s.strip() |
| self.assertEqual(s.tostring(), "test") |
| |
| self.assertEqual(s.color, "blue") |
| s.color = "red" |
| self.assertEqual(s.color, "red") |
| self.assertEqual(s.__dict__.keys(), ["color"]) |
| |
| def test_nounicode(self): |
| a = array.array(self.typecode, self.example) |
| self.assertRaises(ValueError, a.fromunicode, unicode('')) |
| self.assertRaises(ValueError, a.tounicode) |
| |
| tests.append(CharacterTest) |
| |
| if test_support.have_unicode: |
| class UnicodeTest(StringTest): |
| typecode = 'u' |
| example = unicode(r'\x01\u263a\x00\ufeff', 'unicode-escape') |
| smallerexample = unicode(r'\x01\u263a\x00\ufefe', 'unicode-escape') |
| biggerexample = unicode(r'\x01\u263a\x01\ufeff', 'unicode-escape') |
| outside = unicode('\x33') |
| minitemsize = 2 |
| |
| def test_unicode(self): |
| self.assertRaises(TypeError, array.array, 'b', unicode('foo', 'ascii')) |
| |
| a = array.array('u', unicode(r'\xa0\xc2\u1234', 'unicode-escape')) |
| a.fromunicode(unicode(' ', 'ascii')) |
| a.fromunicode(unicode('', 'ascii')) |
| a.fromunicode(unicode('', 'ascii')) |
| a.fromunicode(unicode(r'\x11abc\xff\u1234', 'unicode-escape')) |
| s = a.tounicode() |
| self.assertEqual( |
| s, |
| unicode(r'\xa0\xc2\u1234 \x11abc\xff\u1234', 'unicode-escape') |
| ) |
| |
| s = unicode(r'\x00="\'a\\b\x80\xff\u0000\u0001\u1234', 'unicode-escape') |
| a = array.array('u', s) |
| self.assertEqual( |
| repr(a), |
| r"""array('u', u'\x00="\'a\\b\x80\xff\x00\x01\u1234')""" |
| ) |
| |
| self.assertRaises(TypeError, a.fromunicode) |
| |
| tests.append(UnicodeTest) |
| |
| 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[-100L:100L:2L], 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])) |
| |
| 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), 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") |
| |
| class SignedNumberTest(NumberTest): |
| 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 * long(pow(2, a.itemsize * 8 - 1)) |
| upper = long(pow(2, a.itemsize * 8 - 1)) - 1L |
| self.check_overflow(lower, upper) |
| |
| class UnsignedNumberTest(NumberTest): |
| 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 = long(pow(2, a.itemsize * 8)) - 1L |
| self.check_overflow(lower, upper) |
| |
| |
| class ByteTest(SignedNumberTest): |
| typecode = 'b' |
| minitemsize = 1 |
| tests.append(ByteTest) |
| |
| class UnsignedByteTest(UnsignedNumberTest): |
| typecode = 'B' |
| minitemsize = 1 |
| tests.append(UnsignedByteTest) |
| |
| class ShortTest(SignedNumberTest): |
| typecode = 'h' |
| minitemsize = 2 |
| tests.append(ShortTest) |
| |
| class UnsignedShortTest(UnsignedNumberTest): |
| typecode = 'H' |
| minitemsize = 2 |
| tests.append(UnsignedShortTest) |
| |
| class IntTest(SignedNumberTest): |
| typecode = 'i' |
| minitemsize = 2 |
| tests.append(IntTest) |
| |
| class UnsignedIntTest(UnsignedNumberTest): |
| typecode = 'I' |
| minitemsize = 2 |
| tests.append(UnsignedIntTest) |
| |
| class LongTest(SignedNumberTest): |
| typecode = 'l' |
| minitemsize = 4 |
| tests.append(LongTest) |
| |
| class UnsignedLongTest(UnsignedNumberTest): |
| typecode = 'L' |
| minitemsize = 4 |
| tests.append(UnsignedLongTest) |
| |
| 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.tostring(), b.tostring()) |
| b.byteswap() |
| self.assertEqual(a, b) |
| |
| class FloatTest(FPTest): |
| typecode = 'f' |
| minitemsize = 4 |
| tests.append(FloatTest) |
| |
| class DoubleTest(FPTest): |
| typecode = 'd' |
| minitemsize = 8 |
| tests.append(DoubleTest) |
| |
| def test_main(): |
| test_support.run_unittest(*tests) |
| |
| if __name__=="__main__": |
| test_main() |