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877 lines
28 KiB
Python
Executable file
877 lines
28 KiB
Python
Executable file
#! /usr/bin/env python
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"""Test the arraymodule.
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Roger E. Masse
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"""
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import unittest
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from test import test_support
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import array, cStringIO, math
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tests = [] # list to accumulate all tests
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typecodes = "cubBhHiIlLfd"
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class BadConstructorTest(unittest.TestCase):
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def test_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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tests.append(BadConstructorTest)
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class BaseTest(unittest.TestCase):
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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 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.assert_(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.assert_(isinstance(bi, tuple))
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self.assertEqual(len(bi), 2)
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self.assert_(isinstance(bi[0], int))
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self.assert_(isinstance(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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a = array.array(self.typecode, self.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, self.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_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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)
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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 + self.example[:1])
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)
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def test_tofromfile(self):
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a = array.array(self.typecode, 2*self.example)
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self.assertRaises(TypeError, a.tofile)
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self.assertRaises(TypeError, a.tofile, cStringIO.StringIO())
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f = open(test_support.TESTFN, 'wb')
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try:
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a.tofile(f)
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f.close()
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b = array.array(self.typecode)
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f = open(test_support.TESTFN, 'rb')
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self.assertRaises(TypeError, b.fromfile)
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self.assertRaises(
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TypeError,
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b.fromfile,
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cStringIO.StringIO(), len(self.example)
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)
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b.fromfile(f, len(self.example))
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self.assertEqual(b, array.array(self.typecode, self.example))
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self.assertNotEqual(a, b)
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b.fromfile(f, len(self.example))
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self.assertEqual(a, b)
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self.assertRaises(EOFError, b.fromfile, f, 1)
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f.close()
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finally:
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if not f.closed:
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f.close()
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test_support.unlink(test_support.TESTFN)
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def test_tofromlist(self):
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a = array.array(self.typecode, 2*self.example)
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b = array.array(self.typecode)
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self.assertRaises(TypeError, a.tolist, 42)
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self.assertRaises(TypeError, b.fromlist)
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self.assertRaises(TypeError, b.fromlist, 42)
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self.assertRaises(TypeError, b.fromlist, [None])
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b.fromlist(a.tolist())
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self.assertEqual(a, b)
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def test_tofromstring(self):
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a = array.array(self.typecode, 2*self.example)
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b = array.array(self.typecode)
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self.assertRaises(TypeError, a.tostring, 42)
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self.assertRaises(TypeError, b.fromstring)
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self.assertRaises(TypeError, b.fromstring, 42)
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b.fromstring(a.tostring())
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self.assertEqual(a, b)
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if a.itemsize>1:
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self.assertRaises(ValueError, b.fromstring, "x")
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def test_repr(self):
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a = array.array(self.typecode, 2*self.example)
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self.assertEqual(a, eval(repr(a), {"array": array.array}))
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a = array.array(self.typecode)
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self.assertEqual(repr(a), "array('%s')" % self.typecode)
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def test_str(self):
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a = array.array(self.typecode, 2*self.example)
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str(a)
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def test_cmp(self):
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a = array.array(self.typecode, self.example)
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self.assert_((a == 42) is False)
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self.assert_((a != 42) is True)
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self.assert_((a == a) is True)
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self.assert_((a != a) is False)
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self.assert_((a < a) is False)
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self.assert_((a <= a) is True)
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self.assert_((a > a) is False)
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self.assert_((a >= a) is True)
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as = array.array(self.typecode, self.smallerexample)
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ab = array.array(self.typecode, self.biggerexample)
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self.assert_((a == 2*a) is False)
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self.assert_((a != 2*a) is True)
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self.assert_((a < 2*a) is True)
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self.assert_((a <= 2*a) is True)
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self.assert_((a > 2*a) is False)
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self.assert_((a >= 2*a) is False)
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self.assert_((a == as) is False)
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self.assert_((a != as) is True)
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self.assert_((a < as) is False)
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self.assert_((a <= as) is False)
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self.assert_((a > as) is True)
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self.assert_((a >= as) is True)
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self.assert_((a == ab) is False)
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self.assert_((a != ab) is True)
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self.assert_((a < ab) is True)
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self.assert_((a <= ab) is True)
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self.assert_((a > ab) is False)
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self.assert_((a >= ab) is False)
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def test_add(self):
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a = array.array(self.typecode, self.example) \
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+ array.array(self.typecode, self.example[::-1])
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self.assertEqual(
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a,
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array.array(self.typecode, self.example + self.example[::-1])
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)
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b = array.array(self.badtypecode())
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self.assertRaises(TypeError, a.__add__, b)
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self.assertRaises(TypeError, a.__add__, "bad")
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def test_iadd(self):
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a = array.array(self.typecode, self.example[::-1])
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b = a
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a += array.array(self.typecode, 2*self.example)
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self.assert_(a is b)
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[::-1]+2*self.example)
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)
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b = array.array(self.badtypecode())
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self.assertRaises(TypeError, a.__add__, b)
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self.assertRaises(TypeError, a.__iadd__, "bad")
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def test_mul(self):
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a = 5*array.array(self.typecode, self.example)
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self.assertEqual(
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a,
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array.array(self.typecode, 5*self.example)
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)
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a = array.array(self.typecode, self.example)*5
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self.assertEqual(
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a,
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array.array(self.typecode, self.example*5)
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)
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a = 0*array.array(self.typecode, self.example)
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self.assertEqual(
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a,
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array.array(self.typecode)
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)
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a = (-1)*array.array(self.typecode, self.example)
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self.assertEqual(
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a,
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array.array(self.typecode)
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)
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self.assertRaises(TypeError, a.__mul__, "bad")
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def test_imul(self):
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a = array.array(self.typecode, self.example)
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b = a
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a *= 5
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self.assert_(a is b)
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self.assertEqual(
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a,
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array.array(self.typecode, 5*self.example)
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)
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a *= 0
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self.assert_(a is b)
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self.assertEqual(a, array.array(self.typecode))
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a *= 1000
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self.assert_(a is b)
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self.assertEqual(a, array.array(self.typecode))
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a *= -1
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self.assert_(a is b)
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self.assertEqual(a, array.array(self.typecode))
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a = array.array(self.typecode, self.example)
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a *= -1
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self.assertEqual(a, array.array(self.typecode))
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self.assertRaises(TypeError, a.__imul__, "bad")
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def test_getitem(self):
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a = array.array(self.typecode, self.example)
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self.assertEntryEqual(a[0], self.example[0])
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self.assertEntryEqual(a[0L], self.example[0])
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self.assertEntryEqual(a[-1], self.example[-1])
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self.assertEntryEqual(a[-1L], self.example[-1])
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self.assertEntryEqual(a[len(self.example)-1], self.example[-1])
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self.assertEntryEqual(a[-len(self.example)], self.example[0])
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self.assertRaises(TypeError, a.__getitem__)
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self.assertRaises(IndexError, a.__getitem__, len(self.example))
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self.assertRaises(IndexError, a.__getitem__, -len(self.example)-1)
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def test_setitem(self):
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a = array.array(self.typecode, self.example)
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a[0] = a[-1]
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self.assertEntryEqual(a[0], a[-1])
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a = array.array(self.typecode, self.example)
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a[0L] = a[-1]
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self.assertEntryEqual(a[0], a[-1])
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a = array.array(self.typecode, self.example)
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a[-1] = a[0]
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self.assertEntryEqual(a[0], a[-1])
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a = array.array(self.typecode, self.example)
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a[-1L] = a[0]
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self.assertEntryEqual(a[0], a[-1])
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a = array.array(self.typecode, self.example)
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a[len(self.example)-1] = a[0]
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self.assertEntryEqual(a[0], a[-1])
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a = array.array(self.typecode, self.example)
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a[-len(self.example)] = a[-1]
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self.assertEntryEqual(a[0], a[-1])
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self.assertRaises(TypeError, a.__setitem__)
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self.assertRaises(TypeError, a.__setitem__, None)
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self.assertRaises(TypeError, a.__setitem__, 0, None)
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self.assertRaises(
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IndexError,
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a.__setitem__,
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len(self.example), self.example[0]
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)
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self.assertRaises(
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IndexError,
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a.__setitem__,
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-len(self.example)-1, self.example[0]
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)
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def test_delitem(self):
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a = array.array(self.typecode, self.example)
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del a[0]
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[1:])
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)
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a = array.array(self.typecode, self.example)
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del a[-1]
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[:-1])
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)
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a = array.array(self.typecode, self.example)
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del a[len(self.example)-1]
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[:-1])
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)
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a = array.array(self.typecode, self.example)
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del a[-len(self.example)]
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[1:])
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)
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self.assertRaises(TypeError, a.__delitem__)
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self.assertRaises(TypeError, a.__delitem__, None)
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self.assertRaises(IndexError, a.__delitem__, len(self.example))
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self.assertRaises(IndexError, a.__delitem__, -len(self.example)-1)
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def test_getslice(self):
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a = array.array(self.typecode, self.example)
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self.assertEqual(a[:], a)
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self.assertEqual(
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a[1:],
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array.array(self.typecode, self.example[1:])
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)
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self.assertEqual(
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a[:1],
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array.array(self.typecode, self.example[:1])
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)
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self.assertEqual(
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a[:-1],
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array.array(self.typecode, self.example[:-1])
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)
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self.assertEqual(
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a[-1:],
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array.array(self.typecode, self.example[-1:])
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)
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self.assertEqual(
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a[-1:-1],
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array.array(self.typecode)
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)
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self.assertEqual(
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a[1000:],
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array.array(self.typecode)
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)
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self.assertEqual(a[-1000:], a)
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self.assertEqual(a[:1000], a)
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self.assertEqual(
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a[:-1000],
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array.array(self.typecode)
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)
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self.assertEqual(a[-1000:1000], a)
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self.assertEqual(
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a[2000:1000],
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array.array(self.typecode)
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)
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def test_setslice(self):
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a = array.array(self.typecode, self.example)
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a[:1] = a
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self.assertEqual(
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a,
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array.array(self.typecode, self.example + self.example[1:])
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)
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a = array.array(self.typecode, self.example)
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a[:-1] = a
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self.assertEqual(
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a,
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array.array(self.typecode, self.example + self.example[-1:])
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)
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a = array.array(self.typecode, self.example)
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a[-1:] = a
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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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)
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a = array.array(self.typecode, self.example)
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a[1:] = a
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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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)
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a = array.array(self.typecode, self.example)
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a[1:-1] = a
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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 + 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[1000:] = a
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self.assertEqual(
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a,
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array.array(self.typecode, 2*self.example)
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)
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a = array.array(self.typecode, self.example)
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a[-1000:] = a
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self.assertEqual(
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a,
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array.array(self.typecode, self.example)
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)
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a = array.array(self.typecode, self.example)
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a[:1000] = a
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self.assertEqual(
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a,
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array.array(self.typecode, self.example)
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)
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a = array.array(self.typecode, self.example)
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a[:-1000] = a
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self.assertEqual(
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a,
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array.array(self.typecode, 2*self.example)
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)
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a = array.array(self.typecode, self.example)
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a[1:0] = a
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self.assertEqual(
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a,
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array.array(self.typecode, self.example[:1] + self.example + self.example[1:])
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)
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a = array.array(self.typecode, self.example)
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a[2000:1000] = a
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self.assertEqual(
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a,
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array.array(self.typecode, 2*self.example)
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)
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a = array.array(self.typecode, self.example)
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self.assertRaises(TypeError, a.__setslice__, 0, 0, None)
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self.assertRaises(TypeError, a.__setitem__, slice(0, 1), None)
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b = array.array(self.badtypecode())
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self.assertRaises(TypeError, a.__setslice__, 0, 0, b)
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self.assertRaises(TypeError, a.__setitem__, slice(0, 1), b)
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|
|
|
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])
|
|
|
|
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()
|