test_slicing.py 文件源码

def test_setslice_cint(self):
        a = (c_int * 100)(*xrange(1100, 1200))
        b = range(1100, 1200)

        a[32:47] = range(32, 47)
        self.assertEqual(a[32:47], range(32, 47))
        a[32:47] = range(132, 147)
        self.assertEqual(a[32:47:], range(132, 147))
        a[46:31:-1] = range(232, 247)
        self.assertEqual(a[32:47:1], range(246, 231, -1))

        a[32:47] = range(1132, 1147)
        self.assertEqual(a[:], b)
        a[32:47:7] = range(3)
        b[32:47:7] = range(3)
        self.assertEqual(a[:], b)
        a[33::-3] = range(12)
        b[33::-3] = range(12)
        self.assertEqual(a[:], b)

        from operator import setslice, setitem

        # TypeError: int expected instead of str instance
        self.assertRaises(TypeError, setslice, a, 0, 5, "abcde")
        self.assertRaises(TypeError, setitem, a, slice(0, 5), "abcde")
        # TypeError: int expected instead of str instance
        self.assertRaises(TypeError, setslice, a, 0, 5, ["a", "b", "c", "d", "e"])
        self.assertRaises(TypeError, setitem, a, slice(0, 5),
                          ["a", "b", "c", "d", "e"])
        # TypeError: int expected instead of float instance
        self.assertRaises(TypeError, setslice, a, 0, 5, [1, 2, 3, 4, 3.14])
        self.assertRaises(TypeError, setitem, a, slice(0, 5),
                          [1, 2, 3, 4, 3.14])
        # ValueError: Can only assign sequence of same size
        self.assertRaises(ValueError, setslice, a, 0, 5, range(32))
        self.assertRaises(ValueError, setitem, a, slice(0, 5), range(32))