Method test_testCI

numpy/ma/tests/test_old_ma.py:208–256

(self)

            assert_(eq(np.prod(x, 1), product(x, 1)))

    def test_testCI(self):
        # Test of conversions and indexing
        x1 = np.array([1, 2, 4, 3])
        x2 = array(x1, mask=[1, 0, 0, 0])
        x3 = array(x1, mask=[0, 1, 0, 1])
        x4 = array(x1)
        # test conversion to strings
        str(x2)  # raises?
        repr(x2)  # raises?
        assert_(eq(np.sort(x1), sort(x2, fill_value=0)))
        # tests of indexing
        assert_(type(x2[1]) is type(x1[1]))
        assert_(x1[1] == x2[1])
        assert_(x2[0] is masked)
        assert_(eq(x1[2], x2[2]))
        assert_(eq(x1[2:5], x2[2:5]))
        assert_(eq(x1[:], x2[:]))
        assert_(eq(x1[1:], x3[1:]))
        x1[2] = 9
        x2[2] = 9
        assert_(eq(x1, x2))
        x1[1:3] = 99
        x2[1:3] = 99
        assert_(eq(x1, x2))
        x2[1] = masked
        assert_(eq(x1, x2))
        x2[1:3] = masked
        assert_(eq(x1, x2))
        x2[:] = x1
        x2[1] = masked
        assert_(allequal(getmask(x2), array([0, 1, 0, 0])))
        x3[:] = masked_array([1, 2, 3, 4], [0, 1, 1, 0])
        assert_(allequal(getmask(x3), array([0, 1, 1, 0])))
        x4[:] = masked_array([1, 2, 3, 4], [0, 1, 1, 0])
        assert_(allequal(getmask(x4), array([0, 1, 1, 0])))
        assert_(allequal(x4, array([1, 2, 3, 4])))
        x1 = np.arange(5) * 1.0
        x2 = masked_values(x1, 3.0)
        assert_(eq(x1, x2))
        assert_(allequal(array([0, 0, 0, 1, 0], MaskType), x2.mask))
        assert_(eq(3.0, x2.fill_value))
        x1 = array([1, 'hello', 2, 3], object)
        x2 = np.array([1, 'hello', 2, 3], object)
        s1 = x1[1]
        s2 = x2[1]
        assert_equal(type(s2), str)
        assert_equal(type(s1), str)
        assert_equal(s1, s2)
        assert_(x1[1:1].shape == (0,))

    def test_testCopySize(self):
        # Tests of some subtle points of copying and sizing.