def METHOD_NAME(self):
    # gh-7575
    testvector = np.array([np.array([0, 1]), 0, 0], dtype=object)
    norm = linalg.norm(testvector)
    assert_array_equal(norm, [0, 1])
    assert_(norm.dtype == np.dtype('float64'))
    norm = linalg.norm(testvector, ord=1)
    assert_array_equal(norm, [0, 1])
    assert_(norm.dtype != np.dtype('float64'))
    norm = linalg.norm(testvector, ord=2)
    assert_array_equal(norm, [0, 1])
    assert_(norm.dtype == np.dtype('float64'))
    assert_raises(ValueError, linalg.norm, testvector, ord='fro')
    assert_raises(ValueError, linalg.norm, testvector, ord='nuc')
    assert_raises(ValueError, linalg.norm, testvector, ord=np.inf)
    assert_raises(ValueError, linalg.norm, testvector, ord=-np.inf)
    assert_raises(ValueError, linalg.norm, testvector, ord=0)
    assert_raises(ValueError, linalg.norm, testvector, ord=-1)
    assert_raises(ValueError, linalg.norm, testvector, ord=-2)
    testmatrix = np.array([[np.array([0, 1]), 0, 0],
                           [0,                0, 0]], dtype=object)
    norm = linalg.norm(testmatrix)
    assert_array_equal(norm, [0, 1])
    assert_(norm.dtype == np.dtype('float64'))
    norm = linalg.norm(testmatrix, ord='fro')
    assert_array_equal(norm, [0, 1])
    assert_(norm.dtype == np.dtype('float64'))
    assert_raises(TypeError, linalg.norm, testmatrix, ord='nuc')
    assert_raises(ValueError, linalg.norm, testmatrix, ord=np.inf)
    assert_raises(ValueError, linalg.norm, testmatrix, ord=-np.inf)
    assert_raises(ValueError, linalg.norm, testmatrix, ord=0)
    assert_raises(ValueError, linalg.norm, testmatrix, ord=1)
    assert_raises(ValueError, linalg.norm, testmatrix, ord=-1)
    assert_raises(TypeError, linalg.norm, testmatrix, ord=2)
    assert_raises(TypeError, linalg.norm, testmatrix, ord=-2)
    assert_raises(ValueError, linalg.norm, testmatrix, ord=3)