def test_cen_diff4_zero_slope(self):
np.testing.assert_array_equal(
FiniteDiff.cen_diff4(self.ones, self.arange), self.zeros_trunc4)
np.testing.assert_array_equal(
FiniteDiff.cen_diff4(self.zeros, self.arange), self.zeros_trunc4)
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.zeros, 1.),
self.zeros_trunc4)
def test_fwd_diff2_zero_slope(self):
np.testing.assert_array_equal(
FiniteDiff.fwd_diff2(self.ones, self.arange), self.zeros_trunc2)
np.testing.assert_array_equal(
FiniteDiff.fwd_diff2(self.zeros, self.arange), self.zeros_trunc2)
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.zeros, 1.),
self.zeros_trunc2)
def test_cen_diff4_zero_slope(self):
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.ones,
self.arange),
self.zeros_trunc4)
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.zeros,
self.arange),
self.zeros_trunc4)
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.zeros, 1.),
self.zeros_trunc4)
def test_fwd_diff2_zero_slope(self):
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.ones,
self.arange),
self.zeros_trunc2)
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.zeros,
self.arange),
self.zeros_trunc2)
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.zeros, 1.),
self.zeros_trunc2)
def test_cen_diff4_constant_slope(self):
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.arange, 1.),
self.ones_trunc4)
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.arange*-2.5,
1.),
self.ones_trunc4*-2.5)
def test_fwd_diff2_constant_slope(self):
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.arange, 1.),
self.ones_trunc2)
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.arange*-2.5, 1.),
self.ones_trunc2*-2.5)
def test_cen_diff4_constant_slope(self):
np.testing.assert_array_equal(FiniteDiff.cen_diff4(self.arange, 1.),
self.ones_trunc4)
np.testing.assert_array_equal(
FiniteDiff.cen_diff4(self.arange * -2.5, 1.),
self.ones_trunc4 * -2.5)
def test_fwd_diff2_constant_slope(self):
np.testing.assert_array_equal(FiniteDiff.fwd_diff2(self.arange, 1.),
self.ones_trunc2)
np.testing.assert_array_equal(
FiniteDiff.fwd_diff2(self.arange * -2.5, 1.),
self.ones_trunc2 * -2.5)
