def test_known_tke_2d_axis_first(uvw_and_known_tke):
"""Test array with shape (5, 3) [pretend time axis is 0]."""
u, v, w, e_true = uvw_and_known_tke
u = np.array([u, u, u]).transpose()
v = np.array([v, v, v]).transpose()
w = np.array([w, w, w]).transpose()
e_true = e_true * np.ones(3).transpose()
assert_array_equal(e_true, tke(u, v, w, axis=0))
assert_array_equal(e_true, tke(u, v, w, axis=0, perturbation=True))
def test_known_tke_2d_axis_first(uvw_and_known_tke):
"""Test array with shape (5, 3) [pretend time axis is 0]."""
u, v, w, e_true = uvw_and_known_tke
u = np.array([u, u, u]).transpose()
v = np.array([v, v, v]).transpose()
w = np.array([w, w, w]).transpose()
e_true = e_true * np.ones(3).transpose()
assert_array_equal(e_true, tke(u, v, w, axis=0))
assert_array_equal(e_true, tke(u, v, w, axis=0, perturbation=True))
def test_known_tke_2d_axis_last(uvw_and_known_tke):
"""Test array with shape (3, 5) [pretend time axis is -1]."""
u, v, w, e_true = uvw_and_known_tke
u = np.array([u, u, u])
v = np.array([v, v, v])
w = np.array([w, w, w])
e_true = e_true * np.ones(3)
assert_array_equal(e_true, tke(u, v, w, axis=-1))
def test_known_tke_2d_axis_last(uvw_and_known_tke):
"""Test array with shape (3, 5) [pretend time axis is -1]."""
u, v, w, e_true = uvw_and_known_tke
u = np.array([u, u, u])
v = np.array([v, v, v])
w = np.array([w, w, w])
e_true = e_true * np.ones(3)
assert_array_equal(e_true, tke(u, v, w, axis=-1))
def test_no_tke_1d():
"""Test tke calculation where the expected value is 0."""
observations = 5
# given all the values are the same, there should not be any tke
u = np.ones(observations)
v = np.ones(observations)
w = np.ones(observations)
e_zero = 0
assert_array_equal(e_zero, tke(u, v, w))
def test_no_tke_1d():
"""Test tke calculation where the expected value is 0."""
observations = 5
# given all the values are the same, there should not be any tke
u = np.ones(observations)
v = np.ones(observations)
w = np.ones(observations)
e_zero = 0
assert_array_equal(e_zero, tke(u, v, w))
def test_no_tke_2d_axis_first():
"""Test 0 tke calculation with 2D arrays; calculation axis is first."""
observations = 5
instruments = 2
# given all the values are the same, there should not be any tke
u = np.ones((observations, instruments))
v = np.ones((observations, instruments))
w = np.ones((observations, instruments))
e_zero = np.zeros(instruments)
assert_array_equal(e_zero, tke(u, v, w, axis=0))
def test_no_tke_2d_axis_first():
"""Test 0 tke calculation with 2D arrays; calculation axis is first."""
observations = 5
instruments = 2
# given all the values are the same, there should not be any tke
u = np.ones((observations, instruments))
v = np.ones((observations, instruments))
w = np.ones((observations, instruments))
e_zero = np.zeros(instruments)
assert_array_equal(e_zero, tke(u, v, w, axis=0))
def test_known_tke(uvw_and_known_tke):
"""Test basic behavior of tke with known values."""
u, v, w, e_true = uvw_and_known_tke
assert_array_equal(e_true, tke(u, v, w))
def test_known_tke(uvw_and_known_tke):
"""Test basic behavior of tke with known values."""
u, v, w, e_true = uvw_and_known_tke
assert_array_equal(e_true, tke(u, v, w))
