def test_error_lat_lon(self):
"""Test the function fails when radius is not zero and grid is lat-lon."""
cube = self.cube_latlon
plugin = PhaseChangeLevel(phase_change="snow-sleet", grid_point_radius=1)
with self.assertRaisesRegex(
ValueError,
r"Unable to convert from 'Unit\('degrees'\)' to 'Unit\('metres'\)'.",
):
plugin.find_max_in_nbhood_orography(cube)
def test_null(self):
"""Test the function does nothing when radius is zero."""
plugin = PhaseChangeLevel(phase_change="snow-sleet",
grid_point_radius=0)
expected_data = self.cube.data.copy()
result = plugin.find_max_in_nbhood_orography(self.cube)
self.assertArrayAlmostEqual(result.data, expected_data)
def test_null_lat_lon(self):
"""Test the function succeeds and does nothing when radius is zero and grid is
lat-lon."""
cube = self.cube_latlon
plugin = PhaseChangeLevel(phase_change="snow-sleet", grid_point_radius=0)
expected_data = self.cube.data.copy()
result = plugin.find_max_in_nbhood_orography(cube)
self.assertArrayAlmostEqual(result.data, expected_data)
def test_basic(self):
"""Test the function does what it's meant to in a simple case."""
plugin = PhaseChangeLevel(phase_change="snow-sleet",
grid_point_radius=1)
result = plugin.find_max_in_nbhood_orography(self.cube)
self.assertArrayAlmostEqual(result.data, self.expected_data)
