def test_fails_if_req_percentile_not_in_cube(self):
"""Test it raises a Value Error if req_perc not in cube."""
plugin = WindGustDiagnostic(self.wg_perc, self.ws_perc)
msg = ('Could not find required percentile')
with self.assertRaisesRegex(ValueError, msg):
plugin.extract_percentile_data(self.cube_wg, 20.0,
"wind_speed_of_gust")
def test_fails_if_data_is_not_cube(self):
"""Test it raises a Type Error if cube is not a cube."""
plugin = WindGustDiagnostic(self.wg_perc, self.ws_perc)
msg = ('Expecting wind_speed_of_gust data to be an instance of '
'iris.cube.Cube but is'
' {0}.'.format(type(self.wg_perc)))
with self.assertRaisesRegex(TypeError, msg):
plugin.extract_percentile_data(self.wg_perc, self.wg_perc,
"wind_speed_of_gust")
def test_returns_correct_cube_and_coord(self):
"""Test it returns the correct Cube and Coord."""
plugin = WindGustDiagnostic(self.wg_perc, self.ws_perc)
result, perc_coord = (plugin.extract_percentile_data(
self.cube_wg, self.wg_perc, "wind_speed_of_gust"))
self.assertEqual(perc_coord.name(), "percentile")
self.assertEqual(result.coord("percentile").points, [self.wg_perc])
def test_basic(self):
"""Test that the function returns a Cube and Coord."""
plugin = WindGustDiagnostic(self.wg_perc, self.ws_perc)
result, perc_coord = (plugin.extract_percentile_data(
self.cube_wg, self.wg_perc, "wind_speed_of_gust"))
self.assertIsInstance(result, Cube)
self.assertIsInstance(perc_coord, iris.coords.Coord)
def test_warning_if_standard_names_do_not_match(self, warning_list=None):
"""Test it raises a warning if standard names do not match."""
plugin = WindGustDiagnostic(self.wg_perc, self.ws_perc)
warning_msg = ('Warning mismatching name for data expecting')
result, perc_coord = (plugin.extract_percentile_data(
self.cube_wg, self.wg_perc, "wind_speed"))
self.assertTrue(
any(item.category == UserWarning for item in warning_list))
self.assertTrue(any(warning_msg in str(item) for item in warning_list))
self.assertIsInstance(result, Cube)
self.assertIsInstance(perc_coord, iris.coords.Coord)
