def setUp(self):
nt = 10
data = np.arange(nt, dtype=np.float32)
cube = Cube(data, standard_name='air_temperature', units='K')
# Temporal coordinate.
t_units = Unit('hours since 1970-01-01 00:00:00', calendar='gregorian')
t_coord = DimCoord(points=np.arange(nt),
standard_name='time',
units=t_units)
cube.add_dim_coord(t_coord, 0)
# Increasing 1D time-series cube.
self.series_inc_cube = cube
self.series_inc = CubeSignature(self.series_inc_cube)
# Decreasing 1D time-series cube.
self.series_dec_cube = self.series_inc_cube.copy()
self.series_dec_cube.remove_coord('time')
t_tmp = DimCoord(points=t_coord.points[::-1],
standard_name='time',
units=t_units)
self.series_dec_cube.add_dim_coord(t_tmp, 0)
self.series_dec = CubeSignature(self.series_dec_cube)
# Scalar 0D time-series cube with scalar time coordinate.
cube = Cube(0, standard_name='air_temperature', units='K')
cube.add_aux_coord(
DimCoord(points=nt, standard_name='time', units=t_units))
self.scalar_cube = cube
def test_circular(self):
series_inc = self.series_inc
circular_cube = self.series_inc_cube.copy()
circular_cube.coord('time').circular = True
circular = CubeSignature(circular_cube)
self.assertNotEqual(circular.dim_metadata, series_inc.dim_metadata)
self.assertEqual(circular.dim_metadata, circular.dim_metadata)
def test_1d_single_value_common_axis(self):
# Manually promote scalar time cube to be a 1d cube.
single = CubeSignature(new_axis(self.scalar_cube, 'time'))
self.assertEqual(self.series_inc.dim_metadata, single.dim_metadata)
self.assertEqual(self.series_dec.dim_metadata, single.dim_metadata)
def test_scalar_non_common_axis(self):
scalar = CubeSignature(self.scalar_cube)
self.assertNotEqual(self.series_inc.dim_metadata, scalar.dim_metadata)
self.assertNotEqual(self.series_dec.dim_metadata, scalar.dim_metadata)
