def test_guess_current_distribution_fraunhofer(self):
"""Test identifying a fraunhofer like pattern.
"""
fields, fraunhofer_like_ics = self.create_fraunhofer_like()
offsets, first_nodes, amplitudes, c_dis = guess_current_distribution(
fields, fraunhofer_like_ics, 5, 4)
self.validate_fraunhofer(offsets, first_nodes, amplitudes, c_dis)
def test_guess_current_distribution_squid(self):
"""Test identifying a SQUID like pattern.
"""
fields, squid_like_ics = self.create_squid_like()
offsets, first_nodes, amplitudes, c_dis = guess_current_distribution(
fields, squid_like_ics, 5, 4)
self.validate_squid(offsets, first_nodes, amplitudes, c_dis)
def test_guess_current_distribution_too_small_data(self):
"""Test handling data which do not comport enough points.
"""
fields = np.linspace(-1, 1, 201)
fraunhofer_like_ics = np.abs(np.sinc(2 * (fields - 0.1)))
offsets, first_nodes, amplitudes, c_dis = guess_current_distribution(
fields, fraunhofer_like_ics, 5, 4)
np.testing.assert_almost_equal(offsets, 0.1)
assert amplitudes == 1.0
def test_2D_inputs():
"""Test that we can handle properly 2D inputs."""
fields_f, fraunhofer_like_ics = create_fraunhofer_like()
fields_s, squid_like_ics = create_squid_like()
# 2D inputs
fields = np.empty((2, len(fields_f)))
fields[0] = fields_f
fields[1] = fields_s
ics = np.empty_like(fields)
ics[0] = fraunhofer_like_ics
ics[1] = squid_like_ics
offsets, first_nodes, amplitudes, c_dis = guess_current_distribution(
fields, ics, 5, 4)
for o, f, a, cd, validator in zip(offsets, first_nodes, amplitudes, c_dis,
(validate_fraunhofer, validate_squid)):
validator(o, f, a, cd)
def test_3D_inputs(self):
"""Test that we can handle properly 3D inputs."""
fields_f, fraunhofer_like_ics = self.create_fraunhofer_like()
fields_s, squid_like_ics = self.create_squid_like()
# 3D inputs
fields = np.empty((2, 2, len(fields_f)))
fields[0, :] = fields_f
fields[1, :] = fields_s
ics = np.empty_like(fields)
ics[0, :] = fraunhofer_like_ics
ics[1, :] = squid_like_ics
offsets, first_nodes, amplitudes, c_dis = guess_current_distribution(
fields, ics, 5, 4)
for o, f, a, cd, validator in zip(
offsets, first_nodes, amplitudes, c_dis,
(self.validate_fraunhofer, self.validate_squid)):
validator(o[0], f[0], a[0], cd[0])
validator(o[1], f[1], a[1], cd[1])