def test_get_mag_h_from_geo(self):
"""ChannelConverter_test.test_get_mag_d_from_geo()
``X`` and ``Y`` are the north and east components of the horizontal
magnetic field vector ``H``
"""
# Call get_mag_h_from_geo using X,Y of 3,4. Expect H to be 5.
X = 3
Y = 4
H = channel.get_mag_h_from_geo(X, Y)
assert_almost_equal(H, 5, 8, "Expect H to be 5.", True)
