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import datetime as dt |
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import numpy as np |
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import pytest |
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import aacgmv2 |
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class TestCAACGMV2(object): |
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"""Unit tests for the AACGMV2 wrapped C code.""" |
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def setup_method(self): |
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"""Run before every method to create a clean testing setup.""" |
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self.date_args = [(2014, 3, 22, 3, 11, 0), (2018, 1, 1, 0, 0, 0)] |
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self.long_date = [2014, 3, 22, 3, 11, 0] |
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self.mlat = None |
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self.mlon = None |
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self.rshell = None |
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self.mlt = None |
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self.lat_in = [45.5, 60] |
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self.lon_in = [-23.5, 0] |
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self.alt_in = [1135, 300] |
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self.code = {'G2A': aacgmv2._aacgmv2.G2A, 'A2G': aacgmv2._aacgmv2.A2G, |
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'TG2A': aacgmv2._aacgmv2.G2A + aacgmv2._aacgmv2.TRACE, |
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'TA2G': aacgmv2._aacgmv2.A2G + aacgmv2._aacgmv2.TRACE} |
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self.lat_comp = {'G2A': [48.1902, 58.2194], 'A2G': [30.7550, 50.4371], |
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'TG2A': [48.1954, 58.2189], 'TA2G': [30.7661, 50.4410]} |
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self.lon_comp = {'G2A': [57.7505, 80.7282], 'A2G': [-94.1724, -77.5323], |
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'TG2A': [57.7456, 80.7362], |
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'TA2G': [-94.1727, -77.5440]} |
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self.r_comp = {'G2A': [1.1775, 1.0457], 'A2G': [1133.6246, 305.7308], |
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'TG2A': [1.1775, 1.0457], 'TA2G': [1133.6282, 305.7322]} |
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def teardown_method(self): |
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"""Run after every method to clean up previous testing.""" |
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del self.date_args, self.long_date, self.mlat, self.mlon, self.mlt |
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del self.lat_in, self.lon_in, self.alt_in, self.lat_comp, self.lon_comp |
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del self.r_comp, self.code |
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@pytest.mark.parametrize('mattr,val', [(aacgmv2._aacgmv2.G2A, 0), |
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(aacgmv2._aacgmv2.A2G, 1), |
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(aacgmv2._aacgmv2.TRACE, 2), |
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(aacgmv2._aacgmv2.ALLOWTRACE, 4), |
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(aacgmv2._aacgmv2.BADIDEA, 8), |
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(aacgmv2._aacgmv2.GEOCENTRIC, 16)]) |
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def test_constants(self, mattr, val): |
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"""Test module constants. |
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Parameters |
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---------- |
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mattr : int |
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Attribute holding an integer value |
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val : int |
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Expected integer value |
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""" |
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np.testing.assert_equal(mattr, val) |
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@pytest.mark.parametrize('idate', [0, 1]) |
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def test_set_datetime(self, idate): |
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"""Test set_datetime. |
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Parameters |
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---------- |
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idate : int |
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Integer date value |
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""" |
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self.mlt = aacgmv2._aacgmv2.set_datetime(*self.date_args[idate]) |
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assert self.mlt is None |
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def test_fail_set_datetime(self): |
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"""Test unsuccessful set_datetime.""" |
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self.long_date[0] = 1013 |
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with pytest.raises(RuntimeError) as rerr: |
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aacgmv2._aacgmv2.set_datetime(*self.long_date) |
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assert str(rerr).find( |
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"AACGM_v2_SetDateTime returned error code -1") >= 0 |
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@pytest.mark.parametrize('idate,ckey', [(0, 'G2A'), (1, 'G2A'), |
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(0, 'A2G'), (1, 'A2G'), |
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(0, 'TG2A'), (1, 'TG2A'), |
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(0, 'TA2G'), (1, 'TA2G')]) |
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def test_convert(self, idate, ckey): |
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"""Test convert from geographic to magnetic coordinates. |
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86
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Parameters |
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---------- |
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idate : int |
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Integer date value |
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ckey : str |
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Transforming string combination |
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""" |
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aacgmv2._aacgmv2.set_datetime(*self.date_args[idate]) |
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(self.mlat, self.mlon, |
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self.rshell) = aacgmv2._aacgmv2.convert(self.lat_in[idate], |
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self.lon_in[idate], |
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self.alt_in[idate], |
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self.code[ckey]) |
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np.testing.assert_almost_equal(self.mlat, self.lat_comp[ckey][idate], |
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decimal=4) |
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np.testing.assert_almost_equal(self.mlon, self.lon_comp[ckey][idate], |
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decimal=4) |
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np.testing.assert_almost_equal(self.rshell, self.r_comp[ckey][idate], |
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decimal=4) |
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@pytest.mark.parametrize('ckey', ['G2A', 'A2G', 'TG2A', 'TA2G']) |
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def test_convert_arr(self, ckey): |
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"""Test convert_arr using from magnetic to geodetic coordinates. |
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Parameters |
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---------- |
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ckey : str |
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Transforming string combination |
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""" |
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aacgmv2._aacgmv2.set_datetime(*self.date_args[0]) |
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(self.mlat, self.mlon, self.rshell, |
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bad_ind) = aacgmv2._aacgmv2.convert_arr(self.lat_in, self.lon_in, |
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self.alt_in, |
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self.code[ckey]) |
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np.testing.assert_equal(len(self.mlat), len(self.lat_in)) |
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np.testing.assert_almost_equal(self.mlat[0], self.lat_comp[ckey][0], |
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decimal=4) |
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np.testing.assert_almost_equal(self.mlon[0], self.lon_comp[ckey][0], |
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decimal=4) |
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np.testing.assert_almost_equal(self.rshell[0], self.r_comp[ckey][0], |
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decimal=4) |
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np.testing.assert_equal(bad_ind[0], -1) |
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def test_forbidden(self): |
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"""Test convert failure.""" |
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self.lat_in[0] = 7 |
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with pytest.raises(RuntimeError) as rerr: |
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aacgmv2._aacgmv2.convert(self.lat_in[0], self.lon_in[0], 0, |
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aacgmv2._aacgmv2.G2A) |
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assert str(rerr).find("AACGM_v2_Convert returned error code -1") >= 0 |
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def test_convert_high_denied(self): |
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"""Test for failure when converting to high alt geod to mag coords.""" |
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aacgmv2._aacgmv2.set_datetime(*self.date_args[0]) |
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with pytest.raises(RuntimeError) as rerr: |
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aacgmv2._aacgmv2.convert(self.lat_in[0], self.lon_in[0], 5500, |
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aacgmv2._aacgmv2.G2A) |
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assert str(rerr).find("AACGM_v2_Convert returned error code -4") >= 0 |
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150
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@pytest.mark.parametrize('code,lat_comp,lon_comp,r_comp', |
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[(aacgmv2._aacgmv2.G2A + aacgmv2._aacgmv2.TRACE, |
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59.9753, 57.7294, 1.8626), |
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(aacgmv2._aacgmv2.G2A |
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+ aacgmv2._aacgmv2.ALLOWTRACE, 59.9753, 57.7294, |
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1.8626), |
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(aacgmv2._aacgmv2.G2A + aacgmv2._aacgmv2.BADIDEA, |
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58.7286, 56.4296, 1.8626)]) |
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def test_convert_high(self, code, lat_comp, lon_comp, r_comp): |
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"""Test convert from high altitude geodetic to magnetic coordinates. |
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Parameters |
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---------- |
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code : int |
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Integer code value |
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lat_comp : float |
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Comparison latitude in degrees N |
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lon_comp : float |
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Comparison longitude in degrees E |
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r_comp : float |
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Comparison radius in Earth Radii. |
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""" |
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aacgmv2._aacgmv2.set_datetime(*self.date_args[0]) |
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(self.mlat, self.mlon, |
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self.rshell) = aacgmv2._aacgmv2.convert(self.lat_in[0], self.lon_in[0], |
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5500, code) |
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np.testing.assert_almost_equal(self.mlat, lat_comp, decimal=4) |
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np.testing.assert_almost_equal(self.mlon, lon_comp, decimal=4) |
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np.testing.assert_almost_equal(self.rshell, r_comp, decimal=4) |
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181
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@pytest.mark.parametrize('code,lat_comp,lon_comp,r_comp', |
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[(aacgmv2._aacgmv2.G2A |
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+ aacgmv2._aacgmv2.GEOCENTRIC, 48.3784, 57.7844, |
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1.1781), |
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(aacgmv2._aacgmv2.G2A |
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+ aacgmv2._aacgmv2.GEOCENTRIC, 48.3784, 57.7844, |
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1.1781), |
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(aacgmv2._aacgmv2.A2G |
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+ aacgmv2._aacgmv2.GEOCENTRIC, 30.6117, -94.1724, |
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1135.0000), |
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191
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(aacgmv2._aacgmv2.G2A + aacgmv2._aacgmv2.TRACE |
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+ aacgmv2._aacgmv2.GEOCENTRIC, 48.3836, 57.7793, |
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1.1781), |
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(aacgmv2._aacgmv2.A2G + aacgmv2._aacgmv2.TRACE |
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+ aacgmv2._aacgmv2.GEOCENTRIC, 30.6227, -94.1727, |
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1135.0000)]) |
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def test_convert_geocentric(self, code, lat_comp, lon_comp, r_comp): |
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"""Test convert for different code inputs with geocentric coords. |
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Parameters |
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---------- |
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code : int |
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Integer code value |
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lat_comp : float |
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Comparison latitude in degrees N |
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lon_comp : float |
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Comparison longitude in degrees E |
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r_comp : float |
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Comparison radius in Earth Radii. |
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""" |
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aacgmv2._aacgmv2.set_datetime(*self.date_args[0]) |
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(self.mlat, self.mlon, |
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self.rshell) = aacgmv2._aacgmv2.convert(self.lat_in[0], self.lon_in[0], |
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self.alt_in[0], code) |
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np.testing.assert_almost_equal(self.mlat, lat_comp, decimal=4) |
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np.testing.assert_almost_equal(self.mlon, lon_comp, decimal=4) |
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np.testing.assert_almost_equal(self.rshell, r_comp, decimal=4) |
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220
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@pytest.mark.parametrize('marg,mlt_comp', |
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[(12.0, -153.6033), (25.0, 41.3967), |
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(-1.0, 11.3967)]) |
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def test_inv_mlt_convert(self, marg, mlt_comp): |
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224
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"""Test MLT inversion. |
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225
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226
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Parameters |
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227
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---------- |
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228
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marg : float |
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229
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Input argument |
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230
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mlt_comp : float |
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231
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Expected output |
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232
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233
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""" |
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234
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self.long_date = list(self.long_date) |
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235
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self.long_date.append(marg) |
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236
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self.mlon = aacgmv2._aacgmv2.inv_mlt_convert(*self.long_date) |
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237
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np.testing.assert_almost_equal(self.mlon, mlt_comp, decimal=4) |
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238
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239
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def test_inv_mlt_convert_arr(self): |
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240
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"""Test array MLT inversion.""" |
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241
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self.date_args = [[ldate for j in range(3)] for ldate in self.long_date] |
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242
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self.mlt = [12.0, 25.0, -1.0] |
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243
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self.lon_in = [-153.6033, 41.3967, 11.3967] |
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244
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self.mlon = aacgmv2._aacgmv2.inv_mlt_convert_arr(*self.date_args, |
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245
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self.mlt) |
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246
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np.testing.assert_almost_equal(self.mlon, self.lon_in, decimal=4) |
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247
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248
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@pytest.mark.parametrize('marg,mlt_comp', |
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249
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[(12.0, -153.6033), (25.0, 41.3967), |
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250
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(-1.0, 11.3967)]) |
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251
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def test_inv_mlt_convert_yrsec(self, marg, mlt_comp): |
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252
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"""Test MLT inversion with year and seconds of year. |
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253
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254
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Parameters |
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255
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---------- |
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256
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marg : float |
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257
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Input argument |
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258
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mlt_comp : float |
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259
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Expected output |
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260
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261
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""" |
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262
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dtime = dt.datetime(*self.long_date) |
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263
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soy = (int(dtime.strftime("%j")) - 1) * 86400 + dtime.hour * 3600 \ |
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264
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+ dtime.minute * 60 + dtime.second |
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265
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266
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self.mlon = aacgmv2._aacgmv2.inv_mlt_convert_yrsec(dtime.year, soy, |
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267
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marg) |
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268
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269
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np.testing.assert_almost_equal(self.mlon, mlt_comp, decimal=4) |
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270
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271
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del dtime, soy |
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272
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273
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@pytest.mark.parametrize('marg,mlt_comp', |
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274
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[(270.0, 16.2402), (80.0, 3.5736), |
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275
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(-90.0, 16.2402)]) |
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def test_mlt_convert(self, marg, mlt_comp): |
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"""Test MLT calculation with different longitudes. |
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Parameters |
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---------- |
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marg : float |
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Input argument |
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mlt_comp : float |
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Expected output |
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""" |
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mlt_args = list(self.long_date) |
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mlt_args.append(marg) |
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self.mlt = aacgmv2._aacgmv2.mlt_convert(*mlt_args) |
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np.testing.assert_almost_equal(self.mlt, mlt_comp, decimal=4) |
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292
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def test_mlt_convert_arr(self): |
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"""Test array MLT conversion.""" |
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self.date_args = [[ldate for j in range(3)] for ldate in self.long_date] |
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self.mlon = [-153.6033, 41.3967, 11.3967] |
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self.lon_in = [12.0, 1.0, 23.0] |
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self.mlt = aacgmv2._aacgmv2.mlt_convert_arr(*self.date_args, self.mlon) |
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np.testing.assert_almost_equal(self.mlt, self.lon_in, decimal=4) |
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299
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300
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@pytest.mark.parametrize('marg,mlt_comp', |
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[(270.0, 16.2402), (80.0, 3.5736), |
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(-90.0, 16.2402)]) |
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def test_mlt_convert_yrsec(self, marg, mlt_comp): |
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304
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"""Test MLT calculation using year and seconds of year. |
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305
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306
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Parameters |
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---------- |
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marg : float |
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309
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Input argument |
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mlt_comp : float |
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Expected output |
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""" |
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dtime = dt.datetime(*self.long_date) |
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soy = (int(dtime.strftime("%j")) - 1) * 86400 + dtime.hour * 3600 \ |
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316
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+ dtime.minute * 60 + dtime.second |
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318
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self.mlt = aacgmv2._aacgmv2.mlt_convert_yrsec(dtime.year, soy, marg) |
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320
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np.testing.assert_almost_equal(self.mlt, mlt_comp, decimal=4) |
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del dtime, soy |
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aburrell /
aacgmv2
