def test_uranus_perihelion_aphelion():
"""Tests the perihelion_aphelion() method of Uranus class"""
epoch = Epoch(1960, 1, 1.0)
e = Uranus.perihelion_aphelion(epoch)
y, m, d, h, mi, s = e.get_full_date()
assert abs(y - 1966) < TOL, \
"ERROR: 1st perihelion_aphelion() test doesn't match"
assert abs(m - 5) < TOL, \
"ERROR: 2nd perihelion_aphelion() test doesn't match"
assert abs(d - 18) < TOL, \
"ERROR: 3rd perihelion_aphelion() test doesn't match"
epoch = Epoch(2009, 1, 1.0)
e = Uranus.perihelion_aphelion(epoch, perihelion=False)
y, m, d, h, mi, s = e.get_full_date()
assert abs(y - 2009) < TOL, \
"ERROR: 4th perihelion_aphelion() test doesn't match"
assert abs(m - 2) < TOL, \
"ERROR: 5th perihelion_aphelion() test doesn't match"
assert abs(d - 23) < TOL, \
"ERROR: 6th perihelion_aphelion() test doesn't match"
def test_uranus_geocentric_position():
"""Tests the geocentric_position() method of Uranus class"""
epoch = Epoch(1992, 12, 20.0)
ra, dec, elon = Uranus.geocentric_position(epoch)
assert ra.ra_str(n_dec=1) == "19h 13' 48.7''", \
"ERROR: 1st geocentric_position() test doesn't match"
assert dec.dms_str(n_dec=1) == "-22d 46' 13.0''", \
"ERROR: 2nd geocentric_position() test doesn't match"
assert elon.dms_str(n_dec=1) == "18d 44' 18.7''", \
"ERROR: 3rd geocentric_position() test doesn't match"
def test_uranus_geometric_heliocentric_position():
"""Tests the geometric_heliocentric_position() method of Uranus class"""
epoch = Epoch(2018, 10, 27.0)
lon, lat, r = Uranus.geometric_heliocentric_position(epoch)
assert abs(round(lon.to_positive(), 4) - 30.5888) < TOL, \
"ERROR: 1st geometric_heliocentric_position() test doesn't match"
assert abs(round(lat, 4) - (-0.5315)) < TOL, \
"ERROR: 2nd geometric_heliocentric_position() test doesn't match"
assert abs(round(r, 5) - 19.86964) < TOL, \
"ERROR: 3rd geometric_heliocentric_position() test doesn't match"
def test_uranus_opposition():
"""Tests the opposition() method of Uranus class"""
epoch = Epoch(1780, 12, 1.0)
oppo = Uranus.opposition(epoch)
y, m, d = oppo.get_date()
assert abs(round(y, 0) - 1780) < TOL, \
"ERROR: 1st opposition() test doesn't match"
assert abs(round(m, 0) - 12) < TOL, \
"ERROR: 2nd opposition() test doesn't match"
assert abs(round(d, 4) - 17.5998) < TOL, \
"ERROR: 3rd opposition() test doesn't match"
def test_uranus_conjunction():
"""Tests the conjunction() method of Uranus class"""
epoch = Epoch(1993, 10, 1.0)
conjunction = Uranus.conjunction(epoch)
y, m, d = conjunction.get_date()
assert abs(round(y, 0) - 1994) < TOL, \
"ERROR: 1st conjunction() test doesn't match"
assert abs(round(m, 0) - 1) < TOL, \
"ERROR: 2nd conjunction() test doesn't match"
assert abs(round(d, 4) - 12.7365) < TOL, \
"ERROR: 3rd conjunction() test doesn't match"
def test_uranus_passage_nodes():
"""Tests the passage_nodes() method of Uranus class"""
epoch = Epoch(2019, 1, 1)
time, r = Uranus.passage_nodes(epoch)
y, m, d = time.get_date()
d = round(d, 1)
r = round(r, 4)
assert abs(y - 2028) < TOL, \
"ERROR: 1st passage_nodes() test doesn't match"
assert abs(m - 8) < TOL, \
"ERROR: 2nd passage_nodes() test doesn't match"
assert abs(d - 23.2) < TOL, \
"ERROR: 3rd passage_nodes() test doesn't match"
assert abs(r - 19.3201) < TOL, \
"ERROR: 4th passage_nodes() test doesn't match"
def test_uranus_orbital_elements_j2000():
"""Tests the orbital_elements_j2000() method of Uranus class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Uranus.orbital_elements_j2000(epoch)
assert abs(round(l, 6) - 234.602641) < TOL, \
"ERROR: 1st orbital_elements_j2000() test doesn't match"
assert abs(round(a, 8) - 19.21844604) < TOL, \
"ERROR: 2nd orbital_elements_j2000() test doesn't match"
assert abs(round(e, 7) - 0.0463634) < TOL, \
"ERROR: 3rd orbital_elements_j2000() test doesn't match"
assert abs(round(i, 6) - 0.772094) < TOL, \
"ERROR: 4th orbital_elements_j2000() test doesn't match"
assert abs(round(ome, 5) - 74.05468) < TOL, \
"ERROR: 5th orbital_elements_j2000() test doesn't match"
assert abs(round(arg, 6) - 99.009058) < TOL, \
"ERROR: 6th orbital_elements_j2000() test doesn't match"
def test_uranus_orbital_elements_mean_equinox():
"""Tests the orbital_elements_mean_equinox() method of Uranus class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Uranus.orbital_elements_mean_equinox(epoch)
assert abs(round(l, 6) - 235.517526) < TOL, \
"ERROR: 1st orbital_elements_mean_equinox() test doesn't match"
assert abs(round(a, 8) - 19.21844604) < TOL, \
"ERROR: 2nd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(e, 7) - 0.0463634) < TOL, \
"ERROR: 3rd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(i, 6) - 0.77372) < TOL, \
"ERROR: 4th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(ome, 5) - 74.34776) < TOL, \
"ERROR: 5th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(arg, 6) - 99.630865) < TOL, \
"ERROR: 6th orbital_elements_mean_equinox() test doesn't match"