def test_multiple_line_output():
"""Check that an error occurs when an ID corresponds to multiple lines in the GSC"""
gs_id = 'N94D006564'
with pytest.raises(ValueError) as excinfo:
utils.query_gsc(gs_id=gs_id)
assert 'multiple lines' in str(
excinfo.value
), 'GSC only finding one line for an ID which has multiple lines'
def test_fake_guidestar_id():
"""Check errors built into querying method"""
# Check an input guide star ID that isn't found
with pytest.raises(NameError) as excinfo:
gs_id = 'fakeid'
utils.query_gsc(gs_id=gs_id, catalog='GSC242')
assert 'No guide stars match' in str(
excinfo.value), 'Fake Guide Star ID incorrectly found in catalog'
def test_successful_query():
"""Test a query that should be successful"""
gs_id = 'N13I000018'
dataframe = utils.query_gsc(gs_id=gs_id, catalog='GSC242')
assert len(dataframe) == 1
gs_ra = dataframe['ra'][0]
gs_dec = dataframe['dec'][0]
assert np.isclose(gs_ra, 273.206729760604, 1e-5)
assert np.isclose(gs_dec, 65.5335149359777, 1e-5)
def test_successful_query():
"""Test a query that should be successful"""
gs_id = 'N13I000018'
dataframe = utils.query_gsc(gs_id=gs_id, catalog='GSC241')
assert len(dataframe) == 1
gs_ra = dataframe['ra'][0]
gs_dec = dataframe['dec'][0]
assert pytest.approx(gs_ra, 1e-5) == 273.206729760604
assert pytest.approx(gs_dec, 1e-5) == 65.5335149359777
def test_coordinate_combinations():
"""
Test different possible combinations of coordinates to query the GSC
These inputs were checked for GSC2.4.2 and should return guide stars. A
change to the guide star catalog could cause this test to throw an error
if the guide star entries have changed
"""
input_dict = {
'gs_id': 'N13I000018',
'ra': 273.206729584718,
'dec': 65.5335161247318,
'cone_radius': 0.1,
'minra': 273.2,
'maxra': 273.21,
'mindec': 65.5,
'maxdec': 65.55,
}
for L in range(0, len(input_dict) + 1):
for subset in itertools.combinations(list(input_dict.keys()), L):
# Check only 1 coordinate specification/a full set of coordinates is being used
if set(subset) not in [
set(['gs_id']),
set(['ra', 'dec']),
set(['ra', 'dec', 'cone_radius']),
set(['minra', 'maxra', 'mindec', 'maxdec'])
]:
with pytest.raises(ValueError):
subset_dict = dict((k, input_dict[k]) for k in subset)
utils.query_gsc(**subset_dict, catalog='GSC242')
# Check that the remaining combinations should successfully run
else:
subset_dict = dict((k, input_dict[k]) for k in subset)
utils.query_gsc(**subset_dict, catalog='GSC242')
