def test_catalog_with_self_offset(tmpdir, start_offset):
# Copy just one file to the temporary directory...
original_data = data_directory()
data = tmpdir.strpath
shutil.copyfile(os.path.join(original_data, 'M71-001-trimmed-R.csv'),
os.path.join(data, 'M71-001-trimmed-R.csv'))
source = Table.read(os.path.join(data, 'M71-001-trimmed-R.csv'))
# Shift some of the RAs by half a degree.
source['RA'][start_offset:] += 0.5
source.write(os.path.join(data, 'M71-002-trimmed-R.csv'))
files_to_match = os.path.join(data, '*.csv')
result = f_group(files_to_match)
n_original = len(source)
# The offset objects in the second group should not match. No match is
# indicated by a DataNum of zero.
assert np.all(result['DataNum'][len(source) + start_offset:] == 0)
# Any objects not offset should match the original source.
assert np.all(result['DataNum'][n_original:n_original + start_offset] ==
np.arange(start_offset) + 1)
def test_catalogue_with_self(tmpdir):
"""
Two identical lists should produce a results in which the second
matches the first exactly.
"""
# Copy just one file to the temporary directory...
original_data = data_directory()
data = tmpdir.strpath
shutil.copyfile(os.path.join(original_data, 'M71-001-trimmed-R.csv'),
os.path.join(data, 'M71-001-trimmed-R.csv'))
# Make a copy of the data file...
shutil.copyfile(os.path.join(data, 'M71-001-trimmed-R.csv'),
os.path.join(data, 'M71-002-trimmed-R.csv'))
files_to_match = os.path.join(data, '*-trimmed-R.csv')
print(files_to_match)
source = Table.read(os.path.join(data, 'M71-001-trimmed-R.csv'))
result = f_group(files_to_match)
# Every source should appear exactly twice.
assert len(result) == 2 * len(source)
n_original = len(source)
# The first n_original sources should have their own number as match.
assert np.all(result['DataNum'][:n_original] ==
(np.arange(n_original) + 1))
# The second batch of n_original sources should also have their own number
# as match since they were identical to the first.
print(result[n_original:])
assert np.all(result['DataNum'][n_original:] ==
(np.arange(n_original) + 1))