def test_summary_table_is_always_masked(self, triage_setup):
# First, try grabbing all of the keywords
ic = ImageFileCollection(location=triage_setup.test_dir, keywords='*')
assert ic.summary.masked
# Now, try keywords that every file will have
ic.keywords = ['bitpix']
assert ic.summary.masked
# What about keywords that include some that will surely be missing?
ic.keywords = ['bitpix', 'dsafui']
assert ic.summary.masked
def test_type_of_empty_collection(self, triage_setup):
# Test for implementation of the suggestion in
#
# https://github.com/astropy/ccdproc/issues/601
#
# in which an empty collection with no keys has but with files
# returns a summary table with one column, but an empty collection
# with no keys and no files returns None.
# Make a dummy keyword that we then delete.
with catch_warnings(AstropyUserWarning) as warning_lines:
ic = ImageFileCollection(triage_setup.test_dir, keywords=['fafa'])
assert "no FITS files in the collection."
ic.keywords = []
assert set(ic.summary.colnames) == set(['file'])
# Remove all of the fits files
path = Path(triage_setup.test_dir)
for p in path.iterdir():
p.unlink()
# Now the summary should be none
ic = ImageFileCollection(triage_setup.test_dir)
assert ic.summary is None
assert ic.keywords == []
def test_keyword_setting(self, new_keywords, collection_keys,
triage_setup):
collection = ImageFileCollection(location=triage_setup.test_dir,
keywords=collection_keys)
tbl_orig = collection.summary
collection.keywords = new_keywords
tbl_new = collection.summary
if set(new_keywords).issubset(collection_keys):
# should just delete columns without rebuilding table
assert(tbl_orig is tbl_new)
else:
# we need new keywords so must rebuild
assert(tbl_orig is not tbl_new)
for key in new_keywords:
assert(key in tbl_new.keys())
assert (tbl_orig['file'] == tbl_new['file']).all()
assert (tbl_orig['imagetyp'] == tbl_new['imagetyp']).all()
assert 'filter' not in tbl_new.keys()
assert 'object' not in tbl_orig.keys()
def test_setting_keywords_to_none(self, triage_setup):
ic = ImageFileCollection(triage_setup.test_dir, keywords=['imagetyp'])
ic.keywords = None
assert ic.summary == []
def test_keyword_setting_to_empty_list(self, triage_setup):
ic = ImageFileCollection(triage_setup.test_dir)
ic.keywords = []
assert ['file'] == ic.keywords
