def test_query_name(self):
cadc = Cadc()
result1 = cadc.query_name('M31')
assert len(result1) > 20
# test case insensitive
result2 = cadc.query_name('m31')
assert len(result1) == len(result2)
def test_async(self):
# test async calls
cadc = Cadc()
# run the query in sync mode first
expected = cadc.exec_sync(
"select top 3 observationID from caom2.Observation where "
"collection='IRIS' order by observationID")
# now run the query in async mode
job = cadc.create_async(
"select top 3 observationID from caom2.Observation where "
"collection='IRIS' order by observationID")
job = job.run().wait()
job.raise_if_error()
result = job.fetch_result().to_table()
assert len(expected) == len(result)
for ii in range(0, 2):
assert expected['observationID'][ii] == result['observationID'][ii]
# load job again
loaded_job = cadc.load_async_job(job.job_id)
result = loaded_job.fetch_result().to_table()
assert len(expected) == len(result)
for ii in range(0, 2):
assert expected['observationID'][ii] == result['observationID'][ii]
def test_misc():
cadc = Cadc()
coords = '08h45m07.5s +54d18m00s'
coords_ra = parse_coordinates(coords).fk5.ra.degree
coords_dec = parse_coordinates(coords).fk5.dec.degree
assert "SELECT * from caom2.Observation o join caom2.Plane p ON " \
"o.obsID=p.obsID WHERE INTERSECTS( CIRCLE('ICRS', " \
"{}, {}, 0.3), position_bounds) = 1 " \
"AND (quality_flag IS NULL OR quality_flag != 'junk') " \
"AND collection='CFHT' AND dataProductType='image'".\
format(coords_ra, coords_dec) == \
cadc._args_to_payload(**{'coordinates': coords,
'radius': 0.3 * u.deg, 'collection':
'CFHT',
'data_product_type': 'image'})['query']
# no collection or data_product_type
assert "SELECT * from caom2.Observation o join caom2.Plane p ON " \
"o.obsID=p.obsID WHERE INTERSECTS( CIRCLE('ICRS', " \
"{}, {}, 0.3), position_bounds) = 1 AND (quality_flag IS NULL OR " \
"quality_flag != 'junk')".format(coords_ra, coords_dec) == \
cadc._args_to_payload(**{'coordinates': coords,
'radius': '0.3 deg'})['query']
def test_query_name(self):
cadc = Cadc()
result1 = cadc.query_name('M31-B14')
assert len(result1) > 20
# test case insensitive
result2 = cadc.query_name('m31-b14')
assert len(result1) == len(result2)
def test_exec_sync():
# save results in a file
# create the VOTable result
# example from http://docs.astropy.org/en/stable/io/votable/
votable = VOTableFile()
resource = Resource()
votable.resources.append(resource)
table = Table(votable)
resource.tables.append(table)
table.fields.extend([
Field(votable, name="filename", datatype="char", arraysize="*"),
Field(votable, name="matrix", datatype="double", arraysize="2x2")])
table.create_arrays(2)
table.array[0] = ('test1.xml', [[1, 0], [0, 1]])
table.array[1] = ('test2.xml', [[0.5, 0.3], [0.2, 0.1]])
buffer = BytesIO()
votable.to_xml(buffer)
cadc = Cadc(auth_session=requests.Session())
response = Mock()
response.to_table.return_value = buffer.getvalue()
cadc.cadctap.search = Mock(return_value=response)
output_file = '{}/test_vooutput.xml'.format(tempfile.tempdir)
cadc.exec_sync('some query', output_file=output_file)
actual = parse(output_file)
assert len(votable.resources) == len(actual.resources) == 1
assert len(votable.resources[0].tables) ==\
len(actual.resources[0].tables) == 1
actual_table = actual.resources[0].tables[0]
try:
# TODO remove when astropy LTS upgraded
from astropy.utils.diff import report_diff_values
assert report_diff_values(table, actual_table, fileobj=sys.stdout)
except ImportError:
pass
def test_login(self):
cadc = Cadc()
now = datetime.utcnow()
cadc.login(os.environ['CADC_USER'], os.environ['CADC_PASSWD'])
query = "select top 1 * from caom2.Plane where " \
"metaRelease>'{}'".format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.query(query)
assert len(result) == 1
def test_login(self):
cadc = Cadc()
now = datetime.utcnow()
cadc.login(os.environ['CADC_USER'], os.environ['CADC_PASSWD'])
query = "select top 1 * from caom2.Plane where " \
"metaRelease>'{}'".format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.query(query)
assert len(result) == 1
def test_get_images(self):
cadc = Cadc()
coords = '08h45m07.5s +54d18m00s'
radius = 0.005 * u.deg
images = cadc.get_images(coords, radius, collection='CFHT')
assert images is not None
for image in images:
assert isinstance(image, fits.HDUList)
def test_get_images_async(self):
cadc = Cadc()
coords = '01h45m07.5s +23d18m00s'
radius = '0.05 deg'
readable_objs = cadc.get_images_async(coords,
radius,
collection="CFHT")
assert readable_objs is not None
for obj in readable_objs:
assert isinstance(obj, FileContainer)
def test_get_tables():
# default parameters
table_set = PropertyMock()
table_set.keys.return_value = ['table1', 'table2']
table_set.values.return_value = ['tab1val', 'tab2val', 'tab3val']
with patch('astroquery.cadc.core.pyvo.dal.TAPService', autospec=True) as tapservice_mock:
tapservice_mock.return_value.tables = table_set
cadc = Cadc()
assert len(cadc.get_tables(only_names=True)) == 2
assert len(cadc.get_tables()) == 3
def test_get_images():
with patch('astroquery.utils.commons.get_readable_fileobj', autospec=True) as readable_fobj_mock:
readable_fobj_mock.return_value = open(data_path('query_images.fits'), 'rb')
cadc = Cadc()
fits_images = cadc.get_images('08h45m07.5s +54d18m00s', 0.01*u.deg,
get_url_list=True)
assert fits_images == ['https://some.url']
fits_images = cadc.get_images('08h45m07.5s +54d18m00s', '0.01 deg')
assert fits_images is not None
assert isinstance(fits_images[0], HDUList)
def test_query(self):
cadc = Cadc()
result = cadc.query(
"select count(*) from caom2.Observation where target_name='M31'")
assert 1000 < result[0][0]
# test that no proprietary results are returned when not logged in
now = datetime.utcnow()
query = "select top 1 * from caom2.Plane where " \
"metaRelease>'{}'".format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.query(query)
assert len(result) == 0
def test_query(self):
cadc = Cadc()
result = cadc.exec_sync(
"select count(*) from caom2.Observation where target_name='M31'")
assert 1000 < result[0][0]
# test that no proprietary results are returned when not logged in
now = datetime.utcnow()
query = "select top 1 * from caom2.Plane where " \
"metaRelease>'{}'".format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 0
def test_load_async_job():
with patch('astroquery.cadc.core.pyvo.dal.TAPService', autospec=True) as tapservice_mock:
with patch('astroquery.cadc.core.pyvo.dal.AsyncTAPJob',
autospec=True) as tapjob_mock:
tapservice_mock.return_value.baseurl.return_value = 'https://www.example.com/tap'
mock_job = Mock()
mock_job.job_id = '123'
tapjob_mock.return_value = mock_job
cadc = Cadc()
jobid = '123'
job = cadc.load_async_job(jobid)
assert job.job_id == '123'
def get_VLASS_images(position, radius, showgrid=False, savefile=''):
cadc = Cadc()
result = cadc.query_region(position, collection='VLASS')
if len(result) == 0:
print('No Data at CADC at position: {}'.format(
position.to_string('hmsdms')))
else:
urls = cadc.get_data_urls(result)
for url in urls:
cutout_url = construct_cadc_url(url, position, radius)
plot_http_fits(cutout_url, showgrid, savefile)
def test_get_table():
table_set = PropertyMock()
tables_result = [Mock() for _ in range(3)]
tables_result[0].name = 'tab1'
tables_result[1].name = 'tab2'
tables_result[2].name = 'tab3'
table_set.values.return_value = tables_result
with patch('astroquery.cadc.core.pyvo.dal.TAPService', autospec=True) as tapservice_mock:
tapservice_mock.return_value.tables = table_set
cadc = Cadc()
assert cadc.get_table('tab2').name == 'tab2'
assert cadc.get_table('foo') is None
def test_get_images_async():
with patch('astroquery.utils.commons.get_readable_fileobj', autospec=True) as readable_fobj_mock:
readable_fobj_mock.return_value = open(data_path('query_images.fits'), 'rb')
cadc = Cadc()
readable_objs = cadc.get_images_async('08h45m07.5s +54d18m00s',
0.01*u.arcmin,
get_url_list=True)
assert readable_objs == ['https://some.url']
readable_objs = cadc.get_images_async('08h45m07.5s +54d18m00s',
'0.01 arcsec')
assert readable_objs is not None
assert isinstance(readable_objs[0], FileContainer)
def test_list_tables(self):
cadc = Cadc()
table_names = cadc.get_tables(only_names=True)
assert len(table_names) > 20
assert 'caom2.Observation' in table_names
assert 'ivoa.ObsCore' in table_names
assert 'tap_schema.tables' in table_names
tables = cadc.get_tables()
assert len(table_names) == len(tables)
for table in tables:
assert table.name in table_names
table = cadc.get_table('caom2.Observation')
assert 'caom2.Observation' == table.name
def test_misc(monkeypatch):
dummyTapHandler = DummyTapHandler()
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
cadc = Cadc(tap_plus_handler=dummyTapHandler)
class Result(object):
pass
result = Result()
result._phase = 'RUN'
with pytest.raises(RuntimeError):
cadc._parse_result(result)
result._phase = 'COMPLETED'
result.results = 'WELL DONE'
assert result.results == cadc._parse_result(result)
coords = '08h45m07.5s +54d18m00s'
coords_ra = parse_coordinates(coords).ra.degree
coords_dec = parse_coordinates(coords).dec.degree
assert "SELECT * from caom2.Observation o join caom2.Plane p ON " \
"o.obsID=p.obsID WHERE INTERSECTS( CIRCLE('ICRS', " \
"{}, {}, 0.3), position_bounds) = 1 " \
"AND (quality_flag IS NULL OR quality_flag != 'junk') " \
"AND collection='CFHT'".format(coords_ra, coords_dec) == \
cadc._args_to_payload(**{'coordinates': coords,
'radius': 0.3, 'collection': 'CFHT'})['query']
# no collection
assert "SELECT * from caom2.Observation o join caom2.Plane p ON " \
"o.obsID=p.obsID WHERE INTERSECTS( CIRCLE('ICRS', " \
"{}, {}, 0.3), position_bounds) = 1 AND (quality_flag IS NULL OR " \
"quality_flag != 'junk')".format(coords_ra, coords_dec) == \
cadc._args_to_payload(**{'coordinates': coords,
'radius': 0.3})['query']
def test_get_collections(self):
cadc = Cadc()
result = cadc.get_collections()
assert len(result) > 10
# test for the presence of a few known collections
assert 'CFHT' in result
assert 'Infrared' in result['CFHT']['Bands']
assert 'Optical' in result['CFHT']['Bands']
assert 'MOST' in result
assert 'Optical' in result['MOST']['Bands']
assert 'GEMINI' in result
assert 'Infrared' in result['GEMINI']['Bands']
assert 'Optical' in result['GEMINI']['Bands']
assert 'JCMT' in result
assert 'Millimeter' in result['JCMT']['Bands']
assert 'DAO' in result
assert 'Infrared' in result['DAO']['Bands']
assert 'Optical' in result['DAO']['Bands']
def test_run_query(monkeypatch):
dummyTapHandler = DummyTapHandler()
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
tap = Cadc(tap_plus_handler=dummyTapHandler)
query = "query"
operation = 'sync'
# default parameters
parameters = {}
parameters['query'] = query
parameters['name'] = None
parameters['output_file'] = None
parameters['output_format'] = 'votable'
parameters['verbose'] = False
parameters['dump_to_file'] = False
parameters['upload_resource'] = None
parameters['upload_table_name'] = None
tap.run_query(query, operation)
dummyTapHandler.check_call('run_query', parameters)
# test with parameters
dummyTapHandler.reset()
output_file = 'output'
output_format = 'format'
verbose = True
upload_resource = 'upload_res'
upload_table_name = 'upload_table'
parameters['query'] = query
parameters['name'] = None
parameters['output_file'] = output_file
parameters['output_format'] = output_format
parameters['verbose'] = verbose
parameters['dump_to_file'] = True
parameters['upload_resource'] = upload_resource
parameters['upload_table_name'] = upload_table_name
tap.run_query(query,
operation,
output_file=output_file,
output_format=output_format,
verbose=verbose,
upload_resource=upload_resource,
upload_table_name=upload_table_name)
dummyTapHandler.check_call('run_query', parameters)
def test_get_collections():
cadc = Cadc()
def mock_run_query(query, output_format=None, maxrec=None,
output_file=None):
assert query == \
'select distinct collection, energy_emBand from caom2.EnumField'
assert output_format is None
assert maxrec is None
assert output_file is None
table = AstroTable(rows=[('CFHT', 'Optical'), ('CFHT', 'Infrared'),
('JCMT', 'Millimeter'), ('DAO', 'Optical'),
('DAO', 'Infrared')],
names=('collection', 'energy_emBand'))
return table
cadc.exec_sync = mock_run_query
result = cadc.get_collections()
assert len(result) == 3
assert 'CFHT' in result
assert 'JCMT' in result
assert 'DAO' in result
def test_login(monkeypatch):
def get_access_url_mock(arg1, arg2):
return "some.url"
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
dummyTapHandler = DummyTapHandler()
tap = Cadc(tap_plus_handler=dummyTapHandler)
user = '******'
password = '******'
cert = 'cert'
# default parameters
parameters = {}
parameters['cookie_prefix'] = cadc_core.CADC_COOKIE_PREFIX
parameters['login_url'] = "some.url"
parameters['verbose'] = False
parameters['user'] = None
parameters['password'] = None
parameters['certificate_file'] = None
tap.login(None, None, None)
dummyTapHandler.check_call('login', parameters)
# test with parameters
dummyTapHandler.reset()
parameters['user'] = user
parameters['password'] = password
parameters['certificate_file'] = cert
tap.login(user, password, cert)
dummyTapHandler.check_call('login', parameters)
def test_get_data_urls():
def get(*args, **kwargs):
class CapsResponse:
def __init__(self):
self.status_code = 200
self.content = b''
def raise_for_status(self):
pass
return CapsResponse()
class Result:
pass
file1 = Mock()
file1.semantics = '#this'
file1.access_url = 'https://get.your.data/path'
file2 = Mock()
file2.semantics = '#aux'
file2.access_url = 'https://get.your.data/auxpath'
file3 = Mock()
file3.semantics = '#preview'
file3.access_url = 'https://get.your.data/previewpath'
# add the package file that should be filtered out
package_file_old = Mock()
package_file_old.semantics = 'http://www.opencadc.org/caom2#pkg'
package_file = Mock()
package_file.semantics = '#package'
result = [file1, file2, file3, package_file_old, package_file]
with patch('pyvo.dal.adhoc.DatalinkResults.from_result_url') as \
dl_results_mock:
dl_results_mock.return_value = result
cadc = Cadc()
cadc._request = get # mock the request
assert [file1.access_url] == \
cadc.get_data_urls({'publisherID': ['ivo://cadc.nrc.ca/foo']})
assert [file1.access_url, file2.access_url, file3.access_url] == \
cadc.get_data_urls({'publisherID': ['ivo://cadc.nrc.ca/foo']},
include_auxiliaries=True)
with pytest.raises(AttributeError):
cadc.get_data_urls(None)
with pytest.raises(AttributeError):
cadc.get_data_urls({'noPublisherID': 'test'})
def test_get_images_against_AS(self):
cadc = Cadc()
coords = '08h45m07.5s +54d18m00s'
radius = 0.05 * u.deg
# Compare results from cadc advanced search to get_images
query = cadc._args_to_payload(**{
'coordinates': coords,
'radius': radius,
'data_product_type': 'image'
})['query']
result = cadc.exec_sync(query)
uri_list = [uri.decode('ascii') for uri in result['publisherID']]
access_url = 'https://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/download'
icrs_coords = parse_coordinates(coords).icrs
data = {
'uris':
' '.join(uri_list),
'params':
'cutout=Circle ICRS {} {} {}'.format(icrs_coords.ra.degree,
icrs_coords.dec.degree,
radius.value),
'method':
'URL List'
}
resp_urls = requests.post(access_url, data).text.split('\r\n')
# Filter out the errors and empty strings
filtered_resp_urls = list(
filter(lambda url: not url.startswith('ERROR') and url != '',
resp_urls))
# This function should return nearly the same urls
image_urls = cadc.get_images(coords, radius, get_url_list=True)
assert len(filtered_resp_urls) == len(image_urls)
def test_list_jobs(self):
cadc = Cadc()
cadc.login(certificate_file=os.environ['CADC_CERT'])
job = cadc.create_async(
"select top 3 observationID from caom2.Observation where "
"collection='IRIS' order by observationID")
job = job.run().wait()
job.raise_if_error()
job.fetch_result().to_table()
jobs = cadc.list_async_jobs()
assert len(jobs) > 0
if len(jobs) > 5:
jobs_subset = cadc.list_async_jobs(last=5)
assert len(jobs_subset) == 5
def test_login_with_cert(self):
for auth_session in [requests.Session()]:
cadc = Cadc(auth_session=auth_session)
now = datetime.utcnow()
query = \
"select top 1 * from caom2.Plane where metaRelease>'{}'".\
format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 0
# following query is to test login with certificates when an
# anonymous query is executed first.
cadc.login(certificate_file=os.environ['CADC_CERT'])
query = \
"select top 1 * from caom2.Plane where metaRelease>'{}'".\
format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 1
cadc.logout()
query = \
"select top 1 * from caom2.Plane where metaRelease>'{}'".\
format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 0
def test_get_data_urls(monkeypatch):
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
def get(*args, **kwargs):
class CapsResponse(object):
def __init__(self):
self.status_code = 200
self.content = b''
def raise_for_status(self):
pass
return CapsResponse()
class Result(object):
pass
vot_result = Result()
vot_result.array = [{'semantics': b'#this',
'access_url': b'https://get.your.data/path'},
{'semantics': b'#aux',
'access_url': b'https://get.your.data/auxpath'}]
monkeypatch.setattr(cadc_core, 'parse_single_table', lambda x: vot_result)
dummyTapHandler = DummyTapHandler()
cadc = Cadc(tap_plus_handler=dummyTapHandler)
cadc._request = get # mock the request
assert [vot_result.array[0]['access_url'].decode('ascii')] == \
cadc.get_data_urls({'caomPublisherID': ['ivo://cadc.nrc.ca/foo']})
assert [vot_result.array[0]['access_url'].decode('ascii'),
vot_result.array[1]['access_url'].decode('ascii')] == \
cadc.get_data_urls({'caomPublisherID': ['ivo://cadc.nrc.ca/foo']},
include_auxiliaries=True)
with pytest.raises(AttributeError):
cadc.get_data_urls(None)
with pytest.raises(AttributeError):
cadc.get_data_urls({'noPublisherID': 'test'})
def test_login_with_user_password(self):
for auth_session in [
None, authsession.AuthSession(),
requests.Session()
]:
cadc = Cadc(auth_session=auth_session)
now = datetime.utcnow()
query = \
"select top 1 * from caom2.Plane where metaRelease>'{}'".\
format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 0
cadc.login(os.environ['CADC_USER'], os.environ['CADC_PASSWD'])
query = "select top 1 * from caom2.Plane where metaRelease>'{}'".\
format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 1
# repeat after logout
cadc.logout()
query = \
"select top 1 * from caom2.Plane where metaRelease>'{}'".\
format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 0
def test_logout(monkeypatch):
dummyTapHandler = DummyTapHandler()
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
tap = Cadc(tap_plus_handler=dummyTapHandler)
# default parameters
parameters = {}
parameters['verbose'] = False
tap.logout(False)
dummyTapHandler.check_call('logout', parameters)
# test with parameters
dummyTapHandler.reset()
parameters['verbose'] = True
tap.logout(True)
dummyTapHandler.check_call('logout', parameters)
def test_get_tables(monkeypatch):
dummyTapHandler = DummyTapHandler()
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
tap = Cadc(tap_plus_handler=dummyTapHandler)
# default parameters
parameters = {}
parameters['only_names'] = False
parameters['verbose'] = False
tap.get_tables()
dummyTapHandler.check_call('get_tables', parameters)
# test with parameters
dummyTapHandler.reset()
parameters = {}
parameters['only_names'] = True
parameters['verbose'] = True
tap.get_tables(True, True)
dummyTapHandler.check_call('get_tables', parameters)
def test_load_async_job(monkeypatch):
dummyTapHandler = DummyTapHandler()
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
tap = Cadc(tap_plus_handler=dummyTapHandler)
jobid = '123'
# default parameters
parameters = {}
parameters['jobid'] = jobid
parameters['verbose'] = False
tap.load_async_job(jobid)
dummyTapHandler.check_call('load_async_job', parameters)
# test with parameters
dummyTapHandler.reset()
parameters['jobid'] = jobid
parameters['verbose'] = True
tap.load_async_job(jobid, verbose=True)
dummyTapHandler.check_call('load_async_job', parameters)
def test_authsession(self):
# repeat previous test
auth_session = requests.Session()
auth_session.cert = os.environ['CADC_CERT']
cadc = Cadc(auth_session=auth_session)
now = datetime.utcnow()
query = "select top 1 * from caom2.Plane where " \
"metaRelease>'{}'".format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 1
annon_session = requests.Session()
cadc = Cadc(auth_session=annon_session)
now = datetime.utcnow()
query = "select top 1 * from caom2.Plane where " \
"metaRelease>'{}'".format(now.strftime('%Y-%m-%dT%H:%M:%S.%f'))
result = cadc.exec_sync(query)
assert len(result) == 0
def test_save_results(monkeypatch):
dummyTapHandler = DummyTapHandler()
monkeypatch.setattr(cadc_core, 'get_access_url', get_access_url_mock)
tap = Cadc(tap_plus_handler=dummyTapHandler)
job = '123'
# default parameters
parameters = {}
parameters['job'] = job
parameters['filename'] = 'file.txt'
parameters['verbose'] = False
tap.save_results(job, 'file.txt')
dummyTapHandler.check_call('save_results', parameters)
# test with parameters
dummyTapHandler.reset()
parameters['job'] = job
parameters['filename'] = 'file.txt'
parameters['verbose'] = True
tap.save_results(job, 'file.txt', verbose=True)
dummyTapHandler.check_call('save_results', parameters)
def test_query_region(self):
cadc = Cadc()
result = cadc.query_region('08h45m07.5s +54d18m00s', collection='CFHT')
# do some manipulation of the results. Below it's filtering out based
# on target name but other manipulations are possible.
assert len(result) > 0
urls = cadc.get_data_urls(result[result['target_name'] == 'Nr3491_1'])
assert len(urls) > 0
# urls are a subset of the results that match target_name==Nr3491_1
assert len(result) >= len(urls)
urls_data_only = len(urls)
# now get the auxilary files too
urls = cadc.get_data_urls(result[result['target_name'] == 'Nr3491_1'],
include_auxiliaries=True)
assert urls_data_only <= len(urls)
# the same result should be obtained by querying the entire region
# and filtering out on the CFHT collection
result2 = cadc.query_region('08h45m07.5s +54d18m00s')
assert len(result) == len(result2[result2['collection'] == 'CFHT'])
# search for a target
results = cadc.query_region(SkyCoord.from_name('M31'))
assert len(results) > 20
