def test_query_empty(path):
with chpwd(path), assert_raises(ValueError):
meta_dump()
ds = Dataset(path).create()
res = ds.meta_dump(on_failure='ignore')
assert_result_count(res, 1)
assert_result_count(
res,
1,
status='impossible',
message='metadata aggregation has never been performed '
'in this dataset',
)
def test_aggregate_query(path, randompath):
ds = Dataset(path).create(force=True)
# no magic change to actual dataset metadata due to presence of
# aggregated metadata
res = ds.meta_dump(reporton='datasets', on_failure='ignore')
assert_result_count(res, 0)
# but we can now ask for metadata of stuff that is unknown on disk
res = ds.meta_dump(op.join('sub', 'deep', 'some'), reporton='datasets')
assert_result_count(res, 1)
eq_({'homepage': 'http://top.example.com'}, res[0]['metadata'])
sub = ds.create('sub', force=True)
# when no reference dataset there is NO magic discovery of the relevant
# dataset
with chpwd(randompath):
assert_raises(ValueError,
meta_dump,
op.join(path, 'sub', 'deep', 'some'),
reporton='datasets')
# but inside a dataset things work
with chpwd(ds.path):
res = meta_dump(op.join(path, 'sub', 'deep', 'some'),
reporton='datasets')
assert_result_count(res, 1)
# the metadata in the discovered top dataset is return, not the
# metadata in the subdataset
eq_({'homepage': 'http://top.example.com'}, res[0]['metadata'])
# when a reference dataset is given, it will be used as the metadata
# provider
res = sub.meta_dump(op.join('deep', 'some'), reporton='datasets')
assert_result_count(res, 1)
eq_({'homepage': 'http://sub.example.com'}, res[0]['metadata'])
def test_get_aggregates_fails(path):
with chpwd(path), assert_raises(ValueError):
meta_dump(reporton='aggregates')
ds = Dataset(path).create()
res = ds.meta_dump(reporton='aggregates', on_failure='ignore')
assert_result_count(res, 1, path=ds.path, status='impossible')