def test__make_ids(self):
"""Test whether regex is correctly generating expressions."""
metadata = {'subtype': 'string', 'regex': '[a-d]'}
keys = Table._make_ids(metadata, 3)
assert (keys == pd.Series(['a', 'b', 'c'])).all()
def test__make_ids_fail(self):
"""Test if regex fails with more requested ids than available unique values."""
metadata = {'subtype': 'string', 'regex': '[a-d]'}
with pytest.raises(ValueError):
Table._make_ids(metadata, 20)
