def test_unkown_fromat_error():
with pytest.raises(IOError):
ff = vermouth.forcefield.ForceField(name='test_ff')
test_path = Path("random_file.extension")
MetaMolecule.from_sequence_file(force_field=ff,
file_path=test_path,
mol_name="test")
def test_from_seq_file(file_name, edges, nodes, attrs):
ff = vermouth.forcefield.ForceField(name='test_ff')
name = "test"
meta_mol = MetaMolecule.from_sequence_file(ff, Path(file_name), name)
assert len(nx.get_node_attributes(meta_mol, "resid")) == len(nodes)
assert set(meta_mol.nodes) == set(nodes)
assert set(meta_mol.edges) == set(edges)