def test_vasp_writer_idempotence(name):
"""Test that conversion to VASP of a structure loaded from VASP is idempotent."""
# Testing on all built-in structure assures us that corner cases
# are taken care of.
cryst = Crystal.from_database(name)
with tempfile.TemporaryDirectory() as temp_dir:
f = Path(temp_dir) / "temp.POSCAR"
cryst.to_poscar(f)
cryst2 = Crystal.from_poscar(f)
assert cryst == cryst2
def test_pwscf_lattice_vectors_alat(poscar):
"""Test POSCAR parser against CIF parser"""
c0 = Crystal.from_cif(Path(__file__).parent / "data" / "issue5_MgSiO3.cif")
c1 = Crystal.from_poscar(Path(__file__).parent / "data" / poscar)
assert c0 == c1
