def test_from_string():
"""Test reading from string."""
test_str = 'TRUE = .True\nFALSE=.f.'
incar_io = IncarIo()
incar_io.read_string(test_str)
incar_dict = incar_io.get_dict()
assert incar_dict.pop('true') is True
assert incar_dict.pop('false') is False
assert not incar_dict
def test_read_incar():
"""Read an INCAR file and test that some of the keys are read correctly."""
incar_path = data_path('phonondb', 'INCAR')
incar_io = IncarIo(file_path=incar_path)
incar_dict = incar_io.get_dict()
assert incar_dict['prec'] == 'Accurate'
assert incar_dict['ibrion'] == -1
assert incar_dict['encut'] == 359.7399
assert incar_dict['lreal'] is False
def test_example_incar():
"""Read a pathological case of an INCAR file (top level example from VASP docs)."""
incar_path = data_path('incar_set', 'INCAR.copper_srf')
incar_io = IncarIo(file_path=incar_path)
incar_dict = incar_io.get_dict()
assert incar_dict['system'] == 'Copper surface calculation'
assert incar_dict['istart'] == 0
assert isinstance(incar_dict['istart'], int)
assert incar_dict['encut'] == 200.01
assert isinstance(incar_dict['encut'], float)
assert incar_dict['bmix'] == 2.0
assert isinstance(incar_dict['bmix'], float)
assert incar_dict['nelmin'] == 0
assert incar_dict['nelmdl'] == 3