1import pytest
2import os
3
4
5def installed():
6    for env in ['VASP_COMMAND', 'VASP_SCRIPT']:
7        if os.getenv(env):
8            break
9    else:
10        pytest.skip('Neither VASP_COMMAND nor VASP_SCRIPT defined')
11    return True
12
13
14def installed2():
15    # Check if env variables exist for Vasp2
16
17    for env in ['VASP_COMMAND', 'VASP_SCRIPT', 'ASE_VASP_COMMAND']:
18        if os.getenv(env):
19            break
20    else:
21        pytest.skip('Neither ASE_VASP_COMMAND, VASP_COMMAND nor '
22                    'VASP_SCRIPT defined')
23
24    return True
25