def test_build_env(clean_pythonpath):
os.environ['PYTHONPATH'] = 'something'
env = launch._build_env('else')
expected = os.pathsep.join(('else', 'something'))
assert env['PYTHONPATH'] == expected
os.environ['PYTHONPATH'] = ''
env = launch._build_env('something')
assert env['PYTHONPATH'] == 'something'
initial = os.pathsep.join(['something', 'else'])
os.environ['PYTHONPATH'] = initial
env = launch._build_env('a')
expected = os.pathsep.join(['a', 'something', 'else'])
assert env['PYTHONPATH'] == expected
def test_build_env(clean_pythonpath):
os.environ['PYTHONPATH'] = 'something'
env = launch._build_env('else')
expected = os.pathsep.join(('else', 'something'))
assert env['PYTHONPATH'] == expected
os.environ['PYTHONPATH'] = ''
env = launch._build_env('something')
assert env['PYTHONPATH'] == 'something'
initial = os.pathsep.join(['something', 'else'])
os.environ['PYTHONPATH'] = initial
env = launch._build_env('a')
expected = os.pathsep.join(['a', 'something', 'else'])
assert env['PYTHONPATH'] == expected
def test_build_env_includes_pth_files(tmpdir, clean_pythonpath):
"""
If during _build_env, there are .pth files in the target directory,
they should be processed to include any paths indicated there.
See #6 for rationale.
"""
(tmpdir / 'foo.pth').write_text('pkg-1.0', encoding='utf-8')
env = launch._build_env(str(tmpdir))
expected = os.pathsep.join([str(tmpdir), str(tmpdir / 'pkg-1.0')])
assert env['PYTHONPATH'] == expected
def test_build_env_includes_pth_files(tmpdir, clean_pythonpath):
"""
If during _build_env, there are .pth files in the target directory,
they should be processed to include any paths indicated there.
See #6 for rationale.
"""
(tmpdir / 'foo.pth').write_text('pkg-1.0', encoding='utf-8')
env = launch._build_env(str(tmpdir))
expected = os.pathsep.join([str(tmpdir), str(tmpdir / 'pkg-1.0')])
assert env['PYTHONPATH'] == expected
