def test_help_displayed(args: List[str], capsys: CaptureFixture):
try: # -h raises it, no args doesn’t. Maybe not ideal but meh.
main(args)
except SystemExit as se:
assert se.code == 0
captured = capsys.readouterr()
assert captured.out.startswith('usage: ')
def test_help_output(set_path: type(None), capsys: CaptureFixture):
with pytest.raises(SystemExit, match='^0$'):
main(['-h'])
captured = capsys.readouterr()
assert re.search(
r'^positional arguments:\n\s+\{settings,[\w,-]*testbin[\w,-]*\}$',
captured.out,
re.MULTILINE,
)
def test_external(set_path: type(None)):
# We need to capture the output manually, since subprocesses don’t write to sys.stderr
cmd = main(['testbin', '-t', '--testarg', 'testpos'],
stdout=PIPE,
encoding='utf-8',
check=True)
assert cmd.stdout == 'test -t --testarg testpos\n'
def test_error_wrong_command(capsys: CaptureFixture):
with pytest.raises(SystemExit, match='^2$'):
main(['idonotexist--'])
captured = capsys.readouterr()
assert 'No command “idonotexist--”. Choose from' in captured.err
def test_builtin_settings(capsys: CaptureFixture):
main(['settings'])
captured = capsys.readouterr()
assert captured.out == f'{scanpy.settings}\n'