def test_version(mocked_exit):
mocked_stdout = io.StringIO()
with mock.patch.object(sys, "stdout", new=mocked_stdout):
cli.parse_args(["-v"])
assert mocked_stdout.getvalue().strip() == f"m2cgen {__version__}"
def test_language_is_required(mocked_exit):
mocked_stderr = io.StringIO()
with mock.patch.object(sys, "stderr", new=mocked_stderr):
cli.parse_args([])
assert ("the following arguments are required: --language"
in mocked_stderr.getvalue())
mocked_exit.assert_called_with(2)
def test_file_as_input(tmp_path):
f = tmp_path / "hello.txt"
f.write_text("123")
input_args = ["-l", "python", str(f)]
args = cli.parse_args(input_args)
assert args.language == "python"
assert isinstance(args.infile, io.BufferedReader)
assert args.infile.name == str(f)
def test_stdin_as_input(request):
input_args = ["--language", "python"]
args = cli.parse_args(input_args)
assert args.language == "python"
# Since pytest by default captures stdin, but sometimes we need to disable
# it (primarily for using (i)pdb), we have 2 different strategies to verify
# that stdin was returned as infile.
capturemanager = request.config.pluginmanager.getplugin("capturemanager")
if capturemanager.is_globally_capturing():
assert isinstance(args.infile, capture.DontReadFromInput)
else:
assert args.infile.name == "<stdin>"
