run: make args an required argument

Author: blueyed

covimerage/cli.py

@@ -59,7 +59,7 @@ def write_coverage(profile_file, data_file, source):
     # ignore_unknown_options=True,
     allow_interspersed_args=False,
 ))
-@click.argument('args', nargs=-1, type=click.UNPROCESSED)
+@click.argument('args', nargs=-1, required=True, type=click.UNPROCESSED)
 @click.option('--wrap-profile/--no-wrap-profile', required=False,
               default=True, show_default=True,
               help='Wrap VIM cmd with options to create a PROFILE_FILE.')

tests/test_cli.py

@@ -711,3 +711,9 @@ def test_run_report_without_data(tmpdir, runner, devnull):
         'Parsing profile file %s.' % devnull.name,
         'Error: No data to report.']
     assert result.exit_code == 1
+
+
+def test_run_cmd_requires_args(runner):
+    result = runner.invoke(cli.run, [])
+    assert 'Error: Missing argument "args".' in result.output.splitlines()
+    assert result.exit_code == 2