Add --version and --help as yadm internal commands (#267)

test/test_help.py

@@ -1,4 +1,5 @@
 """Test help"""
+import pytest
 
 
 def test_missing_command(runner, yadm_cmd):
@@ -9,9 +10,10 @@ def test_missing_command(runner, yadm_cmd):
     assert run.out.startswith('Usage: yadm')
 
 
-def test_help_command(runner, yadm_cmd):
+@pytest.mark.parametrize('cmd', ['--help', 'help'])
+def test_help_command(runner, yadm_cmd, cmd):
     """Run with help command"""
-    run = runner(command=yadm_cmd('help'))
+    run = runner(command=yadm_cmd(cmd))
     assert run.failure
     assert run.err == ''
     assert run.out.startswith('Usage: yadm')

test/test_hooks.py

@@ -21,8 +21,9 @@ import pytest
         'pre-post-success',
         'pre-post-fail',
     ])
+@pytest.mark.parametrize('cmd', ['--version', 'version'])
 def test_hooks(
-        runner, yadm_cmd, paths,
+        runner, yadm_cmd, paths, cmd,
         pre, pre_code, post, post_code):
     """Test pre/post hook"""
 
@@ -33,7 +34,7 @@ def test_hooks(
         create_hook(paths, 'post_version', post_code)
 
     # run yadm
-    run = runner(yadm_cmd('version'))
+    run = runner(yadm_cmd(cmd))
     # when a pre hook fails, yadm should exit with the hook's code
     assert run.code == pre_code
     assert run.err == ''

test/test_version.py

@@ -26,10 +26,11 @@ def test_semantic_version(expected_version):
         'does not conform to MAJOR.MINOR.PATCH')
 
 
+@pytest.mark.parametrize('cmd', ['--version', 'version'])
 def test_reported_version(
-        runner, yadm_cmd, expected_version):
+        runner, yadm_cmd, cmd, expected_version):
     """Report correct version"""
-    run = runner(command=yadm_cmd('version'))
+    run = runner(command=yadm_cmd(cmd))
     assert run.success
     assert run.err == ''
     assert run.out == f'yadm {expected_version}\n'