tests: add basic tests for ctl.py

tests/test_ctl.py

@@ -1,5 +1,6 @@
 import os
 import pytest
+import sys
 import collections
 from email.mime.text import MIMEText
 from email.mime.multipart import MIMEMultipart
@@ -423,3 +424,23 @@ def test_runjob(pub):
     assert AfterJob.get(job.id).status == 'registered'
     call_command('runjob', '--domain=example.net', '--job-id=%s' % job.id)
     assert AfterJob.get(job.id).status == 'completed'
+
+
+def test_ctl_print_help(capsys):
+    ctl = wcs.qommon.ctl.Ctl(cmd_prefixes=['wcs.ctl'])
+    with pytest.raises(SystemExit):
+        ctl.print_help()
+    captured = capsys.readouterr()
+    assert 'runscript' in captured.out
+
+
+def test_ctl_no_command(capsys):
+    ctl = wcs.qommon.ctl.Ctl(cmd_prefixes=['wcs.ctl'])
+    old_argv, sys.argv = sys.argv, ['wcsctl']
+    try:
+        with pytest.raises(SystemExit):
+            ctl.run(None)
+        captured = capsys.readouterr()
+        assert 'error: You must use a command' in captured.err
+    finally:
+        sys.argv = old_argv