Add tests for auto completion of short options

tests/functional/test_completion.py

@@ -121,6 +121,29 @@ def test_completion_option_for_command(script):
            "autocomplete function could not complete ``--``"
 
 
+def test_completion_short_option(script):
+    """
+    Test getting completion for short options after ``-`` (eg. pip -)
+    """
+
+    res, env = setup_completion(script, 'pip -', '1')
+
+    assert '-h' in res.stdout.split(),\
+           "autocomplete function could not complete short options after ``-``"
+
+
+def test_completion_short_option_for_command(script):
+    """
+    Test getting completion for short options after ``-`` in command
+    (eg. pip search -)
+    """
+
+    res, env = setup_completion(script, 'pip search -', '2')
+
+    assert '-h' in res.stdout.split(),\
+           "autocomplete function could not complete short options after ``-``"
+
+
 @pytest.mark.parametrize('flag', ['--bash', '--zsh', '--fish'])
 def test_completion_uses_same_executable_name(script, flag):
     expect_stderr = sys.version_info[:2] == (3, 3)