Add test case for desired behavior of options overriding values from config files.

1 files changed, 17 insertions, 0 deletions

diff --git a/cliapp/settings_tests.py b/cliapp/settings_tests.py
index b0e87fe..7201961 100644
--- a/cliapp/settings_tests.py
+++ b/cliapp/settings_tests.py
@@ -284,6 +284,23 @@ bar = ping, pong
         self.assertEqual(self.settings['foo'], 'yeehaa')
         self.assertEqual(self.settings['bar'], ['ping', 'pong'])
 
+    def test_handles_values_from_config_files_overridden_on_command_line(self):
+    
+        def mock_open(filename, mode=None):
+            return StringIO.StringIO('''\
+[config]
+foo = yeehaa
+bar = ping, pong
+''')
+    
+        self.settings.string(['foo'], 'foo help', default='foo')
+        self.settings.string_list(['bar'], 'bar help', default=['bar'])
+        self.settings.config_files = ['whatever.conf']
+        self.settings.load_configs(open=mock_open)
+        self.settings.parse_args(['--foo=red', '--bar=blue', '--bar=white'])
+        self.assertEqual(self.settings['foo'], 'red')
+        self.assertEqual(self.settings['bar'], ['blue', 'white'])
+
     def test_load_configs_ignore_errors_opening_a_file(self):
         
         def mock_open(filename, mode=None):