diff --git a/tests/core/test_config.py b/tests/core/test_config.py
index 1b35ab8..161796f 100644
--- a/tests/core/test_config.py
+++ b/tests/core/test_config.py
@@ -1,3 +1,4 @@
+import os
 import unittest
 
 import core.config
@@ -8,6 +9,7 @@ class config(unittest.TestCase):
         self.moreModules = [ 'this', 'module', 'here' ]
         self.someTheme = 'some-theme'
         self.someIconset = 'some-iconset'
+        self.defaultConfig = core.config.Config([])
 
     def test_module(self):
         cfg = core.config.Config([ '-m' ] + self.someModules)
@@ -18,8 +20,7 @@ class config(unittest.TestCase):
         self.assertEqual(self.someModules + self.moreModules, cfg.modules())
 
     def test_default_interval(self):
-        cfg = core.config.Config([])
-        self.assertEqual(1, cfg.interval())
+        self.assertEqual(1, self.defaultConfig.interval())
 
     def test_interval(self):
         cfg = core.config.Config([ '-p', 'interval=4'])
@@ -30,19 +31,46 @@ class config(unittest.TestCase):
         self.assertEqual(0.5, cfg.interval())
 
     def test_default_theme(self):
-        cfg = core.config.Config([])
-        self.assertEqual('default', cfg.theme())
+        self.assertEqual('default', self.defaultConfig.theme())
 
     def test_theme(self):
         cfg = core.config.Config(['-t', self.someTheme])
         self.assertEqual(self.someTheme, cfg.theme())
 
     def test_default_iconset(self):
-        cfg = core.config.Config([])
-        self.assertEqual('auto', cfg.iconset())
+        self.assertEqual('auto', self.defaultConfig.iconset())
 
     def test_iconset(self):
         cfg = core.config.Config(['-i', self.someIconset])
         self.assertEqual(self.someIconset, cfg.iconset())
 
+    def test_right_to_left(self):
+        cfg = core.config.Config(['-r'])
+        self.assertTrue(cfg.reverse())
+        self.assertFalse(self.defaultConfig.reverse())
+
+    def test_logfile(self):
+        cfg = core.config.Config(['-f', 'my-custom-logfile'])
+        self.assertEquals(None, self.defaultConfig.logfile())
+        self.assertEquals('my-custom-logfile', cfg.logfile())
+
+    def test_all_modules(self):
+        modules = core.config.all_modules()
+        self.assertGreater(len(modules), 0)
+        for module in modules:
+            pyname = '{}.py'.format(module)
+            base = os.path.abspath(os.path.join(os.path.dirname(os.path.realpath(__file__)), '..', '..', 'modules'))
+            self.assertTrue(os.path.exists(os.path.join(base, 'contrib', pyname)) or os.path.exists(os.path.join(base, 'core', pyname)))
+
+    def test_list_output(self):
+        with unittest.mock.patch('core.config.sys') as sys:
+            cfg = core.config.Config([ '-l', 'themes' ])
+            cfg = core.config.Config([ '-l', 'modules' ])
+            cfg = core.config.Config([ '-l', 'modules-markdown' ])
+            # TODO: think of some plausibility testing here
+
+    def test_missing_parameter(self):
+        cfg = core.config.Config([ '-p', 'test.key' ])
+        self.assertEqual('no-value-set', cfg.get('test.key', 'no-value-set'))
+
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