Fixed bug with lost code

During previous conflict-resolving the code, with test of writing `non-writable` options to config was lost.
Here that code with appropriate tests.

couchpotato/core/settings.py

@@ -326,33 +326,43 @@ class Settings(object):
         option = kwargs.get('name')
         value = kwargs.get('value')
 
-        from couchpotato.environment import Env
-        soft_chroot = Env.get('softchroot')
+        if not self.isOptionWritable(section, option):
+            self.log.warning('Option "%s.%s" isn\'t writable', (section, option))
+            return {
+                'success' : False,
+            }
+        else:
         	
-        if self.getType(section, option) == 'directory':
-            value = soft_chroot.chroot2abs(value)
+            from couchpotato.environment import Env
+            soft_chroot = Env.get('softchroot')
 
-        if self.getType(section, option) == 'directories':
-            import json
-            value = json.loads(value)
-            if not (value and isinstance(value, list)):
-                value = []
-            value = map(soft_chroot.chroot2abs, value)
-            value = self.directories_delimiter.join(value)
+            if self.getType(section, option) == 'directory':
+                value = soft_chroot.chroot2abs(value)
 
-        # See if a value handler is attached, use that as value
-        new_value = fireEvent('setting.save.%s.%s' % (section, option), value, single = True)
+            if self.getType(section, option) == 'directories':
+                import json
+                value = json.loads(value)
+                if not (value and isinstance(value, list)):
+                    value = []
+                value = map(soft_chroot.chroot2abs, value)
+                value = self.directories_delimiter.join(value)
 
-        self.set(section, option, (new_value if new_value else value).encode('unicode_escape'))
-        self.save()
+            # See if a value handler is attached, use that as value
+            new_value = fireEvent('setting.save.%s.%s' % (section, option), value, single = True)
 
-        # After save (for re-interval etc)
-        fireEvent('setting.save.%s.%s.after' % (section, option), single = True)
-        fireEvent('setting.save.%s.*.after' % section, single = True)
+            self.set(section, option, (new_value if new_value else value).encode('unicode_escape'))
+            self.save()
 
-        return {
-            'success': True
-        }
+            # After save (for re-interval etc)
+            fireEvent('setting.save.%s.%s.after' % (section, option), single = True)
+            fireEvent('setting.save.%s.*.after' % section, single = True)
+
+            return {
+                'success': True
+            }
+
+        # unreachable code:
+        return None
 
     def isSectionReadable(self, section):
         meta = 'section_hidden' + self.optionMetaSuffix()

couchpotato/core/settings_test.py

@@ -0,0 +1,96 @@
+import mock
+from mock import patch, Mock 
+import unittest
+from unittest import TestCase
+
+from couchpotato.core.settings import Settings
+
+class DoNotUseMe:
+    """ Do not use this class, it is just for storing Mock ' s of Settings-class
+
+    Usage:
+        Select appropriate Mocks and copy-paste them to your test-method
+    """
+    def __do_not_call(self):
+        # s = Settings
+        s = Mock()
+
+        # methods:
+        s.isOptionWritable = Mock(return_value=True)
+        s.set = Mock(return_value=None)
+        s.save = Mock()
+
+        # props:
+        s.log = Mock()
+       
+class SettingsSaveWritableNonWritable(TestCase):
+    def setUp(self):
+        self.s = Settings()
+
+    def test_save_writable(self):
+        s = self.s
+
+        # set up Settings-mocks :
+        # lets assume, that option is writable:
+        mock_isOptionWritable = s.isOptionWritable = Mock(return_value=True)
+        mock_set = s.set = Mock(return_value=None)
+        mock_p_save = s.save = Mock()
+
+        section = 'core'
+        option = 'option_non_exist_be_sure'
+        value = "1000"
+        params = { 'section' : section, 'name' : option, 'value' : value }
+ 
+        # call method:
+        env_mock = Mock()
+
+        # HERE is an example of mocking LOCAL 'import'
+        with patch.dict('sys.modules', {'couchpotato.environment.Env': env_mock}):
+            result = s.saveView(**params)
+
+        self.assertIsInstance(s, Settings)
+        self.assertIsInstance(result, dict)
+        self.assertTrue(result['success'])
+
+        # -----------------------------------------
+        # check mock
+        # -----------------------------------------
+        mock_isOptionWritable.assert_called_with(section, option)
+
+        # check, that Settings tried to save my value:
+        mock_set.assert_called_with(section, option, value)
+
+
+    def test_save_non_writable(self):
+        s = self.s
+
+        # set up Settings-mocks :
+        # lets assume, that option is not writable:
+        mock_is_w = s.isOptionWritable = Mock(return_value=False)
+        mock_set = s.set = Mock(return_value=None)
+        mock_p_save = s.save = Mock()
+        mock_log_s = s.log = Mock()
+
+        section = 'core'
+        option = 'option_non_exist_be_sure'
+        value = "1000"
+        params = { 'section' : section, 'name' : option, 'value' : value }
+ 
+        # call method:
+        env_mock = Mock()
+
+        # HERE is an example of mocking LOCAL 'import'
+        with patch.dict('sys.modules', {'couchpotato.environment.Env': env_mock}):
+            result = s.saveView(**params)
+
+
+        self.assertIsInstance(s, Settings)
+        self.assertIsInstance(result, dict)
+        self.assertFalse(result['success'])
+
+        # -----------------------------------------
+        # check mock
+        # -----------------------------------------
+        # lets check, that 'set'-method was not called:
+        self.assertFalse(mock_set.called, 'Method `set` was called')
+        mock_is_w.assert_called_with(section, option)

couchpotato/core/softchroot_test.py

@@ -3,7 +3,6 @@ import os
 import logging
 import unittest
 from unittest import TestCase
-#from mock import MagicMock
 
 from couchpotato.core.softchroot import SoftChroot