diff --git a/colab/utils/tests/test_conf.py b/colab/utils/tests/test_conf.py
index 076e908..5be61e0 100644
--- a/colab/utils/tests/test_conf.py
+++ b/colab/utils/tests/test_conf.py
@@ -2,7 +2,11 @@
 from django.test import TestCase, override_settings
 from django.conf import settings
 
-from ..conf import DatabaseUndefined, validate_database
+from ..conf import (DatabaseUndefined, validate_database,
+                    InaccessibleSettings, _load_py_file, load_py_settings,
+                    load_colab_apps, load_widgets_settings)
+
+from mock import patch
 
 
 class TestConf(TestCase):
@@ -16,3 +20,74 @@ class TestConf(TestCase):
         with self.assertRaises(DatabaseUndefined):
             validate_database(settings.DATABASES, settings.DEFAULT_DATABASE,
                               settings.DEBUG)
+
+    def test_load_py_file_with_io_error(self):
+        self.assertRaises(InaccessibleSettings,
+                          _load_py_file, 'settings_test', '/etc/colab/')
+
+    @patch('importlib.import_module', side_effect=SyntaxError)
+    def test_load_py_file_with_syntax_error(self, mock):
+        self.assertRaises(InaccessibleSettings,
+                          _load_py_file, 'settings_test', '/etc/colab/')
+
+    def test_load_py_file(self):
+        py_settings = _load_py_file('colab_settings', './tests/')
+
+        self.assertIn('SOCIAL_NETWORK_ENABLED', py_settings)
+        self.assertTrue(py_settings['SOCIAL_NETWORK_ENABLED'])
+
+        self.assertIn('EMAIL_PORT', py_settings)
+        self.assertEquals(py_settings['EMAIL_PORT'], 25)
+
+    @patch('os.getenv', return_value='/path/fake/settings.py')
+    def test_load_py_settings_with_inaccessible_settings(self, mock):
+        self.assertRaises(InaccessibleSettings, load_py_settings)
+
+    @patch('os.path.exists', side_effect=[True, False])
+    def test_load_py_settings_without_settings_d(self, mock):
+        py_settings = load_py_settings()
+
+        self.assertIn('SOCIAL_NETWORK_ENABLED', py_settings)
+        self.assertTrue(py_settings['SOCIAL_NETWORK_ENABLED'])
+
+        self.assertIn('EMAIL_PORT', py_settings)
+        self.assertEquals(py_settings['EMAIL_PORT'], 25)
+
+    @patch('os.listdir', return_value=['./tests/settings.d/test.py',
+                                       'non_python_file'])
+    @patch('colab.utils.conf._load_py_file',
+           side_effect=[{'SOCIAL_NETWORK_ENABLED': True, 'EMAIL_PORT': 25},
+                        {'TEST':'test'}])
+    def test_load_py_settings_with_settings_d(self, mock_py, mock_listdir):
+        py_settings = load_py_settings()
+
+        self.assertIn('SOCIAL_NETWORK_ENABLED', py_settings)
+        self.assertTrue(py_settings['SOCIAL_NETWORK_ENABLED'])
+
+        self.assertIn('EMAIL_PORT', py_settings)
+        self.assertEquals(py_settings['EMAIL_PORT'], 25)
+
+        self.assertIn('TEST', py_settings)
+        self.assertEquals(py_settings['TEST'], 'test')
+
+    @patch('os.getenv', return_value='/path/fake/plugins.d/')
+    def test_load_colab_apps_without_plugins_d_directory(self, mock):
+        colab_apps = load_colab_apps()
+        self.assertIn('COLAB_APPS', colab_apps)
+        self.assertEquals(colab_apps['COLAB_APPS'], {})
+
+    @patch('os.getenv', return_value='./tests/plugins.d/')
+    def test_load_colab_apps_with_plugins_d_directory(self, mock):
+        colab_apps = load_colab_apps()
+
+        self.assertIn('colab_gitlab', colab_apps['COLAB_APPS'])
+        self.assertIn('colab_noosfero', colab_apps['COLAB_APPS'])
+
+    @patch('os.getenv', return_value='/path/fake/widgets_settings.py')
+    def test_load_widgets_settings_without_settings(self, mock):
+       self.assertIsNone(load_widgets_settings())
+
+    @patch('os.getenv', side_effect=['./tests/colab_settings.py',
+                                     '/path/fake/widgets_settings.py'])
+    def test_load_widgets_settings_without_settings(self, mock):
+       self.assertIsNone(load_widgets_settings())
diff --git a/tests/plugins.d/gitlab.py b/tests/plugins.d/gitlab.py
new file mode 100644
index 0000000..0bf6ed1
--- /dev/null
+++ b/tests/plugins.d/gitlab.py
@@ -0,0 +1,17 @@
+from django.utils.translation import ugettext_lazy as _
+from colab.plugins.utils.menu import colab_url_factory
+
+name = "colab_gitlab"
+verbose_name = "Gitlab"
+
+upstream = 'https://localhost/gitlab/'
+private_token = 'AVA8vrohDpoSws41zd1w'
+
+urls = {
+         "include":"colab_gitlab.urls",
+         "prefix": 'gitlab/',
+         "namespace":"gitlab"
+       }
+
+url = colab_url_factory('gitlab')
+
diff --git a/tests/plugins.d/noosfero.py b/tests/plugins.d/noosfero.py
new file mode 100644
index 0000000..e752cf1
--- /dev/null
+++ b/tests/plugins.d/noosfero.py
@@ -0,0 +1,17 @@
+from django.utils.translation import ugettext_lazy as _
+from colab.plugins.utils.menu import colab_url_factory
+
+name = "colab_noosfero"
+verbose_name = "Noosfero"
+private_token = "ef9a334177c620b68e75a89844e8a402"
+
+upstream = 'http://localhost/social/'
+
+urls = {
+         "include":"colab_noosfero.urls",
+         "prefix": '^social/',
+         "namespace":"social"
+       }
+
+url = colab_url_factory('social')
+
diff --git a/tests/plugins.d/plugin_test b/tests/plugins.d/plugin_test
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/plugins.d/plugin_test
diff --git a/tests/plugins.d/spb.py b/tests/plugins.d/spb.py
new file mode 100644
index 0000000..a49e7bc
--- /dev/null
+++ b/tests/plugins.d/spb.py
@@ -0,0 +1,12 @@
+from django.utils.translation import ugettext_lazy
+from colab.plugins.utils.menu import colab_url_factory
+
+
+verbose_name = "SPB Plugin"
+urls = {
+         "include":"colab_spb.urls",
+         "prefix": '^spb/',
+         "namespace":"colab_spb"
+       }
+
+url = colab_url_factory('colab_spb')
diff --git a/tests/settings.d/test.py b/tests/settings.d/test.py
new file mode 100644
index 0000000..00ba103
--- /dev/null
+++ b/tests/settings.d/test.py
@@ -0,0 +1,2 @@
+RIBBON_ENABLED=False
+TEST='test'
--
libgit2 0.21.2