diff --git a/eox_nelp/settings/common.py b/eox_nelp/settings/common.py
index d063a839..eedf2e05 100644
--- a/eox_nelp/settings/common.py
+++ b/eox_nelp/settings/common.py
@@ -15,7 +15,6 @@
 
 COURSE_CREATOR_APP = 'cms.djangoapps.course_creators'
 
-
 def plugin_settings(settings):
     """
     Defines eox-nelp settings when app is used as a plugin to edx-platform.
@@ -33,5 +32,5 @@ def plugin_settings(settings):
     settings.FUTUREX_API_CLIENT_ID = 'my-test-client-id'
     settings.FUTUREX_API_CLIENT_SECRET = 'my-test-client-secret'
 
-    if COURSE_CREATOR_APP not in settings.INSTALLED_APPS:
+    if hasattr(settings, "INSTALLED_APPS") and COURSE_CREATOR_APP not in settings.INSTALLED_APPS:
         settings.INSTALLED_APPS.append(COURSE_CREATOR_APP)
diff --git a/eox_nelp/settings/tests/__init__.py b/eox_nelp/settings/tests/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/eox_nelp/settings/tests/test_common_plugin_settings.py b/eox_nelp/settings/tests/test_common_plugin_settings.py
new file mode 100644
index 00000000..59fede56
--- /dev/null
+++ b/eox_nelp/settings/tests/test_common_plugin_settings.py
@@ -0,0 +1,58 @@
+"""This file contains test for the `plugin_settings` method of
+common setting of eox-nelp.
+
+Classes:
+    CommonPluginSettingsTestCase: Test `plugin_settings` method.
+
+"""
+import unittest
+
+from eox_nelp.settings.common import COURSE_CREATOR_APP, plugin_settings
+
+
+class SettingsClass:
+    """ dummy settings class """
+
+
+class CommonPluginSettingsTestCase(unittest.TestCase):
+    """Test class for function `plugin_settings`"""
+
+    def test_base_common_plugin_settings(self):
+        """Test when `plugin_settings` is called
+        with the required parameters. Check the functions inside are called with
+        their desired values.
+
+        Expected behavior:
+            - Eox-nelp setting items are presented.
+        """
+        common_settings = SettingsClass()
+        eox_nelp_config = {
+            "EOX_NELP_COURSE_CREATORS_BACKEND": "eox_nelp.edxapp_wrapper.backends.course_creators_k_v1",
+            "EOX_NELP_COURSE_OVERVIEWS_BACKEND": "eox_nelp.edxapp_wrapper.backends.course_overviews_m_v1",
+            "EOX_NELP_SITE_CONFIGURATION": "eox_nelp.edxapp_wrapper.backends.site_configuration_m_v1",
+            "EOX_NELP_USER_API": "eox_nelp.edxapp_wrapper.backends.user_api_m_v1",
+            "EOX_NELP_USER_AUTHN": "eox_nelp.edxapp_wrapper.backends.user_authn_m_v1",
+            "EOX_NELP_MFE_CONFIG_VIEW": "eox_nelp.edxapp_wrapper.backends.mfe_config_view_m_v1",
+            "EOX_NELP_COURSE_API": "eox_nelp.edxapp_wrapper.backends.course_api_m_v1",
+            "FUTUREX_API_URL": "https://testing-site.com",
+            "FUTUREX_API_CLIENT_ID": "my-test-client-id",
+            "FUTUREX_API_CLIENT_SECRET": "my-test-client-secret",
+        }
+
+        plugin_settings(common_settings)
+
+        assert eox_nelp_config.items() <= common_settings.__dict__.items()
+
+    def test_append_course_creator_app(self):
+        """Test when `plugin_settings` is called
+        append the course_creator apps in INSTALLED APPS.
+
+        Expected behavior:
+            - Course creator app is presentend in INSTALLED_APPS.
+        """
+        common_settings = SettingsClass()
+        setattr(common_settings, "INSTALLED_APPS", [])
+
+        plugin_settings(common_settings)
+
+        self.assertIn(COURSE_CREATOR_APP, getattr(common_settings, "INSTALLED_APPS"))