add first tests, add .coveragerc, ignore coverage files

.gitignore

@@ -38,4 +38,6 @@ tramp
 Thumbs.db
 Desktop.ini
 
+.coverage
 .ropeproject/
+htmlcov/

gnuviechadmin/.coveragerc

@@ -0,0 +1,5 @@
+[run]
+source = gnuviechadmin,managemails
+
+[report]
+omit = */migrations/*,*/tests/*.py,*/tests.py,gnuviechadmin/settings/local.py,gnuviechadmin/settings/production.py

gnuviechadmin/gnuviechadmin/tests.py

@@ -0,0 +1,28 @@
+import os
+from unittest import TestCase
+
+from django.core.exceptions import ImproperlyConfigured
+
+from gnuviechadmin.settings.base import get_env_variable
+
+
+class GetEnvVariableTest(TestCase):
+
+    def test_get_existing_env_variable(self):
+        os.environ['testvariable'] = 'myvalue'
+        self.assertEqual(get_env_variable('testvariable'), 'myvalue')
+
+    def test_get_missing_env_variable(self):
+        if 'missingvariable' in os.environ:
+            del os.environ['missingvariable']
+        with self.assertRaises(ImproperlyConfigured) as e:
+            get_env_variable('missingvariable')
+        self.assertEqual(
+            str(e.exception), 'Set the missingvariable environment variable')
+
+
+class WSGITest(TestCase):
+
+    def test_wsgi_application(self):
+        from gnuviechadmin import wsgi
+        self.assertIsNotNone(wsgi.application)