Add aux tests

ivatar/test_auxiliary.py

@@ -0,0 +1,46 @@
+'''
+Test various other parts of ivatar/libravatar in order
+to increase the overall test coverage. Test in here, didn't
+fit anywhere else.
+'''
+
+from django.test import TestCase
+from django.contrib.auth.models import User
+
+from ivatar.utils import random_string
+from ivatar.ivataraccount.models import pil_format, UserPreference
+
+
+class Tester(TestCase):
+    '''
+    Main test class
+    '''
+    user = None
+    username = random_string()
+
+    def setUp(self):
+        '''
+        Prepare tests.
+        - Create user
+        '''
+        self.user = User.objects.create_user(
+            username=self.username,
+        )
+
+    def test_pil_format(self):
+        '''
+        Test pil format function
+        '''
+        self.assertEqual(pil_format('jpg'), 'JPEG')
+        self.assertEqual(pil_format('jpeg'), 'JPEG')
+        self.assertEqual(pil_format('png'), 'PNG')
+        self.assertEqual(pil_format('gif'), 'GIF')
+        self.assertEqual(pil_format('abc'), None)
+
+    def test_userprefs_str(self):
+        '''
+        Test if str representation of UserPreferences is as expected
+        '''
+        up = UserPreference(theme='default', user=self.user)
+        print(up)
+