Use SimpleTestCase for unit tests

tests/videodinges/unit/__init__.py

@@ -1,4 +1,6 @@
 """
 	Module for storing 'real' _unit_ tests.
 	Meaning, they should test single small units e.g. methods or functions in an isolated way.
+
+	Try to use django.test.SimpleTestCase to prevent unnecessary database setup and improve speed.
 """

tests/videodinges/unit/models/test_get_quality_by_name.py

@@ -1,7 +1,7 @@
-from django.test import TestCase
+from django.test import SimpleTestCase
 from videodinges.models import get_quality_by_name
 
-class GetQualityByNameTestCase(TestCase):
+class GetQualityByNameTestCase(SimpleTestCase):
 
 	def test_returns_quality_if_listed(self):
 		result = get_quality_by_name('480p')

tests/videodinges/unit/models/test_get_short_name_of_transcoding_type.py

@@ -1,7 +1,7 @@
-from django.test import TestCase
+from django.test import SimpleTestCase
 from videodinges.models import TranscodingType, get_short_name_of_transcoding_type
 
-class GetShortNameOfTranscodingTypeTestCase(TestCase):
+class GetShortNameOfTranscodingTypeTestCase(SimpleTestCase):
 
 	def test_gets_transcoding_by_name(self):
 		result = get_short_name_of_transcoding_type('video/webm; codecs="vp8, vorbis"')