[tests] Speed up tests

vrobbler/settings-testing.py

@@ -1 +1,21 @@
 from vrobbler.settings import *
+
+TESTING = True
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": "/tmp/testdb.sqlite3",
+    }
+}
+
+CACHES = {
+    "default": {
+        "BACKEND": "django.core.cache.backends.locmem.LocMemCache",
+        "LOCATION": "unique-snowflake",
+    }
+}
+
+PASSWORD_HASHERS = [
+    "django.contrib.auth.hashers.MD5PasswordHasher",
+]