Try fixing regex lookup

Adds tests

dpdapi/filters.py

@@ -10,9 +10,14 @@ filters.LOOKUP_TYPES = ['iregex', 'exact', 'iexact']
 class AliasFilter(django_filters.FilterSet):
     # TODO: These do not work
     # Ref: https://docs.djangoproject.com/en/1.7/ref/models/querysets/#iregex
-    source_regex = django_filters.CharFilter(name='source', lookup_expr=['iregex'])
-    destination_regex = django_filters.CharFilter(name='destination', lookup_expr=['iregex'])
+    source_regex = django_filters.CharFilter(name='source')
+    destination_regex = django_filters.CharFilter(name='destination')
 
     class Meta:
         model = Alias
-        fields = ['domain', 'domain__name', 'source_regex', 'destination_regex']
+        fields = {
+            'domain': ['exact'],
+            'domain__name': ['iexact'],
+            'source_regex': ['iregex', 'regex'],
+            'destination_regex': ['iregex', 'regex']
+        }

dpdapi/tests.py

@@ -1,3 +1,30 @@
-from django.test import TestCase
+from django.contrib.auth.models import User
+from django.urls import reverse
+from rest_framework.test import APITestCase
 
-# Create your tests here.
+from dpdapi.models import Domain, Alias
+
+
+class RegexTestCase(APITestCase):
+    aliases = ['ops-alert@example.com', 'yolo-announce@example.com']
+
+    def setUp(self):
+        user = User.objects.create(username='yolo')
+        d = Domain.objects.create(name='example.com')
+        for a in self.aliases:
+            Alias.objects.create(source=a, destination='@example.com', domain=d)
+        self.client.force_login(user)
+
+    def test_get_all(self):
+        res = self.client.get(reverse('alias-list'))
+        self.assertEqual(len(res.data), len(self.aliases))
+
+    def test_domain_filter(self):
+        params = {'domain__name': 'example.com'}
+        res = self.client.get(reverse('alias-list'), data=params)
+        self.assertEqual(len(res.data), len(self.aliases))
+
+    def test_regex_filter(self):
+        params = {'source_regex': '^ops-|^ops@'}
+        res = self.client.get(reverse('alias-list'), data=params)
+        self.assertEqual(len(res.data), 1)