Write unit tests for CombinedAuthBackend

pinry/users/tests.py

@@ -0,0 +1,47 @@
+from django.test import TestCase
+
+import mock
+
+from .auth.backends import CombinedAuthBackend
+from ..core.models import Image, Pin
+from .models import User
+
+
+def mock_urlopen(url):
+    return open('screenshot.png')
+
+
+class CombinedAuthBackendTest(TestCase):
+    def setUp(self):
+        self.backend = CombinedAuthBackend()
+        self.username = 'jdoe'
+        self.email = 'jdoe@example.com'
+        self.password = 'password'
+        User.objects.create_user(username=self.username, email=self.email, password=self.password)
+
+    def test_authenticate_username(self):
+        self.assertTrue(self.backend.authenticate(username=self.username, password=self.password))
+
+    def test_authenticate_email(self):
+        self.assertTrue(self.backend.authenticate(username=self.email, password=self.password))
+
+    def test_authenticate_wrong_password(self):
+        self.assertIsNone(self.backend.authenticate(username=self.username, password='wrong-password'))
+
+    def test_authenticate_unknown_user(self):
+        self.assertIsNone(self.backend.authenticate(username='wrong-username', password='wrong-password'))
+
+    @mock.patch('urllib2.urlopen', mock_urlopen)
+    def test_has_perm_on_pin(self):
+        image = Image.objects.create_for_url('http://testserver/mocked/screenshot.png')
+        user = User.objects.get(pk=1)
+        pin = Pin.objects.create(submitter=user, image=image)
+        self.assertTrue(self.backend.has_perm(user, 'add_pin', pin))
+
+    @mock.patch('urllib2.urlopen', mock_urlopen)
+    def test_has_perm_on_pin_unauthorized(self):
+        image = Image.objects.create_for_url('http://testserver/mocked/screenshot.png')
+        user = User.objects.get(pk=1)
+        other_user = User.objects.create_user('test', 'test@example.com', 'test')
+        pin = Pin.objects.create(submitter=user, image=image)
+        self.assertFalse(self.backend.has_perm(other_user, 'add_pin', pin))