update accounts/tests/test_edit_profile_view.py add function

test_edit_profile_view_email_already_exists

accounts/tests/test_edit_profile_view.py

@@ -11,6 +11,26 @@ class EditProfileViewTestCase(TestCase):
         user_a.set_password('password123456donkey')
         user_a.save()
         Account.objects.create(user=user_a)
+        User.objects.create(username='user_c', email='user_c@example.com')
+
+    def test_edit_profile_view_email_already_exists(self):
+        self.client.login(username='user_a', password='password123456donkey')
+        response = self.client.post(reverse('accounts:edit_profile'), {
+            'email': 'user_c@example.com',
+            'first_name': 'User_a',
+            'last_name': 'Smith',
+            'twitter_handle': '@user_a',
+            'password': 'password123456donkey',
+        }, follow=True)
+        self.assertEquals(response.status_code, 200)
+        self.assertTemplateUsed(response, 'base_form.html')
+        user_a = User.objects.get(username='user_a')
+        self.assertEquals(user_a.email, 'user_a@example.com')
+        self.assertEquals(user_a.first_name, '')
+        self.assertEquals(user_a.account.twitter_handle, '@Twitter')
+        self.assertEquals(response.request['PATH_INFO'], '/accounts/edit-profile/')
+        msg = "An account already exists with this email address."
+        self.assertEquals(response.content.decode('utf-8').count(msg), 1)
 
     def test_edit_profile_view_no_login(self):
         response = self.client.post(reverse('accounts:edit_profile'), {