diff --git a/hc/accounts/tests.py b/hc/accounts/tests.py
deleted file mode 100644
index 7ce503c2..00000000
--- a/hc/accounts/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/hc/accounts/tests/__init__.py b/hc/accounts/tests/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/hc/accounts/tests/test_check_token.py b/hc/accounts/tests/test_check_token.py
new file mode 100644
index 00000000..6084e65f
--- /dev/null
+++ b/hc/accounts/tests/test_check_token.py
@@ -0,0 +1,17 @@
+from django.contrib.auth.models import User
+from django.test import TestCase
+
+
+class CheckTokenTestCase(TestCase):
+
+    def test_it_redirects(self):
+        alice = User(username="alice")
+        alice.set_password("secret-token")
+        alice.save()
+
+        r = self.client.get("/accounts/check_token/alice/secret-token/")
+        assert r.status_code == 302
+
+        # After login, password should be unusable
+        alice_again = User.objects.get(username="alice")
+        assert not alice_again.has_usable_password()
diff --git a/hc/accounts/tests/test_login.py b/hc/accounts/tests/test_login.py
new file mode 100644
index 00000000..40e335c3
--- /dev/null
+++ b/hc/accounts/tests/test_login.py
@@ -0,0 +1,32 @@
+from django.contrib.auth.models import User
+from django.core import mail
+from django.test import TestCase
+
+from hc.api.models import Check
+
+
+class LoginTestCase(TestCase):
+
+    def test_it_sends_link(self):
+        check = Check()
+        check.save()
+
+        session = self.client.session
+        session["welcome_code"] = str(check.code)
+        session.save()
+
+        form = {"email": "alice@example.org"}
+
+        r = self.client.post("/accounts/login/", form)
+        assert r.status_code == 302
+
+        # An user should have been created
+        self.assertEqual(User.objects.count(), 1)
+
+        # And email sent
+        self.assertEqual(len(mail.outbox), 1)
+        self.assertEqual(mail.outbox[0].subject, 'Log in to healthchecks.io')
+
+        # And check should be associated with the new user
+        check_again = Check.objects.get(code=check.code)
+        assert check_again.user