keyring/tests: mock the time to have a stable output over time.

Thanks to enrico for the patch

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

keyring/tests/test_backend.py

@@ -140,7 +140,8 @@ class TestKeycheck(TestCase):
         test_fpr = "1793D6AB75663E6BF104953A634F4BD1E7AD5568"
         kmodels.Key.objects.test_preload(test_fpr)
         c = Client()
-        response = c.get(reverse("keyring_keycheck", kwargs={"fpr": test_fpr}))
+        with mock.patch("time.time", return_value=1590962400):
+            response = c.get(reverse("keyring_keycheck", kwargs={"fpr": test_fpr}))
         self.assertEqual(response.status_code, 200)
         decoded = response.json()
         self.assertEqual(decoded["fpr"], test_fpr)