Fixed #21549 -- Made loaddata's 'fixture not found' warning an exception.

Thanks to mpasternak for the report and Tim Graham for the review.

1 files changed, 2 insertions, 6 deletions

diff --git a/tests/fixtures_model_package/tests.py b/tests/fixtures_model_package/tests.py
index ef5adb3de8..6b508a1991 100644
--- a/tests/fixtures_model_package/tests.py
+++ b/tests/fixtures_model_package/tests.py
@@ -1,8 +1,7 @@
 from __future__ import unicode_literals
 
-import warnings
-
 from django.core import management
+from django.core.management import CommandError
 from django.test import TestCase
 
 from .models import Article
@@ -51,11 +50,8 @@ class FixtureTestCase(TestCase):
         )
 
         # Load a fixture that doesn't exist
-        with warnings.catch_warnings(record=True) as w:
-            warnings.simplefilter("always")
+        with self.assertRaisesMessage(CommandError, "No fixture named 'unknown' found."):
             management.call_command("loaddata", "unknown.json", verbosity=0)
-        self.assertEqual(len(w), 1)
-        self.assertTrue(w[0].message, "No fixture named 'unknown' found.")
 
         self.assertQuerysetEqual(
             Article.objects.all(), [