Fixed #25034 -- Converted caches ImproperlyConfigured error to a system check.

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/check_framework/test_caches.py b/tests/check_framework/test_caches.py
new file mode 100644
index 0000000000..ab16c6071c
--- /dev/null
+++ b/tests/check_framework/test_caches.py
@@ -0,0 +1,35 @@
+from django.core.checks.caches import E001
+from django.test import SimpleTestCase
+from django.test.utils import override_settings
+
+
+class CheckCacheSettingsAppDirsTest(SimpleTestCase):
+    VALID_CACHES_CONFIGURATION = {
+        'default': {
+            'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
+        },
+    }
+    INVALID_CACHES_CONFIGURATION = {
+        'other': {
+            'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
+        },
+    }
+
+    @property
+    def func(self):
+        from django.core.checks.caches import check_default_cache_is_configured
+        return check_default_cache_is_configured
+
+    @override_settings(CACHES=VALID_CACHES_CONFIGURATION)
+    def test_default_cache_included(self):
+        """
+        Don't error if 'default' is present in CACHES setting.
+        """
+        self.assertEqual(self.func(None), [])
+
+    @override_settings(CACHES=INVALID_CACHES_CONFIGURATION)
+    def test_default_cache_not_included(self):
+        """
+        Error if 'default' not present in CACHES setting.
+        """
+        self.assertEqual(self.func(None), [E001])