Fixed #37142 -- Moved django_file_prefixes() to django.utils.warnings.

2 files changed, 34 insertions, 32 deletions

diff --git a/tests/deprecation/tests.py b/tests/deprecation/tests.py
index 0993e8a450..e3a2f872f0 100644
--- a/tests/deprecation/tests.py
+++ b/tests/deprecation/tests.py
@@ -1,44 +1,12 @@
-import os
 import warnings
-from pathlib import Path
 
-import django
 from django.test import SimpleTestCase
 from django.utils.deprecation import (
     RemovedAfterNextVersionWarning,
     RenameMethodsBase,
-    django_file_prefixes,
 )
 
 
-class DjangoFilePrefixesTests(SimpleTestCase):
-    def setUp(self):
-        django_file_prefixes.cache_clear()
-        self.addCleanup(django_file_prefixes.cache_clear)
-
-    def test_no_file(self):
-        orig_file = django.__file__
-        try:
-            # Depending on the cwd, Python might give a local checkout
-            # precedence over installed Django, producing None.
-            django.__file__ = None
-            self.assertEqual(django_file_prefixes(), ())
-            del django.__file__
-            self.assertEqual(django_file_prefixes(), ())
-        finally:
-            django.__file__ = orig_file
-
-    def test_with_file(self):
-        prefixes = django_file_prefixes()
-        self.assertIsInstance(prefixes, tuple)
-        self.assertEqual(len(prefixes), 1)
-        self.assertTrue(prefixes[0].endswith(f"{os.path.sep}django{os.path.sep}"))
-
-    def test_does_not_match_packages_prefixed_with_django(self):
-        other_file = Path(django.__file__).parent.parent / "djangoextra" / "__init__.py"
-        self.assertFalse(str(other_file).startswith(django_file_prefixes()))
-
-
 class RenameManagerMethods(RenameMethodsBase):
     renamed_methods = (("old", "new", DeprecationWarning),)
 
diff --git a/tests/utils_tests/test_warnings.py b/tests/utils_tests/test_warnings.py
new file mode 100644
index 0000000000..0c98e8ebe4
--- /dev/null
+++ b/tests/utils_tests/test_warnings.py
@@ -0,0 +1,34 @@
+import os
+from pathlib import Path
+
+import django
+from django.test import SimpleTestCase
+from django.utils.warnings import django_file_prefixes
+
+
+class DjangoFilePrefixesTests(SimpleTestCase):
+    def setUp(self):
+        django_file_prefixes.cache_clear()
+        self.addCleanup(django_file_prefixes.cache_clear)
+
+    def test_no_file(self):
+        orig_file = django.__file__
+        try:
+            # Depending on the cwd, Python might give a local checkout
+            # precedence over installed Django, producing None.
+            django.__file__ = None
+            self.assertEqual(django_file_prefixes(), ())
+            del django.__file__
+            self.assertEqual(django_file_prefixes(), ())
+        finally:
+            django.__file__ = orig_file
+
+    def test_with_file(self):
+        prefixes = django_file_prefixes()
+        self.assertIsInstance(prefixes, tuple)
+        self.assertEqual(len(prefixes), 1)
+        self.assertTrue(prefixes[0].endswith(f"{os.path.sep}django{os.path.sep}"))
+
+    def test_does_not_match_packages_prefixed_with_django(self):
+        other_file = Path(django.__file__).parent.parent / "djangoextra" / "__init__.py"
+        self.assertFalse(str(other_file).startswith(django_file_prefixes()))