Fixed #20189 -- Allowed customizing staticfiles ignored_patterns list

Thanks Tim Graham for the review.

2 files changed, 19 insertions, 0 deletions

diff --git a/tests/staticfiles_tests/apps/staticfiles_config.py b/tests/staticfiles_tests/apps/staticfiles_config.py
new file mode 100644
index 0000000000..e48a0c8d99
--- /dev/null
+++ b/tests/staticfiles_tests/apps/staticfiles_config.py
@@ -0,0 +1,5 @@
+from django.contrib.staticfiles.apps import StaticFilesConfig
+
+
+class IgnorePatternsAppConfig(StaticFilesConfig):
+    ignore_patterns = ['*.css']
diff --git a/tests/staticfiles_tests/test_management.py b/tests/staticfiles_tests/test_management.py
index f0c6384df7..d2ae7e2ed5 100644
--- a/tests/staticfiles_tests/test_management.py
+++ b/tests/staticfiles_tests/test_management.py
@@ -195,6 +195,20 @@ class TestCollectionExcludeNoDefaultIgnore(TestDefaults, CollectionTestCase):
         self.assertFileContains('test/CVS', 'should be ignored')
 
 
+@override_settings(INSTALLED_APPS=[
+    'staticfiles_tests.apps.staticfiles_config.IgnorePatternsAppConfig',
+    'staticfiles_tests.apps.test',
+])
+class TestCollectionCustomIgnorePatterns(CollectionTestCase):
+    def test_custom_ignore_patterns(self):
+        """
+        A custom ignore_patterns list, ['*.css'] in this case, can be specified
+        in an AppConfig definition.
+        """
+        self.assertFileNotFound('test/nonascii.css')
+        self.assertFileContains('test/.hidden', 'should be ignored')
+
+
 class TestCollectionDryRun(TestNoFilesCreated, CollectionTestCase):
     """
     Test ``--dry-run`` option for ``collectstatic`` management command.