Add a test for the 2019-09 $id lookup.

1 files changed, 13 insertions, 0 deletions

diff --git a/jsonschema/tests/test_validators.py b/jsonschema/tests/test_validators.py
index 026ee85..e3e4bbc 100644
--- a/jsonschema/tests/test_validators.py
+++ b/jsonschema/tests/test_validators.py
@@ -1588,6 +1588,19 @@ class TestValidatorFor(SynchronousTestCase):
             validators.Draft7Validator,
         )
 
+    def test_draft_201909(self):
+        schema = {"$schema": "https://json-schema.org/draft/2019-09/schema"}
+        self.assertIs(
+            validators.validator_for(schema),
+            validators.Draft201909Validator,
+        )
+
+        schema = {"$schema": "https://json-schema.org/draft/2019-09/schema#"}
+        self.assertIs(
+            validators.validator_for(schema),
+            validators.Draft201909Validator,
+        )
+
     def test_draft_202012(self):
         schema = {"$schema": "https://json-schema.org/draft/2020-12/schema"}
         self.assertIs(