add unit test

baermat · baermat · commit 412623ce7ddd · 2025-10-22T17:08:52.000+02:00
diff --git a/tests/unit/utils/aws/test_arns.py b/tests/unit/utils/aws/test_arns.py
@@ -0,0 +1,19 @@
+from localstack.utils.aws import arns
+
+
+def test_arn_creation_with_colon_names():
+    region_name = "us-east-1"
+    account_id = "123456789012"
+    name = "noColons"
+    name_colon = "col:on"
+    pattern = "arn:%s:<service>:%s:%s:thing/%s"
+
+    assert (
+        arns._resource_arn(name, pattern, account_id, region_name)
+        == f"arn:aws:<service>:{region_name}:{account_id}:thing/{name}"
+    )
+    assert arns._resource_arn(name_colon, pattern, account_id, region_name) == name_colon
+    assert (
+        arns._resource_arn(name_colon, pattern, account_id, region_name, True)
+        == f"arn:aws:<service>:{region_name:}:{account_id}:thing/{name_colon}"
+    )
