From fd88077fa32f47c63b50371a939e1b4e0ae4e22c Mon Sep 17 00:00:00 2001
From: Hans-Joachim Krauch <achim-k@users.noreply.github.com>
Date: Tue, 26 Sep 2023 19:43:01 +0200
Subject: [PATCH] Fix ROS2 CI for iron & rolling (#875)

---
 rosapi/test/test_stringify_field_types.py | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/rosapi/test/test_stringify_field_types.py b/rosapi/test/test_stringify_field_types.py
index a1d43563e..ca551bbd0 100644
--- a/rosapi/test/test_stringify_field_types.py
+++ b/rosapi/test/test_stringify_field_types.py
@@ -137,17 +137,19 @@ def test_stringify_field_types(self):
         )
 
         try:
-            self.assertEqual(
+            # We match against a regex here as the Gid.msg differs between distros:
+            # Distros up to humble use 24 bytes, more recent distros use 16 bytes.
+            # See https://github.com/ros2/rmw_dds_common/pull/68
+            self.assertRegex(
                 stringify_field_types("rmw_dds_common/NodeEntitiesInfo"),
-                """\
-string<=256 node_namespace
+                r"""string<=256 node_namespace
 string<=256 node_name
-Gid[] reader_gid_seq
-Gid[] writer_gid_seq
+Gid\[\] reader_gid_seq
+Gid\[\] writer_gid_seq
 
 ================================================================================
 MSG: rmw_dds_common/Gid
-char[24] data
+char\[(24|16)\] data
 """,
             )
         except InvalidModuleException: