From 705688a07c83a308236d025c3af281a95e2d4c16 Mon Sep 17 00:00:00 2001
From: John Haddon <thehaddonyoof@gmail.com>
Date: Wed, 6 Dec 2023 18:02:34 +0000
Subject: [PATCH] TestCase : Complain about zombie catalogues

---
 python/GafferTest/TestCase.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/python/GafferTest/TestCase.py b/python/GafferTest/TestCase.py
index fa410204467..d019133f9a7 100644
--- a/python/GafferTest/TestCase.py
+++ b/python/GafferTest/TestCase.py
@@ -118,6 +118,13 @@ def tearDown( self ) :
 			if message not in self.__messagesToIgnore :
 				self.fail( f"Unexpected message : {message}" )
 
+		import gc
+		import GafferImage
+		self.assertEqual(
+			[ o for o in gc.get_objects() if isinstance( o, GafferImage.Catalogue ) ],
+			[]
+		)
+
 	## Registers a message that will be ignored if it is emitted during the
 	# test run, instead of triggering a failure.
 	def ignoreMessage( self, level, context, message ) :