From 7f4d9e31c308a95ac9d58b9e41821a2ba044a7d7 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Thu, 8 Jan 2026 11:52:04 +0100
Subject: [PATCH] Add test about deletion

---
 test/tests.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/tests.py b/test/tests.py
index e73e2da4af..3cfc796e00 100644
--- a/test/tests.py
+++ b/test/tests.py
@@ -55,6 +55,18 @@ assert str(prop) == str(prop2).replace(str(prop2.id()), str(prop.id()))
 assert prop2.id() == 1
 # Adding the same instance returns the previous copy
 assert f2.add(prop) == prop2
+f2.remove(f2[1])
+try:
+    print(prop2)
+    assert False
+except:
+    assert True
+try:
+    f2[1]
+    assert False
+except:
+    assert True
+
 
 # A recursively obtained python dictionary representation
 # matches for copied instances as well