diff -r d5b9da0df929 -r 7960b5f85729 libpurple/tests/test_credential_manager.c
--- a/libpurple/tests/test_credential_manager.c	Tue May 20 17:21:16 2025 -0500
+++ b/libpurple/tests/test_credential_manager.c	Thu Jun 12 23:48:22 2025 -0500
@@ -18,6 +18,8 @@
 
 #include <glib.h>
 
+#include <birb.h>
+
 #include <purple.h>
 
 /******************************************************************************
@@ -139,21 +141,6 @@
  * Callbacks
  *****************************************************************************/
 static void
-test_purple_credential_provider_items_changed_cb(GListModel *model,
-                                                 G_GNUC_UNUSED guint position,
-                                                 G_GNUC_UNUSED guint removed,
-                                                 G_GNUC_UNUSED guint added,
-                                                 gpointer data)
-{
-	guint *counter = data;
-
-	g_assert_true(PURPLE_IS_CREDENTIAL_MANAGER(model));
-	g_assert_true(G_IS_LIST_MODEL(model));
-
-	*counter = *counter + 1;
-}
-
-static void
 test_purple_credential_provider_added_removed_cb(PurpleCredentialManager *manager,
                                                  PurpleCredentialProvider *provider,
                                                  gpointer data)
@@ -203,9 +190,7 @@
 	g_signal_connect(manager, "removed",
 	                 G_CALLBACK(test_purple_credential_provider_added_removed_cb),
 	                 &removed);
-	g_signal_connect(manager, "items-changed",
-	                 G_CALLBACK(test_purple_credential_provider_items_changed_cb),
-	                 &changed);
+	birb_count_list_model_items_changed(G_LIST_MODEL(manager), &changed);
 
 	provider = test_purple_credential_provider_new();