Add eventTrait warning

diff --git a/Civi/Test/EventTestTrait.php b/Civi/Test/EventTestTrait.php
index 6e7da0df61aee32a060816bed2967d7a013fada9..33b8d5e76e3506f1c81d03bd7f45209254862cbf 100644 (file)
--- a/Civi/Test/EventTestTrait.php
+++ b/Civi/Test/EventTestTrait.php
@@ -24,6 +24,10 @@ use Civi\Api4\UFJoin;
 /**
  * Helper for event tests.
  *
+ * WARNING - this trait ships with core from 5.63 but I wasn't able to resolve
+ * all the core tests onto it for 5.63 - hence the signatures may not yet be stable
+ * and it is worth assuming that they will not be stable until 5.65.
+ *
  * This provides functions to set up valid events
  * for unit tests.
  *