1 files changed, 5 insertions, 0 deletions
diff --git a/php/tests/memory_leak_test.php b/php/tests/memory_leak_test.php
index af327273..d4776d6f 100644
--- a/php/tests/memory_leak_test.php
+++ b/php/tests/memory_leak_test.php
@@ -79,3 +79,8 @@ $data = $m->encode();
 $n = new TestMessage();
 $n->decode($data);
 assert(1 === $n->getOneofMessage()->getA());
+
+$from = new TestMessage();
+$to = new TestMessage();
+TestUtil::setTestMessage($from);
+$to->mergeFrom($from);