added tests

diff --git a/priority-queue-test b/priority-queue-test
index 2c85647..80049b3 160000 (submodule)
--- a/priority-queue-test
+++ b/priority-queue-test
@@ -1 +1 @@
-Subproject commit 2c85647fa298d6d15db6d3f89a3b919c02902eb8
+Subproject commit 80049b39ba4267edb6a05d666983bb38037ac4ea