From 7fdead01009570298d4d6777192880b2d1422a90 Mon Sep 17 00:00:00 2001
From: Brandon Keepers <brandon@opensoul.org>
Date: Thu, 5 Mar 2015 10:11:08 -0800
Subject: [PATCH] Only yield if block given

---
 test/test_instrumentation.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/test_instrumentation.rb b/test/test_instrumentation.rb
index b9e5c3e9..9fd5dc66 100644
--- a/test/test_instrumentation.rb
+++ b/test/test_instrumentation.rb
@@ -14,7 +14,7 @@ class TestInstrumentation < Minitest::Test
 
     def instrument(name, *args)
       @events << Event.new(name, args)
-      yield
+      yield if block_given?
     end
   end