From 2a90e5868d7911f0bc85bfef16216d2409aaa1d5 Mon Sep 17 00:00:00 2001
From: Eric Rosenbaum <eric.rosenbaum@gmail.com>
Date: Thu, 5 Apr 2018 15:01:52 -0400
Subject: [PATCH] Fix runtime scope and unit test

---
 src/extensions/scratch3_music/index.js | 2 +-
 test/unit/extension_music.js           | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/extensions/scratch3_music/index.js b/src/extensions/scratch3_music/index.js
index 3a5552c45..03f175c75 100644
--- a/src/extensions/scratch3_music/index.js
+++ b/src/extensions/scratch3_music/index.js
@@ -76,7 +76,7 @@ class Scratch3MusicBlocks {
         this._loadAllSounds();
 
         this._onTargetCreated = this._onTargetCreated.bind(this);
-        runtime.on('targetWasCreated', this._onTargetCreated);
+        this.runtime.on('targetWasCreated', this._onTargetCreated);
     }
 
     /**
diff --git a/test/unit/extension_music.js b/test/unit/extension_music.js
index ad35b29a8..d17069d40 100644
--- a/test/unit/extension_music.js
+++ b/test/unit/extension_music.js
@@ -2,7 +2,8 @@ const test = require('tap').test;
 const Music = require('../../src/extensions/scratch3_music/index.js');
 
 const fakeRuntime = {
-    getTargetForStage: () => ({tempo: 60})
+    getTargetForStage: () => ({tempo: 60}),
+    on: () => {} // Stub out listener methods used in constructor.
 };
 
 const blocks = new Music(fakeRuntime);