From b34a9d69720e940f4e8be4435a341abdec0b0118 Mon Sep 17 00:00:00 2001
From: Ash Wilson <smashwilson@github.com>
Date: Thu, 22 Jun 2017 12:37:26 -0400
Subject: [PATCH] Only resolve the waitForChanges promise once

---
 spec/filesystem-manager-spec.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/spec/filesystem-manager-spec.js b/spec/filesystem-manager-spec.js
index bece1d09e..29e0ca435 100644
--- a/spec/filesystem-manager-spec.js
+++ b/spec/filesystem-manager-spec.js
@@ -29,6 +29,7 @@ describe('FileSystemManager', function () {
 
   function waitForChanges (watcher, ...fileNames) {
     const waiting = new Set(fileNames)
+    let fired = false
     const relevantEvents = []
 
     return new Promise(resolve => {
@@ -39,7 +40,8 @@ describe('FileSystemManager', function () {
           }
         }
 
-        if (waiting.size === 0) {
+        if (!fired && waiting.size === 0) {
+          fired = true
           resolve(relevantEvents)
           sub.dispose()
         }