From 7280fb90d6ec8c1a6ff29b4ab959ffbee88db83d Mon Sep 17 00:00:00 2001
From: Peter Peterson <petey@yahoo-inc.com>
Date: Fri, 30 Sep 2016 16:31:15 -0700
Subject: [PATCH] Fix error calculating buildDuration when there is no
 startTime

---
 app/build/model.js             | 2 +-
 tests/unit/build/model-test.js | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/build/model.js b/app/build/model.js
index eb5ef07f2..1cee46cd4 100644
--- a/app/build/model.js
+++ b/app/build/model.js
@@ -25,7 +25,7 @@ export default DS.Model.extend({
   }),
   buildDuration: Ember.computed('startTime', 'endTime', {
     get() {
-      if (!this.get('endTime')) {
+      if (!this.get('endTime') || !this.get('startTime')) {
         return humanizeDuration(0);
       }
 
diff --git a/tests/unit/build/model-test.js b/tests/unit/build/model-test.js
index 847711c0c..b4a726208 100644
--- a/tests/unit/build/model-test.js
+++ b/tests/unit/build/model-test.js
@@ -32,9 +32,15 @@ test('it calculates buildDuration', function (assert) {
   });
 
   Ember.run(() => {
+    // valid duration
     assert.equal(model.get('buildDuration'), '10 seconds');
+    // no end time, so duration is 0
     model.set('endTime', null);
     assert.equal(model.get('buildDuration'), '0 seconds');
+    // no start time, so duration is 0
+    model.set('endTime', new Date(1472244592531));
+    model.set('startTime', null);
+    assert.equal(model.get('buildDuration'), '0 seconds');
   });
 });