From: Paul Holden <paul.holden@gmail.com>
Date: Mon, 25 Aug 2014 01:58:19 +0000 (-0400)
Subject: Update the hidpi test to work on a wider variety of platforms (e.g. when running... 
X-Git-Tag: v1.1.0~49^2
X-Git-Url: https://adrianiainlam.tk/git/?a=commitdiff_plain;h=5fc893534031ff443e00b94325fdfc007274f99a;p=dygraphs.git

Update the hidpi test to work on a wider variety of platforms (e.g. when running the tests via `java -jar ./auto_tests/lib/JsTestDriver-1.3.3c.jar --tests all`)
---

diff --git a/auto_tests/tests/hidpi.js b/auto_tests/tests/hidpi.js
index 17a75a0..c595065 100644
--- a/auto_tests/tests/hidpi.js
+++ b/auto_tests/tests/hidpi.js
@@ -17,7 +17,10 @@ hidpiTestCase.prototype.tearDown = function() {
   window.devicePixelRatio = savePixelRatio;
 };
 
-hidpiTestCase.prototype.testNameGoesHere = function() {
+hidpiTestCase.prototype.testDoesntCreateScrollbars = function() {
+  var sw = document.body.scrollWidth;
+  var cw = document.body.clientWidth;
+
   var graph = document.getElementById("graph");
   graph.style.width = "70%";  // more than half.
   graph.style.height = "200px";
@@ -32,8 +35,10 @@ hidpiTestCase.prototype.testNameGoesHere = function() {
 
   var g = new Dygraph(graph, data, opts);
 
+  // Adding the graph shouldn't cause the width of the page to change.
+  // (essentially, we're checking that we don't end up with a scrollbar)
   // See http://stackoverflow.com/a/2146905/388951
-  var hasHorizontalScrollbar = (document.body.scrollWidth > document.body.clientWidth);
-  assertEquals(false, hasHorizontalScrollbar);
+  assertEquals(cw, document.body.clientWidth);
+  assertEquals(sw, document.body.scrollWidth);
 };