Bug 1423078 - Use assert_greater_than instead of assert_true. r=birtles

MozReview-Commit-ID: C4LZQni43wp

--HG--
extra : rebase_source : 0f68abbd0a1f8cf9e005e2bdecd7e7f267c64cba

dom/animation/test/css-animations/file_animation-pausing.html

@@ -25,7 +25,7 @@ promise_test(function(t) {
   animation.play();
 
   return animation.ready.then(waitForFrame).then(function() {
-    assert_true(getMarginLeft(cs) > 0,
+    assert_greater_than(getMarginLeft(cs), 0,
                         'Playing value of margin-left is greater than zero');
   });
 }, 'play() overrides animation-play-state');
@@ -98,7 +98,7 @@ promise_test(function(t) {
   return animation.ready.then(waitForFrame).then(function() {
     assert_equals(cs.animationPlayState, 'paused',
                   'animation-play-state is paused');
-    assert_true(getMarginLeft(cs) > previousAnimVal,
+    assert_greater_than(getMarginLeft(cs), previousAnimVal,
                         'Playing value of margin-left is increasing');
   });
 }, 'play() flushes pending changes to animation-play-state first');

dom/animation/test/css-transitions/file_animation-pausing.html

@@ -25,7 +25,7 @@ async_test(function(t) {
   var previousAnimVal = getMarginLeft(cs);
 
   animation.ready.then(waitForFrame).then(t.step_func(function() {
-    assert_true(getMarginLeft(cs) > previousAnimVal,
+    assert_greater_than(getMarginLeft(cs), previousAnimVal,
                         'margin-left is initially increasing');
     animation.pause();
     return animation.ready;
@@ -39,7 +39,7 @@ async_test(function(t) {
     animation.play();
     return animation.ready.then(waitForFrame);
   })).then(t.step_func(function() {
-    assert_true(getMarginLeft(cs) > previousAnimVal,
+    assert_greater_than(getMarginLeft(cs), previousAnimVal,
                         'margin-left increases after calling play()');
     t.done();
   }));