1 files changed, 91 insertions, 0 deletions
diff --git a/toolkit/devtools/styleinspector/test/browser_styleinspector_transform-highlighter-03.js b/toolkit/devtools/styleinspector/test/browser_styleinspector_transform-highlighter-03.js
new file mode 100644
index 000000000..7b0a25c2c
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+++ b/toolkit/devtools/styleinspector/test/browser_styleinspector_transform-highlighter-03.js
@@ -0,0 +1,91 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that the css transform highlighter is shown when hovering over transform
+// properties
+
+// Note that in this test, we mock the highlighter front, merely testing the
+// behavior of the style-inspector UI for now
+
+const PAGE_CONTENT = [
+  '<style type="text/css">',
+  '  html {',
+  '    transform: scale(.9);',
+  '  }',
+  '  body {',
+  '    transform: skew(16deg);',
+  '    color: purple;',
+  '  }',
+  '</style>',
+  'Test the css transform highlighter'
+].join("\n");
+
+const TYPE = "CssTransformHighlighter";
+
+add_task(function*() {
+  yield addTab("data:text/html;charset=utf-8," + PAGE_CONTENT);
+
+  let {inspector, view: rView} = yield openRuleView();
+
+  // Mock the highlighter front to get the reference of the NodeFront
+  let HighlighterFront = {
+    isShown: false,
+    nodeFront: null,
+    nbOfTimesShown: 0,
+    show: function(nodeFront) {
+      this.nodeFront = nodeFront;
+      this.isShown = true;
+      this.nbOfTimesShown ++;
+    },
+    hide: function() {
+      this.nodeFront = null;
+      this.isShown = false;
+    }
+  };
+
+  // Inject the mock highlighter in the rule-view
+  rView.highlighters.promises[TYPE] = {
+    then: function(cb) {
+      cb(HighlighterFront);
+    }
+  };
+
+  let {valueSpan} = getRuleViewProperty(rView, "body", "transform");
+
+  info("Checking that the HighlighterFront's show/hide methods are called");
+  rView.highlighters._onMouseMove({target: valueSpan});
+  ok(HighlighterFront.isShown, "The highlighter is shown");
+  rView.highlighters._onMouseLeave();
+  ok(!HighlighterFront.isShown, "The highlighter is hidden");
+
+  info("Checking that hovering several times over the same property doesn't" +
+    " show the highlighter several times");
+  let nb = HighlighterFront.nbOfTimesShown;
+  rView.highlighters._onMouseMove({target: valueSpan});
+  is(HighlighterFront.nbOfTimesShown, nb + 1, "The highlighter was shown once");
+  rView.highlighters._onMouseMove({target: valueSpan});
+  rView.highlighters._onMouseMove({target: valueSpan});
+  is(HighlighterFront.nbOfTimesShown, nb + 1,
+    "The highlighter was shown once, after several mousemove");
+
+  info("Checking that the right NodeFront reference is passed");
+  yield selectNode("html", inspector);
+  ({valueSpan} = getRuleViewProperty(rView, "html", "transform"));
+  rView.highlighters._onMouseMove({target: valueSpan});
+  is(HighlighterFront.nodeFront.tagName, "HTML",
+    "The right NodeFront is passed to the highlighter (1)");
+
+  yield selectNode("body", inspector);
+  ({valueSpan} = getRuleViewProperty(rView, "body", "transform"));
+  rView.highlighters._onMouseMove({target: valueSpan});
+  is(HighlighterFront.nodeFront.tagName, "BODY",
+    "The right NodeFront is passed to the highlighter (2)");
+
+  info("Checking that the highlighter gets hidden when hovering a non-transform property");
+  ({valueSpan} = getRuleViewProperty(rView, "body", "color"));
+  rView.highlighters._onMouseMove({target: valueSpan});
+  ok(!HighlighterFront.isShown, "The highlighter is hidden");
+});