1 files changed, 69 insertions, 0 deletions
diff --git a/devtools/client/inspector/test/browser_inspector_highlighter-csstransform_02.js b/devtools/client/inspector/test/browser_inspector_highlighter-csstransform_02.js
new file mode 100644
index 0000000000..9903a40da0
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+++ b/devtools/client/inspector/test/browser_inspector_highlighter-csstransform_02.js
@@ -0,0 +1,69 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/*
+Bug 1014547 - CSS transforms highlighter
+Test that the highlighter elements created have the right size and coordinates.
+
+Note that instead of hard-coding values here, the assertions are made by
+comparing with the result of getAdjustedQuads.
+
+There's a separate test for checking that getAdjustedQuads actually returns
+sensible values
+(devtools/client/shared/test/browser_layoutHelpers-getBoxQuads.js),
+so the present test doesn't care about that, it just verifies that the css
+transform highlighter applies those values correctly to the SVG elements
+*/
+
+const TEST_URL = URL_ROOT + "doc_inspector_highlighter_csstransform.html";
+
+add_task(async function () {
+  const { inspector, highlighterTestFront } = await openInspectorForURL(
+    TEST_URL
+  );
+  const front = inspector.inspectorFront;
+
+  const highlighter = await front.getHighlighterByType(
+    "CssTransformHighlighter"
+  );
+
+  const nodeFront = await getNodeFront("#test-node", inspector);
+
+  info("Displaying the transform highlighter on test node");
+  await highlighter.show(nodeFront);
+
+  const data = await getAllAdjustedQuadsForContentPageElement("#test-node");
+  const [expected] = data.border;
+
+  const points = await highlighterTestFront.getHighlighterNodeAttribute(
+    "css-transform-transformed",
+    "points",
+    highlighter
+  );
+  const polygonPoints = points.split(" ").map(p => {
+    return {
+      x: +p.substring(0, p.indexOf(",")),
+      y: +p.substring(p.indexOf(",") + 1),
+    };
+  });
+
+  for (let i = 1; i < 5; i++) {
+    is(
+      polygonPoints[i - 1].x,
+      expected["p" + i].x,
+      "p" + i + " x coordinate is correct"
+    );
+    is(
+      polygonPoints[i - 1].y,
+      expected["p" + i].y,
+      "p" + i + " y coordinate is correct"
+    );
+  }
+
+  info("Hiding the transform highlighter");
+  await highlighter.hide();
+  await highlighter.finalize();
+});