1 files changed, 95 insertions, 0 deletions
diff --git a/devtools/client/inspector/test/browser_inspector_highlighter-inline.js b/devtools/client/inspector/test/browser_inspector_highlighter-inline.js
new file mode 100644
index 0000000000..158c0b9ce8
--- /dev/null
+++ b/devtools/client/inspector/test/browser_inspector_highlighter-inline.js
@@ -0,0 +1,95 @@
+/* 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";
+
+requestLongerTimeout(2);
+
+// Test that highlighting various inline boxes displays the right number of
+// polygons in the page.
+
+const TEST_URL = URL_ROOT + "doc_inspector_highlighter_inline.html";
+const TEST_DATA = [
+  "body",
+  "h1",
+  "h2",
+  "h2 em",
+  "p",
+  "p span",
+  // The following test case used to fail. See bug 1139925.
+  "[dir=rtl] > span",
+];
+
+add_task(async function () {
+  info("Loading the test document and opening the inspector");
+  const { inspector, highlighterTestFront } = await openInspectorForURL(
+    TEST_URL
+  );
+
+  for (const selector of TEST_DATA) {
+    info("Selecting and highlighting node " + selector);
+    await selectAndHighlightNode(selector, inspector);
+
+    info("Get all quads for this node");
+    const data = await getAllAdjustedQuadsForContentPageElement(selector);
+
+    info(
+      "Iterate over the box-model regions and verify that the highlighter " +
+        "is correct"
+    );
+    for (const region of ["margin", "border", "padding", "content"]) {
+      const { points } = await highlighterTestFront.getHighlighterRegionPath(
+        region
+      );
+      is(
+        points.length,
+        data[region].length,
+        "The highlighter's " +
+          region +
+          " path defines the correct number of boxes"
+      );
+    }
+
+    info(
+      "Verify that the guides define a rectangle that contains all " +
+        "content boxes"
+    );
+
+    const expectedContentRect = {
+      p1: { x: Infinity, y: Infinity },
+      p2: { x: -Infinity, y: Infinity },
+      p3: { x: -Infinity, y: -Infinity },
+      p4: { x: Infinity, y: -Infinity },
+    };
+    for (const { p1, p2, p3, p4 } of data.content) {
+      expectedContentRect.p1.x = Math.min(expectedContentRect.p1.x, p1.x);
+      expectedContentRect.p1.y = Math.min(expectedContentRect.p1.y, p1.y);
+      expectedContentRect.p2.x = Math.max(expectedContentRect.p2.x, p2.x);
+      expectedContentRect.p2.y = Math.min(expectedContentRect.p2.y, p2.y);
+      expectedContentRect.p3.x = Math.max(expectedContentRect.p3.x, p3.x);
+      expectedContentRect.p3.y = Math.max(expectedContentRect.p3.y, p3.y);
+      expectedContentRect.p4.x = Math.min(expectedContentRect.p4.x, p4.x);
+      expectedContentRect.p4.y = Math.max(expectedContentRect.p4.y, p4.y);
+    }
+
+    const contentRect = await highlighterTestFront.getGuidesRectangle();
+
+    for (const point of ["p1", "p2", "p3", "p4"]) {
+      is(
+        Math.round(contentRect[point].x),
+        Math.round(expectedContentRect[point].x),
+        "x coordinate of point " +
+          point +
+          " of the content rectangle defined by the outer guides is correct"
+      );
+      is(
+        Math.round(contentRect[point].y),
+        Math.round(expectedContentRect[point].y),
+        "y coordinate of point " +
+          point +
+          " of the content rectangle defined by the outer guides is correct"
+      );
+    }
+  }
+});