1 files changed, 76 insertions, 0 deletions
diff --git a/devtools/client/inspector/test/browser_inspector_highlighter-rulers_01.js b/devtools/client/inspector/test/browser_inspector_highlighter-rulers_01.js
new file mode 100644
index 000000000..f5deb0222
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+++ b/devtools/client/inspector/test/browser_inspector_highlighter-rulers_01.js
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+/* 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";
+
+// Test the creation of the geometry highlighter elements.
+
+const TEST_URL = "data:text/html;charset=utf-8," +
+                 "<div style='position:absolute;left: 0; top: 0; " +
+                 "width: 40000px; height: 8000px'></div>";
+
+const ID = "rulers-highlighter-";
+
+// Maximum size, in pixel, for the horizontal ruler and vertical ruler
+// used by RulersHighlighter
+const RULERS_MAX_X_AXIS = 10000;
+const RULERS_MAX_Y_AXIS = 15000;
+// Number of steps after we add a text in RulersHighliter;
+// currently the unit is in pixel.
+const RULERS_TEXT_STEP = 100;
+
+add_task(function* () {
+  let { inspector, testActor } = yield openInspectorForURL(TEST_URL);
+  let front = inspector.inspector;
+
+  let highlighter = yield front.getHighlighterByType("RulersHighlighter");
+
+  yield isHiddenByDefault(highlighter, inspector, testActor);
+  yield hasRightLabelsContent(highlighter, inspector, testActor);
+
+  yield highlighter.finalize();
+});
+
+function* isHiddenByDefault(highlighterFront, inspector, testActor) {
+  info("Checking the highlighter is hidden by default");
+
+  let hidden = yield testActor.getHighlighterNodeAttribute(
+      ID + "elements", "hidden", highlighterFront);
+
+  is(hidden, "true", "highlighter is hidden by default");
+
+  info("Checking the highlighter is displayed when asked");
+  // the rulers doesn't need any node, but as highligher it seems mandatory
+  // ones, so the body is given
+  let body = yield getNodeFront("body", inspector);
+  yield highlighterFront.show(body);
+
+  hidden = yield testActor.getHighlighterNodeAttribute(
+      ID + "elements", "hidden", highlighterFront);
+
+  isnot(hidden, "true", "highlighter is visible after show");
+}
+
+function* hasRightLabelsContent(highlighterFront, inspector, testActor) {
+  info("Checking the rulers have the proper text, based on rulers' size");
+
+  let contentX = yield testActor.getHighlighterNodeTextContent(
+    `${ID}x-axis-text`, highlighterFront);
+  let contentY = yield testActor.getHighlighterNodeTextContent(
+    `${ID}y-axis-text`, highlighterFront);
+
+  let expectedX = "";
+  for (let i = RULERS_TEXT_STEP; i < RULERS_MAX_X_AXIS; i += RULERS_TEXT_STEP) {
+    expectedX += i;
+  }
+
+  is(contentX, expectedX, "x axis text content is correct");
+
+  let expectedY = "";
+  for (let i = RULERS_TEXT_STEP; i < RULERS_MAX_Y_AXIS; i += RULERS_TEXT_STEP) {
+    expectedY += i;
+  }
+
+  is(contentY, expectedY, "y axis text content is correct");
+}