1 files changed, 116 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
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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(async function () {
+  const { inspector, highlighterTestFront } = await openInspectorForURL(
+    TEST_URL
+  );
+  const front = inspector.inspectorFront;
+
+  const highlighter = await front.getHighlighterByType("RulersHighlighter");
+
+  await isHiddenByDefault(highlighter, inspector, highlighterTestFront);
+  await isVisibleAfterShow(highlighter, inspector, highlighterTestFront);
+  await hasRightLabelsContent(highlighter, inspector, highlighterTestFront);
+  await isHiddenAfterHide(highlighter, inspector, highlighterTestFront);
+
+  await highlighter.finalize();
+});
+
+async function isHiddenByDefault(
+  highlighterFront,
+  inspector,
+  highlighterTestFront
+) {
+  info("Checking the highlighter is hidden by default");
+
+  const hidden = await isRulerHidden(highlighterFront, highlighterTestFront);
+  ok(hidden, "highlighter is hidden by default");
+}
+
+async function isVisibleAfterShow(
+  highlighterFront,
+  inspector,
+  highlighterTestFront
+) {
+  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
+  const body = await getNodeFront("body", inspector);
+  await highlighterFront.show(body);
+
+  const hidden = await isRulerHidden(highlighterFront, highlighterTestFront);
+  ok(!hidden, "highlighter is visible after show");
+}
+
+async function isHiddenAfterHide(
+  highlighterFront,
+  inspector,
+  highlighterTestFront
+) {
+  info("Checking that the highlighter is hidden after disabling it");
+  await highlighterFront.hide();
+
+  const hidden = await isRulerHidden(highlighterFront, highlighterTestFront);
+  ok(hidden, "highlighter is hidden");
+}
+
+async function hasRightLabelsContent(
+  highlighterFront,
+  inspector,
+  highlighterTestFront
+) {
+  info("Checking the rulers have the proper text, based on rulers' size");
+
+  const contentX = await highlighterTestFront.getHighlighterNodeTextContent(
+    `${ID}x-axis-text`,
+    highlighterFront
+  );
+  const contentY = await highlighterTestFront.getHighlighterNodeTextContent(
+    `${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");
+}
+
+async function isRulerHidden(highlighterFront, highlighterTestFront) {
+  const hidden = await highlighterTestFront.getHighlighterNodeAttribute(
+    ID + "elements",
+    "hidden",
+    highlighterFront
+  );
+  return hidden === "true";
+}