1 files changed, 57 insertions, 0 deletions
diff --git a/devtools/client/responsive/test/browser/browser_tooltip.js b/devtools/client/responsive/test/browser/browser_tooltip.js
new file mode 100644
index 0000000000..c121b6c8f8
--- /dev/null
+++ b/devtools/client/responsive/test/browser/browser_tooltip.js
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_CONTENT = `<h1 title="test title">test h1</h1>`;
+const TEST_URL = `data:text/html;charset=utf-8,${TEST_CONTENT}`;
+
+// Test for the tooltip coordinate on the browsing document in RDM.
+
+addRDMTask(TEST_URL, async ({ ui }) => {
+  // On ubuntu1804, the test fails if the real mouse cursor is on the test document.
+  // See Bug 1600183
+  info("Disable non test mouse event");
+  window.windowUtils.disableNonTestMouseEvents(true);
+  registerCleanupFunction(() => {
+    window.windowUtils.disableNonTestMouseEvents(false);
+  });
+
+  info("Create a promise which waits until the tooltip will be shown");
+  const tooltip = ui.browserWindow.gBrowser.ownerDocument.getElementById(
+    "remoteBrowserTooltip"
+  );
+  const onTooltipShown = BrowserTestUtils.waitForEvent(tooltip, "popupshown");
+
+  info("Show a tooltip");
+  await spawnViewportTask(ui, {}, async () => {
+    const target = content.document.querySelector("h1");
+    await EventUtils.synthesizeMouse(
+      target,
+      1,
+      1,
+      { type: "mouseover", isSynthesized: false },
+      content
+    );
+    await EventUtils.synthesizeMouse(
+      target,
+      2,
+      1,
+      { type: "mousemove", isSynthesized: false },
+      content
+    );
+    await EventUtils.synthesizeMouse(
+      target,
+      3,
+      1,
+      { type: "mousemove", isSynthesized: false },
+      content
+    );
+  });
+
+  info("Wait for showing the tooltip");
+  await onTooltipShown;
+
+  info("Test the X coordinate of the tooltip");
+  isnot(tooltip.screenX, 0, "The X coordinate of tooltip should not be 0");
+});