1 files changed, 65 insertions, 0 deletions
diff --git a/dom/base/test/fullscreen/browser_fullscreen-tab-close.js b/dom/base/test/fullscreen/browser_fullscreen-tab-close.js
new file mode 100644
index 0000000000..7d1772cd48
--- /dev/null
+++ b/dom/base/test/fullscreen/browser_fullscreen-tab-close.js
@@ -0,0 +1,65 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+requestLongerTimeout(2);
+
+// Import helpers
+Services.scriptloader.loadSubScript(
+  "chrome://mochitests/content/browser/dom/base/test/fullscreen/fullscreen_helpers.js",
+  this
+);
+
+// This test tends to trigger a race in the fullscreen time telemetry,
+// where the fullscreen enter and fullscreen exit events (which use the
+// same histogram ID) overlap. That causes TelemetryStopwatch to log an
+// error.
+SimpleTest.ignoreAllUncaughtExceptions(true);
+
+add_setup(async function () {
+  await pushPrefs(
+    ["full-screen-api.transition-duration.enter", "0 0"],
+    ["full-screen-api.transition-duration.leave", "0 0"],
+    ["full-screen-api.allow-trusted-requests-only", false]
+  );
+});
+
+TEST_URLS.forEach(url => {
+  add_task(async () => {
+    info(`url: ${url}`);
+    await BrowserTestUtils.withNewTab(
+      {
+        gBrowser,
+        url,
+      },
+      async function (browser) {
+        let promiseFsState = waitForFullscreenState(document, true);
+        // Trigger click event in inner most iframe
+        SpecialPowers.spawn(
+          browser.browsingContext.children[0].children[0],
+          [],
+          function () {
+            content.setTimeout(() => {
+              content.document.getElementById("div").click();
+            }, 0);
+          }
+        );
+        await promiseFsState;
+
+        let promiseFsExit = waitForFullscreenExit(document, false);
+        // This should exit fullscreen
+        let tab = gBrowser.getTabForBrowser(browser);
+        BrowserTestUtils.removeTab(tab);
+        await promiseFsExit;
+
+        // Ensure the browser exits fullscreen state.
+        ok(!window.fullScreen, "The chrome window should not be in fullscreen");
+        ok(
+          !document.documentElement.hasAttribute("inDOMFullscreen"),
+          "The chrome document should not be in fullscreen"
+        );
+      }
+    );
+  });
+});