1 files changed, 38 insertions, 0 deletions
diff --git a/browser/components/uitour/test/browser_UITour_private_browsing.js b/browser/components/uitour/test/browser_UITour_private_browsing.js
new file mode 100644
index 0000000000..0c5a52f667
--- /dev/null
+++ b/browser/components/uitour/test/browser_UITour_private_browsing.js
@@ -0,0 +1,38 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/**
+ * Tests that UITour will work in private browsing windows with
+ * tabs pointed at sites that have the uitour permission set to
+ * allowed.
+ */
+add_task(async function test_privatebrowsing_window() {
+  // These two constants point to origins that have a default
+  // uitour allow entry in browser/app/permissions. The expectation is
+  // that these defaults are special, in that they'll apply for both
+  // private and non-private contexts.
+  const ABOUT_ORIGIN_WITH_UITOUR_DEFAULT = "about:newtab";
+  const HTTPS_ORIGIN_WITH_UITOUR_DEFAULT = "https://www.mozilla.org";
+
+  let win = await BrowserTestUtils.openNewBrowserWindow({ private: true });
+  let browser = win.gBrowser.selectedBrowser;
+
+  for (let uri of [
+    ABOUT_ORIGIN_WITH_UITOUR_DEFAULT,
+    HTTPS_ORIGIN_WITH_UITOUR_DEFAULT,
+  ]) {
+    BrowserTestUtils.startLoadingURIString(browser, uri);
+    await BrowserTestUtils.browserLoaded(browser);
+
+    await SpecialPowers.spawn(browser, [], async () => {
+      let actor = content.windowGlobalChild.getActor("UITour");
+      Assert.ok(
+        actor.ensureTrustedOrigin(),
+        "Page should be considered trusted for UITour."
+      );
+    });
+  }
+  await BrowserTestUtils.closeWindow(win);
+});