1 files changed, 21 insertions, 0 deletions
diff --git a/browser/components/uitour/test/browser_UITour_toggleReaderMode.js b/browser/components/uitour/test/browser_UITour_toggleReaderMode.js
new file mode 100644
index 0000000000..f3f45cdf27
--- /dev/null
+++ b/browser/components/uitour/test/browser_UITour_toggleReaderMode.js
@@ -0,0 +1,21 @@
+"use strict";
+
+var gTestTab;
+var gContentAPI;
+
+add_task(setup_UITourTest);
+
+add_UITour_task(async function () {
+  ok(
+    !gBrowser.selectedBrowser.currentURI.spec.startsWith("about:reader"),
+    "Should not be in reader mode at start of test."
+  );
+  await gContentAPI.toggleReaderMode();
+  await waitForConditionPromise(() =>
+    gBrowser.selectedBrowser.currentURI.spec.startsWith("about:reader")
+  );
+  ok(
+    gBrowser.selectedBrowser.currentURI.spec.startsWith("about:reader"),
+    "Should be in reader mode now."
+  );
+});