1 files changed, 24 insertions, 1 deletions
diff --git a/toolkit/components/narrate/test/browser_narrate_toggle.js b/toolkit/components/narrate/test/browser_narrate_toggle.js
index 54de276001..a7713f01b1 100644
--- a/toolkit/components/narrate/test/browser_narrate_toggle.js
+++ b/toolkit/components/narrate/test/browser_narrate_toggle.js
@@ -4,6 +4,8 @@
 
 // This test verifies that the keyboard shortcut "n" will Start/Stop the
 // narration of an article in readermode when the article is in focus.
+// This test also verifies that the keyboard shortcut "←" (left arrow) will
+// skip the narration backward, while "→" (right arrow) skips it forward.
 
 registerCleanupFunction(teardown);
 
@@ -11,18 +13,39 @@ add_task(async function testToggleNarrate() {
   setup();
 
   await spawnInNewReaderTab(TEST_ARTICLE, async function () {
+    let TEST_VOICE = "urn:moz-tts:fake:teresa";
     let $ = content.document.querySelector.bind(content.document);
 
+    let prefChanged = NarrateTestUtils.waitForPrefChange("narrate.voice");
+    NarrateTestUtils.selectVoice(content, TEST_VOICE);
+    await prefChanged;
+
     await NarrateTestUtils.waitForNarrateToggle(content);
 
     let eventUtils = NarrateTestUtils.getEventUtils(content);
 
     NarrateTestUtils.isStoppedState(content, ok);
 
+    let promiseEvent = ContentTaskUtils.waitForEvent(content, "paragraphstart");
     $(NarrateTestUtils.TOGGLE).focus();
     eventUtils.synthesizeKey("n", {}, content);
+    let speechinfo = (await promiseEvent).detail;
+    let paragraph = speechinfo.paragraph;
+
+    NarrateTestUtils.isStartedState(content, ok);
+
+    promiseEvent = ContentTaskUtils.waitForEvent(content, "paragraphstart");
+    eventUtils.synthesizeKey("KEY_ArrowRight", {}, content);
+    speechinfo = (await promiseEvent).detail;
+    isnot(speechinfo.paragraph, paragraph, "next paragraph is being spoken");
+
+    NarrateTestUtils.isStartedState(content, ok);
+
+    promiseEvent = ContentTaskUtils.waitForEvent(content, "paragraphstart");
+    eventUtils.synthesizeKey("KEY_ArrowLeft", {}, content);
+    speechinfo = (await promiseEvent).detail;
+    is(speechinfo.paragraph, paragraph, "first paragraph being spoken");
 
-    await ContentTaskUtils.waitForEvent(content, "paragraphstart");
     NarrateTestUtils.isStartedState(content, ok);
 
     $(NarrateTestUtils.TOGGLE).focus();