Bug 1756274 - Make browser_findbar.js more resilient. r=mcheang,NeilDeakin

Disable smooth scrolling during one of the tasks and add DOCTYPE. I don't know a way to test this in the same environment that failed in the automated job, so this is mostly a guess, but it doesn't seem like it can hurt in this case. Differential Revision: https://phabricator.services.mozilla.com/D139407
2022-03-11 20:47:05 +00:00 · 2022-03-11 20:47:05 +00:00 · 3035ebae4d
--- a/toolkit/content/tests/browser/browser_findbar.js
+++ b/toolkit/content/tests/browser/browser_findbar.js
@ -308,9 +308,16 @@ add_task(async function test_open_and_close_keys() {
 * accel+arrow up/down) still works while the findbar is open.
 */
 add_task(async function test_input_keypress() {
+  await SpecialPowers.pushPrefEnv({ set: [["general.smoothScroll", false]] });
+
  let tab = await BrowserTestUtils.openNewForegroundTab(
    gBrowser,
-    "data:text/html,<body style='height: 5000px;'>Hello There</body>"
+    /* html */
+    `data:text/html,
+    <!DOCTYPE html>
+    <body style='height: 5000px;'>
+    Hello There
+    </body>`
  );

  await gFindBarPromise;