/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */
add_task(async function test_offscreen_text() {
  const URI = '
find this
';
  await BrowserTestUtils.withNewTab(
    {
      gBrowser,
      url: "data:text/html;charset=utf-8," + encodeURIComponent(URI),
    },
    async function(browser) {
      let finder = browser.finder;
      let listener = {
        onFindResult() {
          ok(false, "callback wasn't replaced");
        },
      };
      finder.addResultListener(listener);
      function waitForFind() {
        return new Promise(resolve => {
          listener.onFindResult = resolve;
        });
      }
      // Find the target text.
      let promiseFind = waitForFind();
      finder.fastFind("find this", false, false);
      let findResult = await promiseFind;
      is(
        findResult.result,
        Ci.nsITypeAheadFind.FIND_FOUND,
        "Found target text."
      );
      finder.removeResultListener(listener);
    }
  );
});