testing/mochitest/tests/browser/browser_fail_uncaught_rejection_expected_multi.js

   1 setExpectedFailuresForSelfTest(1);
   2
   3 // The test will fail because an expected uncaught rejection is actually caught.
   4 const { PromiseTestUtils } = ChromeUtils.importESModule(
   5   "resource://testing-common/PromiseTestUtils.sys.mjs"
   6 );
   7 PromiseTestUtils.expectUncaughtRejection(/Promise rejection./);
   8
   9 function test() {
  10   Promise.reject(new Error("Promise rejection.")).catch(() => {});
  11 }