browser_fail_uncaught_rejection_expected.js (391B)
1 // The test will fail because there is only one of two expected rejections. 2 const { PromiseTestUtils } = ChromeUtils.importESModule( 3 "resource://testing-common/PromiseTestUtils.sys.mjs" 4 ); 5 PromiseTestUtils.expectUncaughtRejection(/Promise rejection./); 6 PromiseTestUtils.expectUncaughtRejection(/Promise rejection./); 7 8 function test() { 9 Promise.reject(new Error("Promise rejection.")); 10 }