siesta-lite/tests/siesta_ui/testfiles/631_fail_for_promise_rejection.t.js

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StartTest(function(t) {

    var p = new Promise(function (resolve, reject) {
        reject();
    });

    p.then(function () {})

    // need to wait, because "unhandledrejection" event is async and test will be finalized before its fired
    t.waitFor(100)
})