1335b1ec36
With this CL d8 exits with an error code if there is an unhandled promise rejection, e.g. due tue a failed assertion in a promise. Up until now these assertions were just ignored. Bug: v8:10556 Change-Id: I25f20e4be45a2de130562deb15f6a144f0ac976f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2238569 Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#68503}
77 lines
1.9 KiB
JavaScript
77 lines
1.9 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --ignore-unhandled-promises
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// Test debug events when we only listen to uncaught exceptions and
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// there is only a default reject handler for the to-be-rejected Promise.
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// We expect only one debug event: when the first Promise is rejected
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// and only has default reject handlers. No event is triggered when
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// simply forwarding the rejection with .then's default handler.
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Debug = debug.Debug;
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var expected_events = 1;
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var log = [];
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var resolve, reject;
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var p0 = new Promise(function(res, rej) { resolve = res; reject = rej; });
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var p1 = p0.then(function() {
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log.push("p0.then");
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throw new Error("123"); // event
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});
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var p2 = p1.then(function() {
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log.push("p1.then");
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});
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var q = new Promise(function(res, rej) {
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log.push("resolve q");
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res();
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});
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q.then(function() {
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log.push("resolve p");
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resolve();
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})
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function listener(event, exec_state, event_data, data) {
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try {
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if (event == Debug.DebugEvent.Exception) {
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expected_events--;
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assertTrue(expected_events >= 0);
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assertTrue(event_data.uncaught());
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// p1 is rejected, uncaught except for its default reject handler.
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assertTrue(
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exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
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}
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} catch (e) {
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%AbortJS(e + "\n" + e.stack);
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}
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}
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Debug.setBreakOnUncaughtException();
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Debug.setListener(listener);
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log.push("end main");
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function testDone(iteration) {
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function checkResult() {
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try {
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assertTrue(iteration < 10);
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if (expected_events === 0) {
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assertEquals(["resolve q", "end main", "resolve p", "p0.then"], log);
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} else {
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testDone(iteration + 1);
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}
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} catch (e) {
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%AbortJS(e + "\n" + e.stack);
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}
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}
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%EnqueueMicrotask(checkResult);
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}
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testDone(0);
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