v8/test/mjsunit/es6/debug-promises/reject-with-invalid-reject.js
littledan 88c8361b8f Unstage non-standard Promise functions
This patch removes Promise functions and methods which are absent
from the ES2015 specification when the --es-staging flag is on.
The patch is being relanded after being reverted due to an
unrelated bug. This version is slightly different as promise_chain
is installed on the context regardless of the flag value, so that
the Promise::Chain API continues to work until it is deprecated.

BUG=v8:3237
R=rossberg
LOG=Y

Review URL: https://codereview.chromium.org/1513873002

Cr-Commit-Position: refs/heads/master@{#32772}
2015-12-10 23:58:26 +00:00

75 lines
1.8 KiB
JavaScript

// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-debug-as debug --allow-natives-syntax --promise-extra
// Test debug events when a Promise is rejected, which is caught by a custom
// promise, which has a number for reject closure. We expect an Exception debug
// events trying to call the invalid reject closure.
Debug = debug.Debug;
var expected_events = 1;
var log = [];
var p = new Promise(function(resolve, reject) {
log.push("resolve");
resolve();
});
function MyPromise(resolver) {
var reject = 1;
var resolve = function() { };
log.push("construct");
resolver(resolve, reject);
};
MyPromise.prototype = new Promise(function() {});
p.constructor = MyPromise;
var q = p.chain(
function() {
log.push("reject caught");
return Promise.reject(new Error("caught"));
});
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Exception) {
expected_events--;
assertTrue(expected_events >= 0);
assertEquals("number is not a function", event_data.exception().message);
// All of the frames on the stack are from native Javascript.
assertEquals(0, exec_state.frameCount());
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
Debug.setBreakOnUncaughtException();
Debug.setListener(listener);
function testDone(iteration) {
function checkResult() {
try {
assertTrue(iteration < 10);
if (expected_events === 0) {
assertEquals(["resolve", "construct", "end main", "reject caught"],
log);
} else {
testDone(iteration + 1);
}
} catch (e) {
%AbortJS(e + "\n" + e.stack);
}
}
%EnqueueMicrotask(checkResult);
}
testDone(0);
log.push("end main");