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// |reftest| shell-option(--enable-promise-try) skip-if(!Promise.try||!xulRuntime.shell)
{
// Check the value of `this` in the callback is undefined.
let this_ = {};
Promise.try(function () {
"use strict";
this_ = this;
});
drainJobQueue();
assertEq(this_, undefined);
}
{
// Error when the `resolve` function passed by a custom promise subclass throws.
let resolveCalled = false;
let rejectCalled = false;
let expectedError = new Error("foo");
class CustomPromise {
constructor(executor) {
let resolve = () => {
resolveCalled = true;
throw expectedError;
};
let reject = () => rejectCalled = true;
executor(resolve, reject);
}
}
let errorThrown = undefined;
try {
Promise.try.call(CustomPromise, function () {});
} catch (e) {
errorThrown = e;
}
drainJobQueue();
assertEq(resolveCalled, true);
assertEq(rejectCalled, false);
assertEq(errorThrown, expectedError);
}
{
// Error when the `reject` function passed by a custom promise subclass throws.
let resolveCalled = false;
let rejectCalled = false;
let expectedError = new Error("foo");
class CustomPromise {
constructor(executor) {
let resolve = () => {
resolveCalled = true;
};
let reject = () => {
rejectCalled = true;
throw expectedError;
};
executor(resolve, reject);
}
}
let errorThrown = undefined;
try {
Promise.try.call(CustomPromise, function () { throw new Error("bar") });
} catch (e) {
errorThrown = e;
}
drainJobQueue();
assertEq(resolveCalled, false);
assertEq(rejectCalled, true);
assertEq(errorThrown, expectedError);
}
reportCompare(true, true);