js/src/tests/non262/Promise/self-resolve.js


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// |reftest| skip-if(!xulRuntime.shell) -- needs drainJobQueue

// Resolve Promise with itself by directly calling the "Promise Resolve Function".
let resolve;
let promise = new Promise(function(x) { resolve = x; });
resolve(promise)

let results = [];
promise.then(res => assertEq(true, false, "not reached")).catch(res => {
    assertEq(res instanceof TypeError, true);
    results.push("rejected");
});

drainJobQueue()

assertEq(results.length, 1);
assertEq(results[0], "rejected");


// Resolve Promise with itself when the "Promise Resolve Function" is called
// from (the fast path in) PromiseReactionJob.
results = [];

promise = new Promise(x => { resolve = x; });
let promise2 = promise.then(() => promise2);

promise2.then(() => assertEq(true, false, "not reached"), res => {
    assertEq(res instanceof TypeError, true);
    results.push("rejected");
});

resolve();

drainJobQueue();

assertEq(results.length, 1);
assertEq(results[0], "rejected");


this.reportCompare && reportCompare(0, 0, "ok");