tor-browser

The Tor Browser
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yield-promise-reject-next-yield-star-sync-iterator.js (2229B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/async-generators/yield-promise-reject-next-yield-star-sync-iterator.case
      4 // - src/async-generators/default/async-class-expr-static-private-method.template
      5 /*---
      6 description: yield * (async iterator) is treated as throw value (Static async generator method as a ClassExpression element)
      7 esid: prod-AsyncGeneratorPrivateMethod
      8 features: [async-iteration, class-static-methods-private]
      9 flags: [generated, async]
     10 info: |
     11    ClassElement :
     12      static PrivateMethodDefinition
     13 
     14    MethodDefinition :
     15      AsyncGeneratorMethod
     16 
     17    Async Generator Function Definitions
     18 
     19    AsyncGeneratorMethod :
     20      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
     21 
     22 ---*/
     23 let error = new Error();
     24 let iterable = [
     25  Promise.reject(error),
     26  "unreachable"
     27 ];
     28 
     29 
     30 var callCount = 0;
     31 
     32 var C = class {
     33    static async *#gen() {
     34        callCount += 1;
     35        yield * iterable;
     36    }
     37    static get gen() { return this.#gen; }
     38 }
     39 
     40 // Test the private fields do not appear as properties before set to value
     41 assert(
     42  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     43  "#gen does not appear as an own property on C prototype"
     44 );
     45 assert(
     46  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     47  "#gen does not appear as an own property on C constructor"
     48 );
     49 
     50 var iter = C.gen();
     51 
     52 iter.next().then(() => {
     53  throw new Test262Error("Promise incorrectly resolved.");
     54 }, rejectValue => {
     55  // yield Promise.reject(error);
     56  assert.sameValue(rejectValue, error);
     57 
     58  iter.next().then(({done, value}) => {
     59    // iter is closed now.
     60    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
     61    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
     62  }).then($DONE, $DONE);
     63 }).catch($DONE);
     64 
     65 assert.sameValue(callCount, 1);
     66 
     67 // Test the private fields do not appear as properties after set to value
     68 assert(
     69  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     70  "#gen does not appear as an own property on C prototype"
     71 );
     72 assert(
     73  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     74  "#gen does not appear as an own property on C constructor"
     75 );