tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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yield-promise-reject-next-catch.js (2405B)

      1 // |reftest| async
      2 // This file was procedurally generated from the following sources:
      3 // - src/async-generators/yield-promise-reject-next-catch.case
      4 // - src/async-generators/default/async-class-expr-private-method.template
      5 /*---
      6 description: yield Promise.reject(value) is treated as throw value (Async generator method as a ClassExpression element)
      7 esid: prod-AsyncGeneratorPrivateMethod
      8 features: [async-iteration, class-methods-private]
      9 flags: [generated, async]
     10 info: |
     11    ClassElement :
     12      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 
     25 
     26 var callCount = 0;
     27 
     28 var C = class {
     29    async *#gen() {
     30        callCount += 1;
     31        yield Promise.reject(error);
     32        yield "unreachable";
     33    }
     34    get gen() { return this.#gen; }
     35 }
     36 
     37 const c = new C();
     38 
     39 // Test the private fields do not appear as properties before set to value
     40 assert(
     41  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     42  "#gen does not appear as an own property on C prototype"
     43 );
     44 assert(
     45  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     46  "#gen does not appear as an own property on C constructor"
     47 );
     48 assert(
     49  !Object.prototype.hasOwnProperty.call(c, "#gen"),
     50  "#gen does not appear as an own property on C instance"
     51 );
     52 
     53 var iter = c.gen();
     54 
     55 iter.next().then(() => {
     56  throw new Test262Error("Promise incorrectly resolved.");
     57 }).catch(rejectValue => {
     58  // yield Promise.reject(error);
     59  assert.sameValue(rejectValue, error);
     60 
     61  iter.next().then(({done, value}) => {
     62    // iter is closed now.
     63    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
     64    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
     65  }).then($DONE, $DONE);
     66 });
     67 
     68 assert.sameValue(callCount, 1);
     69 
     70 // Test the private fields do not appear as properties after set to value
     71 assert(
     72  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
     73  "#gen does not appear as an own property on C prototype"
     74 );
     75 assert(
     76  !Object.prototype.hasOwnProperty.call(C, "#gen"),
     77  "#gen does not appear as an own property on C constructor"
     78 );
     79 assert(
     80  !Object.prototype.hasOwnProperty.call(c, "#gen"),
     81  "#gen does not appear as an own property on C instance"
     82 );