yield-promise-reject-next-yield-star-sync-iterator.js (1446B)
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-decl-method.template 5 /*--- 6 description: yield * (async iterator) is treated as throw value (Async Generator method as a ClassDeclaration element) 7 esid: prod-AsyncGeneratorMethod 8 features: [async-iteration] 9 flags: [generated, async] 10 info: | 11 ClassElement : 12 MethodDefinition 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 class C { async *gen() { 33 callCount += 1; 34 yield * iterable; 35 }} 36 37 var gen = C.prototype.gen; 38 39 var iter = gen(); 40 41 iter.next().then(() => { 42 throw new Test262Error("Promise incorrectly resolved."); 43 }, rejectValue => { 44 // yield Promise.reject(error); 45 assert.sameValue(rejectValue, error); 46 47 iter.next().then(({done, value}) => { 48 // iter is closed now. 49 assert.sameValue(done, true, "The value of IteratorResult.done is `true`"); 50 assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`"); 51 }).then($DONE, $DONE); 52 }).catch($DONE); 53 54 assert.sameValue(callCount, 1);