yield-star-next-not-callable-symbol-throw.js (1649B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-next-not-callable-symbol-throw.case 4 // - src/async-generators/default/async-declaration.template 5 /*--- 6 description: Not-callable next value in a yield star position - symbol (Async generator Function declaration) 7 esid: prod-AsyncGeneratorDeclaration 8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration] 9 flags: [generated, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorDeclaration: 14 async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { 15 AsyncGeneratorBody } 16 17 18 YieldExpression: yield * AssignmentExpression 19 ... 20 6. Repeat 21 a. If received.[[Type]] is normal, then 22 ii. Let innerResult be ? Invoke(iterator, "next", 23 « received.[[Value]] »). 24 ... 25 26 ---*/ 27 var obj = { 28 get [Symbol.iterator]() { 29 throw new Test262Error('it should not get Symbol.iterator'); 30 }, 31 [Symbol.asyncIterator]() { 32 return { 33 next: Symbol('oi') 34 }; 35 } 36 }; 37 38 39 40 var callCount = 0; 41 42 async function *gen() { 43 callCount += 1; 44 yield* obj; 45 throw new Test262Error('abrupt completion closes iter'); 46 47 } 48 49 var iter = gen(); 50 51 iter.next().then(() => { 52 throw new Test262Error('Promise incorrectly fulfilled.'); 53 }, v => { 54 assert.sameValue(v.constructor, TypeError, "TypeError"); 55 56 iter.next().then(({ done, value }) => { 57 assert.sameValue(done, true, 'the iterator is completed'); 58 assert.sameValue(value, undefined, 'value is undefined'); 59 }).then($DONE, $DONE); 60 }).catch($DONE); 61 62 assert.sameValue(callCount, 1);