async-gen-yield-star-getiter-async-not-callable-string-throw.js (1999B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-getiter-async-not-callable-string-throw.case 4 // - src/async-generators/default/async-obj-method.template 5 /*--- 6 description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (string) (Async generator method) 7 esid: prod-AsyncGeneratorMethod 8 features: [Symbol.iterator, Symbol.asyncIterator, async-iteration] 9 flags: [generated, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorMethod : 14 async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } 15 16 17 YieldExpression: yield * AssignmentExpression 18 19 1. Let exprRef be the result of evaluating AssignmentExpression. 20 2. Let value be ? GetValue(exprRef). 21 3. Let generatorKind be ! GetGeneratorKind(). 22 4. Let iterator be ? GetIterator(value, generatorKind). 23 ... 24 25 GetIterator ( obj [ , hint ] ) 26 27 ... 28 3. If hint is async, 29 a. Set method to ? GetMethod(obj, @@asyncIterator). 30 ... 31 32 GetMethod ( V, P ) 33 34 ... 35 2. Let func be ? GetV(V, P). 36 3. If func is either undefined or null, return undefined. 37 4. If IsCallable(func) is false, throw a TypeError exception. 38 ... 39 40 ---*/ 41 var obj = { 42 get [Symbol.iterator]() { 43 throw new Test262Error('it should not get Symbol.iterator'); 44 }, 45 [Symbol.asyncIterator]: '' 46 }; 47 48 49 var callCount = 0; 50 51 var gen = { 52 async *method() { 53 callCount += 1; 54 yield* obj; 55 throw new Test262Error('abrupt completion closes iter'); 56 57 } 58 }.method; 59 60 var iter = gen(); 61 62 iter.next().then(() => { 63 throw new Test262Error('Promise incorrectly fulfilled.'); 64 }, v => { 65 assert.sameValue(v.constructor, TypeError, "TypeError"); 66 67 iter.next().then(({ done, value }) => { 68 assert.sameValue(done, true, 'the iterator is completed'); 69 assert.sameValue(value, undefined, 'value is undefined'); 70 }).then($DONE, $DONE); 71 }).catch($DONE); 72 73 assert.sameValue(callCount, 1);