yield-star-next-get-abrupt.js (1643B)
1 // |reftest| async 2 // This file was procedurally generated from the following sources: 3 // - src/async-generators/yield-star-next-get-abrupt.case 4 // - src/async-generators/default/async-declaration.template 5 /*--- 6 description: Abrupt completion while getting next (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 reason = {}; 28 var obj = { 29 get [Symbol.iterator]() { 30 throw new Test262Error('it should not get Symbol.iterator'); 31 }, 32 [Symbol.asyncIterator]() { 33 return { 34 get next() { 35 throw reason; 36 } 37 }; 38 } 39 }; 40 41 42 43 var callCount = 0; 44 45 async function *gen() { 46 callCount += 1; 47 yield* obj; 48 throw new Test262Error('abrupt completion closes iter'); 49 50 } 51 52 var iter = gen(); 53 54 iter.next().then(() => { 55 throw new Test262Error('Promise incorrectly fulfilled.'); 56 }, v => { 57 assert.sameValue(v, reason, "reject reason"); 58 59 iter.next().then(({ done, value }) => { 60 assert.sameValue(done, true, 'the iterator is completed'); 61 assert.sameValue(value, undefined, 'value is undefined'); 62 }).then($DONE, $DONE); 63 }).catch($DONE); 64 65 assert.sameValue(callCount, 1);