yield-promise-reject-next-catch.js (1275B)
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-expression.template 5 /*--- 6 description: yield Promise.reject(value) is treated as throw value (Unnamed async generator expression) 7 esid: prod-AsyncGeneratorExpression 8 features: [async-iteration] 9 flags: [generated, async] 10 info: | 11 Async Generator Function Definitions 12 13 AsyncGeneratorExpression : 14 async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { 15 AsyncGeneratorBody } 16 17 ---*/ 18 let error = new Error(); 19 20 21 var callCount = 0; 22 23 var gen = async function *() { 24 callCount += 1; 25 yield Promise.reject(error); 26 yield "unreachable"; 27 }; 28 29 var iter = gen(); 30 31 iter.next().then(() => { 32 throw new Test262Error("Promise incorrectly resolved."); 33 }).catch(rejectValue => { 34 // yield Promise.reject(error); 35 assert.sameValue(rejectValue, error); 36 37 iter.next().then(({done, value}) => { 38 // iter is closed now. 39 assert.sameValue(done, true, "The value of IteratorResult.done is `true`"); 40 assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`"); 41 }).then($DONE, $DONE); 42 }); 43 44 assert.sameValue(callCount, 1);