suppressed-error-handling-with-await-using-and-async-generator.js (1901B)
1 // |jit-test| skip-if: !getBuildConfiguration("explicit-resource-management"); --enable-explicit-resource-management 2 3 load(libdir + "asserts.js"); 4 5 { 6 const values = []; 7 const errorsToThrow = [new Error("test1"), new Error("test2")]; 8 async function* gen() { 9 await using d = { 10 value: "d", 11 [Symbol.asyncDispose]() { 12 values.push(this.value); 13 } 14 } 15 yield await Promise.resolve("a"); 16 yield await Promise.resolve("b"); 17 await using c = { 18 value: "c", 19 [Symbol.asyncDispose]() { 20 values.push(this.value); 21 throw errorsToThrow[0]; // This error will suppress the error thrown below. 22 } 23 } 24 throw errorsToThrow[1]; // This error will be suppressed during disposal. 25 } 26 27 async function testDisposeWithThrowAndPendingException() { 28 let x = gen(); 29 values.push((await x.next()).value); 30 values.push((await x.next()).value); 31 await x.next(); 32 } 33 let e = null; 34 testDisposeWithThrowAndPendingException().catch((err) => { e = err; }); 35 drainJobQueue(); 36 assertSuppressionChain(() => { throw e; }, errorsToThrow); 37 assertArrayEq(values, ["a", "b", "c", "d"]); 38 } 39 40 { 41 const values = []; 42 const errorsToThrow = [new Error("test1"), new Error("test2")]; 43 async function* gen() { 44 await using c = { 45 value: "c", 46 [Symbol.asyncDispose]() { 47 values.push(this.value); 48 throw errorsToThrow[0]; 49 } 50 } 51 yield await Promise.resolve("a"); 52 yield await Promise.resolve("b"); 53 return; 54 } 55 async function testDisposeWithThrowAndForcedThrowInAsyncGenerator() { 56 let x = gen(); 57 values.push((await x.next()).value); 58 await x.throw(errorsToThrow[1]); 59 } 60 let e = null; 61 testDisposeWithThrowAndForcedThrowInAsyncGenerator().catch((err) => { e = err; }); 62 drainJobQueue(); 63 assertSuppressionChain(() => { throw e; }, errorsToThrow); 64 assertArrayEq(values, ["a", "c"]); 65 }