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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import {
test,
testPerm,
assert,
assertEquals,
createResolvable
} from "./test_util.ts";
test(async function workersBasic(): Promise<void> {
const promise = createResolvable();
const jsWorker = new Worker("../tests/subdir/test_worker.js", {
type: "module",
name: "jsWorker"
});
const tsWorker = new Worker("../tests/subdir/test_worker.ts", {
type: "module",
name: "tsWorker"
});
tsWorker.onmessage = (e): void => {
assertEquals(e.data, "Hello World");
promise.resolve();
};
jsWorker.onmessage = (e): void => {
assertEquals(e.data, "Hello World");
tsWorker.postMessage("Hello World");
};
jsWorker.onerror = (e: Event): void => {
e.preventDefault();
jsWorker.postMessage("Hello World");
};
jsWorker.postMessage("Hello World");
await promise;
});
test(async function nestedWorker(): Promise<void> {
const promise = createResolvable();
const nestedWorker = new Worker("../tests/subdir/nested_worker.js", {
type: "module",
name: "nested"
});
nestedWorker.onmessage = (e): void => {
assert(e.data.type !== "error");
promise.resolve();
};
nestedWorker.postMessage("Hello World");
await promise;
});
test(async function workerThrowsWhenExecuting(): Promise<void> {
const promise = createResolvable();
const throwingWorker = new Worker("../tests/subdir/throwing_worker.js", {
type: "module"
});
// eslint-disable-next-line @typescript-eslint/no-explicit-any
throwingWorker.onerror = (e: any): void => {
e.preventDefault();
assert(/Uncaught Error: Thrown error/.test(e.message));
promise.resolve();
};
await promise;
});
testPerm({ net: true }, async function workerCanUseFetch(): Promise<void> {
const promise = createResolvable();
const fetchingWorker = new Worker("../tests/subdir/fetching_worker.js", {
type: "module"
});
// eslint-disable-next-line @typescript-eslint/no-explicit-any
fetchingWorker.onerror = (e: any): void => {
e.preventDefault();
promise.reject(e.message);
};
fetchingWorker.onmessage = (e): void => {
assert(e.data === "Done!");
promise.resolve();
};
await promise;
});
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