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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
// Tests errors are handled properly by the DevToolsWorker.
const { DevToolsWorker } = ChromeUtils.importESModule(
"resource://devtools/shared/worker/worker.sys.mjs"
);
const blob = new Blob(
[
`
importScripts("resource://gre/modules/workers/require.js");
const { createTask } = require("resource://devtools/shared/worker/helper.js");
createTask(self, "myTask", function({
shouldThrow,
} = {}) {
if (shouldThrow) {
throw new Error("err");
}
return "OK";
});
`,
],
{ type: "application/javascript" }
);
add_task(async function () {
try {
ok(false, "Creating a DevToolsWorker with an invalid URL throws");
} catch (e) {
ok(true, "Creating a DevToolsWorker with an invalid URL throws");
}
const WORKER_URL = URL.createObjectURL(blob);
const worker = new DevToolsWorker(WORKER_URL);
try {
await worker.performTask("myTask", { shouldThrow: true });
ok(
false,
"DevToolsWorker returns a rejected promise when an error occurs in the worker"
);
} catch (e) {
ok(
true,
"DevToolsWorker returns a rejected promise when an error occurs in the worker"
);
}
try {
await worker.performTask("not a real task");
ok(
false,
"DevToolsWorker returns a rejected promise when task does not exist"
);
} catch (e) {
ok(
true,
"DevToolsWorker returns a rejected promise when task does not exist"
);
}
worker.destroy();
try {
await worker.performTask("myTask");
ok(
false,
"DevToolsWorker rejects when performing a task on a destroyed worker"
);
} catch (e) {
ok(
true,
"DevToolsWorker rejects when performing a task on a destroyed worker"
);
}
URL.revokeObjectURL(WORKER_URL);
});