// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* A helper class to initialize virtual time and load a worker.
*/
(class WorkerVirtualTimeHelper {
constructor(testRunner, session) {
this.testRunner_ = testRunner;
this.session_ = session;
this.dp_ = session.protocol;
}
async createFetcher_() {
const FetchHelper = await this.testRunner_.loadScriptAbsolute(
'../fetch/resources/fetch-test.js');
// Note we can't just use testRunner.browserP() since that session
// is in a discovery-only mode, so re-attach.
const { result: { sessionId } } =
await this.testRunner_.browserP().Target.attachToBrowserTarget({});
const { protocol: bp } = new TestRunner.Session(testRunner, sessionId);
const fetcher = new FetchHelper(this.testRunner_, bp);
await fetcher.enable();
return {fetcher, FetchHelper};
}
async loadWorker(content) {
const {fetcher, FetchHelper} = await this.createFetcher_();
fetcher.onceRequest('http://test.com/index.html').fulfill(
FetchHelper.makeContentResponse(`
<html>
<script>
window.onload = function() {
window.worker = new Worker('/worker.js')
};
</script>
</html>
`));
fetcher.onceRequest('http://test.com/worker.js').fulfill(
FetchHelper.makeContentResponse(content));
await this.dp_.Emulation.setVirtualTimePolicy({
policy: 'pause',
initialVirtualTime: 100
});
await this.dp_.Page.navigate({url: 'http://test.com/index.html'});
await this.dp_.Emulation.setVirtualTimePolicy({
policy: 'pauseIfNetworkFetchesPending',
budget: 1000});
this.dp_.Target.setAutoAttach({
autoAttach: true, waitForDebuggerOnStart: true, flatten: true});
const attached = (await this.dp_.Target.onceAttachedToTarget()).params;
const wp = this.session_.createChild(attached.sessionId).protocol;
return { wp, fetcher, FetchHelper };
}
})
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