electron/spec/api-web-contents-view-spec.ts
Milan Burda 4bc6b15f53
refactor: move spec helpers to spec/lib (#37010)
Co-authored-by: Milan Burda <miburda@microsoft.com>
2023-01-25 13:01:25 -08:00

37 lines
1.2 KiB
TypeScript

import { closeWindow } from './lib/window-helpers';
import { BaseWindow, WebContentsView } from 'electron/main';
describe('WebContentsView', () => {
let w: BaseWindow;
afterEach(() => closeWindow(w as any).then(() => { w = null as unknown as BaseWindow; }));
it('can be used as content view', () => {
w = new BaseWindow({ show: false });
w.setContentView(new WebContentsView({}));
});
function triggerGCByAllocation () {
const arr = [];
for (let i = 0; i < 1000000; i++) {
arr.push([]);
}
return arr;
}
it('doesn\'t crash when GCed during allocation', (done) => {
// eslint-disable-next-line no-new
new WebContentsView({});
setTimeout(() => {
// NB. the crash we're testing for is the lack of a current `v8::Context`
// when emitting an event in WebContents's destructor. V8 is inconsistent
// about whether or not there's a current context during garbage
// collection, and it seems that `v8Util.requestGarbageCollectionForTesting`
// causes a GC in which there _is_ a current context, so the crash isn't
// triggered. Thus, we force a GC by other means: namely, by allocating a
// bunch of stuff.
triggerGCByAllocation();
done();
});
});
});