зеркало из https://github.com/electron/electron.git
58 строки
2.0 KiB
TypeScript
58 строки
2.0 KiB
TypeScript
import { expect } from 'chai';
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import * as ChildProcess from 'child_process';
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import * as path from 'path';
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import { emittedOnce } from './events-helpers';
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import { closeWindow } from './window-helpers';
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import { TopLevelWindow, WebContentsView } from 'electron/main';
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describe('WebContentsView', () => {
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let w: TopLevelWindow;
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afterEach(() => closeWindow(w as any).then(() => { w = null as unknown as TopLevelWindow; }));
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it('can be used as content view', () => {
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w = new TopLevelWindow({ show: false });
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w.setContentView(new WebContentsView({}));
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});
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describe('new WebContentsView()', () => {
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it('does not crash on exit', async () => {
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const appPath = path.join(__dirname, 'fixtures', 'api', 'leak-exit-webcontentsview.js');
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const electronPath = process.execPath;
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const appProcess = ChildProcess.spawn(electronPath, ['--enable-logging', appPath]);
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let output = '';
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appProcess.stdout.on('data', data => { output += data; });
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appProcess.stderr.on('data', data => { output += data; });
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const [code] = await emittedOnce(appProcess, 'exit');
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if (code !== 0) {
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console.log(code, output);
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}
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expect(code).to.equal(0);
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});
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});
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function triggerGCByAllocation () {
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const arr = [];
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for (let i = 0; i < 1000000; i++) {
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arr.push([]);
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}
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return arr;
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}
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it('doesn\'t crash when GCed during allocation', (done) => {
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// eslint-disable-next-line no-new
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new WebContentsView({});
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setTimeout(() => {
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// NB. the crash we're testing for is the lack of a current `v8::Context`
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// when emitting an event in WebContents's destructor. V8 is inconsistent
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// about whether or not there's a current context during garbage
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// collection, and it seems that `v8Util.requestGarbageCollectionForTesting`
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// causes a GC in which there _is_ a current context, so the crash isn't
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// triggered. Thus, we force a GC by other means: namely, by allocating a
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// bunch of stuff.
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triggerGCByAllocation();
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done();
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});
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});
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});
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