b87b501161
* build: run eslint --fix * chore: manually fix all hasOwnProperty errors * chore: manually fix all void 0 vs undefined errors * chore: manually fix all async-in-promise errors * chore: manually fix lexical declaration in case block
68 lines
2.4 KiB
TypeScript
68 lines
2.4 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 { webContents, TopLevelWindow, WebContentsView } from 'electron'
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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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const web = (webContents as any).create({})
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w = new TopLevelWindow({ show: false })
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w.setContentView(new WebContentsView(web))
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})
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it('prevents adding same WebContents', () => {
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const web = (webContents as any).create({})
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w = new TopLevelWindow({ show: false })
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w.setContentView(new WebContentsView(web))
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expect(() => {
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w.setContentView(new WebContentsView(web))
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}).to.throw('The WebContents has already been added to a View')
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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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const web = (webContents as any).create({})
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// eslint-disable-next-line no-new
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new WebContentsView(web)
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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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