chore: [tests] update some BrowserWindow tests
- manually close an existing windows before creating a new one. We have to do it because the `afterEach` hook doesn't get called if a test fails. - add some async/await goodies
This commit is contained in:
Aleksei Kuzmin
Jeremy Apthorp
parent
3094f62f0b
commit
ea16445be7
1 changed files with 54 additions and 46 deletions
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@ -1,7 +1,8 @@
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'use strict'
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const assert = require('assert')
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const {expect} = require('chai')
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const chai = require('chai')
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const dirtyChai = require('dirty-chai')
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const fs = require('fs')
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const path = require('path')
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const os = require('os')
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@ -13,10 +14,12 @@ const {ipcRenderer, remote, screen} = require('electron')
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const {app, ipcMain, BrowserWindow, BrowserView, protocol, session, webContents} = remote
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const features = process.atomBinding('features')
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const {expect} = chai
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const isCI = remote.getGlobal('isCi')
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const nativeModulesEnabled = remote.getGlobal('nativeModulesEnabled')
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chai.use(dirtyChai)
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describe('BrowserWindow module', () => {
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const fixtures = path.resolve(__dirname, 'fixtures')
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let w = null
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@ -24,6 +27,24 @@ describe('BrowserWindow module', () => {
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let server
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let postData
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const defaultOptions = {
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show: false,
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width: 400,
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height: 400,
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webPreferences: {
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backgroundThrottling: false
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}
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}
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const openTheWindow = async (options = defaultOptions) => {
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// The `afterEach` hook isn't called if a test fails,
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// we should make sure that the window is closed ourselves.
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await closeTheWindow()
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w = new BrowserWindow(options)
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return w
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}
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const closeTheWindow = function () {
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return closeWindow(w).then(() => { w = null })
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}
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@ -78,24 +99,13 @@ describe('BrowserWindow module', () => {
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server = null
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})
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beforeEach(() => {
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w = new BrowserWindow({
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show: false,
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width: 400,
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height: 400,
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webPreferences: {
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backgroundThrottling: false
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}
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})
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})
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beforeEach(openTheWindow)
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afterEach(closeTheWindow)
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describe('BrowserWindow constructor', () => {
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it('allows passing void 0 as the webContents', () => {
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w.close()
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w = null
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w = new BrowserWindow({
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openTheWindow({
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webContents: void 0
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})
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})
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@ -412,50 +422,48 @@ describe('BrowserWindow module', () => {
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})
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describe('BrowserWindow.capturePage(rect, callback)', () => {
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it('calls the callback with a Buffer', (done) => {
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w.capturePage({
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x: 0,
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y: 0,
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width: 100,
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height: 100
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}, (image) => {
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assert.equal(image.isEmpty(), true)
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done()
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it('calls the callback with a Buffer', async () => {
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const image = await new Promise((resolve) => {
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w.capturePage({
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x: 0,
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y: 0,
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width: 100,
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height: 100
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}, resolve)
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})
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expect(image.isEmpty()).to.be.true()
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})
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it('preserves transparency', (done) => {
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w.close()
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const width = 400
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const height = 400
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w = new BrowserWindow({
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it('preserves transparency', async () => {
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const w = await openTheWindow({
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show: false,
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width: width,
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height: height,
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width: 400,
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height: 400,
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transparent: true
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})
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w.loadURL('data:text/html,<html><body background-color: rgba(255,255,255,0)></body></html>')
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w.once('ready-to-show', () => {
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w.show()
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w.capturePage((image) => {
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let imgBuffer = image.toPNG()
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// Check 25th byte in the PNG
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// Values can be 0,2,3,4, or 6. We want 6, which is RGB + Alpha
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assert.equal(imgBuffer[25], 6)
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done()
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})
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})
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await emittedOnce(w, 'ready-to-show')
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w.show()
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const image = await new Promise((resolve) => w.capturePage(resolve))
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const imgBuffer = image.toPNG()
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// Check the 25th byte in the PNG.
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// Values can be 0,2,3,4, or 6. We want 6, which is RGB + Alpha
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expect(imgBuffer[25]).to.equal(6)
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})
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})
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describe('BrowserWindow.setSize(width, height)', () => {
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it('sets the window size', (done) => {
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it('sets the window size', async () => {
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const size = [300, 400]
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w.once('resize', () => {
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assertBoundsEqual(w.getSize(), size)
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done()
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})
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const resized = emittedOnce(w, 'resize')
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w.setSize(size[0], size[1])
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await resized
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assertBoundsEqual(w.getSize(), size)
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})
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})
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