electron/spec/api-native-image-spec.js

52 строки
2.0 KiB
JavaScript

'use strict'
const assert = require('assert')
const nativeImage = require('electron').nativeImage
const path = require('path')
describe('nativeImage module', () => {
describe('createFromPath(path)', () => {
it('returns an empty image for invalid paths', () => {
assert(nativeImage.createFromPath('').isEmpty())
assert(nativeImage.createFromPath('does-not-exist.png').isEmpty())
})
it('loads images from paths relative to the current working directory', () => {
const imagePath = `.${path.sep}${path.join('spec', 'fixtures', 'assets', 'logo.png')}`
const image = nativeImage.createFromPath(imagePath)
assert(!image.isEmpty())
assert.equal(image.getSize().height, 190)
assert.equal(image.getSize().width, 538)
})
it('loads images from paths with `.` segments', () => {
const imagePath = `${path.join(__dirname, 'fixtures')}${path.sep}.${path.sep}${path.join('assets', 'logo.png')}`
const image = nativeImage.createFromPath(imagePath)
assert(!image.isEmpty())
assert.equal(image.getSize().height, 190)
assert.equal(image.getSize().width, 538)
})
it('loads images from paths with `..` segments', () => {
const imagePath = `${path.join(__dirname, 'fixtures', 'api')}${path.sep}..${path.sep}${path.join('assets', 'logo.png')}`
const image = nativeImage.createFromPath(imagePath)
assert(!image.isEmpty())
assert.equal(image.getSize().height, 190)
assert.equal(image.getSize().width, 538)
})
it('Gets an NSImage pointer on macOS', () => {
if (process.platform !== 'darwin') return
const imagePath = `${path.join(__dirname, 'fixtures', 'api')}${path.sep}..${path.sep}${path.join('assets', 'logo.png')}`
const image = nativeImage.createFromPath(imagePath)
const nsimage = image.getNativeHandle()
assert.equal(nsimage.length, 8)
// If all bytes are null, that's Bad
assert.equal(nsimage.reduce((acc, x) => acc || (x !== 0), false), true)
})
})
})