electron/spec/api-native-image-spec.js
2016-03-16 12:42:23 -07:00

51 lines
2 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 OS X', () => {
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);
});
});
});