png.test.js
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import { Jimp, getTestDir } from '@jimp/test-utils';
import configure from '@jimp/custom';
import png from '../src';
const jimp = configure({ types: [png] }, Jimp);
describe('PNG', () => {
const imagesDir = getTestDir(__dirname) + '/images';
it('load PNG', async () => {
const image = await jimp.read(imagesDir + '/dice.png');
image.getPixelColor(10, 10).should.be.equal(0x00000000);
image.getPixelColor(160, 80).should.be.equal(0x1c1cd4ff);
image.getPixelColor(400, 250).should.be.equal(0x7e0c0cda);
});
it('export PNG', async () => {
const jgd = await jimp.read({
width: 3,
height: 3,
data: [
0xff0000ff,
0xff0080ff,
0xff00ffff,
0xff0080ff,
0xff00ffff,
0x8000ffff,
0xff00ffff,
0x8000ffff,
0x0000ffff
]
});
const buffer = await jgd.getBufferAsync('image/png');
buffer.toString().should.match(/^.PNG\r\n/);
});
it('should use png options', async () => {
const jgd = await jimp.read({
width: 20,
height: 20,
data: [
0xff0000ff,
0xff0080ff,
0xff00ffff,
0xff0080ff,
0xff00ffff,
0x8000ffff,
0xff00ffff,
0x8000ffff,
0x0000ffff,
0xff0000ff,
0xff0080ff,
0xff00ffff,
0xff0080ff,
0xff00ffff,
0x8000ffff,
0xff00ffff,
0x8000ffff,
0x0000ffff,
0xff0000ff,
0xff0080ff,
0xff00ffff,
0xff0080ff,
0xff00ffff,
0x8000ffff,
0xff00ffff,
0x8000ffff,
0x0000ffff,
0xff0000ff,
0xff0080ff,
0xff00ffff,
0xff0080ff,
0xff00ffff,
0x8000ffff,
0xff00ffff,
0x8000ffff,
0x0000ffff
]
});
const image = await jgd
.deflateStrategy(0)
.colorType(0)
.getBufferAsync(Jimp.MIME_PNG);
const expected = await jimp.read(imagesDir + '/options.png');
const expectedBuffer = await expected
.deflateStrategy(0)
.colorType(0)
.getBufferAsync(Jimp.MIME_PNG);
image.should.be.deepEqual(expectedBuffer);
});
});