python-archieve-projects/WechatBot/node_modules/@jimp/png/test/png.test.js

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JavaScript
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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);
});
});