import { expect, test, describe } from "vitest";
import { createJimp } from "@jimp/core";
import jpeg from "@jimp/js-jpeg";
import png from "@jimp/js-png";
import "@jimp/test-utils/image-snapshot";
import { getTestImagePath } from "@jimp/test-utils";
import * as blit from "./index.js";
const Jimp = createJimp({ formats: [jpeg, png], plugins: [blit.methods] });
describe("Blit over image", function () {
test("blit alpha", async () => {
const dice = await Jimp.read(getTestImagePath("dice.png"));
const image = await Jimp.read(getTestImagePath("cops.jpg"));
const output = await image.blit({ src: dice }).getBuffer("image/png");
expect(output).toMatchImageSnapshot();
});
async function createCat(catNum: number, len: number) {
const imgHeight = 60;
const butt = await Jimp.read(__dirname + "/images/cat_butt.png");
const head = await Jimp.read(__dirname + "/images/cat_head.png");
const fuzz = await Jimp.read(__dirname + "/images/cat_fuzz.png");
let longCat = len;
longCat = longCat > 20 ? 20 : longCat;
longCat = longCat <= 1 ? 1 : longCat;
const cat =
Math.floor(catNum * (head.bitmap.height / imgHeight)) * imgHeight;
const newImage = new Jimp({
width:
butt.bitmap.width + head.bitmap.width + fuzz.bitmap.width * longCat,
height: imgHeight,
color: 0x00000000,
});
newImage.blit({
src: butt,
x: 0,
y: 0,
srcX: 0,
srcY: cat,
srcW: butt.bitmap.width,
srcH: imgHeight,
});
for (let i = 0; i < longCat; i++) {
newImage.blit({
src: fuzz,
x: butt.bitmap.width + fuzz.bitmap.width * i,
y: 0,
srcX: 0,
srcY: cat,
srcW: fuzz.bitmap.width,
srcH: imgHeight,
});
}
newImage.blit({
src: head,
x: butt.bitmap.width + fuzz.bitmap.width * longCat,
y: 0,
srcX: 0,
srcY: cat,
srcW: head.bitmap.width,
srcH: imgHeight,
});
return newImage;
}
test("uses src params correctly", async () => {
const small = await createCat(0.3, 1);
expect(await small.getBuffer("image/png")).toMatchImageSnapshot();
const medium = await createCat(0.6, 7);
expect(await medium.getBuffer("image/png")).toMatchImageSnapshot();
const large = await createCat(0.9, 20);
expect(await large.getBuffer("image/png")).toMatchImageSnapshot();
});
});
