node_modules/@jimp/js-bmp/src/index.test.ts

import { describe, expect, test } from "vitest";
import { createJimp } from "@jimp/core";
import { getTestImagePath } from "@jimp/test-utils";

import png from "@jimp/js-png";
import bmp from "./index.js";

const jimp = createJimp({ formats: [bmp, png] });

describe("BMP", () => {
  test("load BMP", async () => {
    const image = await jimp.read(getTestImagePath("windows95.bmp"));

    expect(image.getPixelColor(10, 10)).toBe(0xeff7f7ff);
    expect(image.getPixelColor(150, 80)).toBe(0x73add6ff);
    expect(image.getPixelColor(190, 200)).toBe(0xf7c300ff);
  });

  test("export BMP", async () => {
    const image = jimp.fromBitmap({
      width: 3,
      height: 3,
      data: [
        0xff0000ff, 0xff0080ff, 0xff00ffff, 0xff0080ff, 0xff00ffff, 0x8000ffff,
        0xff00ffff, 0x8000ffff, 0x0000ffff,
      ],
    });
    const buffer = await image.getBuffer("image/bmp");

    expect(buffer.toString()).toMatch(/^BM/);
  });
});