index.test.ts

import fs from "fs";
import path from "path";
import { rollup } from "rollup";
import purgecss from "./../src/";

describe("rollup-plugin-purgecss", () => {
  it("remove unused css", async () => {
    const bundle = await rollup({
      input: path.resolve(__dirname, "fixtures/basic/index.js"),
      plugins: [
        purgecss({
          content: [path.resolve(__dirname, "assets/test_a.html")],
          output: path.resolve(__dirname, "assets/actual_a.css"),
        }),
      ],
    });
    await bundle.generate({ format: "cjs", exports: "auto" });

    const actualA = fs
      .readFileSync(path.resolve(__dirname, "assets/actual_a.css"))
      .toString();
    const expectA = fs
      .readFileSync(path.resolve(__dirname, "assets/expect_a.css"))
      .toString();
    expect(actualA).toEqual(expectA);
  });
});