import {expect} from "chai";
import {toGraffitiBuffer} from "../../../src/util/graffiti.js";

describe("Graffiti helper", () => {
  describe("toGraffitiBuffer", () => {
    const cases: {input: string; result: string}[] = [
      {
        // Pad short strings with zeros
        input: "chainsafe/lodestar",
        result: "636861696e736166652f6c6f6465737461720000000000000000000000000000",
      },
      {
        // Empty strings should become a zero hash
        input: "",
        result: "0000000000000000000000000000000000000000000000000000000000000000",
      },
      {
        // Really long string that should be cropped
        input: "a".repeat(96),
        result: "6161616161616161616161616161616161616161616161616161616161616161",
      },
    ];
    for (const {input, result} of cases) {
      it(`Convert graffiti UTF8 ${input} to Buffer`, () => {
        expect(toGraffitiBuffer(input).toString("hex")).to.equal(result);
      });
    }
  });
});