import { BigNumber } from "ethers";
import { tinyBig } from "./tinyBig";

describe("tiny-big", () => {
  it("allows hex string input", () => {
    expect(tinyBig("0xa").toString()).toBe("10");
    expect(tinyBig("10").toString()).toBe("10");
  });
  it("performs toHexString properly", () => {
    expect(tinyBig(0).toHexString()).toBe("0x0");
    expect(tinyBig(1).toHexString()).toBe("0x1");
    expect(tinyBig(15).toHexString()).toBe("0xf");
    expect(tinyBig(16).toHexString()).toBe("0x10");
  });
  it("performs twosComplement", () => {
    const inputs = [
      { num: -3, bitCount: 3 },
      { num: 0, bitCount: 3 },
      { num: 3, bitCount: 3 },
    ];
    inputs.forEach(({ num, bitCount }) => {
      expect(tinyBig(num).toTwos(bitCount).toString()).toBe(
        BigNumber.from(num).toTwos(bitCount).toString()
      );
    });
  });
});