import { log2 } from "../utils/number";
import { describe, it, expect } from "vitest";

describe("logarithm base-2", () => {
  describe("log2()", () => {
    it("should return the logarithm base-2 of a number", () => {
      expect(log2(4)).toBe(2);
      expect(log2(8)).toBe(3); // should be exact as it's an integer
      expect(log2(9)).toBeCloseTo(3.16992500144); // should be close to because it's a decimal value
    });
  });
});