import { describe, it, expect } from "vitest";
import areArraysOfNumbersEqual from "../are_arrays_of_numbers_equal";

describe("are_arrays_of_numbers_equal", () => {
  it("should return true for two empty arrays", () => {
    expect(areArraysOfNumbersEqual([], [])).toEqual(true);
    expect(areArraysOfNumbersEqual(new Uint8Array([]), [])).toEqual(true);
    expect(areArraysOfNumbersEqual(new Uint8Array([]), new Uint8Array([]))).toEqual(true);
    expect(areArraysOfNumbersEqual(new Uint8Array([]), [])).toEqual(true);
  });

  it("should return false when only one of the array is empty", () => {
    expect(areArraysOfNumbersEqual([0], [])).toEqual(false);
    expect(areArraysOfNumbersEqual([1], new Uint8Array([]))).toEqual(false);
    expect(areArraysOfNumbersEqual(new Uint8Array([1]), new Uint8Array([]))).toEqual(
      false,
    );
    expect(areArraysOfNumbersEqual(new Uint8Array([]), new Uint8Array([0]))).toEqual(
      false,
    );
    expect(areArraysOfNumbersEqual([], [0])).toEqual(false);
    expect(areArraysOfNumbersEqual([], [0, 1])).toEqual(false);
  });

  it("should return false if both arrays don't have the same length", () => {
    expect(areArraysOfNumbersEqual([0, 1], [1])).toEqual(false);
    expect(areArraysOfNumbersEqual([1, 2, 3], new Uint8Array([1, 2]))).toEqual(false);
    expect(areArraysOfNumbersEqual(new Uint8Array([1, 2, 3]), [1, 2])).toEqual(false);
    expect(
      areArraysOfNumbersEqual(new Uint8Array([1, 2, 3]), new Uint8Array([1, 2])),
    ).toEqual(false);
  });

  it("should return false if both arrays have the same length with different values", () => {
    expect(areArraysOfNumbersEqual([0, 1], [0, 4])).toEqual(false);
    expect(areArraysOfNumbersEqual([1, 2, 3], new Uint8Array([8, 2, 3]))).toEqual(false);
    expect(areArraysOfNumbersEqual(new Uint8Array([2, 2, 3]), [1, 2, 3])).toEqual(false);
    expect(
      areArraysOfNumbersEqual(new Uint8Array([2, 3]), new Uint8Array([2, 4])),
    ).toEqual(false);
  });

  it("should return true if both contain the same value in a different type", () => {
    expect(areArraysOfNumbersEqual([5, 4, 7], new Uint8Array([5, 4, 7]))).toEqual(true);
    expect(areArraysOfNumbersEqual(new Uint8Array([47, 68, 9]), [47, 68, 9])).toEqual(
      true,
    );
  });

  it("should return true if both contain the same value in the same type", () => {
    expect(areArraysOfNumbersEqual([45, 6985, 866, 856], [45, 6985, 866, 856])).toEqual(
      true,
    );
    expect(areArraysOfNumbersEqual([8], [8])).toEqual(true);
    expect(
      areArraysOfNumbersEqual(
        new Uint8Array([45, 6985, 866, 856]),
        new Uint8Array([45, 6985, 866, 856]),
      ),
    ).toEqual(true);
  });

  it("should return true if both are the same reference", () => {
    const arr = [909, 432432, 124213];
    const uint8Arr = new Uint8Array([23244, 35452, 54326, 867]);
    expect(areArraysOfNumbersEqual(arr, arr)).toEqual(true);
    expect(areArraysOfNumbersEqual(uint8Arr, uint8Arr)).toEqual(true);
  });
});