0217_contains_duplicate.test.js

import { describe, test, expect } from '@jest/globals';
import containsDuplicate from '../js_solutions/0217_contains_duplicate.js';

describe('Testing "containsDuplicate" function', () => {
  test('Testing overall perfomance', () => {
    // Should return true or false depending on duplicate presence
    expect(containsDuplicate([1, 2, 3, 1])).toBeTruthy();
    expect(containsDuplicate([1, 2, 3, 4])).toBeFalsy();
    expect(containsDuplicate([1, 1, 1, 3, 3, 4, 3, 2, 4, 2])).toBeTruthy();
  });
});