isPalindrome.test.js

import isPalindrome from '../isPalindrome';

describe('palindromeCheck', () => {
  it('should return whether or not the string is a palindrome', () => {
    expect(isPalindrome('a')).toBe(true);
    expect(isPalindrome('pop')).toBe(true);
    expect(isPalindrome('deed')).toBe(true);
    expect(isPalindrome('kayak')).toBe(true);
    expect(isPalindrome('racecar')).toBe(true);

    expect(isPalindrome('rad')).toBe(false);
    expect(isPalindrome('dodo')).toBe(false);
    expect(isPalindrome('polo')).toBe(false);
  });
});