druppert-palindrome/test/test.js

Palindrome detector

let assert = require("assert");
let Phrase = require("../index.js");

describe("Phrase", function() {
	describe("#palindrome", function() {

		it("should return false for a non-palindrome", function() {
			let nonPalindrome = new Phrase("apple");
			assert(!nonPalindrome.palindrome());
		})

		it("should return true for a plain palindrome", function() {
			let plainPalindrome = new Phrase("racecar");
			assert(plainPalindrome.palindrome());
		})

		it("should return true for a mixed-case palindrome", function() {
			let mixedCasePalindrome = new Phrase("RaceCar");
			assert(mixedCasePalindrome.palindrome());
		})

		it("should return true for a palindrome with punctuation", function() {
			let punctuatedPalindrome = new Phrase("Madam, I'm Adam.");
			assert(punctuatedPalindrome.palindrome());
		})

		describe("#letters", function() {
			it("should return only letters", function() {
				let punctuatedPalindrome = new Phrase("Madam, I'm Adam");
				assert.strictEqual(punctuatedPalindrome.letters(), "MadamImAdam");
			})
		})

	})
})