13_palindromes: Add odd/even-length tests (#659)

Author: Sundwalltanner

foundations/13_palindromes/palindromes.spec.js

@@ -1,9 +1,12 @@
 const palindromes = require('./palindromes')
 
 describe('palindromes', () => {
-  test('detects palindrome', () => {
+  test('detects odd-length palindrome', () => {
     expect(palindromes('racecar')).toBe(true);
   });
+  test.skip('detects even-length palindrome', () => {
+    expect(palindromes('abba')).toBe(true);
+  });
   test.skip('detects palindrome with numbers', () => {
     expect(palindromes('rac3e3car')).toBe(true);
   });

foundations/13_palindromes/solution/palindromes-solution.spec.js

@@ -1,9 +1,12 @@
 const palindromes = require('./palindromes-solution');
 
 describe('palindromes', () => {
-  test('detects palindrome', () => {
+  test('detects odd-length palindrome', () => {
     expect(palindromes('racecar')).toBe(true);
   });
+  test('detects even-length palindrome', () => {
+    expect(palindromes('abba')).toBe(true);
+  });
   test('detects palindrome with numbers', () => {
     expect(palindromes('rac3e3car')).toBe(true);
   });