Added test cases for LongestPalindromicSubsequence

Dynamic-Programming/tests/LongestPalindromicSubsequence.test.js

@@ -0,0 +1,19 @@
+import { longestPalindromeSubsequence } from '../LongestPalindromicSubsequence'
+
+describe('LongestPalindromicSubsequence', () => {
+  it('expects to return 0 as longest pallindromic subsequence', () => {
+    expect(longestPalindromeSubsequence('abcdefgh')).toBe(1)
+  })
+
+  it('expects to return 4 as longest pallindromic subsequence', () => {
+    expect(longestPalindromeSubsequence('bbbab')).toBe(4)
+  })
+
+  it('expects to return 2 as longest pallindromic subsequence', () => {
+    expect(longestPalindromeSubsequence('cbbd')).toBe(2)
+  })
+
+  it('expects to return 7 as longest pallindromic subsequence', () => {
+    expect(longestPalindromeSubsequence('racexyzcxar')).toBe(7)
+  })
+})