From 4e7a15694bd400e032330dad781bb9ae5e504773 Mon Sep 17 00:00:00 2001
From: YATIN KATHURIA <47096348+Yatin-kathuria@users.noreply.github.com>
Date: Mon, 22 Nov 2021 22:23:48 +0530
Subject: [PATCH] merge: add test case and description (#842)

---
 Dynamic-Programming/ClimbingStairs.js         | 11 +++++++----
 .../tests/ClimbingStairs.test.js              | 19 +++++++++++++++++++
 2 files changed, 26 insertions(+), 4 deletions(-)
 create mode 100644 Dynamic-Programming/tests/ClimbingStairs.test.js

diff --git a/Dynamic-Programming/ClimbingStairs.js b/Dynamic-Programming/ClimbingStairs.js
index e89409e1e..dccc0c4db 100644
--- a/Dynamic-Programming/ClimbingStairs.js
+++ b/Dynamic-Programming/ClimbingStairs.js
@@ -1,7 +1,10 @@
-/*
- * You are climbing a stair case. It takes n steps to reach to the top.
- * Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
-*/
+/**
+ * @function ClimbStairs
+ * @description You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
+ * @param {Integer} n - The input integer
+ * @return {Integer} distinct ways can you climb to the top.
+ * @see [Climb_Stairs](https://www.geeksforgeeks.org/count-ways-reach-nth-stair/)
+ */
 
 const climbStairs = (n) => {
   let prev = 0
diff --git a/Dynamic-Programming/tests/ClimbingStairs.test.js b/Dynamic-Programming/tests/ClimbingStairs.test.js
new file mode 100644
index 000000000..382c32b54
--- /dev/null
+++ b/Dynamic-Programming/tests/ClimbingStairs.test.js
@@ -0,0 +1,19 @@
+import { climbStairs } from '../ClimbingStairs'
+
+describe('ClimbingStairs', () => {
+  it('climbStairs of 0', () => {
+    expect(climbStairs(0)).toBe(1)
+  })
+
+  it('climbStairs of 1', () => {
+    expect(climbStairs(1)).toBe(1)
+  })
+
+  it('climbStairs of 10', () => {
+    expect(climbStairs(10)).toBe(89)
+  })
+
+  it('climbStairs of 15', () => {
+    expect(climbStairs(15)).toBe(987)
+  })
+})