merge: add test case and description (#842)

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)
+  })
+})