feat #10: write tests for KeyFinder.js

Test for invalid input, entcrypted input, random input.

Ciphers/test/KeyFinder.test.js

@@ -0,0 +1,20 @@
+import { keyFinder } from '../KeyFinder.js'
+
+describe('Testing keyFinder function', () => {
+ it('Test - 1, Testing for invalid types', () => {
+ expect(() => keyFinder(-1)).toThrow()
+ })
+
+ it('Test - 2, Testing for encrypted input', () => {
+ // expect(keyFinder("Rfkkjwi, oekh xcdktgizoutz, tge zqyv.")).toBe(20)
+ expect(keyFinder('L fdph, L vdz, L frqtxhuhg.')).toBe(23)
+ expect(keyFinder('Lzwespj pfl zljyla pz uvwlxlyepl.')).toBe(19)
+ expect(keyFinder('Oy zmk zmciaxu kgixz.')).toBe(20)
+ })
+
+ it('Test - 3, Testing for random input', () => {
+ // expect(keyFinder("Rfkkjwi, oekh xcdktgizoutz, tge zqyv.")).toBe(20)
+ expect(keyFinder('aaaa')).toBe(0)
+ expect(keyFinder('bcde')).toBe(0)
+ })
+})