Migrate doctest for ReverseString.js

Author: defaude

String/ReverseWords.js

@@ -1,19 +1,3 @@
-/*
-*  Doctests
-*
-* > reverseWords('I Love JS')
-*  'JS Love I'
-* > reverseWords('Hello World')
-*  'World Hello'
-* > reverseWords('The Algorithms Javascript')
-*  'Javascript Algorithms The'
-* > reverseWords([])
-*  ! TypeError
-* > reverseWords({})
-*  ! TypeError
-* > reverseWords(null)
-*  ! TypeError
-*/
 const reverseWords = (str) => {
   if (typeof str !== 'string') {
     throw new TypeError('The given value is not a string')

String/test/ReverseWords.test.js

@@ -2,14 +2,17 @@ import { reverseWords } from '../ReverseWords'
 
 describe('reverseWords', () => {
   it('expects to reverse words to return a joined word', () => {
-    const SUT = reverseWords('I Love JS')
-    expect(SUT).toBe('JS Love I')
+    expect(reverseWords('I Love JS')).toBe('JS Love I')
+    expect(reverseWords('Hello World')).toBe('World Hello')
+    expect(reverseWords('The Algorithms Javascript')).toBe('Javascript Algorithms The')
   })
+
   it.each`
     input
     ${123456}
     ${[1, 2, 3, 4, 5, 6]}
     ${{ test: 'test' }}
+    ${null}
   `(
     'expects to throw a type error given a value that is $input',
     ({ input }) => {