Test migration to jest by hand

Apparently using regular expressions is way easier.

test/atob/atob.test.js

@@ -1,10 +1,15 @@
 const expect = require('expect');
 const atob = require('./atob.js');
 
-test('Testing atob', () => {
-  //For more information on all the methods supported by tape
-  //Please go to https://github.com/substack/tape
-  expect(typeof atob === 'function').toBeTruthy();
-  expect(atob('Zm9vYmFy')).toBe('foobar');
-  expect(atob('Z')).toBe('');
+
+  test('atob is a Function', () => {
+  expect(atob).toBeInstanceOf(Function);
 });
+  test('atob("Zm9vYmFy") equals "foobar"', () => {
+  expect(atob('Zm9vYmFy'), 'foobar').toBe()
+});
+  test('atob("Z") returns ""', () => {
+  expect(atob('Z'), '').toBe()
+});
+  
+