Test migration to jest by hand

Apparently using regular expressions is way easier.

test/longestItem/longestItem.test.js

@@ -0,0 +1,9 @@
+const expect = require('expect');
+const longestItem = require('./longestItem.js');
+
+
+  test('longestItem is a Function', () => {
+  expect(longestItem).toBeInstanceOf(Function);
+});
+  t.deepEqual(longestItem('this', 'is', 'a', 'testcase'), 'testcase', "Returns the longest object");
+