Test migration to jest by hand

Apparently using regular expressions is way easier.

test/hide/hide.js

@@ -0,0 +1,2 @@
+const hide = (...el) => [...el].forEach(e => (e.style.display = 'none'));
+module.exports = hide;

test/hide/hide.test.js

@@ -0,0 +1,10 @@
+const expect = require('expect');
+const hide = require('./hide.js');
+
+
+  test('hide is a Function', () => {
+  expect(hide).toBeInstanceOf(Function);
+});
+  t.pass('Tested by @chalarangelo on 16/02/2018');
+  
+