Test migration to jest by hand

Apparently using regular expressions is way easier.

test/maxN/maxN.js

@@ -0,0 +1,2 @@
+const maxN = (arr, n = 1) => [...arr].sort((a, b) => b - a).slice(0, n);
+module.exports = maxN;

test/maxN/maxN.test.js

@@ -0,0 +1,10 @@
+const expect = require('expect');
+const maxN = require('./maxN.js');
+
+
+  test('maxN is a Function', () => {
+  expect(maxN).toBeInstanceOf(Function);
+});
+  t.deepEqual(maxN([1, 2, 3]), [3], "Returns the n maximum elements from the provided array");
+  t.deepEqual(maxN([1, 2, 3], 2), [3, 2], "Returns the n maximum elements from the provided array");
+