Test migration to jest by hand

Apparently using regular expressions is way easier.

test/digitize/digitize.test.js

@@ -0,0 +1,9 @@
+const expect = require('expect');
+const digitize = require('./digitize.js');
+
+
+  test('digitize is a Function', () => {
+  expect(digitize).toBeInstanceOf(Function);
+});
+  t.deepEqual(digitize(123), [1, 2, 3], "Converts a number to an array of digits");
+