Test migration to jest by hand

Apparently using regular expressions is way easier.

test/pick/pick.js

@@ -0,0 +1,3 @@
+const pick = (obj, arr) =>
+arr.reduce((acc, curr) => (curr in obj && (acc[curr] = obj[curr]), acc), {
+module.exports = pick;

test/pick/pick.test.js

@@ -0,0 +1,9 @@
+const expect = require('expect');
+const pick = require('./pick.js');
+
+
+  test('pick is a Function', () => {
+  expect(pick).toBeInstanceOf(Function);
+});
+  t.deepEqual(pick({ a: 1, b: '2', c: 3 }, ['a', 'c']), { 'a': 1, 'c': 3 }, "Picks the key-value pairs corresponding to the given keys from an object.");
+