Test migration to jest by hand

Apparently using regular expressions is way easier.

test/overArgs/overArgs.test.js

@@ -0,0 +1,13 @@
+const expect = require('expect');
+const overArgs = require('./overArgs.js');
+
+
+  test('overArgs is a Function', () => {
+  expect(overArgs).toBeInstanceOf(Function);
+});
+  const square = n => n * n;
+  const double = n => n * 2;
+  const fn = overArgs((x, y) => [x, y], [square, double]);
+  t.deepEqual(fn(9, 3), [81, 6], 'Invokes the provided function with its arguments transformed');
+  
+