Test migration to jest by hand

Apparently using regular expressions is way easier.

test/debounce/debounce.test.js

@@ -1,9 +1,10 @@
 const expect = require('expect');
 const debounce = require('./debounce.js');
 
-test('Testing debounce', () => {
-  //For more information on all the methods supported by tape
-  //Please go to https://github.com/substack/tape
-  expect(typeof debounce === 'function').toBeTruthy();
-  debounce(() => {}, 250);
+
+  test('debounce is a Function', () => {
+  expect(debounce).toBeInstanceOf(Function);
 });
+  debounce(() => {t.pass('Works as expected');}, 250);
+  
+