[SOUND] Hi there, I'm Chris and

I teach Java here at tree house.

What we're going to talk about today is a unit testing a web application that was

developed using the Spring Framework.

If you've spent time in our library you may have watched Craig talk about unit

testing with JUnit that's a great place to start if you're new to unit testing

In general, you'll want to unit test an application to ensure that it does indeed

do what you intend it to do.

You can use unit test to check for boundary cases or

special cases, as well as testing that normal functionality is working.

In general, if you aren't incorporating unit tests,

you haven't done your due diligence in creating reliable software.

As far as spring is concerned you may have also spent time with me learning

about the power of the spring framework in developing scalable web applications

in our library we've used the Model View Controller pattern

to nicely separate the functionality into distinct layers.

It is especially important when writing applications in bigger frameworks like

spring, that you incorporate unit tests to ensure as much as possible,

that your code is functioning as intended.

Fortunately, spring provides a whole testing library that allows you to test

each one of these layers and includes ways for

you to incorporate the mocking of parts that don't need to be present

in their full production forms for purposes of testing.

Marking simply means faking certain functionality.

During this workshop, we’ll discuss how to test controllers, views, services and

DAOs as well as incorporate the marking of objects that are being tested directly.

All right with that said let's get to it.