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Thursday Jul 26, 2012

Mocking Without Interfaces [Screencast]

There is a common misconception about mandatory interfaces for easy unit testing and mocking. This myth causes a lot of plumbing in Java EE projects. This screencast shows how to mock classes directly--without any interfaces:

See also other screencasts at: http://tv.adam-bien.com or subscribe to http://www.youtube.com/user/bienadam.

Posted at 05:04PM Jul 26, 2012 by Adam Bien in Real World Java EE Patterns - Rethinking Best Practices |  Comments[1]  | Views/Hits: 4465


NEW Java EE 7 Workshops: July 22nd-26th, 2013, Airport Munich

A book about rethinking Java EE Patterns

Comments:

I use Mockite since 1 year now and I am very happy with it. Unfortunately Mockito cannot mock final classes and methods. Powermock is supposed to be able to mock final classes and methods but I did not try it out yet so I do not know if it has any additional drawbacks.

Posted by Christian on July 27, 2012 at 10:00 AM CEST #

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...the last 10 comments

Tim Boudreau wrote:

Well, Adam, you almost make me want to use Java EE.

Almost.

My first day at NetBeans in 1999 was being handed a HUGE book on EJ[...]

orhan wrote:

this is the correct way to virtualize webapplications http://www.waratek.com/blog/june-2013/open-source-api-for-java-virtualization

now [...]

Martin Andersson wrote:

Adam, appreciate your work. But I feel that all Oracle people has left out the important part: How to package a JavaFX application in an EAR packa[...]

Markus wrote:

If rest services are used it is more comfortable to write a servlet filter and catch/map these exceptions there.

Imho more readable and [...]

Adam Bien wrote:

@Jonny,

your comment is a perfect summary: "Automatic recovery strategies are only viable for entirely disjoint datasets." In s[...]

Jonny Newald wrote:

Totally agreeing.

My simplistic case is a "self made" concurrency issue: two Threads are updating the same entity accidently tr[...]

Adam Bien wrote:

@Jonny,

thanks for your comment! I answered it with a new post: http://www.adam-bien.com/roller/abien/entry/why_it_is_impossible_to

[...]

Jonny Newald wrote:

Interesting and pragmatic approach, but what about a generic retry mechanism? I think it's legal to handle OptimisticLockException just by giving[...]

Fábio Preti wrote:

Hi,

I have a big problem to solve and i expect that you could help.

I need to run a Timer Service like this on a cluster, with [...]

Adam Bien wrote:

@Marcus,

In the first build I usually create a WAR which is going to be reused in all downstream jobs.

JavaEE 6+7 apps tend to [...]

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