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From "James Carman" <>
Subject Re: JEUT Champion Recruitment
Date Fri, 16 May 2008 10:46:16 GMT
At that point, aren't you just testing that the ORM implementation
"works"?  Wouldn't it be better to make unit tests that test the
values of the annotations at runtime?  Stuff like:

1.  Make sure class X has the @Entity annotation.
2.  Make sure its "id" property has the @Id annotation.
3.  Make sure the getter for property "foo" has the @Basic annotation
marking it as required.
4.  Make sure the getter for property "foo" has the @Column annotation
making it saved in the "FOO" column with length 255

If you want to test that the data is actually getting to the database,
I'd argue that isn't really a unit test, but an "integration test."
Now to test queries you write, you'd probably want to use something
like HSQLDB to make sure you're getting back the correct data (load
some known test data before running tests of course).

On Fri, May 16, 2008 at 6:27 AM, Alexis Willemyns
<> wrote:
> On a technical note, the best solution is to explain you an example. As for
> every layer in an application, unit tests are welcome. This is too true for
> the entities mapped via JPA. So if you want to test an entity, you will
> create an unit test class (for example with JUnit). In this class, you will
> add some tests. For example, you will write a test that create an instance
> of the entity, set values, persist the entity, retrieve the entity, and
> check if the retrieved object is exactly the same as the persisted entity.
> It allows you to control that your annotations are matching the definition
> of the real table in the database. You can do extra tests: check the
> nullable attribute, the length attribute, the unique constraints, and so
> on... But if you want to test every aspect of your entity, you will write a
> big piece of code for each entity! If you have a model with 10, 20 or more
> entities, you see directly the quantity of work. JEUT is designed to
> automate for you the testing of an entity. You have just to create a test
> class that extends a specific JEUT test class and all the work is done for
> you. The framework uses the annotations discovered via reflection API or the
> XML files (orm.xml).
> Do you understand the goal of JEUT?
> 2008/5/15, Andrus Adamchik <>:
>> Hi Alexis,
>> I think it would really help if you started developing in the open using
>> one of the free open source sites. This would provide the project history to
>> a potential Champion, including access to the source code and general feel
>> of whether you are really interested in building community around your code.
>> On a technical note, what exactly does this framework test? Is this
>> regression testing (i.e. checking that the ORM schema matches the actual DB
>> schema), or is there a value beyond that? We had a similar framework
>> submitted to the Cayenne project some time back, and I could never
>> understand what exactly is being tested.
>> Andrus
>> On May 15, 2008, at 9:57 AM, Alexis Willemyns wrote:
>>> Hello all,
>>> I was a little bit hesitant before posting this project proposition. But
>>> let's go! I hope that this attempt will be a success.
>>> JEUT stands for "JPA Entity Unit Test" and is currently in development. So
>>> there is no public website and the code is ended up to 70%. JEUT is a
>>> testing framework for JPA entities and its main goal is to automate the
>>> test
>>> of entities without the need to write long and boring home tests.
>>> The mission is to provide a framework which is able to test the matching
>>> between entities using annotations and/or xml descriptors and the real
>>> database. A framework 100% compliant with all the existing annotations in
>>> JPA, for the current version 1 (and the future version 2... in the
>>> future).
>>> JEUT analyzes all the annotations and creates instances of entites with
>>> random values. It tries to persist these instances via the entity manager
>>> and reports the problems if existing. JEUT can be used as an extension of
>>> JUnit or TestNG, or maybe all others test frameworks.
>>> For the moment, the team is only composed with me, and I have discussed
>>> with
>>> my self about what is means to become an Apacha project. I am aware what
>>> are
>>> the conditions, responsabilities and impacts to become an Apache project.
>>> I
>>> am looking a Champion to go in the proposal phase (if the proposal makes
>>> sense) and to build a community around JEUT.
>>> Thank you for any feedback and recommendations (and sorry for my english
>>> coming from Belgium).
>>> I look forward to your responses.
>>> Regards,
>>> Alexis Willemyns
>>> JEUT project founder
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