Devlopement testing using JPA + JUnit

After hours of fight i am able to run Unit tests using JPA

So this is how it goes.

I am using in memory DB
c3p0 is a ComboPooledDataSource more details here
and of course HSQLDB

persistence.xml

<persistence xmlns="http://java.sun.com/xml/ns/persistence"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/persistence

http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"

version="1.0">

<persistence-unit name="TestDB" transaction-type="RESOURCE_LOCAL">

<provider>org.hibernate.ejb.HibernatePersistence</provider>



<properties>

<property name="hibernate.hbm2ddl.auto" value="create"/>



<property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>

<property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver"/>

<property name="hibernate.connection.url" value="jdbc:hsqldb:mem:testdb"/>

<property name="hibernate.connection.username" value="sa"/>

<property name="hibernate.connection.password" value=""/>



<property name="hibernate.c3p0.min_size" value="5"/>

<property name="hibernate.c3p0.max_size" value="20"/>

<property name="hibernate.c3p0.timeout" value="300"/>

<property name="hibernate.c3p0.max_statements" value="50"/>

<property name="hibernate.c3p0.idle_test_period" value="3000"/>



</properties>

</persistence-unit>

</persistence>

Test class