= Configuring Containers in Tests
:index-group: Testing Techniques
:jbake-date: 2018-12-05
:jbake-type: page
:jbake-status: published

Like Resources, Containers
can also be declared via InitialContext properties as well. The most
useful is to declare a Stateful SessionBean container so that it's
guaranteed to passivate and activate on each call to the bean, allowing
you to test your callbacks behave as you need them to.

[source,java]
----
Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.core.LocalInitialContextFactory");

p.put("myStatefulContainer", "new://Container?type=STATEFUL");
p.put("myStatefulContainer.PoolSize", "0");
p.put("myStatefulContainer.BulkPassivate", "1");

Context context = new InitialContext(p);
----

Note, this only works when using the LocalInitialContextFactory to embed
OpenEJB into the vm. Once embedded, further configuration properties are
ignored.

See link:containers-and-resources.html[Containers and Resources] for a
full list of supported Resource types and their properties.