The Arquillian Universe – Container Extensions – Arquillian Drone

Container Extensions

You want to run your tests like they're in production, right?

• JBoss AS
• GlassFish
• Jetty
• Tomcat
• WebSphere
• WebLogic
• Spring, Weld
• OpenShift
• CloudBees
• ...

Want more?

No problems!

You can implement your own.

Arquillian Drone

Selenium/WebDriver for functional black box tests

Choice of browsers?

Target the ones your customers use.

What about HtmlUnit/PhantomJS?

Arquillian Warp

Don't let your black box tests fool you

This is cool. Where can I use it?

We're testing the UI and...

also performing state verification of 'testable' models or their substitutes.

Arquillian Persistence

So you don't fight your Data Access Layer

Rollback or Commit on every test?

Test your database engine thoroughly as early as you can.

• In general,
• Commit in component and integration tests.
• Rollback in higher-level tests.
• And cleanup correctly.

Transaction Isolation levels

@Test
@UsingDataSet("customer.xml")
@ShouldMatchDataSet("customer-with-account.xml")
public void testCreateAccountForCustomer() {
    // Setup. Query for a customer
    Customer customer = em.find(Customer.class, 1L);

    // Execute. Associate an account with the queried entity
    customerService.createAccount(customer);

    // Verify. Query for the updated customer
    // Avoid **this**, for REPEATABLE_READ/SERIALIZABLE
    em.flush();
    em.clear();
    Customer updatedCustomer = em.find(Customer.class, 1L);
    assertThat(updatedCustomer.getAccount(), equalTo(expectedAccount));
}
                            

Automate Dataset preparation

• Use a database subsetting tool - Jailer
• Or a test data generator - Databene Benerator.

Dataset explosion?

• Avoid large datasets (if you can).
• Design and prepare datasets for reuse across tests.
• It helps to store snapshots of entities across state transitions.

And...

And...