Saturday, October 29, 2011

Back to soapUI: testing web services and Java RMI services

I already covered soapUI in one of my previous blog posts. As I still use this tool quite often and extremely excited about it, I would like to share more testing scenarios we as a developers can use on day-by-day basis. The ones for today's post would be: testing web services and Java RMI services.

So first thing first: let's assume we are developing application which exposes web services and our goal is to have some integration testing in place. We don't want to hard-code SOAP requests and responses, we want to leverage Groovy to code real test cases. Thanks to soapUI, it's so easy to do by using Groovy test steps. Let me omit the routine and focus on bare bones details. I created a simple test project in soapUI with this structure:

The interesting part is here: Call web service Groovy step. Before we move on, let's copy several JAR files to <soapUI home>\bin\ext folder: Then we need to restart soapUI. Now we are ready to fill in the Groovy step with some code. Thanks to GroovyWS, calling web service from Groovy is very easy:

import groovyx.net.ws.WSClient

def properties = testRunner.testCase.getTestStepByName( "Properties" )
def service = new WSClient( properties.getPropertyValue( "url" ), this.class.classLoader )
service.initialize()

def token = service.login(
 properties.getPropertyValue( "username" ),
 properties.getPropertyValue( "password" )
)

assert token != null, "Login is not successful"
Properties step just contains username, password and url configuration:
And that's it! Now we can call additional web service methods and easily run this test case as load test: just to verify how web service behaves under heavy load. I usually do it overnight to see application heap, GC and whatnot. Cool.

Second use case: testing Java RMI services. This one requires a bit more work to be done. First of all, you need soapUI to be run using RMISecurityManager. Let's do this.

  1. Create file soapui.policy with content below and store it in <soapUI home>\bin:
    grant {
        permission java.security.AllPermission;
    };
    
  2. Change soapUI command line (<soapUI home>\bin\soapui.bat). Find the line set JAVA_OPTS=... and append to it:
    -Djava.security.policy=soapui.policy -Djava.security.manager=java.rmi.RMISecurityManager
    
    So you will have something like this: set JAVA_OPTS=-Xms128m -Xmx1024m -Dsoapui.properties=soapui.properties "-Dsoapui.home=%SOAPUI_HOME%\" -Djava.security.policy=soapui.policy -Djava.security.manager=java.rmi.RMISecurityManager
To run a bit ahead, we need to copy several JAR files to <soapUI home>\bin\ext folder: Now we a good and just need to restart soapUI. The sample project structure is very similar to what we did before:

Respective Groovy test step is built using Spring Framework which significantly simplifies creating RMI stubs and clients by getting rid of the boilerplate code.
import org.springframework.remoting.rmi.RmiProxyFactoryBean
import com.example.RmiServiceInterface

def properties = testRunner.testCase.getTestStepByName( "Properties" )
def invoker = new RmiProxyFactoryBean( 
 serviceUrl: properties.getPropertyValue( "url" ), 
 serviceInterface: com.example.RmiServiceInterface 
)
invoker.afterPropertiesSet()

def service = invoker.object
def token = service.login(
 properties.getPropertyValue( "username" ),
 properties.getPropertyValue( "password" )
)

assert token != null, "Login is not successful"
Now our service is ready for more serious testing. As with web services scenario Properties step just contains username, password and url (RMI) configuration:
I personally found soapUI to be very helpful tool in my developer toolbox and I definitely recommend using it.

4 comments:

france pope said...

good post.....I appreciate yor way of writing that make the blog attractive and make reader to hold longer to your blog.
web testing services

Andriy Redko said...

Thank you very much, it's the best reward for me to hear such comments!

Best Regards,
Andriy Redko

Innovapath said...

Excellent Post. Also visit http://whiteboxqa.com/#index.php

Whizdom Trainings said...

hi,we provide online training & video tutorial for soapui
for free videos refer
http://soapui-tutorial.com/soapui-tutorial/introduction-to-webservices/