Unit Testing Jersey REST service

In my last post i show how to create Rest service with Jersey api. I also try to give some idea about the basic concept of REST in this link. Now we should start testing before start to do anything else. I write one test case using Jersey Test Framework also create one client using Jersey client tool.

The Jersey Test Framework currently allows you to run your tests on any of the following three light weight containers:
• Embedded GlassFish
• Grizzly Web Server
• Lightweight HTTP Server
The framework is built over JUnit 4.x using Maven.
For details information on Jersey Test Framework check this post


Test case for ProductResource

import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.spi.container.TestContainerFactory;
import java.io.UnsupportedEncodingException;
import org.junit.Test;
import static org.junit.Assert.*;
import com.sun.jersey.test.framework.WebAppDescriptor;
import com.sun.jersey.test.framework.spi.container.http.HTTPContainerFactory;
import java.math.BigDecimal;
import org.model.Product;
import javax.ws.rs.core.MediaType;

/** *
* @author Kamal Hossain
*/
public class ProductServiceTest extends JerseyTest {

public static final String PACKAGE_NAME = "org.resources";
private WebResource ws;

public ProductServiceTest() {
super(new WebAppDescriptor.Builder(PACKAGE_NAME).build());
}

@Override
protected TestContainerFactory getTestContainerFactory() {
return new HTTPContainerFactory();

}

@Test
public void testProductResponse() throws UnsupportedEncodingException {
ws = resource().path("product/kamal");
ClientResponse response = ws.accept(MediaType.APPLICATION_XML).get(ClientResponse.class);
assertEquals(200, response.getStatus());
System.out.println(response.getStatus());


}

@Test
public void testProductPrice() throws UnsupportedEncodingException {
ws = resource().path("product/kamal");
Product prod = ws.accept(MediaType.APPLICATION_XML).get(Product.class);
assertEquals(BigDecimal.valueOf(120), prod.getPrice());


}
}

Test case for ProductsResource

import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.GenericType;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.spi.container.TestContainerFactory;
import java.io.UnsupportedEncodingException;
import org.junit.Test;
import static org.junit.Assert.*;
import com.sun.jersey.test.framework.WebAppDescriptor;
import com.sun.jersey.test.framework.spi.container.http.HTTPContainerFactory;
import org.model.Product;
import java.util.Collection;
import java.util.List;
import javax.ws.rs.core.MediaType;

/** *
* @author kamal hossain
*/
public class ProductsServiceTest extends JerseyTest {
public static final String PACKAGE_NAME = 'org.resources';
private WebResource ws;

public ProductsServiceTest() {
super(new WebAppDescriptor.Builder(PACKAGE_NAME).build());
}

@Override
protected TestContainerFactory getTestContainerFactory() {
return new HTTPContainerFactory();

}

@Test
public void testProductResponse() throws UnsupportedEncodingException {
ws = resource().path("product/kamal");
ClientResponse response = ws.accept(MediaType.APPLICATION_XML).get(ClientResponse.class);
assertEquals(200, response.getStatus());
System.out.println(response.getStatus());


}

@Test
public void testProductList() throws UnsupportedEncodingException {
ws = resource().path("products");
GenericType<Collection<Product>> genericType = new GenericType<Collection<Product>>(){};
List<Product> wsResult = (List<Product>) ws.accept(MediaType.APPLICATION_XML).get(genericType);
assertEquals(2, wsResult.size());

}    

}

You can also install firefox addon Poster to test services.