GuiceFilterTest.java

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package com.sun.jersey.samples.guice;

import com.sun.jersey.api.client.ClientResponse;
import com.google.inject.servlet.GuiceFilter;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.samples.guice.resources.PerRequestResource;
import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.WebAppDescriptor;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 * Simple set of tests exercising the guice-controlled component injection
 *
 * @author naresh
 * @author Marek Potociar (marek.potociar at oracle.com)
 */
public class GuiceFilterTest extends JerseyTest {
   
    public GuiceFilterTest() {
        super(new WebAppDescriptor.Builder("com.sun.jersey.samples.guice.resources")
                .contextListenerClass(GuiceServletConfig.class)
                .filterClass(GuiceFilter.class)
                .contextPath("jersey-guice-filter")
                .servletPath("/")
                .build());
    }

    @Test
    public void testGuiceNoParam() {
        WebResource webResource = resource();
        ClientResponse response = webResource.path("bound").path("perrequest").accept("text/plain").get(ClientResponse.class);
        assertEquals("Unexpected status code", 200, response.getStatus());
        final String responseEntityBody = response.getEntity(String.class);
        assertTrue("Unexpected query param value", responseEntityBody.contains("x=[no value]"));
        assertTrue("Unexpected user principal", responseEntityBody.contains(new MySecurityContext().getUserPrincipal().toString()));
        String singletonHash = getSingletonHash(responseEntityBody);
        assertEquals("Singleton hash should stay the same among multiple requests", getSingletonHash(webResource.path("bound").path("perrequest").accept("text/plain").get(String.class)), singletonHash);
    }

    @Test
    public void testGuiceWithXParam() {
        WebResource webResource = resource();
        ClientResponse response = webResource.path("bound").path("perrequest").queryParam("x", "test").accept("text/plain").get(ClientResponse.class);
        assertEquals("Unexpected status code", 200, response.getStatus());
        final String responseEntityBody = response.getEntity(String.class);
        assertTrue("Unexpected query param value", responseEntityBody.contains("x=test"));
        assertTrue("Unexpected user principal", responseEntityBody.contains(new MySecurityContext().getUserPrincipal().toString()));
        String singletonHash = getSingletonHash(responseEntityBody);
        assertEquals("Singleton hash should stay the same among multiple requests", getSingletonHash(webResource.path("bound").path("perrequest").accept("text/plain").get(String.class)), singletonHash);
    }

    private static String getSingletonHash(String s) {
        final String singletonLabel = "SINGLETON:";
        int startHashIdx = s.indexOf(singletonLabel) + singletonLabel.length();
        return s.substring(startHashIdx, startHashIdx + 9);
    }
}