GuiceChildParentNoScopeSingletonTest.java

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package com.sun.jersey.guice;

import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Scope;
import com.google.inject.Scopes;
import com.google.inject.Stage;
import com.sun.jersey.api.client.Client;
import javax.ws.rs.Path;
import com.sun.jersey.api.client.WebResource;
import com.sun.jersey.api.core.DefaultResourceConfig;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.api.core.ResourceContext;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory;
import com.sun.jersey.guice.spi.container.GuiceComponentProviderFactory;
import javax.ws.rs.GET;
import javax.ws.rs.core.Context;

/**
 *
 * @author Paul.Sandoz@Sun.Com
 */
public class GuiceChildParentNoScopeSingletonTest extends AbstractGrizzlyServerTester {
    public GuiceChildParentNoScopeSingletonTest(String testName) {
        super(testName);
    }

    @Path("parent")
	public static class BoundInParentInjector {
		@Inject
		public BoundInParentInjector() {}

        @GET
        public String get(@Context ResourceContext rc) {
            return "PARENT " + (this == rc.getResource(BoundInParentInjector.class));
        }
	}

    @Path("child")
	public static class BoundInChildInjector {
		@Inject
		public BoundInChildInjector(BoundInParentInjector fromParentInjector) {}

        @GET
        public String get(@Context ResourceContext rc) {
            return "CHILD " + (this == rc.getResource(BoundInChildInjector.class));
        }
	}

	private ResourceConfig buildResourceConfig(Injector injector) {
		ResourceConfig resourceConfig = new DefaultResourceConfig();
		IoCComponentProviderFactory f = new GuiceComponentProviderFactory(resourceConfig, injector);
        resourceConfig.getSingletons().add(f);
        return resourceConfig;
	}

	private Injector withExplicitBindingFor(final Scope scope) {
		Injector parentInjector = Guice.createInjector(Stage.PRODUCTION, new AbstractModule(){
			@Override
			protected void configure() {
				bind(BoundInParentInjector.class).in(scope);
			}
		});
		Injector childInjector = parentInjector.createChildInjector(new AbstractModule(){
			@Override
			protected void configure() {
				bind(BoundInChildInjector.class).in(scope);
			}
		});
		return childInjector;
	}

    public void testNoScope() {
        startServer(buildResourceConfig(withExplicitBindingFor(Scopes.NO_SCOPE)));
        WebResource r = Client.create().resource(getUri().path("/").build());
        assertEquals("CHILD false", r.path("child").get(String.class));
        assertEquals("PARENT false", r.path("parent").get(String.class));
    }
    
    public void testSingleton() {
        startServer(buildResourceConfig(withExplicitBindingFor(Scopes.SINGLETON)));
        WebResource r = Client.create().resource(getUri().path("/").build());
        assertEquals("CHILD true", r.path("child").get(String.class));
        assertEquals("PARENT true", r.path("parent").get(String.class));
    }

}