/*******************************************************************************
 * Copyright (c) 2012-2016 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.everrest.core.impl.integration;

import org.everrest.core.impl.BaseTest;
import org.everrest.core.impl.ContainerResponse;
import org.junit.Before;
import org.junit.Test;

import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.Application;
import javax.ws.rs.core.GenericEntity;
import javax.ws.rs.core.Response;
import java.util.List;
import java.util.Set;

import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Sets.newHashSet;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

/**
 * @author Dmytro Katayev
 */
public class MethodReturnTypeTest extends BaseTest {

    @Path("/a")
    public static class Resource {
        @POST
        @Path("/1")
        public void m1() {
        }

        @POST
        @Path("/2")
        public Response m2() {
            return Response.ok("m2").build();
        }

        @POST
        @Path("/3")
        public Response m3() {
            return null;
        }

        @POST
        @Path("/4")
        public GenericEntity<List<String>> m4() {
            return new GenericEntity<List<String>>(newArrayList("m4")){};
        }

        @POST
        @Path("/5")
        public String m5() {
            return null;
        }

        @POST
        @Path("/6")
        public String m6() {
            return "m6";
        }
    }

    @Before
    @Override
    public void setUp() throws Exception {
        super.setUp();
        processor.addApplication(new Application() {
            @Override
            public Set<Object> getSingletons() {
                return newHashSet(new Resource());
            }
        });
    }

    @Test
    public void resourceMethodReturnsVoid() throws Exception {
        ContainerResponse response = launcher.service("POST", "/a/1", "", null, null, null);
        assertEquals(204, response.getStatus());
        assertNull(response.getEntity());
    }

    @Test
    public void resourceMethodReturnsResponse() throws Exception {
        ContainerResponse response = launcher.service("POST", "/a/2", "", null, null, null);
        assertEquals(200, response.getStatus());
        assertEquals("m2", response.getEntity());
    }

    @Test
    public void resourceMethodReturnsNullResponse() throws Exception {
        ContainerResponse response = launcher.service("POST", "/a/3", "", null, null, null);
        assertEquals(204, response.getStatus());
        assertNull(response.getEntity());
    }

    @Test
    public void resourceMethodReturnsGenericEntity() throws Exception {
        ContainerResponse response = launcher.service("POST", "/a/4", "", null, null, null);
        assertEquals(200, response.getStatus());
        assertEquals(newArrayList("m4"), response.getEntity());
    }

    @Test
    public void resourceMethodReturnsNull() throws Exception {
        ContainerResponse response = launcher.service("POST", "/a/5", "", null, null, null);
        assertEquals(204, response.getStatus());
        assertNull(response.getEntity());
    }

    @Test
    public void resourceMethodReturnsString() throws Exception {
        ContainerResponse response = launcher.service("POST", "/a/6", "", null, null, null);
        assertEquals(200, response.getStatus());
        assertEquals("m6", response.getEntity());
    }
}