/**
 * Copyright 2010 Google Inc.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 */

package org.waveprotocol.box.server.rpc;

import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import junit.framework.TestCase;

import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.waveprotocol.box.server.authentication.SessionManager;

import java.io.PrintWriter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @author josephg@gmail.com (Joseph Gentle)
 */
public class SignOutServletTest extends TestCase {
  private SignOutServlet servlet;

  @Mock private SessionManager sessionManager;
  @Mock private HttpServletRequest req;
  @Mock private HttpServletResponse resp;
  @Mock private HttpSession session;

  @Override
  protected void setUp() throws Exception {
    MockitoAnnotations.initMocks(this);
    servlet = new SignOutServlet(sessionManager);

    when(req.getSession(false)).thenReturn(session);
    PrintWriter writer = mock(PrintWriter.class);
    when(resp.getWriter()).thenReturn(writer);
  }

  public void testUserSignedOut() throws Exception {
    servlet.doGet(req, resp);
    
    verify(sessionManager).logout(session);
    verify(resp).setStatus(HttpServletResponse.SC_OK);
  }

  public void testServletRedirects() throws Exception {
    String redirect_location = "/abc123?nested=query&string";
    when(req.getParameter("r")).thenReturn(redirect_location);

    servlet.doGet(req, resp);

    verify(resp).sendRedirect(redirect_location);
  }

  public void testServletDoesNotRedirectToRemoteUrl() throws Exception {
    String redirect_location = "http://example.com/";
    when(req.getParameter("r")).thenReturn(redirect_location);

    servlet.doGet(req, resp);

    verify(resp, never()).sendRedirect(anyString());
  }

  public void testServletWorksWhenSessionIsMissing() throws Exception {
    when(req.getSession(false)).thenReturn(null);
    
    servlet.doGet(req, resp);
    
    verify(resp).setStatus(HttpServletResponse.SC_OK);
  }
}