gemfire-core/src/test/java/com/gemstone/gemfire/internal/net/SocketUtilsJUnitTest.java

/*
 * =========================================================================
 *  Copyright (c) 2002-2014 Pivotal Software, Inc. All Rights Reserved.
 *  This product is protected by U.S. and international copyright
 *  and intellectual property laws. Pivotal products are covered by
 *  more patents listed at http://www.pivotal.io/patents.
 * =========================================================================
 */

package com.gemstone.gemfire.internal.net;

import static org.junit.Assert.*;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.lib.legacy.ClassImposteriser;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import com.gemstone.gemfire.test.junit.categories.UnitTest;

/**
 * The SocketUtilsJUnitTest class is a test suite of test cases testing the contract and functionality of the SocketUtils
 * utility class.
 * <p/>
 * @author John Blum
 * @see com.gemstone.gemfire.internal.net.SocketUtils
 * @see org.jmock.Expectations
 * @see org.jmock.Mockery
 * @see org.junit.Assert
 * @see org.junit.Test
 * @since 7.0
 */
@Category(UnitTest.class)
public class SocketUtilsJUnitTest {

  private Mockery mockContext;

  @Before
  public void setup() {
    mockContext = new Mockery() {{
      setImposteriser(ClassImposteriser.INSTANCE);
    }};
  }

  @After
  public void tearDown() {
    mockContext.assertIsSatisfied();
  }

  @Test
  public void testCloseSocket() throws IOException {
    final Socket mockSocket = mockContext.mock(Socket.class, "closeSocketTest");

    mockContext.checking(new Expectations() {{
      oneOf(mockSocket).close();
    }});

    assertTrue(SocketUtils.close(mockSocket));
  }

  @Test
  public void testCloseSocketThrowsIOException() throws IOException {
    final Socket mockSocket = mockContext.mock(Socket.class, "closeSocketThrowsIOExceptionTest");

    mockContext.checking(new Expectations() {{
      oneOf(mockSocket).close();
      will(throwException(new IOException("test")));
    }});

    try {
      assertFalse(SocketUtils.close(mockSocket));
    }
    catch (Throwable t) {
      fail("Calling close on a Socket using SocketUtils threw an unexpected Throwable (" + t + ")!");
    }
  }

  @Test
  public void testCloseSocketWithNull() {
    assertTrue(SocketUtils.close((Socket) null));
  }

  @Test
  public void testCloseServerSocket() throws IOException {
    final ServerSocket mockServerSocket = mockContext.mock(ServerSocket.class, "closeServerSocketTest");

    mockContext.checking(new Expectations() {{
      oneOf(mockServerSocket).close();
    }});

    assertTrue(SocketUtils.close(mockServerSocket));
  }

  @Test
  public void testCloseServerSocketThrowsIOException() throws IOException {
    final ServerSocket mockServerSocket = mockContext.mock(ServerSocket.class, "closeServerSocketThrowsIOExceptionTest");

    mockContext.checking(new Expectations() {{
      oneOf(mockServerSocket).close();
      will(throwException(new IOException("test")));
    }});

    try {
      assertFalse(SocketUtils.close(mockServerSocket));
    }
    catch (Throwable t) {
      fail("Calling close on a ServerSocket using SocketUtils threw an unexpected Throwable (" + t + ")!");
    }
  }

  @Test
  public void testCloseServerSocketWithNull() {
    assertTrue(SocketUtils.close((ServerSocket) null));
  }

}