luni/src/test/java/libcore/java/io/FileDescriptorTest.java

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * 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 libcore.java.io;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.net.ServerSocket;
import junit.framework.TestCase;

public class FileDescriptorTest extends TestCase {
  public void testReadOnlyFileDescriptorSync() throws Exception {
    File f= File.createTempFile("FileDescriptorTest", "tmp");
    new RandomAccessFile(f, "r").getFD().sync();
  }

  public void test_isSocket() throws Exception {
    File f = new File("/dev/null");
    FileInputStream fis = new FileInputStream(f);
    assertFalse(fis.getFD().isSocket());
    fis.close();

    ServerSocket s = new ServerSocket();
    assertTrue(s.getImpl$().getFD$().isSocket());
    s.close();
  }
}