package org.junit.tests.running.core;
   
   import static org.junit.Assert.assertEquals;
   
   import java.io.File;
   import java.io.InputStream;
   
   import org.junit.Test;
   
  // Make sure System.exit works as expected. We've had problems with this on some platforms.
  public class SystemExitTest {
  
      private static final int EXIT_CODE = 5;
  
      static public class Exit {
          public static void main(String[] args) {
              System.exit(EXIT_CODE);
          }
      }
  
      @Test
      public void failureCausesExitCodeOf1() throws Exception {
          String java = System.getProperty("java.home") + File.separator + "bin" + File.separator + "java";
          String classPath = getClass().getClassLoader().getResource(".").getFile() + File.pathSeparator + System.getProperty("java.class.path");
          String[] cmd = {java, "-cp", classPath, getClass().getName() + "$Exit"};
          Process process = Runtime.getRuntime().exec(cmd);
          InputStream input = process.getInputStream();
          while ((input.read()) != -1) ;
          assertEquals(EXIT_CODE, process.waitFor());
      }
  }