//
// Copyright (C) 2006 United States Government as represented by the
// Administrator of the National Aeronautics and Space Administration
// (NASA).  All Rights Reserved.
// 
// This software is distributed under the NASA Open Source Agreement
// (NOSA), version 1.3.  The NOSA has been approved by the Open Source
// Initiative.  See the file NOSA-1.3-JPF at the top of the distribution
// directory tree for the complete NOSA document.
// 
// THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
// KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
// LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
// SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
// A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
// THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
// DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//
package gov.nasa.jpf.test.vm.basic;

import org.junit.Test;

import gov.nasa.jpf.util.test.TestJPF;

/**
 * test cast operations
 */
@SuppressWarnings({ "cast", "unused" })
public class CastTest extends TestJPF {
  
  @Test public void testCast () {
    if (verifyNoPropertyViolation()){
      B b = new B();
      A a = b;

      B bb = (B) a;
      K k = (K) a;
      I i = (I) a;

      C c = new C();
      k = (K) c;
    }
  }

  @Test public void testCastFail () {
    if (verifyUnhandledException("java.lang.ClassCastException")){
      A a = new A();
      I i = (I) a;
    }
  }

  @Test public void testArrayCast () {
    if (verifyNoPropertyViolation()){
      String[] sa = new String[1];
      Object o = sa;
      Object[] ol = (Object[])o; // that should succeed
    }
  }
  
@Test public void testArrayCastFail() {
    if (verifyUnhandledException("java.lang.ClassCastException")){
      String[] sa = new String[1];
      Object o = sa ;
      Number[] na = (Number[])o; // that should fail
    }
  }
  
@Test public void testPrimitiveArrayCast() {
    if (verifyNoPropertyViolation()){
      int[] a = new int[10];
      Object o = a;
      int[] b = (int[]) o;
    }
  }
  
  //--- helper types and methods
  
  static interface I {
  }

  static interface J extends I {
  }

  static interface K {
  }
  
  static class A implements K {
  }

  static class B extends A implements J {
  }
  
  static class C extends B {
  }
}