The following examples shows that class are portions of the code found in '''CascadingErrorTestCase.java''' is extending from an abstract class called and '''TestCaseCascadingExceptionTestCase.java'''files.<br/>When comparing these two files, possibly in we can see that the two files share a common package '''junitorg.apache.avalon.framework.TestCasetest''' package. In this case, the '''testConstructor()''' and the '''testGetCause()''' would be the altered for testing purposes. 

</**pre>  * From the following, we can see that the class '''CascadingErrorTestCase''' is extending from an abstract class called '''TestCase'''. This is the same case in the '''CascadingExceptionTestCase.java''' file. Hence, this shows that these two classes are subclasses of the class '''TestCase for {@link CascadingError}'''. * * @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</apre> * @version $Id$ */

RuntimeException re = assertNotNull( new RuntimeExceptionCascadingException(null, null ) ); CascadingError e = assertNotNull( new CascadingErrorCascadingException( "msg", re null ) );  assertEqualsassertNotNull( re, e.getCause() );  e = new CascadingErrorCascadingException( "msg", null new RuntimeException(); assertNull( e.getCause() );  // default to jdk 1.3 cause assertNotNull(not that it seems to help, // but it still makes sense) /*Exception exc = new ExceptionCascadingException("blah"); try { try { throw exc; } catch( Exception ex ) { throw null, new CascadingErrorRuntimeException(); } } catch( CascadingError ex ) { ex.getCause(); }*/ }

public void testCasts assertNotNull() { CascadingError e = new CascadingErrorCascadingException( "msg", null ) ); assertTrue// ambiguous assertNotNull( new CascadingException( e instanceof Error null ) ); assertTrue//assertNotNull( e instanceof CascadingThrowable new CascadingException() );