/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Feb 27, 2008
*/
package com.bigdata.util;
import java.io.IOException;
import junit.framework.TestCase;
/**
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestInnerCause extends TestCase {
/**
*
*/
public TestInnerCause() {
super();
}
/**
* @param arg0
*/
public TestInnerCause(String arg0) {
super(arg0);
}
protected Throwable getInnerCause(Throwable t, Class<? extends Throwable> cls) {
return InnerCause.getInnerCause(t, cls);
}
public void test_getInnerCause_correctRejection() {
try {
getInnerCause(null, null);
fail("Expecting: "+IllegalArgumentException.class);
} catch(IllegalArgumentException ex) {
System.err.println("Ignoring expected exception: "+ex);
}
try {
getInnerCause(null, RuntimeException.class);
fail("Expecting: "+IllegalArgumentException.class);
} catch(IllegalArgumentException ex) {
System.err.println("Ignoring expected exception: "+ex);
}
try {
getInnerCause(new RuntimeException(), null);
fail("Expecting: "+IllegalArgumentException.class);
} catch(IllegalArgumentException ex) {
System.err.println("Ignoring expected exception: "+ex);
}
}
/**
* Finds cause when it is on top of the stack trace and the right type.
*/
public void test_getInnerCause01_find_exact() {
Throwable t = new RuntimeException();
assertTrue(t == getInnerCause(t, RuntimeException.class));
}
/**
* Find cause when it is on top of the stack trace and a subclass of the
* desired type.
*/
public void test_getInnerCause01_find_subclass() {
Throwable t = new IOException();
assertTrue(t == getInnerCause(t, Exception.class));
}
/**
* Does not find cause that is a super class of the desired type.
*/
public void test_getInnerCause01_reject_superclass() {
Throwable t = new Exception();
assertNull(getInnerCause(t, IOException.class));
}
/**
* Does not find cause when it is on top of the stack trace and not either
* the desired type or a subclass of the desired type.
*/
public void test_getInnerCause01_reject_otherType() {
Throwable t = new Throwable();
assertNull(getInnerCause(t, Exception.class));
}
/**
* Finds inner cause that is the exact type.
*/
public void test_getInnerCause02_find_exact() {
Throwable cause = new Exception();
Throwable t = new Throwable(cause);
assertTrue(cause == getInnerCause(t, Exception.class));
}
/**
* Finds inner cause that is a derived type (subclass).
*/
public void test_getInnerCause02_find_subclass() {
Throwable cause = new IOException();
Throwable t = new Throwable(cause);
assertTrue(cause == getInnerCause(t, Exception.class));
}
/**
* Does not find inner cause that is a super class of the desired type.
*/
public void test_getInnerCause02_reject_superclass() {
Throwable cause = new Exception();
Throwable t = new RuntimeException(cause);
assertNull( getInnerCause(t, IOException.class));
}
/**
* Does not find an inner cause that is neither the specified type nor a
* subtype of the specified type.
*/
public void test_getInnerCause03_reject_otherType() {
Throwable cause = new RuntimeException();
Throwable t = new Exception(cause);
assertNull( getInnerCause(t, IOException.class) );
}
}