/*
* org.openmicroscopy.shoola.util.concur.tasks.TestInvocationChainAdapter
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 University of Dundee. All rights reserved.
*
*
* 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; either version 2 of the License, or
* (at your option) any later version.
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.util.concur.tasks;
//Java imports
//Third-party libraries
import junit.framework.TestCase;
//Application-internal dependencies
/**
* Routine unit test for {@link InvocationChainAdapter}.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author <br>Andrea Falconi
* <a href="mailto:a.falconi@dundee.ac.uk">
* a.falconi@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision$ $Date$)
* </small>
* @since OME2.2
*/
public class TestInvocationChainAdapter
extends TestCase
{
private InvocationChainAdapter target; //Object under test.
private MockInvocation[] chain; //Mocks.
private Object[] results; //Call results.
private void makeMockChain(int size)
{
chain = new MockInvocation[size];
results = new Object[size];
for (int i = 0; i < chain.length; i++) {
chain[i] = new MockInvocation();
results[i] = new Object();
}
target = new InvocationChainAdapter(chain);
}
private void setUpExpectedCalls()
{
for (int i = 0; i < chain.length; i++)
chain[i].call(results[i]);
}
private void transitionMocksToVerificationMode()
{
for (int i = 0; i < chain.length; i++)
chain[i].activate();
}
private void ensureAllExpectedCallsWerePerformed()
{
for (int i = 0; i < chain.length; i++)
chain[i].verify();
}
private void doTestIsDone(int chainSize)
throws Exception
{
makeMockChain(chainSize);
setUpExpectedCalls();
transitionMocksToVerificationMode();
//Test.
for (int i = 0; i < chainSize; i++) {
assertFalse((chainSize-i)+" more steps to go!", target.isDone());
target.doStep();
}
assertTrue("No more steps to go!", target.isDone());
target.doStep();
assertTrue("No more steps to go!", target.isDone());
ensureAllExpectedCallsWerePerformed();
}
private void doTestDoStep(int chainSize)
throws Exception
{
makeMockChain(chainSize);
setUpExpectedCalls();
transitionMocksToVerificationMode();
//Test.
for (int i = 0; i < chainSize; i++) {
assertEquals("Should return the same value as call["+i+"].",
results[i], target.doStep());
}
assertEquals("Shouldn't have executed and should have returned null"+
" after the last call.",
null, target.doStep());
ensureAllExpectedCallsWerePerformed();
}
public void setUp()
{
chain = null;
results = null;
target = null;
}
public void testInvocationChainAdapter()
{
try {
new InvocationChainAdapter(null);
fail("Shouldn't accept null.");
} catch (NullPointerException npe) {
//OK, expected.
}
}
public void testInvocationChainAdapter2()
{
try {
new InvocationChainAdapter(new Invocation[0]);
fail("Shouldn't accept 0-length array.");
} catch (IllegalArgumentException iae) {
//OK, expected.
}
}
public void testInvocationChainAdapter3()
{
Invocation call = new MockInvocation();
Invocation[] chain = new Invocation[] {null, call};
try {
new InvocationChainAdapter(chain);
fail("Shouldn't accept null elements.");
} catch (NullPointerException npe) {
//OK, expected.
}
chain[0] = call;
chain[1] = null;
try {
new InvocationChainAdapter(chain);
fail("Shouldn't accept null elements.");
} catch (NullPointerException npe) {
//OK, expected.
}
}
public void testIsDone()
throws Exception
{
for(int chainSize = 1; chainSize <= 10; ++chainSize)
doTestIsDone(chainSize);
}
public void testDoStep()
throws Exception
{
for(int chainSize = 1; chainSize <= 10; ++chainSize)
doTestDoStep(chainSize);
}
}