/*
 * Copyright IBM Corp. and others 2001
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution and
 * is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following
 * Secondary Licenses when the conditions for such availability set
 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
 * General Public License, version 2 with the GNU Classpath
 * Exception [1] and GNU General Public License, version 2 with the
 * OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 */
package com.ibm.j9ddr.view.dtfj.test;

import static org.junit.Assert.*;

import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import com.ibm.dtfj.image.CorruptDataException;
import com.ibm.dtfj.image.ImageThread;
import com.ibm.dtfj.java.JavaRuntime;
import com.ibm.j9ddr.view.dtfj.comparators.ImageRegisterComparator;

import static com.ibm.j9ddr.view.dtfj.test.TestUtil.*;

public class ImageRegisterTest extends DTFJUnitTest {

	@BeforeClass
	public static void classSetup() {
		init();
	}
	
	@Before
	public void setup() {
		initTestObjects();
	}
	
	protected void loadTestObjects(JavaRuntime ddrRuntime, List<Object> ddrObjects, JavaRuntime jextractRuntime, List<Object> jextractObjects) { 
		//Extract registers from all threads
		List<Object> ddrThreads = new LinkedList<Object>();
		List<Object> jextractThreads = new LinkedList<Object>();
		
		Comparator<Object> c = new Comparator<Object>(){

			public int compare(Object o1, Object o2)
			{
				if (o1 instanceof ImageThread && o2 instanceof ImageThread) {
					ImageThread t1 = (ImageThread)o1;
					ImageThread t2 = (ImageThread)o2;
					
					try {
						return t1.getID().compareTo(t2.getID());
					} catch (CorruptDataException e) {
						return 0;
					}
				} else {
					return 0;
				}
			}};
		
		fillLists(ddrThreads, ddrProcess.getThreads(), jextractThreads, jextractProcess.getThreads(), c);
		
		assertEquals("Different numbers of threads", jextractThreads.size(), ddrThreads.size());
		
		Collections.sort(ddrThreads,c);
		Collections.sort(jextractThreads,c);
		
		for (Object o : ddrThreads) {
			if (o instanceof ImageThread) {
				ImageThread t = (ImageThread)o;
				Iterator<?> it = t.getRegisters();
				slurpIterator(it, ddrObjects);
			}
		}
		
		for (Object o : jextractThreads) {
			if (o instanceof ImageThread) {
				ImageThread t = (ImageThread)o;
				Iterator<?> it = t.getRegisters();
				slurpIterator(it, jextractObjects);
			}
		}
	}
	
	@Test
	public void getNameTest() {
		for (int i=0; i!= ddrTestObjects.size(); i++) {
			Object ddrObject = ddrTestObjects.get(i);
			Object jextractObject = jextractTestObjects.get(i);
			imageRegisterComparator.testEquals(ddrObject, jextractObject, ImageRegisterComparator.NAME);
		}
	}
	
	@Test
	public void getValueTest() {
		for (int i=0; i!= ddrTestObjects.size(); i++) {
			Object ddrObject = ddrTestObjects.get(i);
			Object jextractObject = jextractTestObjects.get(i);
			imageRegisterComparator.testEquals(ddrObject, jextractObject, ImageRegisterComparator.VALUE);
		}
	}

}
