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/*
* TestTrace2DSimple.java of project jchart2d - a Junit test case
* for class Trace2DSimple.
* Copyright (C) Achim Westermann, created on 08.06.2005, 22:58:51
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* If you modify or optimize the code in a useful way please let me know.
* Achim.Westermann@gmx.de
*
*/
package info.monitorenter.gui.chart.traces;
import info.monitorenter.gui.chart.Chart2D;
import info.monitorenter.gui.chart.ITrace2D;
import java.beans.PropertyChangeListener;
import junit.framework.Assert;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* A Junit test case for class <code>{@link Trace2DSimple}</code>.
* <p>
*
* @author <a href="mailto:Achim.Westermann@gmx.de">Achim Westermann</a>
*/
public class TestTrace2DSimple
extends TestCase {
/**
* Test suite for this test class.
* <p>
*
* @return the test suite
*/
public static Test suite() {
TestSuite suite = new TestSuite();
suite.setName(TestTrace2DSimple.class.getName());
suite.addTest(new TestTrace2DSimple("testMemoryLeakTrace2DListeners"));
suite.addTest(new TestTrace2DSimple("testMemoryLeakTrace2DListenersSeverity"));
return suite;
}
/**
* Creates a test case with the given name.
* <p>
*
* @param testName
* the name of the test.
*/
public TestTrace2DSimple(final String testName) {
super(testName);
}
/**
* Adds and removes a trace to a chart and asserts that only one and afterwards zero listeners are
* contained in the chart.
* <p>
*/
public void testMemoryLeakTrace2DListeners() {
Chart2D chart = new Chart2D();
ITrace2D trace = new Trace2DSimple();
PropertyChangeListener[] listeners;
for (int i = 0; i < 100; i++) {
chart.addTrace(trace);
listeners = trace.getPropertyChangeListeners(ITrace2D.PROPERTY_MAX_X);
Assert.assertEquals("Only one listener should be registered!", 1, listeners.length);
chart.removeTrace(trace);
listeners = trace.getPropertyChangeListeners(ITrace2D.PROPERTY_MAX_X);
Assert.assertEquals("All listeners have to be deregistered!", 0, listeners.length);
}
}
/**
* <p>
* Adds and removes a trace to a chart 100 times and asserts that only zero listeners are
* contained in the chart afterwards.
* </p>
*/
public void testMemoryLeakTrace2DListenersSeverity() {
Chart2D chart = new Chart2D();
ITrace2D trace = new Trace2DSimple();
int listeners = 0;
for (int i = 0; i < 100; i++) {
chart.addTrace(trace);
chart.removeTrace(trace);
}
listeners = trace.getPropertyChangeListeners(ITrace2D.PROPERTY_MAX_X).length;
Assert.assertEquals("All listeners have to be deregistered!", 0, listeners);
}
}
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