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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2004 Sun * Microsystems, Inc. All Rights Reserved. */ /* * PairMapTest.java * JUnit based test * * Created on May 12, 2004, 11:44 PM */ package org.netbeans.core.output2; import java.lang.ref.WeakReference; import junit.framework.*; /** * * @author tim */ public class PairMapTest extends TestCase { public PairMapTest(java.lang.String testName) { super(testName); } public static Test suite() { TestSuite suite = new TestSuite(PairMapTest.class); return suite; } private PairMap map; protected void setUp() throws Exception { map = new PairMap(); } protected void tearDown() throws Exception {} /** * Test of size method, of class org.netbeans.core.output2.PairMap. */ public void testSize() { System.out.println("testSize"); for (int i=0; i < 10; i++) { String name = "Item " + i; map.add (name, new NbIO(name)); } assertTrue ("Map.size returns " + map.size() + " but should return 10", map.size() == 10); } /** * Test of isEmpty method, of class org.netbeans.core.output2.PairMap. */ public void testIsEmpty() { assertTrue ("Map should be initially empty", map.isEmpty()); String[] s = new String[10]; for (int i=0; i < s.length; i++) { s[i] = "Item " + i; map.add (s[i], new NbIO(s[i])); } assertFalse("Map should not be empty, it should contain 10 items", map.isEmpty()); for (int i=0; i < s.length; i++) { s[i] = "Item " + i; map.remove(s[i]); } assertTrue ("After removing the 10 items added, map should be empty", map.isEmpty()); map.setWeak(true); for (int i=0; i < 5; i++) { System.gc(); } assertTrue ("After gc'ing, map should be empty", map.isEmpty()); } /** * Test of setWeak method, of class org.netbeans.core.output2.PairMap. */ public void testSetWeak() { System.out.println("testSetWeak"); String[] s = new String[10]; for (int i=0; i < s.length; i++) { s[i] = "Item " + i; map.add (s[i], new NbIO(s[i])); } Object[] vals = map.vals; for (int i=0; i < vals.length; i++) { assertTrue ("Should be null or NbIO, not " + vals[i].getClass() + " at " + i, vals[i] == null || vals[i] instanceof NbIO); } map.setWeak(true); for (int i=0; i < vals.length; i++) { assertTrue ("Should be null or NbIO, not " + vals[i].getClass() + " at " + i, vals[i] == null || vals[i] instanceof WeakReference); } map.setWeak(false); for (int i=0; i < vals.length; i++) { assertTrue ("Should be null or NbIO, not " + vals[i].getClass() + " at " + i, vals[i] == null || vals[i] instanceof NbIO); } map.clear(); NbIO[] ios = new NbIO[s.length]; for (int i=0; i < s.length; i++) { NbIO io = new NbIO(s[i]); if (i % 2 == 0) { ios[i] = io; } s[i] = "Item " + i; map.add (s[i], io); } map.setWeak(true); for (int i=0; i < 5; i++) { System.gc(); } int size = map.size(); assertTrue ("Five object should have been garbage collected", size == 5); ios = null; for (int i=0; i < 5; i++) { System.gc(); } size = map.size(); assertTrue ("All object should have been garbage collected, but size is " + size, size == 0); } } |
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