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 [集成测试]使用GroboUtils进行多线程测试
软件技术
lhwork 发表于 2006/11/20 9:50:17 |
| 被测试的类: Buffer.javapackage test;import java.util.HashMap;import java.util.Map;/** * * @author sting */public class Buffer { private static Buffer me = new Buffer(); public static Buffer getInstance() { return me; } private Map<String, Integer> buff; private Buffer() { this.buff = new HashMap<String, Integer>(); } public void put(String key, int value) { if (!(this.buff.containsKey(key))) { this.buff.put(key, value); } } public int get(String key) { if (this.buff.containsKey(key)) { return this.buff.get(key); } return 0; }}TestCase: BufferTest.javapackage test;import net.sourceforge.groboutils.junit.v1.MultiThreadedTestRunner;import net.sourceforge.groboutils.junit.v1.TestRunnable;import junit.framework.TestCase;/** * * @author sting */public class BufferTest extends TestCase { private Buffer buff; protected void setUp() throws Exception { super.setUp(); buff = Buffer.getInstance(); } protected void tearDown() throws Exception { super.tearDown(); } public void test() throws Throwable { TestRunnable[] runnables = new TestRunnable[] { new WriteToBuffer(buff, 10), new GetFromBuffer(buff, 10) }; MultiThreadedTestRunner testRunner = new MultiThreadedTestRunner(runnables); testRunner.runTestRunnables(); } private static class WriteToBuffer extends TestRunnable { private int value; private Buffer buff; public WriteToBuffer(Buffer buff, int value) { this.buff = buff; this.value = value; } @Override public void runTest() throws Throwable { buff.put("sting", value); } } private static class GetFromBuffer extends TestRunnable { private int value; private Buffer buff; public GetFromBuffer(Buffer buff, int value) { this.buff = buff; this.value = value; } @Override public void runTest() throws Throwable { assertEquals(value, buff.get("sting")); } }}运行该test case，结果如下：WARN [Thread-1] (MultiThreadedTestRunner.java:276) - A test thread caused an exception.junit.framework.AssertionFailedError: expected:<10> but was:<0> at junit.framework.Assert.fail(Assert.java:47) at junit.framework.Assert.failNotEquals(Assert.java:282) at junit.framework.Assert.assertEquals(Assert.java:64) at junit.framework.Assert.assertEquals(Assert.java:201) at junit.framework.Assert.assertEquals(Assert.java:207) at test.BufferTest$GetFromBuffer.runTest(BufferTest.java:75) at net.sourceforge.groboutils.junit.v1.TestRunnable.run(TestRunnable.java:154) at java.lang.Thread.run(Unknown Source)把Buffer.java加上同步处理：public class Buffer { private static Buffer me = new Buffer(); public static Buffer getInstance() { return me; } private Map<String, Integer> buff; private Buffer() { this.buff = new HashMap<String, Integer>(); } public void put(String key, int value) { synchronized (this) { if (!(this.buff.containsKey(key))) { this.buff.put(key, value); } } } public int get(String key) { synchronized (this) { if (this.buff.containsKey(key)) { return this.buff.get(key); } return 0; } }}测试通过。这里只是用最简单的code演示了一下如何使用GroboUtils里面提供TestRunnable和MultiThreadedTestRunner来编写多线程的测试代码。其实也可以自己写code去测试，不过已经有人写了，不用再重复去做了。Please refer to http://broboutils.sourceforge.net to get more information.
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