示例HtmlUnit测试失败
我试图通过Junit运行示例HtmlUnit测试用例。
我的项目是以Maven为基础的。 我是否需要在编译和测试时将所有depisions listen添加到我的POM中？ http://htmlunit.sourceforge.net/dependencies.html现在我添加了htmlunit依赖项，httpconnections和nekohtml。
样品测试：
@Test public void homePage() throws Exception { WebClient webClient = new WebClient(BrowserVersion.CHROME_16); final HtmlPage page = webClient.getPage("http://htmlunit.sourceforge.net"); assertEquals("HtmlUnit - Welcome to HtmlUnit", page.getTitleText()); final String pageAsXml = page.asXml(); assertTrue(pageAsXml.contains("")); final String pageAsText = page.asText(); assertTrue(pageAsText.contains("Support for the HTTP and HTTPS protocols")); webClient.closeAllWindows(); } 测试失败，出现以下错误：
homePage(ActiveComponentTest) Time elapsed: 2.06 sec <<< ERROR! com.gargoylesoftware.htmlunit.ObjectInstantiationException: unable to create HTML parser at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.(HTMLParser.java:427) at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.(HTMLParser.java:351) at com.gargoylesoftware.htmlunit.html.HTMLParser.parse(HTMLParser.java:205) at com.gargoylesoftware.htmlunit.html.HTMLParser.parseHtml(HTMLParser.java:180) at com.gargoylesoftware.htmlunit.DefaultPageCreator.createHtmlPage(DefaultPageCreator.java:267) at com.gargoylesoftware.htmlunit.DefaultPageCreator.createPage(DefaultPageCreator.java:155) at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:440) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:315) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:380) at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:365) at ActiveComponentTest.homePage(ActiveComponentTest.java:54) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74) Caused by: org.xml.sax.SAXNotRecognizedException: Feature 'http://cyberneko.org/html/features/scanner/allow-selfclosing-iframe' is not recognized. at org.apache.xerces.parsers.AbstractSAXParser.setFeature(Unknown Source) at com.gargoylesoftware.htmlunit.html.HTMLParser$HtmlUnitDOMBuilder.(HTMLParser.java:420) ... 43 more homePage(ActiveComponentTest) Time elapsed: 2.064 sec <<< ERROR! java.lang.NullPointerException: No document element (http://htmlunit.sourceforge.net/) at com.gargoylesoftware.htmlunit.html.HtmlPage.executeEventHandlersIfNeeded(HtmlPage.java:1190) at com.gargoylesoftware.htmlunit.html.HtmlPage.isOnbeforeunloadAccepted(HtmlPage.java:2123) at com.gargoylesoftware.htmlunit.TopLevelWindow.close(TopLevelWindow.java:112) at com.gargoylesoftware.htmlunit.WebClient.closeAllWindows(WebClient.java:1916) at ActiveComponentTest.tearDown(ActiveComponentTest.java:43) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:36) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)
问题告诉我，我的POM中的一个项目依赖项是拉入一个不同的，不兼容的nekoHTML版本。
一旦我删除了违规的依赖项（这是项目即时测试的暂停，而不是我用来测试其他项目的这个项目 – 长篇故事）一切正常。
@ jlars62，你的pom中可能有这样的东西：
net.sourceforge.htmlunit htmlunit 2.14
添加例外情况如下：
net.sourceforge.htmlunit htmlunit 2.14 ** net.sourceforge.nekohtml nekohtml **