java JavaFX“toolkit not initialized”在一个测试类中,而不是在另外两个测试类中;区别在哪里?
环境:
- 甲骨文JDK 1.8u31李>
- Intellij IDEA 14.0.3李>
- Mockito 1.10.17李>
- TestNG 6.8.13李>
首先,关于该体系结构的一个快速目标:JavaFX所称的“控制器”我称之为显示器,我有一个控制显示器元素的视图类
所有这些视图都继承了一个公共基类:
public abstract class JavafxView<P, D extends JavafxDisplay<P>>
{
protected final Node node;
protected final D display;
protected JavafxView(final String fxmlLocation)
throws IOException
{
final URL url = JavafxView.class.getResource(fxmlLocation);
if (url == null)
throw new IOException(fxmlLocation + ": resource not found");
final FXMLLoader loader = new FXMLLoader(url);
node = loader.load();
display = loader.getController();
}
@SuppressWarnings("unchecked")
@NonFinalForTesting
public <T extends Node> T getNode()
{
return (T) node;
}
@NonFinalForTesting
public D getDisplay()
{
return display;
}
}
起初,我在开始测试时遇到了一个问题,因为每次我都会得到“工具箱未初始化”。然而,在问了这个问题之后,我发现这很有效;我现在可以编写测试来测试行为,而不会出现问题
除了我现在偶然发现了一个测试,在这个测试中我又犯了这个错误:
java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at java.lang.Class.newInstance(Class.java:438)
at sun.reflect.misc.ReflectUtil.newInstance(ReflectUtil.java:51)
at javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1001)
at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:742)
at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2701)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2521)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2435)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2403)
at com.github.fge.grappa.debugger.javafx.JavafxView.<init>(JavafxView.java:24)
at com.github.fge.grappa.debugger.csvtrace.tabs.matches.JavafxMatchesTabView.<init>(JavafxMatchesTabView.java:24)
at com.github.fge.grappa.debugger.csvtrace.tabs.matches.JavafxMatchesTabViewTest.init(JavafxMatchesTabViewTest.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:564)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:213)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:653)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:343)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:305)
at org.testng.SuiteRunner.run(SuiteRunner.java:254)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)
at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:125)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: java.lang.IllegalStateException: Toolkit not initialized
at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:270)
at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:265)
at com.sun.javafx.application.PlatformImpl.setPlatformUserAgentStylesheet(PlatformImpl.java:540)
at com.sun.javafx.application.PlatformImpl.setDefaultPlatformUserAgentStylesheet(PlatformImpl.java:502)
at javafx.scene.control.Control.<clinit>(Control.java:87)
... 47 more
JavafxView.java:24
这是一行:
node = loader.load();
然而,这并不是最奇怪的
我还有另外两个测试类,测试另外两个JavafxView
,当我单独运行测试类时,它们可以正常工作;只有这个新测试不
。。。但是如果我运行整个测试套件,而不是只运行那个测试,那么测试就成功了
以下是测试的完整源代码:
public class JavafxMatchesTabViewTest
{
private JavafxMatchesTabView view;
private MatchesTabDisplay display;
@BeforeMethod
public void init()
throws IOException
{
view = new JavafxMatchesTabView();
display = view.getDisplay();
}
@Test
public void showMatchesTest()
{
final List<MatchStatistics> oldStats = Arrays.asList(
mock(MatchStatistics.class),
mock(MatchStatistics.class)
);
final List<MatchStatistics> newStats = Arrays.asList(
mock(MatchStatistics.class),
mock(MatchStatistics.class)
);
final TableView<MatchStatistics> tableView = spy(new TableView<>());
display.matchesTable = tableView;
final ObservableList<MatchStatistics> tableData = tableView.getItems();
final ObservableList<TableColumn<MatchStatistics, ?>> sortOrder
= tableView.getSortOrder();
tableData.setAll(oldStats);
sortOrder.clear();
view.showMatches(newStats);
assertThat(tableData).containsExactlyElementsOf(newStats);
assertThat(sortOrder).containsExactly(display.nrCalls);
verify(tableView).sort();
}
}
那我该怎么解决呢?乍一看,解决方案似乎是将自定义MockMaker
移植到TestNG的@BeforeClass
。。。除了我不明白我怎么能做到这一点:/
# 1 楼答案
嗯,我想我们必须对
@BeforeClass
和/或@BeforeMethod
应用相同的方法。。像这样(未经测试):如果这样做有效,那么如果将此代码移动到抽象的基本测试类中,您可能会做得更好;-)