Java 如何模拟ResourceBundle.getString()?
我无法模拟Java 如何模拟ResourceBundle.getString()?,java,mockito,Java,Mockito,我无法模拟ResourceBundle.getString() 这是我的代码: ResourceBundle schemaBundle = Mockito.mock(ResourceBundle.class); Mockito.when(schemaBundle.getString("testKey_testPropertyName_ect")).thenReturn("testString1"); 第二行出现以下例外情况: java.util.MissingResourceException
ResourceBundle.getString()
这是我的代码:
ResourceBundle schemaBundle = Mockito.mock(ResourceBundle.class);
Mockito.when(schemaBundle.getString("testKey_testPropertyName_ect")).thenReturn("testString1");
第二行出现以下例外情况:
java.util.MissingResourceException: Can't find resource for bundle $java.util.ResourceBundle$$EnhancerByMockitoWithCGLIB$$9e259f03, key testKey_testPropertyName_ect
at java.util.ResourceBundle.getObject(ResourceBundle.java:374)
at java.util.ResourceBundle.getString(ResourceBundle.java:334)
at com.foo.bar.resource.PropertyResourceTest.testGet(PropertyResourceTest.java:104)
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:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
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.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
对我来说,这看起来好像schemaBundle
根本没有被嘲笑。但是调试程序清楚地显示,该实例是由mockito包装的
我也试过了
Mockito.doReturn("testString1").when(schemaBundle).getString("testKey_testPropertyName_ect");
但这会返回相同的异常
你知道怎么回事吗?你可以在下面找到一个解决方案的例子:
@RunWith(PowerMockRunner.class)
@PrepareForTest({ ResourceBundle.class })
public class ResourceBundleTest {
@Test
public void getStringByPowerMock() throws Exception {
ResourceBundle resourceBundle = PowerMockito.mock(ResourceBundle.class);
Mockito.when(resourceBundle.getString(Mockito.anyString())).thenReturn("Hello world....");
System.out.println(resourceBundle.getString("keyword"));
}
}
我通过对ResourceBundle.Control子类化,找到了一种模拟ResourceBundle的方法。我的答案是:
我更喜欢避免PowerMock、JMockit和friends的动态字节码重写(删除final),因为Jacoco和其他东西似乎讨厌它。您可以创建一个虚拟ResourceBundle实现,然后将其传递到
。然后返回(ResourceBundle)
:
import java.util.ResourceBundle;
ResourceBundle dummyResourceBundle=新的ResourceBundle(){
@凌驾
受保护对象handleGetObject(字符串键){
返回“伪值”;
}
@凌驾
公共枚举getKeys(){
返回集合。emptyEnumeration();
}
};
//示例用法
when(request.getResourceBundle(any(Locale.class)).thenReturn(dummyResourceBundle)
如果您需要实际的键和值,那么您需要为
getKeys()
提供一个实现,例如用于存储和键查找的hashmap。@Powermockito没有像ResourceBundle那样工作。class具有不容易模拟的静态final方法
我试过了
在主类中,在另一个公共方法中提取您的方法,然后用实现覆盖它
这里ReviewChannelApplicationBean是我的控制器,在这里我超越了getBundle
ReviewEChannelApplicationMBean = spy(new ReviewEChannelApplicationMBean(){
@Override
public ResourceBundle getBundle(FacesContext fcContext) {
return TestDataBuilder.getResourceBundle();
}
});
//这个类使用ListResourceBundle创建了我的TestDataBuilder
public class TestDataBuilder {
public static ResourceBundle getResourceBundle() {
return new ListResourceBundle(){
@Override
protected Object[][] getContents() {
return contents;
}
private Object[][] contents = {
{"test1","01"},
{"test2","01"},
{"test3","01"},
{"test4","01"}
};
};
}
}
看到我的坏,我错过了getString是最终的。请随意添加你的评论作为回答,以便你获得学分。你可以考虑引入一个更多的bean -让我们说“代码>消息< /代码>。它将具有初始化块(locale setup,
getBundle
call)和get(String key,String…args)
。接下来,将应用程序调用全部用于消息
,而不是资源束
耦合。最后,您可以毫无困难地在单元测试中模拟消息
。我发现了另一个选项,只需在src/test/resources中添加消息\u xx\u xx.properties,就可以了。另一个问题是一种重复:。还包含一个答案“无需嘲笑”。