我是Mockito的新手,并且遇到了花费我大量时间的问题。以下是我的问题陈述和可执行代码。PowerMock:用不同参数嘲弄同一方法的多个调用行为异常
问题
每当我试图嘲弄来自同样的方法多种行为根据不同的参数的Mockito/powermockito使用最后我在一个单一的test.Below测试定义的行为是我的榜样,Service
类有一个静态foo
方法是从我的方法(我想测试)调用不同参数的次数。
它抛出ClassCastException
,想投BResponse
到AResponse
,因为我最后磕碰如果BResponse
而在ClassUnderTest.execute()
我第一次调用foo
要求AResponse
。
示例代码
package poc.staticmethod;
import static org.mockito.Matchers.any;
import static org.powermock.api.mockito.PowerMockito.mockStatic;
import static org.powermock.api.mockito.PowerMockito.when;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import lombok.AllArgsConstructor;
import lombok.Data;
@RunWith(PowerMockRunner.class)
@PrepareForTest(PocStaticTest.Service.class)
public class PocStaticTest {
@InjectMocks
ClassUnderTest c = new ClassUnderTest();
@Before
public void beforeTest() throws Exception {
mockStatic(Service.class);
}
@Test
public void myTest() {
when(Service.foo(any(), new ARequest(any(), "A"))).thenReturn(new AResponse(1, "passed"));
when(Service.foo(any(), new ARequest(any(), "2A")))
.thenReturn(new AResponse(2, "passed"));
when(Service.foo(any(), new BRequest(any(), "B")))
.thenReturn(new BResponse(112, "passed"));
c.execute();
}
public class ClassUnderTest {
public void execute() {
AResponse ar = (AResponse) Service.foo("A1", new ARequest(1, "A"));
AResponse ar2 = (AResponse) Service.foo("A2", new ARequest(2, "2A"));
BResponse br = (BResponse) Service.foo("B1", new BRequest(1, "B"));
}
}
public static class Service {
public static Object foo(String firstArgument, Object obj) {
return null;
}
}
@Data
@AllArgsConstructor
public class ARequest {
public Integer num;
public String name;
}
@Data
@AllArgsConstructor
public class AResponse {
public Integer error;
public String message;
}
@Data
@AllArgsConstructor
public class BRequest {
public Integer num;
public String name;
}
@Data
@AllArgsConstructor
public class BResponse {
public Integer error;
public String message;
}
}
例外:
java.lang.ClassCastException: poc.staticmethod.PocStaticTest$BResponse cannot be cast to poc.staticmethod.PocStaticTest$AResponse
at poc.staticmethod.PocStaticTest$ClassUnderTest.execute(PocStaticTest.java:44)
at poc.staticmethod.PocStaticTest.myTest(PocStaticTest.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:316)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:300)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:131)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.access$100(PowerMockJUnit47RunnerDelegateImpl.java:59)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner$TestExecutorStatement.evaluate(PowerMockJUnit47RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.evaluateStatement(PowerMockJUnit47RunnerDelegateImpl.java:107)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:288)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:208)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:121)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:123)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:121)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
感谢@ZeeshanBilal它为我工作:) –
欢迎@KhalidShah。 –