PowerMock和EasyMock是Java中常用的测试框架,用于模拟和测试代码中的依赖关系。使用PowerMock和EasyMock可以方便地模拟被测试方法中的其他类方法调用。
下面是使用PowerMock和EasyMock从被测试的方法中模拟另一个类方法调用的步骤:
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-core</artifactId>
<version>2.0.9</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>2.0.9</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.easymock</groupId>
<artifactId>easymock</artifactId>
<version>4.3.2</version>
<scope>test</scope>
</dependency>
@RunWith(PowerMockRunner.class)
注解来启用PowerMock的功能。@RunWith(PowerMockRunner.class)
public class YourTestClass {
// 测试方法
}
@PrepareForTest
注解来指定需要模拟的类。@PrepareForTest({YourClass.class})
public class YourTestClass {
// 测试方法
}
PowerMock.mockStatic()
方法来模拟静态方法的调用。@Test
public void testYourMethod() {
PowerMock.mockStatic(YourClass.class);
// 模拟静态方法的行为
EasyMock.expect(YourClass.yourStaticMethod()).andReturn(yourReturnValue);
PowerMock.replay(YourClass.class);
// 调用被测试方法
YourClass.yourMethod();
// 验证模拟方法是否被调用
PowerMock.verify(YourClass.class);
}
这样,就可以使用PowerMock和EasyMock来模拟被测试的方法中的其他类方法调用了。
注意:PowerMock和EasyMock是两个独立的框架,需要一起使用才能实现上述功能。PowerMock用于模拟静态方法和私有方法的调用,而EasyMock用于模拟普通方法的调用。
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import org.easymock.EasyMock;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PowerMockIgnore;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.springframework.aop.framework.Advised;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.util.ReflectionTestUtils;
@RunWith(PowerMockRunner.class)
@PrepareForTest( { PaymentReconService.class })
@PowerMockIgnore(“org.apache.log4j.*”)
public class PaymentGatherServiceTest extends PaymentServiceTestBase {
@Autowired
private GatherService gatherResultService;
@Autowired
private PaymentBaseDAO baseDAO;
/**
* 测试正常postback
*/
public void testPaymentSucc() {
PaymentReconService mock = mock();
Long pbId = 10004L;
String pbStatus = PaymentBaseEO.PB_STATUS_GATHER_SUCC;
BigDecimal succAmount = new BigDecimal(“99.3”);
try {
GatherOrderRO ro = gatherResultService.processPaymentGather(pbId, pbStatus, succAmount, succAmount);
assertNotNull(ro);
} catch (SystemException e) {
fail(e.getLocalizedMessage());
} catch (BusinessException e) {
fail(e.getBusinessCode());
}
EasyMock.verify(mock);
}
/**
* MOCK PaymentReconService实现
* @return
*/
private PaymentReconService mock() {
PaymentReconRO mockRO = new PaymentReconRO(PaymentReconRO.Status.SUCESS, “OK”);
PaymentReconService mock = EasyMock.createMock(PaymentReconServiceImpl.class);
EasyMock.expect(mock.paymentSuccessRecon(EasyMock.anyObject(Long.class))).andReturn(mockRO);
EasyMock.replay(mock);
//这里把依赖的数据注进去
ReflectionTestUtils.s
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