Cucumber Cumber testng使用PowerMockTestCase模拟静态类

我正在使用CumberBDD、testng、java编写一些BDD测试。为了编写测试，我想模拟静态类。但是，当我编写这个testrunner时，它无法初始化BDD场景

完整示例（请注意注释行

PrepareForTest

）：

如果在测试中启用

PrepareForTest

注释，则上述测试无法加载BDD场景数据提供程序。但是，另一个使用dataProvider的测试在这两种情况下都可以正常工作（启用或禁用

PrepareForTest

）

错误：

Data provider mismatch
Method: testCucumberCcenario([Parameter{index=0, type=io.cucumber.testng.PickleEventWrapper, declaredAnnotations=[]}])
Arguments: [(io.cucumber.testng.PickleEventWrapperImpl) "Sunday isn't Friday"]

    at org.testng.internal.reflect.DataProviderMethodMatcher.getConformingArguments(DataProviderMethodMatcher.java:45)
    at org.testng.internal.Parameters.injectParameters(Parameters.java:796)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:983)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
    at org.testng.TestRunner.privateRun(TestRunner.java:648)
    at org.testng.TestRunner.run(TestRunner.java:505)

---

这样做的一个副作用是，我无法在编写BDD时模拟util类的静态方法。我是黄瓜BDD的新手。非常感谢您的任何帮助/指点。

在从#help频道获得一些关于根本原因的帮助后，我能够通过使用自定义类的数据提供程序将其根本原因转换为testng+powermock。 例如，该测试失败

import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.testng.PowerMockTestCase;
import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.ObjectFactory;
import org.testng.annotations.Test;

import java.io.IOException;
import java.util.concurrent.TimeUnit;
import static org.mockito.Matchers.any;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;

@PrepareForTest(Util2.class)
public class TestngWithDataproviderTestngTest extends PowerMockTestCase {

    @ObjectFactory
    public org.testng.IObjectFactory getObjectFactory() {
        return new org.powermock.modules.testng.PowerMockObjectFactory();
    }

    private void mockActiveBucket() {
        PowerMockito.mockStatic(Util.class);
        PowerMockito.when(Util.getBucketId(any(Long.class))).thenReturn(3);
    }

    @Test(dataProvider = "users")
    public void testMockStatic(MyTestCaseImpl myTestCase) {
        System.out.println("myTestCase: " + myTestCase);
        System.out.println("static test passed");
        mockActiveBucket();
        Assert.assertTrue(true);
    }

    @DataProvider(name = "users")
    public Object[][] users() {
        return new Object[][]{{new MyTestCaseImpl(5)}};
    }
}

//interface MyTestCase {
//}

class MyTestCaseImpl { //implements MyTestCase{
    int i;

    public MyTestCaseImpl() {
    }

    public MyTestCaseImpl(int i) {
        this.i = i;
    }

    public int getI() {
        return i;
    }

    public void setI(int i) {
        this.i = i;
    }
}

class Util2 {
    public static int getBucketId(long eventTimestamp) {
        Long minsPast5MinBoundary = (eventTimestamp % TimeUnit.MINUTES.toMillis(5)) / TimeUnit.MINUTES.toMillis(1);
        return minsPast5MinBoundary.intValue();
    }
}

如前所述，这里似乎是一个已知的解决方案。希望这有帮助

import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.testng.PowerMockTestCase;
import org.testng.Assert;
import org.testng.annotations.DataProvider;
import org.testng.annotations.ObjectFactory;
import org.testng.annotations.Test;

import java.io.IOException;
import java.util.concurrent.TimeUnit;
import static org.mockito.Matchers.any;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;

@PrepareForTest(Util2.class)
public class TestngWithDataproviderTestngTest extends PowerMockTestCase {

    @ObjectFactory
    public org.testng.IObjectFactory getObjectFactory() {
        return new org.powermock.modules.testng.PowerMockObjectFactory();
    }

    private void mockActiveBucket() {
        PowerMockito.mockStatic(Util.class);
        PowerMockito.when(Util.getBucketId(any(Long.class))).thenReturn(3);
    }

    @Test(dataProvider = "users")
    public void testMockStatic(MyTestCaseImpl myTestCase) {
        System.out.println("myTestCase: " + myTestCase);
        System.out.println("static test passed");
        mockActiveBucket();
        Assert.assertTrue(true);
    }

    @DataProvider(name = "users")
    public Object[][] users() {
        return new Object[][]{{new MyTestCaseImpl(5)}};
    }
}

//interface MyTestCase {
//}

class MyTestCaseImpl { //implements MyTestCase{
    int i;

    public MyTestCaseImpl() {
    }

    public MyTestCaseImpl(int i) {
        this.i = i;
    }

    public int getI() {
        return i;
    }

    public void setI(int i) {
        this.i = i;
    }
}

class Util2 {
    public static int getBucketId(long eventTimestamp) {
        Long minsPast5MinBoundary = (eventTimestamp % TimeUnit.MINUTES.toMillis(5)) / TimeUnit.MINUTES.toMillis(1);
        return minsPast5MinBoundary.intValue();
    }
}