我正在使用黄瓜BDD,testng,java编写一些BDD测试。我想模拟静态类以编写测试。但是,当我编写此testrunner时,它无法初始化BDD方案。
完整示例(请注意注释行PrepareForTest
):
import gherkin.events.PickleEvent;
import io.cucumber.testng.CucumberOptions;
import io.cucumber.testng.PickleEventWrapper;
import io.cucumber.testng.TestNGCucumberRunner;
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.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.util.concurrent.TimeUnit;
import static org.mockito.Matchers.any;
@CucumberOptions(
features = {
"src/test/resources/features/sample"
},
glue = {
"com.demo.stepdefinitions.sample"
},
plugin = {
"pretty",
"html:target/cucumber-reports/cucumber-pretty",
"json:target/cucumber-reports/sampple-report.json",
"rerun:target/cucumber-reports/sample-rerun.txt"
}
)
//@PrepareForTest({Util.class})
public class TestngWithDataproviderTest extends PowerMockTestCase {
private TestNGCucumberRunner testNGCucumberRunner;
private void mockActiveBucket() {
PowerMockito.mockStatic(Util.class);
PowerMockito.when(Util.getBucketId(any(Long.class))).thenReturn(3);
}
@BeforeClass(alwaysRun = true)
public void setUpClass() throws Exception {
testNGCucumberRunner = new TestNGCucumberRunner(this.getClass());
}
@Test(dataProvider = "users")
public void testMockStatic(String username){
System.out.println("username: " + username);
System.out.println("static test passed");
mockActiveBucket();
Assert.assertTrue(true);
}
@Test(groups = "cucumber scenarios", description = "Runs Cucumber Scenarios", dataProvider = "scenarios")
public void testCucumberCcenario(PickleEventWrapper pickleEvent) throws Throwable {
PickleEvent event = pickleEvent.getPickleEvent();
mockActiveBucket();
testNGCucumberRunner.runScenario(pickleEvent.getPickleEvent());
Assert.assertTrue(true);
}
@DataProvider(name = "scenarios")
public Object[][] scenarios() {
Object[][] scenarios = testNGCucumberRunner.provideScenarios();
return new Object[][]{{scenarios[0][0]}};
}
@DataProvider(name = "users")
public Object[][] users() {
return new Object[][]{{"user1"}, {"user2"}};
}
}
class Util {
public static int getBucketId(long eventTimestamp){
Long minsPast5MinBoundary = (eventTimestamp % TimeUnit.MINUTES.toMillis(5))/TimeUnit.MINUTES.toMillis(1);
return minsPast5MinBoundary.intValue();
}
}
如果我在测试上启用了PrepareForTest
注释,则以上测试无法加载BDD方案dataProvider。但是,使用dataProvider的另一个测试在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)
作为其副作用,我在编写BDD时无法模拟util类的静态方法。我是黄瓜BDD的新手。任何帮助/指针,表示赞赏。
从#help-cucumber-jvm松弛通道获得了一些根本原因的帮助之后,我能够使用自定义类与dataprovider提供testng + powermock的根本原因。例如,此测试失败
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();
}
}
如上所述,这似乎是一种已知的issue,具有解决方法。希望这会有所帮助。