Question

因此，我们使用Cucable插件并行运行测试。我们的框架（导致问题的部分）就是这样设计的-

DriverManager类通过initiateWebDriverInstance方法初始化驱动程序。我们从Hooks类中调用此方法。有一个静态instance变量，它将保存已初始化驱动程序对其对象的引用。

DriverManager.java

public class DriverManager
{
     public static DriverManagerinstance;  // instance variable for DriverManager
     public WebDriver driver;
     public static String browsername = "chrome";

     public static DriverManager getInstance() {
        if (instance == null) {
            instance = new DriverManager();
        }
        return instance;
     }

     public void initiateWebDriverInstance(String browserName) {
        //initializing chrome driver
        driver.manage().window().maximize(); //this is executing fine
     }

    //some code
}

Hooks.java

public class Hooks {

    @Before
    public void setup() {  

  DriverManager.getInstance().initiateWebDriverInstance(DriverManager.browsername);

}

 @After...
  }

Page1Steps.java

public class Page1Steps extends WebSessionManager {

    private WebDriver driver = WebSessionManager.getInstance().driver; //driver is null here only in Jenkins rest working fine
    private C2CWebLibrary webLibrary = new C2CWebLibrary(driver); //this is C2CLandingSteps.java:20
//some code
}

这些测试在我的本地计算机上运行良好，但它们在Jenkins机器上生成-

java.lang.NullPointerException 在com.cars24.library.C2CWebLibrary。（C2CWebLibrary.java:30）在 steps.C2C.C2CLandingSteps。（C2CLandingSteps.java:20）位于 sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）在 sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）在 sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）在java.lang.reflect.Constructor.newInstance（Constructor.java:423）在 org.picocontainer.injectors.AbstractInjector.newInstance（AbstractInjector.java:145）在 org.picocontainer.injectors.ConstructorInjector $ 1.run（ConstructorInjector.java:342）在 org.picocontainer.injectors.AbstractInjector $ ThreadLocalCyclicDependencyGuard.observe（AbstractInjector.java:270）在 org.picocontainer.injectors.ConstructorInjector.getComponentInstance（ConstructorInjector.java:364）在 org.picocontainer.injectors.AbstractInjectionFactory $ LifecycleAdapter.getComponentInstance（AbstractInjectionFactory.java:56）在 org.picocontainer.behaviors.AbstractBehavior.getComponentInstance（AbstractBehavior.java:64）在 org.picocontainer.behaviors.Stored.getComponentInstance（Stored.java:91）在 org.picocontainer.DefaultPicoContainer.getInstance（DefaultPicoContainer.java:699）在 org.picocontainer.DefaultPicoContainer.getComponent（DefaultPicoContainer.java:647）在 org.picocontainer.DefaultPicoContainer.getComponent（DefaultPicoContainer.java:678）在 cumul.runtime.java.picocontainer.PicoFactory.getInstance（PicoFactory.java:40）在 cumul.runtime.java.JavaStepDefinition.execute（JavaStepDefinition.java:38）在 cumul.runtime.StepDefinitionMatch.runStep（StepDefinitionMatch.java:37）在黄瓜。运行时。运行时间。运行步骤（运行时.java：300）在黄瓜。运行时模型.StepContainer.runStep（StepContainer.java:44）在黄瓜。运行时模型.StepContainer.runSteps（StepContainer.java:39）在 cuming.runtime.model.CucumberScenario.run（CucumberScenario.java:44）在 cumul.runtime.junit.ExecutionUnitRunner.run（ExecutionUnitRunner.java:102）在 cumul.runtime.junit.FeatureRunner.runChild（FeatureRunner.java:63）在 cumul.runtime.junit.FeatureRunner.runChild（FeatureRunner.java:18）在org.junit.runners.ParentRunner处$ 3.run（ParentRunner.java:290）在 org.junit.runners.ParentRunner $ 1.schedule（ParentRunner.java:71）在 org.junit.runners.ParentRunner.runChildren（ParentRunner.java:288）在 org.junit.runners.ParentRunner.access $ 000（ParentRunner.java:58）在 org.junit.runners.ParentRunner $ 2.evaluate（ParentRunner.java:268）在 org.junit.runners.ParentRunner.run（ParentRunner.java:363）在 banana.runtime.junit.FeatureRunner.run（FeatureRunner.java:70）在 cuming.api.junit.Cucumber.runChild（Cucumber.java:95）在 cuming.api.junit.Cucumber.runChild（Cucumber.java:38）在 org.junit.runners.ParentRunner $ 3.run（ParentRunner.java:290）在 org.junit.runners.ParentRunner $ 1.schedule（ParentRunner.java:71）在 org.junit.runners.ParentRunner.runChildren（ParentRunner.java:288）在 org.junit.runners.ParentRunner.access $ 000（ParentRunner.java:58）在 org.junit.runners.ParentRunner $ 2.evaluate（ParentRunner.java:268）在 org.junit.internal.runners.statements.RunBefores.evaluate（RunBefores.java:26）在 org.junit.internal.runners.statements.RunAfters.evaluate（RunAfters.java:27）在org.junit.runners.ParentRunner.run（ParentRunner.java:363）处 Cucumber.api.junit.Cucumber.run（Cucumber.java:100）在 org.junit.runner.JUnitCore.run（JUnitCore.java:137）在 org.junit.runner.JUnitCore.run（JUnitCore.java:115）在 org.testng.junit.JUnit4TestRunner.start（JUnit4TestRunner.java:82）在 org.testng.junit.JUnit4TestRunner.run（JUnit4TestRunner.java:70）在 org.testng.TestRunner $ 1.run（TestRunner.java:667）在 org.testng.TestRunner.runJUnitWorkers（TestRunner.java:950）在 org.testng.TestRunner.privateRunJUnit（TestRunner.java:698）在 org.testng.TestRunner.run（TestRunner.java:599）在 org.testng.SuiteRunner.runTest（SuiteRunner.java:380）在 org.testng.SuiteRunner.runSequentially（SuiteRunner.java:375）在 org.testng.SuiteRunner.privateRun（SuiteRunner.java:340）在 org.testng.SuiteRunner.run（SuiteRunner.java:289）在 org.testng.SuiteRunnerWorker.runSuite（SuiteRunnerWorker.java:52）在 org.testng.SuiteRunnerWorker.run（SuiteRunnerWorker.java:86）在 org.testng.TestNG.runSuitesSequentially（TestNG.java:1301）在 org.testng.TestNG.runSuitesLocally（TestNG.java:1226）在 org.testng.TestNG.runSuites（TestNG.java:1144）在 org.testng.TestNG.run（TestNG.java:1115）在 org.apache.maven.surefire.testng.TestNGExecutor.run（TestNGExecutor.java:135）在 org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeSingleClass（TestNGDirectoryTestSuite.java:112）在 org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute（TestNGDirectoryTestSuite.java:99）在 org.apache.maven.surefire.testng.TestNGProvider.invoke（TestNGProvider.java:146）在 org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader（ForkedBooter.java:384）在 org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess（ForkedBooter.java:345）在 org.apache.maven.surefire.booter.ForkedBooter.execute（ForkedBooter.java:126）在 org.apache.maven.surefire.booter.ForkedBooter.main（ForkedBooter.java:418）

测试在我的本地计算机上运行良好。这可能是什么问题？

黄瓜并行测试在本地运行良好，但在詹金斯身上抛出了NPE

0 个答案: