Java 使用Maven Surefire的并行网格测试

我一直在周而复始地试图弄明白这一点，在Selenium网格集群上使用cucumber和maven并行选项几乎是不可能的

我的跑步者根据标签跑步，应该会选择5到6个特征文件

我使用Cucumber for Java、Maven surefire 2.19和Junit

到目前为止，pom的surefire配置如下所示：-

<profile>
        <id>RunFeature</id>
        <build>
            <plugins>
                <plugin>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>${surefire.version}</version>
                    <configuration>
                        <threadCount>5</threadCount>
                        <parallel>methods</parallel>
                        <systemProperties>
                            <property>
                                <name>environmentName</name>
                            </property>
                        </systemProperties>
                        <includes>
                            <include>**/RunFeature.java</include>
                        </includes>
                        <testFailureIgnore>true</testFailureIgnore>
                    </configuration>
                </plugin>
            </plugins>
        </build>
    </profile>

@RunWith(Cucumber.class)
@CucumberOptions(
        plugin = {"json:target/cucumber.json"},
        features = "classpath:",
        glue = "classpath:",
        dryRun = false,
        strict = true)

public class RunFeature {

}

我和Maven一起跑步：-

清理测试-p RunFeature-D environmentName=“DEV” -Dcucumber.options=“--tags@runnable--tags@testa--tags@testb”

这是stacktrace：-

    java.util.ConcurrentModificationException
    at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
    at java.util.ArrayList$Itr.next(ArrayList.java:851)
    at cucumber.runtime.RuntimeOptions$1.invoke(RuntimeOptions.java:287)
    at com.sun.proxy.$Proxy17.feature(Unknown Source)
    at cucumber.runtime.junit.JUnitReporter.feature(JUnitReporter.java:165)
    at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:69)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:93)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:37)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:387)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Feature: Buyer guidelines on buyer detailscucumber.runtime.CucumberException: Expected step: "I login to testing as "testingUser"" got step: "I switch to the "System" tab"
    at cucumber.runtime.junit.JUnitReporter.fetchAndCheckRunnerStep(JUnitReporter.java:71)
    at cucumber.runtime.junit.JUnitReporter.match(JUnitReporter.java:61)
    at cucumber.runtime.Runtime.runStep(Runtime.java:278)
    at cucumber.runtime.model.StepContainer.runStep(StepContainer.java:44)
    at cucumber.runtime.model.StepContainer.runSteps(StepContainer.java:39)
    at cucumber.runtime.model.CucumberScenario.runBackground(CucumberScenario.java:59)
    at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:42)
    at cucumber.runtime.junit.ExecutionUnitRunner.run(ExecutionUnitRunner.java:91)
    at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:63)
    at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:18)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:70)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:93)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:37)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:387)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
java.util.ConcurrentModificationException
    at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
    at java.util.ArrayList$Itr.next(ArrayList.java:851)
    at cucumber.runtime.RuntimeOptions$1.invoke(RuntimeOptions.java:287)
    at com.sun.proxy.$Proxy17.feature(Unknown Source)
    at cucumber.runtime.junit.JUnitReporter.feature(JUnitReporter.java:165)
    at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:69)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:93)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:37)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:387)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
java.util.ConcurrentModificationException
    at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
    at java.util.ArrayList$Itr.next(ArrayList.java:851)
    at cucumber.runtime.RuntimeOptions$1.invoke(RuntimeOptions.java:287)
    at com.sun.proxy.$Proxy17.uri(Unknown Source)
    at cucumber.runtime.junit.JUnitReporter.uri(JUnitReporter.java:160)
    at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:68)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:93)
    at cucumber.api.junit.Cucumber.runChild(Cucumber.java:37)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.apache.maven.surefire.junitcore.pc.Scheduler$1.run(Scheduler.java:387)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

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我不知道该从这里走到哪里。

在尝试并行化时，报告是一个真正的问题。我们创建了一个名为的框架，它在并行测试执行和报告方面做了大量工作，并且完全兼容jvm。您可以检查它，看看它是否适用于您的应用程序

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我们通过使用json reporter并允许每个并行线程创建自己的独立json对象来解决报告问题。然后，我们将所有json结果合并成一个“uber”json。您可以看到代码

看看这个项目，它采用了不同的方法，但也可能是一个不错的选择：

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这是Dude在2015年12月22日的评论中提出的解决方案的一种“干净”版本

cucumber jvm中的记者并不是线程安全的，所以这是不容易做到的。您可以尝试使用多个运行程序对测试进行分组，并在类级别上配置并行执行。我觉得你真的很有冒险精神，你可以尝试重新实现cucumber：（免责声明：由我创建）文档目前仍然缺乏，但它应该基本兼容，存储库中有一些示例。另一个更简单（不是更好）的解决方案是使用多个运行程序编写不同的报告。每个功能文件都可以有自己的运行程序…请查看详细说明。