Cucumber 依赖问题 - 无法加载插件 class

Question

我是 cucumber 可扩展代码方面的新手，需要帮助。我正在使用 java 8 和 maven，并希望生成黄瓜可扩展报告。但每次我都低于错误：

cucumber.runtime.CucumberException: Couldn't load plugin class: com.cucumber.listener.ExtentCucumberFormatter. It does not implement cucumber.api.Plugin

Pom.xml 文件是：

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>CucumberFramwork</groupId>
    <artifactId>ExtendReport</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>ExtendReport</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>

        <dependency>
            <groupId>com.vimalselvam</groupId>
            <artifactId>cucumber-extentsreport</artifactId>
            <version>3.0.2</version>
        </dependency>

        <dependency>
            <groupId>com.aventstack</groupId>
            <artifactId>extentreports</artifactId>
            <version>3.1.1</version>
        </dependency>

        <dependency>
            <groupId>com.aventstack</groupId>
            <artifactId>extentreports-cucumber4-adapter</artifactId>
            <version>1.0.7</version>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-java</artifactId>
            <version>1.2.5</version>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-jvm</artifactId>
            <version>1.2.5</version>
            <type>pom</type>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-junit</artifactId>
            <version>1.2.5</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

亚军Class代码：

package runners;

import java.io.File;

import org.junit.AfterClass;
import org.junit.runner.RunWith;

import com.cucumber.listener.Reporter;

import cucumber.api.CucumberOptions;
import cucumber.api.junit.Cucumber;

@RunWith(Cucumber.class)
@CucumberOptions(features = "src/test/resources/functionalTests", 
                 glue = { "stepDefinitions" },
                 plugin = {
        "com.cucumber.listener.ExtentCucumberFormatter:target/cucumber-reports/report.html" }, 
                 monochrome = true)
public class TestRunner {
    @AfterClass
    public static void writeExtentReport() {
        try {

                    Reporter.loadXMLConfig(new File("C:\Software\WprkSpace\ExtendReport\Configs\extent-config.xml"));
        }
     catch (Exception e) {
        e.printStackTrace();
        }
        //Reporter.loadXMLConfig("/ExtendReport/Configs/extent-config.xml");
    }
}

我收到这个错误：

cucumber.runtime.CucumberException: Couldn't load plugin class: com.cucumber.listener.ExtentCucumberFormatter. It does not implement cucumber.api.Plugin
    at cucumber.runtime.formatter.PluginFactory.loadClass(PluginFactory.java:178)
    at cucumber.runtime.formatter.PluginFactory.pluginClass(PluginFactory.java:165)
    at cucumber.runtime.formatter.PluginFactory.getPluginClass(PluginFactory.java:222)
    at cucumber.runtime.formatter.PluginFactory.isStepDefinitionReporterName(PluginFactory.java:205)
    at cucumber.runtime.RuntimeOptions$ParsedPluginData.addPluginName(RuntimeOptions.java:357)
    at cucumber.runtime.RuntimeOptions.parse(RuntimeOptions.java:159)
    at cucumber.runtime.RuntimeOptions.<init>(RuntimeOptions.java:90)
    at cucumber.runtime.RuntimeOptions.<init>(RuntimeOptions.java:85)
    at cucumber.runtime.RuntimeOptionsFactory.create(RuntimeOptionsFactory.java:23)
    at cucumber.api.junit.Cucumber.<init>(Cucumber.java:56)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
    at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:29)
    at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:21)
    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)

Answer 1

POM 分析说 -

您正在保留不同范围的库来创建报告，这是不可取的和不期望的。我们将根据需要使用特定的一组，而不是全部一起使用。
您使用的是 Cucumber

info.cukes v1.2.5

您的 pom.xml 具有直接和传递依赖关系

首先让我们对这些库有基本的了解来创建范围报告

1. Vimal Selvam 库： 下面是所需的 Maven 依赖项和示例测试，用于演示如何完成配置设置。

Maven 依赖

<dependency>
    <groupId>com.vimalselvam</groupId>
    <artifactId>cucumber-extentsreport</artifactId>
    <version>3.1.1</version>
</dependency>

请注意 Java 8+ 并添加 ExtentReport v3.1.1+ 的依赖项是 mandatory.To 这样做，将以下内容粘贴到您的 pom.xml:

<dependency>
    <groupId>com.aventstack</groupId>
    <artifactId>extentreports</artifactId>
    <version>3.1.1</version>
</dependency>

Cucumber Runner 文件

 @RunWith(Cucumber.class)
    @CucumberOptions(
            features = {"src/test/resources/features"},
            glue = {"com.cucumber.stepdefinitions"},
            plugin = {"com.cucumber.listener.ExtentCucumberFormatter:output/report.html"}
            )
    public class RunCukesTest {
        @AfterClass
        public static void teardown() {
            Reporter.loadXMLConfig(new File("src/test/resources/extent-config.xml"));
            Reporter.setSystemInfo("user", System.getProperty("user.name"));
            Reporter.setSystemInfo("os", "Mac OSX");
            Reporter.setTestRunnerOutput("Sample test runner output message");
        }
    }

以上设置将在输出目录中生成名称为 report.html 的报告。

2。 Extent Adapter: 美妙的是，除了在下面的运行器中设置适配器之外，你不需要在任何地方编写任何代码来生成报告。

Maven 依赖

<dependency>
    <groupId>com.aventstack</groupId>
    <artifactId>extentreports-cucumber4-adapter</artifactId>
    <version>1.0.6</version>
</dependency>

将 com.aventstack.extentreports.cucumber.adapter.ExtentCucumberAdapter 插件 添加到运行程序。

@RunWith(Cucumber.class)
@CucumberOptions(plugin = {"com.aventstack.extentreports.cucumber.adapter.ExtentCucumberAdapter:"})
public class RunCukesTest {
    // ..
}

报表输出目录 - ../Project Directory/test-output/HtmlReport

要点： 我们不应该混合直接依赖和传递依赖，特别是他们的版本！这样做会导致不可预知的结果。我们会要求您使用 Cucumber v>=4.0.0，因为您使用的是 Cucumber 的相当古老的依赖项 (v1.2.5)。

首先您可以添加下面的黄瓜最小依赖集。

<dependency>
    <groupId>io.cucumber</groupId>
    <artifactId>cucumber-junit</artifactId>
    <version>4.2.6</version>
    <scope>test</scope>
</dependency>

<dependency>
    <groupId>io.cucumber</groupId>
    <artifactId>cucumber-picocontainer</artifactId>
    <version>4.2.6</version>
    <scope>test</scope>
</dependency>

第二考虑到不使用扩展适配器的情况，在POM.XML**下添加扩展依赖。

<dependency>
    <groupId>com.vimalselvam</groupId>
    <artifactId>cucumber-extentsreport</artifactId>
    <version>3.1.1</version>
</dependency>

<dependency>
    <groupId>com.aventstack</groupId>
    <artifactId>extentreports</artifactId>
    <version>3.1.5</version>
</dependency>

在此工作流程中，不要将 com.aventstack.extentreports.cucumber.adapter.ExtentCucumberAdapter 插件添加到运行程序。

作为最后一个 Hooks class 我们确实编写了针对每个场景执行的扩展代码。

public class 挂钩 {

private final static Logger log = Logger.getLogger(Hooks.class);
static volatile int x = 0;

@Before
public void setUpScenario(Scenario scenario){
    ExtentTestManager.startTest("Scenario No . " + (x = x + 1) + " : " + scenario.getName());
    ExtentTestManager.getTest().log(Status.INFO, "Scenario No . "+ x + " Started : - " + scenario.getName());
}

@After
public void afterScenario(Scenario scenario){
    String videoFile= Utility.stopAUTTestRecorder();
    try{
        if(scenario.isFailed()){
           ExtentTestManager.addScreenShotsOnFailure();
            //------------------------- Attaching video in the Report -------------------------
            String failedTestVideo = "<a href=\"" + videoFile + "\">Download Failed Test Case Video</a>";
            ExtentTestManager.embedVideoLink(failedTestVideo);
            //scenario.write(failedTestVideo);
        }
        }
        ExtentManager.getReporter().flush();
    }
  }

Answer 2

尝试将这 2 个依赖项与下面的相同版本一起使用：

<dependency>
    <groupId>com.vimalselvam</groupId>
    <artifactId>cucumber-extentsreport</artifactId>
    <version>3.0.2</version>
   </dependency>

    <dependency>
    <groupId>com.aventstack</groupId>
    <artifactId>extentreports</artifactId>
    <version>3.1.2</version>
   </dependency>

这里有更多信息：

extent-report-plugin-for-cucumber

Cucumber 依赖问题 - 无法加载插件 class

Cucumber Dependency Issue - couldn't load plugin class

selenium

cucumber

cucumber-jvm

cucumber-junit

selenium-webdriver