使用cucumber-jvm重新尝试失败的黄瓜测试

问题描述 投票:9回答:4

我有一个Cucumber-JVM,JUnit,Selenium设置。我通过在Eclipse中使用JUnit运行RunSmokeTests.java来启动运行。我还设置了一个maven配置文件来从命令行运行测试,将来可能还有Jenkins。

当测试运行时,其中一些可能会失败,主要是由于应用程序花费的时间超过预期。然后我必须重新运行这些场景。目前我通过手动将@rerun标签附加到失败的标签然后运行RunReruns.java来运行它们,这类似于RunSmokeTest.java但使用@rerun标签。

随着自动化测试数量的增加,标记测试并开始运行并清除标签非常耗时。有没有使用Cucumber-JVM重新运行失败测试的自动化方法?

run smoke tests.Java

package testGlueClasses;
import cucumber.api.junit.Cucumber;
import org.junit.runner.RunWith;

@RunWith(Cucumber.class)
@Cucumber.Options(features = "src/test/java", strict = true, format = {
        "html:target/CucumberReport", "json:target/JSON/Cucumber.json",
        "FrameworkCore.CustomTestReporter" }, tags = { "@SmokeTest" }, glue = {
        "FrameworkCore", "MyApp.Utils", "MyApp.StepDefinitions" })
public class RunSmokeTests {

} 

Maven片段:

    <profile>
        <id>smoke</id>
        <properties>
            <include.tests>
                **/RunSmokeTests.java
            </include.tests>
        </properties>
    </profile>
java maven cucumber-jvm cucumber-junit
4个回答
6
投票

我提出了另一种解决方案,使用maven和黄瓜重新运行失败的测试。

1) Record test failures using a RunNotifier

public class RerunningCucumber extends Cucumber {

    private final String className;

    @SuppressWarnings("rawtypes")
    public RerunningCucumber(Class clazz) throws InitializationError, IOException {
        super(clazz);
        className = clazz.getSimpleName();
    }


    @Override
    public void run(RunNotifier notifier) {
        notifier.addListener(new RunListener(){

            public void testFailure(Failure failure) throws Exception {

                Throwable error = failure.getException();
                if (error instanceof AssertionError){
                    //Nothing. This is a normal failure. Continue
                    return;
                }

                //No! A wild exception has appeared!
                //Let's run this test again.
                RerunningCucumber.addFile(className);
            }

        });
        super.run(notifier);
    }


    private static final String filename = "target/rerun.properties";
    private static final Set<String> addedClasses = new HashSet<String>();
    public static synchronized void addFile(String className) throws IOException{
        //First find the file

        if (addedClasses.contains(className)){
            return;
        }

        File file = new File(filename);
        if (!file.exists()){
            //Need to create the file
            PrintWriter writer = new PrintWriter(file, "UTF-8");
            writer.print("retryclasses=**/"+className+".class");
            writer.close();
        }
        else {
            PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(file, true)));
            out.print(",**/"+className+".class");
            out.close();
        }

        addedClasses.add(className);
    }
}

2) Use custom class as a runner for the cucumber tests.

这将运行测试,并且每当发生故障时,将失败的类输出到文件。诀窍是保持功能简短并创建大量测试类以避免重复测试。

@RunWith(RerunningCucumber.class)
@CucumberOptions(features = {"classpath:features/testFeature.feature}, format = {
        "html:target/cucumber-html-report/testFeature.html",
        "json:target/cucumber-json-report/testFeature.json"},
        tags = {"@testFeature"})

public class RunTestFeature {
}

3) Add a Rerun profile to maven.

这样做有三件事:1)它将失败的类加载到内存中,2)清除失败的类属性文件,3)仅重新运行从属性文件加载的失败的测试:

    <profile>
        <id>retry</id>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>properties-maven-plugin</artifactId>
                    <version>1.0-alpha-2</version>
                    <executions>
                        <!-- Associate the read-project-properties goal with the initialize 
                            phase, to read the properties file. -->
                        <execution>
                            <phase>pre-clean</phase>
                            <goals>
                                <goal>read-project-properties</goal>
                            </goals>
                            <configuration>
                                <files>
                                    <file>target/rerun.properties</file>
                                </files>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>2.6.1</version>
                    <configuration>
                        <filesets>
                            <fileset>
                                <directory>target</directory>
                                <includes>
                                    <include>rerun.properties</include>
                                </includes>
                            </fileset>
                        </filesets>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-antrun-plugin</artifactId>
                    <version>1.6</version>
                    <executions>
                        <execution>
                            <phase>compile</phase>
                            <goals>
                                <goal>run</goal>
                            </goals>
                            <configuration>
                                <target>
                                    <echo>Retrying the following classes: "${retryclasses}"</echo>
                                </target>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>2.17</version>
                    <configuration>
                        <includes>
                            <include>${retryclasses}</include>
                        </includes>
                        <testFailureIgnore>true</testFailureIgnore>
                    </configuration>
                    <executions>
                        <execution>
                            <phase>test</phase>
                            <goals>
                                <goal>test</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    </profile>

4) Usage

首次试运行:

mvn clean test

下一个测试运行:

mvn clean test -Pretry
mvn clean test -Pretry
mvn clean test -Pretry
...

您可以根据需要重复多次,直到没有错误。


4
投票

我手边没有可执行的示例,但您也可以在jvm上执行此操作。有一个RerunFormatter写了一个文本文件,列出了失败场景的文件和行号:

@CucumberOptions(format = {"rerun:target/rerun.txt"})

您应该能够通过在@前面添加前缀来指定此文件作为另一个测试类的输入:

@CucumberOptions(features = {"@target/rerun.txt"})

1
投票

您可以将黄瓜选项传递给mvn,如下所示

 mvn clean verify  -Dcucumber.options="@rerun.txt"

请注意,这里有一个棘手的部分。如果您在首次运行和重新运行时使用相同的测试运行器(我相信这是您想要的),那么测试运行器将包含类似的内容

@CucumberOptions(plugin = { "rerun:target/rerun.txt"})

如果您使用与下面相同的重新运行文件名激活您使用maven重新运行

 mvn clean verify  -Dcucumber.options="@target/rerun.txt"

然后黄瓜会抱怨它找不到重新运行文件。为什么?因为插件“rerun:target / rerun.txt”将首先使用此测试运行器删除该文件。

解决方法是首先复制/重命名文件,然后启动mvn运行

mv target/rerun.txt rerun.txt &&  mvn clean verify  -Dcucumber.options="@rerun.txt"

这实际上就是你想要的。因为假设文件target / rerun.txt中有5个失败的场景。经过一些修复后重新运行,其中2个通过。现在,target / rerun.txt将仅包含剩余的3个失败方案,这将是调试方式的新起点。


0
投票

您可以使用cucumber-jvm-parallel-plugin贡献的代码作为解决方法,直到它上线。命中命令如下所示。

  1. git clone -b tagwiseOutlinewiseIssueRerun https://github.com/sugatmankar/cucumber-jvm-parallel-plugin.git
  2. mvn clean install。
  3. 现在编辑您的项目pom文件并使用here声明。
  4. 使用此插件的示例是here
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