如何執行並行的黃瓜功能文件

Question

我在src/test/resources/feature /中有以下功能文件（獨立的功能文件），我想並行運行它們。就像：一個功能文件必須在Chrome中執行，另一個功能文件必須在firefox中執行@Tags名稱。使用作爲亞軍AbstractTestNGCucumberTests

Feature: Refund item 

@chrome 
    Scenario: Jeff returns a faulty microwave 
    Given Jeff has bought a microwave for $100 
    And he has a receipt 
    When he returns the microwave 
    Then Jeff should be refunded $100 

Feature: Refund Money 

@firefox 
    Scenario: Jeff returns the money 
    Given Jeff has bought a microwave for $100 
    And he has a receipt 
    When he returns the microwave 
    Then Jeff should be refunded $100 

有人可以幫助我實現this.I'm黃瓜使用的Java版本1.2.2，和。另外，讓我知道如何通過使用功能文件動態創建Test Runner並使它們並行運行。

Answer 1

更新： 4.0.0版本可在maven中央存儲庫進行一系列更改。 for more details go here.

更新： 2.2.0版本可在maven中央存儲庫中找到。

您可以使用開源插件cucumber-jvm-parallel-plugin，它比現有解決方案有許多優點。可在行家repository

<dependency> 
    <groupId>com.github.temyers</groupId> 
    <artifactId>cucumber-jvm-parallel-plugin</artifactId> 
    <version>2.1.0</version> 
    </dependency> 

1. 首先，你需要添加這個插件與所需的配置項目中的POM文件。

   <plugin> 
       <groupId>com.github.temyers</groupId> 
       <artifactId>cucumber-jvm-parallel-plugin</artifactId> 
       <version>2.1.0</version> 
       <executions> 
       <execution> 
       <id>generateRunners</id> 
       <phase>generate-test-sources</phase> 
       <goals> 
        <goal>generateRunners</goal> 
       </goals> 
       <configuration> 
        <!-- Mandatory --> 
        <!-- comma separated list of package names to scan for glue code --> 
        <glue>foo, bar</glue> 
        <outputDirectory>${project.build.directory}/generated-test-sources/cucumber</outputDirectory> 
         <!-- The directory, which must be in the root of the runtime classpath, containing your feature files. --> 
         <featuresDirectory>src/test/resources/features/</featuresDirectory> 
         <!-- Directory where the cucumber report files shall be written --> 
         <cucumberOutputDir>target/cucumber-parallel</cucumberOutputDir> 
         <!-- comma separated list of output formats json,html,rerun.txt --> 
         <format>json</format> 
         <!-- CucumberOptions.strict property --> 
         <strict>true</strict> 
         <!-- CucumberOptions.monochrome property --> 
         <monochrome>true</monochrome> 
         <!-- The tags to run, maps to CucumberOptions.tags property you can pass ANDed tags like "@tag1","@tag2" and ORed tags like "@tag1,@tag2,@tag3" --> 
        <tags></tags> 
        <!-- If set to true, only feature files containing the required tags shall be generated. --> 
        <filterFeaturesByTags>false</filterFeaturesByTags> 
        <!-- Generate TestNG runners instead of default JUnit ones. --> 
        <useTestNG>false</useTestNG> 
        <!-- The naming scheme to use for the generated test classes. One of 'simple' or 'feature-title' --> 
        <namingScheme>simple</namingScheme> 
        <!-- The class naming pattern to use. Only required/used if naming scheme is 'pattern'.--> 
        <namingPattern>Parallel{c}IT</namingPattern> 
        <!-- One of [SCENARIO, FEATURE]. SCENARIO generates one runner per scenario. FEATURE generates a runner per feature. --> 
        <parallelScheme>SCENARIO</parallelScheme> 
        <!-- This is optional, required only if you want to specify a custom template for the generated sources (this is a relative path) --> 
        <customVmTemplate>src/test/resources/cucumber-custom-runner.vm</customVmTemplate> 
        </configuration> 
        </execution> 
       </executions> 
       </plugin> 
   

2. 現在，添加以下插件僅低於上述插件，它會調用由上述插件

   <plugin> 
        <groupId>org.apache.maven.plugins</groupId> 
        <artifactId>maven-surefire-plugin</artifactId> 
        <version>2.19</version> 
        <configuration> 
         <forkCount>5</forkCount> 
         <reuseForks>true</reuseForks> 
         <includes> 
          <include>**/*IT.class</include> 
         </includes> 
        </configuration> 
       </plugin> 
   

3. 以上兩個插件將在並行運行（黃瓜測試使用魔法產生的亞軍類提供你機器還擁有先進的硬件支持）。

4. 嚴格規定<forkCount>n</forkCount>此處'n'與1）高級硬件支持和2）您可用的節點，即註冊的瀏覽器實例到HUB成正比。

5. 一個主要的和最重要的變化是你的webdriver類必須SHARED，你應該不實現driver.quit（）方法，如關閉通過關閉掛鉤照顧。

   import cucumber.api.Scenario; 
   import cucumber.api.java.After; 
   import cucumber.api.java.Before; 
   import org.openqa.selenium.OutputType; 
   import org.openqa.selenium.WebDriver; 
   import org.openqa.selenium.WebDriverException; 
   import org.openqa.selenium.firefox.FirefoxDriver; 
   import org.openqa.selenium.support.events.EventFiringWebDriver; 
   
   public class SharedDriver extends EventFiringWebDriver { 
       private static WebDriver REAL_DRIVER = null; 
   
   
   
       private static final Thread CLOSE_THREAD = new Thread() { 
        @Override 
        public void run() { 
         REAL_DRIVER.close(); 
        } 
       }; 
   
       static { 
        Runtime.getRuntime().addShutdownHook(CLOSE_THREAD); 
       } 
   
       public SharedDriver() { 
        super(CreateDriver()); 
       } 
   
       public static WebDriver CreateDriver() { 
        WebDriver webDriver; 
        if (REAL_DRIVER == null) 
         webDriver = new FirefoxDriver(); 
        setWebDriver(webDriver); 
        return webDriver; 
       } 
   
       public static void setWebDriver(WebDriver webDriver) { 
        this.REAL_DRIVER = webDriver; 
       } 
   
       public static WebDriver getWebDriver() { 
        return this.REAL_DRIVER; 
       } 
   
       @Override 
       public void close() { 
        if (Thread.currentThread() != CLOSE_THREAD) { 
         throw new UnsupportedOperationException("You shouldn't close this WebDriver. It's shared and will close when the JVM exits."); 
        } 
        super.close(); 
       } 
   
       @Before 
       public void deleteAllCookies() { 
        manage().deleteAllCookies(); 
       } 
   
       @After 
       public void embedScreenshot(Scenario scenario) { 
        try { 
         byte[] screenshot = getScreenshotAs(OutputType.BYTES); 
         scenario.embed(screenshot, "image/png"); 
        } catch (WebDriverException somePlatformsDontSupportScreenshots) { 
         System.err.println(somePlatformsDontSupportScreenshots.getMessage()); 
        } 
       } 
   } 
   

6. 考慮要執行超過50個線程的IE瀏覽器實例相同的，註冊到HUB，但如果它沒有得到足夠的內存，因此避免你應該開始樞紐這一危局中心會死如grid2 documentation中所述，-DPOOL_MAX = 512（或更大）。

   Really large (>50 node) Hub installations may need to increase the jetty threads by setting -DPOOL_MAX=512 (or larger) on the java command line.

   java -jar selenium-server-standalone-<version>.jar -role hub -DPOOL_MAX=512

Answer 2

黃瓜不支持開箱即用的並行執行。 我試過了，但它不友善。

1. 我們必須使用maven的能力來並行調用它。請參閱link
2. 此外還有一個github項目，它使用自定義插件並行執行。 參考cucumber-jvm-parallel-plugin

Answer 3

如果你期待的是能夠並行運行多個功能，那麼你可以嘗試做如下：

• 複製類AbstractTestNGCucumberTests在您的測試項目，並設置屬性parallel=true到@DataProvider註釋的方法。

由於從TestNG的默認dataprovider-thread-count是10現在你已指示TestNG的並行運行features，你應該能看到自己的特徵文件會並行執行。

但我明白，黃瓜報告本質上不是線程安全的，所以你的報告可能會出現亂碼。