可以使用 Cucumber runner 执行 TestNG 跨浏览器测试吗?

Can a TestNG cross-browser test be executed with Cucumber runner?

我正在使用带有 Cucumber 的 Selenium Webdriver。使用该组合,我的测试按预期工作。为了实现跨浏览器测试,我加入了TestNG框架。为了验证我的跨浏览器测试是否运行良好,我 运行 只使用 TestNG,不使用 Cucumber。它 运行 在 Chrome 和 Firefox 浏览器中都完美无缺。

public class WebTest {


  WebDriver driver = null;
  BasePageWeb basePage;
  public String browser;


  @Parameters({ "Browser" })
  public WebTest(String browser) {
    this.browser = browser;
  }

  
  @BeforeClass
  public void navigateToUrl() {
    switch (browser) {

      case "CHROME":
        WebDriverManager.chromedriver().setup();
        driver = new ChromeDriver();
        break;

      case "FF":
        WebDriverManager.firefoxdriver().setup();
        driver = new FirefoxDriver();
        break;

      default:
        driver = null;
        break;
    }
    driver.get("https://demosite.executeautomation.com/Login.html");

  }

  @Test
  public void loginToWebApp() {

    basePage = new BasePageWeb(driver);
    basePage.enterUsername("admin")
            .enterPassword("admin")
            .clickLoginButton();

    driver.quit();
  }

}

testng.xml 文件:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">

<suite name="Suite" parallel="tests" thread-count="5">

    <test name="Chrome Test">
        <parameter name="Browser" value="CHROME"/>
        <classes>
            <class name="tests.web.WebTest"/>
        </classes>
    </test>
    <test name="Firefox Test">
        <parameter name="Browser" value="FF"/>
        <classes>
            <class name="tests.web.WebTest"/>
        </classes>
    </test>
</suite>

我需要将 TestNG 测试与我的 Cucumber 设置集成,这样我就可以 运行 使用 Cucumber 进行整个测试。为此,我向 POM 添加了 cucumber-testng 依赖项,并创建了一个扩展 AbstractCucumberTestNG class 的 Cucumber 运行ner。我指定了特征文件的位置和步骤定义。步骤定义映射到 TestNG 测试。

黄瓜运行小人:

@CucumberOptions(
                plugin = {"pretty", "html:target/surefire-reports/cucumber",
                        "json:target/surefire-reports/cucumberOriginal.json"},
                glue = {"stepdefinitions"},
                tags = "@web-1",
                features = {"src/test/resources/features/web.feature"})
          
   

 public class RunCucumberNGTest extends AbstractTestNGCucumberTests {
    }

步骤定义:

public class WebAppStepDefinitions {
      private final WebTest webTest = new WebTest("CHROME"); //create an object of the class holding the testng test. If I change the argument to FF, the test will run only on Firefox
      static boolean prevScenarioFailed = false;
    
    
      @Before
      public void setUp() {
        if (prevScenarioFailed) {
          throw new IllegalStateException("Previous scenario failed!");
        }
    
      }
    
      @After()
      public void stopExecutionAfterFailure(Scenario scenario) throws Exception {
        prevScenarioFailed = scenario.isFailed();
      }
    
      @Given("^I have navigated to the web url \"([^\"]*)\"$")
      public void navigateToUrl(String url) {  test
        webTest.navigateToUrl(url); //calling the first method holding the testng
      }
    
    
      @When("^I log into my web account with valid credentials as specicified in (.*) and (.*)$")
      public void logintoWebApp(String username, String password) {
        webTest.loginToWebApp(username, password); //calling the second method holding the testng
      }
    }

在 运行 上 class,测试只在一个浏览器中执行 (Chrome)。不知何故,Firefox 在构建过程中迷失了方向。我怀疑我从另一个 class 错误地调用了参数化的 TestNG 方法。如何才能调用成功?

对于使用 Cucumber 的 运行 TestNG 测试,您必须在 testng.xml 中定义 Test 运行ner classes。 =18=]

你的 测试 运行ner class 是 RunCucumberNGTest.

所以 xml 应该是这样的:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">

<suite name="Suite" parallel="tests" thread-count="5">

    <test name="Chrome Test">
        <parameter name="Browser" value="CHROME"/>
        <classes>
            <class name="some.package.name.RunCucumberNGTest"/>
        </classes>
    </test>
    <test name="Firefox Test">
        <parameter name="Browser" value="FF"/>
        <classes>
            <class name="some.package.name.RunCucumberNGTest"/>
        </classes>
    </test>
</suite>

由此xml我看到下一个要求:

  1. 运行相同的一组测试,但参数值不同。

  2. 这应该并行工作,所以这应该是 thread-safe。


1 为测试引入TestNG参数运行ner class

@CucumberOptions(
                plugin = {"pretty", "html:target/surefire-reports/cucumber",
                        "json:target/surefire-reports/cucumberOriginal.json"},
                glue = {"stepdefinitions"},
                tags = "@web-1",
                features = {"src/test/resources/features/web.feature"})
public class RunCucumberNGTest extends AbstractTestNGCucumberTests {

    // static thread-safe container to keep the browser value
    public final static ThreadLocal<String> BROWSER = new ThreadLocal<>();

    @BeforeTest
    @Parameters({"Browser"})
    public void defineBrowser(String browser) {
        //put browser value to thread-safe container
        RunCucumberNGTest.BROWSER.set(browser);
        System.out.println(browser);
    }

}

2 使用步骤定义中的值 class

public class WebAppStepDefinitions {
      private WebTest webTest;
      static boolean prevScenarioFailed = false;
    
      @Before
      public void setUp() {
        if (prevScenarioFailed) {
          throw new IllegalStateException("Previous scenario failed!");
        }
        //get the browser value for current thread
        String browser = RunCucumberNGTest.BROWSER.get();
        System.out.println("WebAppStepDefinitions: " + browser);
        //create an object of the class holding the testng test. If I change the argument to FF, the test will run only on Firefox
        webTest = new WebTest(browser);
      }
    
      @After
      public void stopExecutionAfterFailure(Scenario scenario) throws Exception {
        prevScenarioFailed = scenario.isFailed();
      }
    
      @Given("^I have navigated to the web url \"([^\"]*)\"$")
      public void navigateToUrl(String url) {
        webTest.navigateToUrl(url); //calling the first method holding the testng
      }
    
    
      @When("^I log into my web account with valid credentials as specicified in (.*) and (.*)$")
      public void logintoWebApp(String username, String password) {
        webTest.loginToWebApp(username, password); //calling the second method holding the testng
      }

}

注意: 应从 WebTest class 中删除所有 TestNG 注释,它们将不起作用,也不是必需的。 WebTestWebAppStepDefinitions class 显式使用,所有显式调用的方法均未被 TestNG 调用。

因此,根据您的初始要求:

public class WebTest {

  WebDriver driver = null;
  BasePageWeb basePage;
  public String browser;

  public WebTest(String browser) {
    this.browser = browser;
  }

  public void navigateToUrl(String url) {
    switch (browser) {

      case "CHROME":
        WebDriverManager.chromedriver().setup();
        driver = new ChromeDriver();
        break;

      case "FF":
        WebDriverManager.firefoxdriver().setup();
        driver = new FirefoxDriver();
        break;

      default:
        driver = null;
        break;
    }
    driver.get(url);

  }

  public void loginToWebApp(String username, String password) {

    basePage = new BasePageWeb(driver);
    basePage.enterUsername(username)
            .enterPassword(password)
            .clickLoginButton();

    driver.quit();
  }