Java Selenium 并行测试用例运行

Question

无法并行运行 TC。我设置了在 testng.xml 文件中运行的并行 TC。它打开 4 个浏览器实例，但测试用例失败。看起来它只创建了一个浏览器会话实例（或类似的东西），因此它尝试在一个实例中完成所有 4 个测试。

如何修改我的设置以成功并行运行 TC？

我已通过以下方式设置驱动程序：

package MainSettings;

import Pages.StartPage;
//import TrackReporting.CaptureScreenShotOnFailureListener;
import TrackReporting.LoggingEventListener;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.events.EventFiringWebDriver;
import org.openqa.selenium.support.events.WebDriverEventListener;
import org.testng.annotations.*;

/**
 * Created by serhii.kaihorodov on 1/4/2016.
 */
//@Listeners(CaptureScreenShotOnFailureListener.class)
public class Settings {
    protected static WebDriver driver;
    protected String baseURL = "https://www.ukr.net";
    private static final WebDriverEventListener eventListener = new LoggingEventListener();
    protected StartPage mainPage;

    @BeforeMethod
    public void setUp()
    {
        System.setProperty("webdriver.chrome.driver", "D:\\Programming\\Java Automation\\ukr.net_test_cases-master\\chromedriver.exe");
//        driver = new EventFiringWebDriver(new FirefoxDriver()).register(eventListener);
        driver = new EventFiringWebDriver(new ChromeDriver()).register(eventListener);
        getDriver().get(baseURL);
        mainPage = new StartPage();
        driver.manage().window().maximize();
    }

    @AfterMethod
    public void tearDown()
    {
        driver.quit();
    }

    public static WebDriver getDriver()
    {
        return driver;
    }
}

我的 testng.xml 文件如下：

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >

<suite name="My_auto_test" verbose="2" parallel="methods" thread-count="4">

    <test name="ukr.net">
        <classes>
            <class name="TestCases.TestCases_block_1"/>
        </classes>
    </test>

</suite>

pom 文件：

<?xml version="1.0" encoding="UTF-8"?>
<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>MySel20Proj</groupId>
    <artifactId>MySel20Proj</artifactId>
    <version>1.0</version>
    <dependencies>
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-java</artifactId>
            <version>3.3.1</version>
        </dependency>

        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.9.6</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.9.8</version>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>2.20</version>
                    <configuration>
                        <parallel>tests</parallel>
                        <threadCount>4</threadCount>
                        <suiteXmlFiles>
                            <suiteXmlFile>KayTC/src/testng.xml</suiteXmlFile>
                        </suiteXmlFiles>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

我的几个测试用例是：

package TestCases;

import MainSettings.Settings;
import org.testng.annotations.Test;

import java.io.IOException;

/**
 * Created by serhii.kaihorodov on 1/4/2016.
 */
public class TestCases_block_1
{
    public class TestCases extends Settings
    {
        @Test (priority=0)
        public void login()
        {
            mainPage.login("kay444415@ukr.net", "06011988");
        }

        @Test (priority=0)
        public void sinoptik_link_is_present1()
        {
            mainPage.login("kay444415@ukr.net", "06011988").sinoptik_link_is_present();
        }

        @Test (priority=0)
        public void autosale_link_is_present1()
        {
            mainPage.login("kay444415@ukr.net", "06011988").autosale_link_is_present();
        }
  }

Answer 1

考虑使用线程安全变量，也许所有线程都使用相同的 WebDriver 实例进行所有测试，这就是崩溃的原因。 尝试像这样声明你的变量：

在你的父类中你应该有这样的东西，这样你就可以存储多个 WebDriver 实例

private Map<String, ThreadLocal> drivers = new HashMap<String, ThreadLocal>(); 

那么在 TestCase 类中你应该有一种安全的方式来存储 WebDriver 对象（java.lang.ThreadLocal 为我们提供了一个 WebDriver 的线程安全包装器。）

ThreadLocal<WebDriver> threadedDriver = new ThreadLocal<WebDriver>();
threadedDriver.set(/* method returning instance of WebDriver*/);

drivers.put(testName, threadedDriver); //so it can be saved in memory
WebDriver driver = drivers.get(testName).get(); //this is how you get the object for regular use

希望对你有帮助！