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https://medium.com/@naruapon/การสร้าง-selenium-grid-aba4356d6abe

ดาวน์โหลด Selenium Server

Downloads

Downloads Below is where you can find the latest releases of all the Selenium components. You can also find a list of…

www.selenium.dev

 

ตั้งค่า Hub — ตัวกลางในการควบคุม Node ต่าง ๆ ที่เชื่อมต่ออยู่

java -jar selenium-server-4.24.0.jar hub


java -jar selenium-server-4.24.0.jar standalone

java -jar selenium-server-4.24.0.jar standalone --max-sessions 5

ตรวจสอบสถานะของ Hub ได้โดยเปิดเบราว์เซอร์

http://localhost:4444/grid/console

ตั้งค่า Node — Node คือเครื่องที่รันการทดสอบบนเบราว์เซอร์ต่าง ๆ

java -jar selenium-server-4.24.0.jar -role node -hub http://<hub-ip>:4444/grid/register

java -jar selenium-server-4.24.0.jar -role node -hub http://x.x.x.x:4444/grid/register

-hub จะระบุที่อยู่ของ Hub ที่ Node จะเชื่อมต่อไป

กำหนดค่า Browser และ Platform

java -jar selenium-server-4.24.0.jar -role node -nodeConfig nodeConfig.json -hub http://<hub-ip>:4444/grid/register

java -jar selenium-server-4.24.0.jar -role node -nodeConfig nodeConfig.json -hub http://x.x.x.x:4444/grid/register

nodeConfig.json

{
  "capabilities": [
    {
      "browserName": "firefox",
      "maxInstances": 5,
      "seleniumProtocol": "WebDriver"
    },
    {
      "browserName": "chrome",
      "maxInstances": 5,
      "seleniumProtocol": "WebDriver"
    }
  ],
  "configuration": {
    "nodeTimeout": 120,
    "port": 5555,
    "hubPort": 4444,
    "hubHost": "localhost",
    "maxSession": 5,
    "register": true,
    "registerCycle": 5000,
    "nodeStatusCheckTimeout": 5000,
    "role": "node"
  }
}

เขียนสคริปต์ Selenium WebDriver เพื่อส่งการทดสอบไปยัง Grid

เดิม

from selenium import webdriver

 
driver = webdriver.Chrome()

 
driver.get("http://www.google.com")

 
print(driver.title)

 
driver.quit()

ปรับแต่ง

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
 
hub_url = 'http://localhost:4444/wd/hub'

chrome_options = Options()  # Remove the extra space
driver = webdriver.Remote(
    command_executor=hub_url,
    options=chrome_options
)
 
driver.get("http://www.google.com")

print(driver.title)

driver.quit()

ทำให้รันหลาย test case ด้วย unit test

import unittest
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.firefox.options import Options as FirefoxOptions

class TestGoogleChrome(unittest.TestCase):
    
    def setUp(self):
        hub_url = 'http://localhost:4444/wd/hub'
        chrome_options = Options()
        self.driver = webdriver.Remote(
            command_executor=hub_url,
            options=chrome_options
        )

    def test_google_chrome(self):
        self.driver.get("http://www.google.com")
        print(f"Title in Chrome: {self.driver.title}")
        self.assertIn("Google", self.driver.title)
    
    def tearDown(self):
        self.driver.quit()

class TestGoogleFirefox(unittest.TestCase):
    
    def setUp(self):
        hub_url = 'http://localhost:4444/wd/hub'
        firefox_options = FirefoxOptions()
        self.driver = webdriver.Remote(
            command_executor=hub_url,
            options=firefox_options
        )

    def test_google_firefox(self):
        self.driver.get("http://www.google.com")
        print(f"Title in Firefox: {self.driver.title}")
        self.assertIn("Google", self.driver.title)

    def tearDown(self):
        self.driver.quit()

if __name__ == "__main__":
    unittest.main()

Java เดิม

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class LocalSeleniumTest {
    public static void main(String[] args) {
 
        System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");
 
        WebDriver driver = new ChromeDriver();
 
        driver.get("http://www.google.com");

 
        System.out.println("Title: " + driver.getTitle());
 
        driver.quit();
    }
}

Java ปรับแต่ง

import java.net.MalformedURLException;
import java.net.URL;

import org.junit.jupiter.api.Test;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;

class testGrid {

 @Test
 void test() {
  String hubURL = "http://localhost:4444/wd/hub"; 
   
        DesiredCapabilities capabilities = DesiredCapabilities.chrome();

        WebDriver driver = null;

        try {
 
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);

 
            driver.get("http://www.google.com");

 
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                 driver.quit();
            }
        }
 }
}

รันหลายๆ การทดสอบ

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.parallel.Execution;
import org.junit.jupiter.api.parallel.ExecutionMode;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;

import java.net.MalformedURLException;
import java.net.URL;

@Execution(ExecutionMode.CONCURRENT)  
public class testGrid {

    @Test
    void test() {
        String hubURL = "http://localhost:4444/wd/hub"; 

        DesiredCapabilities capabilities = DesiredCapabilities.firefox();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }

    @Test
    void test2() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.chrome();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    
    @Test
    void test3() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.edge();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    
    @Test
    void test4() {
        String hubURL = "http://localhost:4444/wd/hub"; 

        DesiredCapabilities capabilities = DesiredCapabilities.firefox();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }

    @Test
    void test5() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.chrome();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    
    @Test
    void test6() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.edge();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    @Test
    void test7() {
        String hubURL = "http://localhost:4444/wd/hub"; 

        DesiredCapabilities capabilities = DesiredCapabilities.firefox();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }

    @Test
    void test8() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.chrome();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    
    @Test
    void test9() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.edge();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    
    @Test
    void test10() {
        String hubURL = "http://localhost:4444/wd/hub"; 

        DesiredCapabilities capabilities = DesiredCapabilities.firefox();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }

    @Test
    void test11() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.chrome();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
    
    @Test
    void test12() {
        String hubURL = "http://localhost:4444/wd/hub";  

        DesiredCapabilities capabilities = DesiredCapabilities.edge();
        WebDriver driver = null;

        try {
            driver = new RemoteWebDriver(new URL(hubURL), capabilities);
            driver.get("http://www.google.com");
            System.out.println("Title: " + driver.getTitle());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } finally {
            if (driver != null) {
                driver.quit();
            }
        }
    }
}

Robot Framework ร่วมกับ Selenium Grid

เพิ่มหากรันไม่ได้

pip install webdrivermanager

robotgrid.robot

*** Settings ***
Library    SeleniumLibrary

*** Variables ***
${HUB_URL}    http://localhost:4444/wd/hub
${BROWSER}    chrome   

*** Test Cases ***
Test Google in Chrome
    [Documentation]    Test opening Google in Chrome through Selenium Grid
    Open Browser    http://www.google.com    ${BROWSER}    remote_url=${HUB_URL}
    Title Should Be    Google
    [Teardown]    Close Browser

browser เลือกเปลี่ยนได้ตามที่ hub และ node รองรับ เช่น chrome, firefox, edge, ie, safari