Network Throttling

There might be instances where you would have to check the functionality of your website on low latency networks ( 2G/3G/LTE) or even offline. Such networks have variable upload and download speeds which can alter how your website performs on different browsers.

In order to validate your website on such network profiles, you can simulate these network conditions using our capabilities. If you want the test suite to start with the default network use our preset capabilities. However, the device will have unobstructed internet connectivity.

capabilities.setCapability("networkThrottling", "Regular 4G");

1	capabilities.setCapability("networkThrottling", "Regular 4G");

List Of Network Profiles

Condition	Download Speed (kbps)	Upload Speed (kbps)	Latency (ms)
Offline	0	0	0
Reset	Reset to default	Reset to default	Reset to default
GPRS	50	20	500
Regular 2G	250	50	300
Good 2G	450	150	150
Regular 3G	750	250	100
Good 3G	1 Mbps	750	20
Regular 4G	4 Mbps	3 Mbps	20
DSL	2 Mbps	1 Mbps	5

Custom Network Profile: For creating custom network conditions you can use objects. Define the upload speed, download speed, and latency for the custom condition, as shown in the above table.

Configuring Network Profile

The Selenium JavaScript Executor allows you to enable network simulation capabilities for tests and to generate custom log files. You can use conditional capabilities to simulate network conditions for individual test cases.

driver.execute_script("networkProfile")

1	driver.execute_script("networkProfile")

LambdaTest now allows you to select a network profile before running automation tests. This will allow you to conduct the functional tests of your website or web app on low/high latency networks and offline. In order to simulate the network conditions, you can use the networkProfile capability as shown below.

JavaScript Executor Command	Request Parameters	Example
networkProfile	condition: a string or object representing browser network conditions	driver.execute_script(“networkProfile”, { “condition”: { “download”: 500, “upload”: 100, “latency”: 30 } })

Configuring Network Throttling In Test Automation

To configure network throttling in automation, we have used the TestNG github repository to run our automation tests. You would just have to define network throttle capabilities in your automation scripts.

DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability("platform", "macOS High Sierra");
caps.setCapability("browserName", "Safari");
caps.setCapability("version","11.0");
caps.setCapability("build", "Demo-TestNG");
caps.setCapability("name", "TestNG-Todo-Script-1");
caps.setCapability("networkThrottling", "Regular 4G");
caps.setCapability("visual", true);
caps.setCapability("video", true);
caps.setCapability("console", true);

DesiredCapabilities caps = new DesiredCapabilities();

caps.setCapability("platform", "macOS High Sierra");

caps.setCapability("browserName", "Safari");

caps.setCapability("version","11.0");

caps.setCapability("build", "Demo-TestNG");

caps.setCapability("name", "TestNG-Todo-Script-1");

caps.setCapability("networkThrottling", "Regular 4G");

caps.setCapability("visual", true);

caps.setCapability("video", true);

caps.setCapability("console", true);

The following below is the TestNG code. It will validate your LambdaTest credentials for authentication purposes. The code will select the basic capabilities such as OS, browser, browser version, network, and so on.

package com.lambdatest;

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

import org.openqa.selenium.By;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.testng.Assert;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;

public class TestNGTodo1 {

	private RemoteWebDriver driver;
	private String Status="failed";

	@BeforeSuite
	public void setup() throws MalformedURLException {
		String username = System.getenv("LT_USERNAME");
		String authkey = System.getenv("LT_ACCESS_KEY");
		String hub = "@hub.lambdatest.com/wd/hub";

		DesiredCapabilities caps = new DesiredCapabilities();
		caps.setCapability("platform", "macOS High Sierra"); // If this cap isn't specified, it will just get the any available one
		caps.setCapability("browserName", "Safari");
		caps.setCapability("version","11.0");
		caps.setCapability("build", "Demo-TestNG");
		caps.setCapability("name", "TestNG-Todo-Script-1");
		caps.setCapability("networkThrottling", "Regular 4G");  //To enable network throttling
		caps.setCapability("visual", true);     // To enable step by step screenshot
		caps.setCapability("video", true);     //To enable video recording
		caps.setCapability("console", true);  //To capture console logs
		
	driver = new RemoteWebDriver(new URL("https://" + username + ":" + authkey + hub), caps);
		
	}
	

	@Test
	public void basicTest() throws InterruptedException {
		String spanText;
		System.out.println("Loading Url");
		Thread.sleep(100);
		driver.get("https://4dvanceboy.github.io/lambdatest/todo.html");
		Thread.sleep(100);

		System.out.println("Checking Box");
		driver.findElement(By.name("todo-1")).click();
		Thread.sleep(400);

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-2")).click();
		Thread.sleep(400);

		System.out.println("Checking Box");
		driver.findElement(By.name("todo-3")).click();
		Thread.sleep(400);

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-4")).click();
		Thread.sleep(400);

		driver.findElement(By.id("todotext")).sendKeys(" List Item 6");
		driver.findElement(By.id("addbutton")).click();
		Thread.sleep(200);

		driver.findElement(By.id("todotext")).sendKeys(" List Item 7");
		driver.findElement(By.id("addbutton")).click();
		Thread.sleep(200);

		driver.findElement(By.id("todotext")).sendKeys(" List Item 8");
		driver.findElement(By.id("addbutton")).click();
		Thread.sleep(200);

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-1")).click();
		Thread.sleep(300);

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-3")).click();
		Thread.sleep(300);

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-7")).click();
		Thread.sleep(300);

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-8")).click();
		Thread.sleep(300);

		System.out.println("Entering Text");
		driver.findElement(By.id("todotext")).sendKeys("Get Taste of Lambda and Stick to It");
		Thread.sleep(300);

		driver.findElement(By.id("addbutton")).click();

		System.out.println("Checking Another Box");
		driver.findElement(By.name("todo-9")).click();
		Thread.sleep(300);
		// Let's also assert that the todo we added is present in the list.

		spanText = driver.findElementByXPath("/html/body/div/div/div/ul/li[9]/span").getText();
		Assert.assertEquals("Get Taste of Lambda and Stick to It", spanText);
		Status="passed";
		Thread.sleep(150);

		System.out.println("TestFinished");

	}

	@AfterSuite
	public void tearDown() {
		driver.executeScript("lambda-status=" + Status);
		driver.quit();
	}

}

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package com.lambdatest;

import java.net.MalformedURLException;

import java.net.URL;

import org.openqa.selenium.By;

import org.openqa.selenium.remote.DesiredCapabilities;

import org.openqa.selenium.remote.RemoteWebDriver;

import org.testng.Assert;

import org.testng.annotations.AfterSuite;

import org.testng.annotations.BeforeSuite;

import org.testng.annotations.Test;

public class TestNGTodo1 {

private RemoteWebDriver driver;

private String Status="failed";

@BeforeSuite

public void setup() throws MalformedURLException {

String username = System.getenv("LT_USERNAME");

String authkey = System.getenv("LT_ACCESS_KEY");

String hub = "@hub.lambdatest.com/wd/hub";

DesiredCapabilities caps = new DesiredCapabilities();

caps.setCapability("platform", "macOS High Sierra"); // If this cap isn't specified, it will just get the any available one

caps.setCapability("browserName", "Safari");

caps.setCapability("version","11.0");

caps.setCapability("build", "Demo-TestNG");

caps.setCapability("name", "TestNG-Todo-Script-1");

caps.setCapability("networkThrottling", "Regular 4G"); //To enable network throttling

caps.setCapability("visual", true); // To enable step by step screenshot

caps.setCapability("video", true); //To enable video recording

caps.setCapability("console", true); //To capture console logs

driver = new RemoteWebDriver(new URL("https://" + username + ":" + authkey + hub), caps);

}

@Test

public void basicTest() throws InterruptedException {

String spanText;

System.out.println("Loading Url");

Thread.sleep(100);

driver.get("https://4dvanceboy.github.io/lambdatest/todo.html");

Thread.sleep(100);

System.out.println("Checking Box");

driver.findElement(By.name("todo-1")).click();

Thread.sleep(400);

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-2")).click();

Thread.sleep(400);

System.out.println("Checking Box");

driver.findElement(By.name("todo-3")).click();

Thread.sleep(400);

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-4")).click();

Thread.sleep(400);

driver.findElement(By.id("todotext")).sendKeys(" List Item 6");

driver.findElement(By.id("addbutton")).click();

Thread.sleep(200);

driver.findElement(By.id("todotext")).sendKeys(" List Item 7");

driver.findElement(By.id("addbutton")).click();

Thread.sleep(200);

driver.findElement(By.id("todotext")).sendKeys(" List Item 8");

driver.findElement(By.id("addbutton")).click();

Thread.sleep(200);

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-1")).click();

Thread.sleep(300);

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-3")).click();

Thread.sleep(300);

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-7")).click();

Thread.sleep(300);

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-8")).click();

Thread.sleep(300);

System.out.println("Entering Text");

driver.findElement(By.id("todotext")).sendKeys("Get Taste of Lambda and Stick to It");

Thread.sleep(300);

driver.findElement(By.id("addbutton")).click();

System.out.println("Checking Another Box");

driver.findElement(By.name("todo-9")).click();

Thread.sleep(300);

// Let's also assert that the todo we added is present in the list.

spanText = driver.findElementByXPath("/html/body/div/div/div/ul/li[9]/span").getText();

Assert.assertEquals("Get Taste of Lambda and Stick to It", spanText);

Status="passed";

Thread.sleep(150);

System.out.println("TestFinished");

}

@AfterSuite

public void tearDown() {

driver.executeScript("lambda-status=" + Status);

driver.quit();

}

Here is the demo screenshot of the above-executed automation test. You can find your defined network capabilities under the section ‘Input Config’ by navigating to the ‘METADATA’ section of your automation build-logs.

In case you have any questions, feel free to share them with us.Our experts are available on 24×7 chat support. You can also drop us a mail at support@lambdatest.com. Happy testing! ?