Run Selenium Tests With pytest On LambdaTest

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Learn how to run your Python automation testing scripts using pytest on the LambdaTest platform

Pre-requisites
Run Your First Test
Local Testing With pytest

Prerequisites

Before you can start performing Python 3 automation testing using pytest, you would need to:

Install the latest Python build from the official website. We recommend using the latest version.
Make sure pip is installed in your system. You can install pip from here.
Download the latest Selenium Client and its WebDriver bindings from the official website. Latest versions of Selenium Client and WebDriver are ideal for running your automation script on LambdaTest Selenium cloud grid.
Install virtualenv which is the recommended way to run your tests. It will isolate the build from other setups you may have running and ensure that the tests run with the specified versions of the modules.

pip install virtualenv

Installing Selenium Dependencies And Tutorial Repo

Step 1: Clone the LambdaTest’s pytest-selenium-sample repository and navigate to the code directory as shown below:

git clone https://github.com/LambdaTest/pytest-selenium-sample
cd pytest-selenium-sample

Step 2: Create a virtual environment in your project folder the environment name is arbitrary.

virtualenv venv

Step 3: Activate the environment.

source venv/bin/activate

Step 4: Install the required packages from the cloned project directory:

pip install -r requirements.txt

Setting Up Your Authentication

Make sure you have your LambdaTest credentials with you to run test automation scripts. You can get these credentials from the LambdaTest Automation Dashboard or by your LambdaTest Profile.

Step 5: Set LambdaTest Username and Access Key in environment variables.

For Linux/macOS:

export LT_USERNAME="YOUR_USERNAME" 
export LT_ACCESS_KEY="YOUR ACCESS KEY"

For Windows:

set LT_USERNAME="YOUR_USERNAME" 
set LT_ACCESS_KEY="YOUR ACCESS KEY"

Run Your First Test

Test Scenario: The lt_sample_todo.py sample script tests a simple to-do application with basic functionalities like mark items as done, add items in a list, calculate total pending items etc.

Configuration Of Your Test Capabilities

Step 6: In the python script, you need to update your test capabilities. In this code, we are passing browser, browser version, and operating system information, along with LambdaTest Selenium grid capabilities via capabilities object.

The capabilities object in the above code are defined as:

capabilities = {
        "build": "your build name",
        "name": "your test name",
        "platformName": "Windows 10"
        "browserName": "Chrome",
        "browserVersion": "latest",
}

You can generate capabilities for your test requirements with the help of our inbuilt Desired Capability Generator.

Executing The Test

Step 7: You would need to execute the below command in your terminal/cmd.

pytest -s tests/lt_sample_todo.py

Your test results would be displayed on the test console (or command-line interface if you are using terminal/cmd) and on LambdaTest automation dashboard. LambdaTest Automation Dashboard will help you view all your text logs, screenshots and video recording for your entire automation tests.

Run Your Parallel Tests Using PyTest Framework

To run parallel tests using PyTest, we would have to execute the below command in the terminal:

pytest --workers 2 -s tests/lt_sample_todo.py

Testing Locally Hosted Or Privately Hosted Projects

You can test your locally hosted or privately hosted projects with LambdaTest Selenium grid using LambdaTest Tunnel. All you would have to do is set up an SSH tunnel using tunnel and pass toggle tunnel = True via desired capabilities. LambdaTest Tunnel establishes a secure SSH protocol based tunnel that allows you in testing your locally hosted or privately hosted pages, even before they are live.

Refer our LambdaTest Tunnel documentation for more information.

Here’s how you can establish LambdaTest Tunnel.

Download the binary file of:

Open command prompt and navigate to the binary folder.

Run the following command:

LT -user {user’s login email} -key {user’s access key}

So if your user name is lambdatest@example.com and key is 123456, the command would be:

LT -user lambdatest@example.com -key 123456

Once you are able to connect LambdaTest Tunnel successfully, you would just have to pass on tunnel capabilities in the code shown below :

Tunnel Capability

"tunnel" = true

Tutorials 📙

Check out our latest tutorials on pytest automation testing 👇

Please refer to our PyTest Tutorial | Selenium With Python | Learn PyTest In 90 minutes | LambdaTest. ▶️

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Documentation & Resources 📚

Visit the following links to learn more about LambdaTest's features, setup and tutorials around test automation, mobile app testing, responsive testing, and manual testing.

LambdaTest Community 👥

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What's New At LambdaTest ❓

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About LambdaTest

LambdaTest is a leading test execution and orchestration platform that is fast, reliable, scalable, and secure. It allows users to run both manual and automated testing of web and mobile apps across 3000+ different browsers, operating systems, and real device combinations. Using LambdaTest, businesses can ensure quicker developer feedback and hence achieve faster go to market. Over 500 enterprises and 1 Million + users across 130+ countries rely on LambdaTest for their testing needs.

Features

Run Selenium, Cypress, Puppeteer, Playwright, and Appium automation tests across 3000+ real desktop and mobile environments.
Real-time cross browser testing on 3000+ environments.
Test on Real device cloud
Blazing fast test automation with HyperExecute
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120+ third-party integrations with your favorite tool for CI/CD, Project Management, Codeless Automation, and more.
Automated Screenshot testing across multiple browsers in a single click.
Local testing of web and mobile apps.
Online Accessibility Testing across 3000+ desktop and mobile browsers, browser versions, and operating systems.
Geolocation testing of web and mobile apps across 53+ countries.
LT Browser - for responsive testing across 50+ pre-installed mobile, tablets, desktop, and laptop viewports

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LambdaTest/pytest-selenium-sample