Testing Python Web Applications: Selenium and PyTest: Master Web UI Testing, API Testing, and CI/CD Integration for Modern Web Applications

What You Will Learn in This Book

• Master the fundamentals of web application testing, including different testing types (functional, performance, security, etc.) and the testing pyramid model.
• Set up a complete Python testing environment from scratch, covering virtual environments, IDEs, and the installation of essential libraries like PyTest and Selenium WebDriver.
• Become proficient with PyTest, learning to write, organize, and run tests using its powerful features, including fixtures, markers, and parametrization for data-driven testing.
• Automate browser interactions using Selenium WebDriver, including navigating web pages, locating elements with various strategies (CSS Selectors, XPath), and interacting with forms, dropdowns, and alerts.
• Build a scalable and maintainable automation framework using the Page Object Model (POM) to write clean, reusable, and robust test code that is easy to manage.
• Handle dynamic web content and synchronization challenges by implementing effective waiting strategies to create reliable and stable tests.
• Integrate your test suite with CI/CD pipelines using tools like GitHub Actions or GitLab CI, enabling continuous testing and automated reporting.
• Generate comprehensive test reports using popular plugins like pytest-html and the powerful Allure Reporting Framework, complete with embedded screenshots and detailed steps.
• Run tests in parallel locally and on a distributed grid using pytest-xdist and Selenium Grid to significantly reduce test execution time.
• Expand your automation skills beyond UI testing by learning the basics of API testing with the requests library and using API calls to set up test data for your UI tests.
• Apply Behavior-Driven Development (BDD) principles using pytest-bdd to write human-readable tests that foster collaboration between technical and non-technical team members.
• Debug and troubleshoot common test failures effectively, analyzing error reports, utilizing logging, and implementing strategies to handle flaky tests.
• Implement best practices for writing maintainable test code, managing test data, and ensuring test independence to build a robust and scalable test automation framework.
• Explore advanced testing concepts such as performance and security testing, cross-browser compatibility, and testing modern Single Page Applications (SPAs).