Selenium and Cucumber are open-source frameworks used for automated testing, promoting collaboration between business and technical teams by making it easy to understand an application's workflow and expectations. Selenium is an industry-standard testing framework that supports all major web browsers and programming languages, while Cucumber facilitates behavior-driven development and helps teams collaborate on business rules and requirements. Together, they enable end-to-end testing, which simulates user interactions with the application to ensure its functional correctness. By using these frameworks, developers can create automated tests for their applications, including successful login attempts and unsuccessful login attempts, with step definitions mapping Gherkin syntax to Selenium WebDriver actions. The test runner file instructs JUnit to execute feature files as tests, referencing the location of feature files and step definitions. With this setup, developers can run their Cucumber tests and see the results, promoting collaboration and confidence in the application's functional correctness.