**Course Title:** Testing Frameworks: Principles and Practices **Section Title:** Final Project and Review **Topic:** Complete a final project integrating various testing techniques learned throughout the course. (Lab topic) **Objective:** In this lab, you will work on a comprehensive testing project that integrates various testing techniques learned throughout the course. You will apply your knowledge of testing frameworks, unit testing, integration testing, end-to-end testing, and other testing principles to develop a robust test suite for a real-world application. **Project Overview:** You will be working on a simple e-commerce application that allows users to browse products, add them to cart, and make payments. Your task is to write a comprehensive test suite that covers the entire application, including unit tests, integration tests, and end-to-end tests. **Requirements:** 1. Choose a testing framework of your choice (e.g., Jest, Mocha, JUnit, NUnit) and set up a test environment for the project. 2. Write unit tests for the following components: * Product Service: Test the product service to ensure that it correctly retrieves and updates product information. * Cart Service: Test the cart service to ensure that it correctly adds and removes products from the cart. * Payment Service: Test the payment service to ensure that it correctly processes payments. 3. Write integration tests for the following scenarios: * Product-Cart Integration: Test the integration between the product service and the cart service to ensure that products are correctly added to the cart. * Cart-Payment Integration: Test the integration between the cart service and the payment service to ensure that payments are correctly processed. 4. Write end-to-end tests for the following scenarios: * User adds a product to cart and makes a payment. * User views cart and checks out. 5. Use mocking and stubbing to isolate dependencies and make your tests more efficient. 6. Use a testing library (e.g., Jest, Mocha) to write and run your tests. 7. Use a code coverage tool (e.g., Istanbul, CodeCoverage) to measure the coverage of your tests. **Deliverables:** 1. A comprehensive test suite that covers the entire application. 2. A report that summarizes the testing approach, test coverage, and any challenges faced during the project. 3. A presentation (slides or video) that showcases the testing work and results. **Tools and Resources:** * Node.js and npm (for JavaScript-based testing frameworks) * Java and Maven (for Java-based testing frameworks) * GitHub or GitLab (for version control) * Jest, Mocha, JUnit, or NUnit (for testing frameworks) * Istanbul or CodeCoverage (for code coverage) * Mocking and stubbing libraries (e.g., Mockito, Sinon.js) **Example Use Cases:** * For a JavaScript-based application, you can use Jest as the testing framework and Istanbul for code coverage. * For a Java-based application, you can use JUnit as the testing framework and CodeCoverage for code coverage. **Tips and Recommendations:** * Start by breaking down the application into smaller components and identifying the testing requirements for each component. * Use a testing pyramid approach to ensure that you have a balanced test suite that covers unit tests, integration tests, and end-to-end tests. * Use mocking and stubbing to isolate dependencies and make your tests more efficient. * Use a code coverage tool to measure the coverage of your tests and identify areas that need more testing. **External Resources:** * Jest Documentation: https://jestjs.io/docs/en/getting-started * Mocha Documentation: https://mochajs.org/#get-started * JUnit Documentation: https://junit.org/junit5/docs/current/user-guide/ * Istanbul Documentation: https://istanbul.js.org/docs/ * CodeCoverage Documentation: https://www.codecoverage.com/ **Submission Guidelines:** Please submit your test suite, report, and presentation (slides or video) as a zip file or a link to a GitHub or GitLab repository. Please ensure that your submission includes all the required deliverables. **Leave a Comment or Ask for Help:** If you have any questions or need help with this lab, please leave a comment below.