**Course Title:** Testing Frameworks: Principles and Practices **Section Title:** Introduction to Software Testing **Topic:** Explore the testing lifecycle through a simple project.(Lab topic) **Objective:** In this lab topic, you will apply the concepts learned in the previous topics to a real-world scenario. You will create a simple project, go through the testing lifecycle, and experience how testing is an integral part of software development. By the end of this lab, you will be able to: 1. Apply the testing lifecycle to a real-world project 2. Identify the different stages of the testing lifecycle 3. Create and execute manual tests for a simple project 4. Understand how to use testing frameworks and tools to support the testing lifecycle **Lab Project Overview:** You will create a simple calculator application that performs arithmetic operations (addition, subtraction, multiplication, and division). The application will take two numbers as input and produce the result based on the selected operation. **Step 1: Requirements Gathering** As a tester, you need to understand the requirements of the project. For this lab, the requirements are straightforward: * The application should take two numbers as input * The application should support addition, subtraction, multiplication, and division operations * The application should produce the correct result based on the selected operation You can review the requirements document for this project here: [Sample Requirements Document](https://www.example.com/simple-calculator-requirements.pdf) **Step 2: Test Planning** In this stage, you need to plan your testing approach. This includes: * Identifying the test scope (what will you test) * Identifying the test environments (where will you test) * Selecting the test tools and frameworks (what tools will you use to test) For this lab, your test plan should include: * Testing the arithmetic operations (addition, subtraction, multiplication, and division) * Testing the input validation (checking that the application handles invalid input correctly) * Testing the error handling (checking that the application handles errors correctly) You can review a sample test plan for this project here: [Sample Test Plan](https://www.example.com/simple-calculator-test-plan.pdf) **Step 3: Test Case Development** In this stage, you need to create test cases based on your test plan. A test case is a set of inputs, expected results, and execution conditions. For this lab, you can use the following test case template: | Test Case ID | Test Case Description | Inputs | Expected Results | Execution Conditions | | --- | --- | --- | --- | --- | | 1 | Test addition | 2 + 2 | 4 | Input valid numbers | | 2 | Test subtraction | 2 - 2 | 0 | Input valid numbers | | 3 | Test multiplication | 2 * 2 | 4 | Input valid numbers | | 4 | Test division | 2 / 2 | 1 | Input valid numbers | You can create more test cases based on the requirements and test plan. **Step 4: Test Data Development** In this stage, you need to create test data that will be used to execute the test cases. For this lab, you can use the following test data: | Test Data ID | Input 1 | Input 2 | Expected Result | | --- | --- | --- | --- | | 1 | 2 | 2 | 4 | | 2 | 2 | 2 | 0 | | 3 | 2 | 2 | 4 | | 4 | 2 | 2 | 1 | You can create more test data based on the requirements and test plan. **Step 5: Test Environment Setup** In this stage, you need to set up the test environment that will be used to execute the test cases. For this lab, you can use a simple calculator application that you can create using a programming language such as Java or Python. You can review a sample implementation of the calculator application in Java here: [Sample Calculator Implementation](https://www.example.com/simple-calculator-java.zip) **Step 6: Test Case Execution** In this stage, you need to execute the test cases using the test data and test environment. You can use a testing framework such as JUnit or TestNG to execute the test cases. You can review a sample implementation of the test cases using JUnit here: [Sample Test Case Implementation](https://www.example.com/simple-calculator-test-java.zip) **Step 7: Test Result Analysis** In this stage, you need to analyze the test results and identify defects or errors. You can use the test results to identify areas of improvement and make recommendations for future development. You can review a sample test result analysis report here: [Sample Test Result Analysis Report](https://www.example.com/simple-calculator-test-result-analysis.pdf) **Conclusion:** In this lab, you have applied the testing lifecycle to a real-world project. You have created test cases, test data, and test environment, and executed the test cases using a testing framework. You have also analyzed the test results and identified areas of improvement. **Practical Takeaways:** 1. The testing lifecycle is an iterative process that involves multiple stages, including test planning, test case development, test data development, test environment setup, test case execution, and test result analysis. 2. The testing lifecycle is an integral part of software development, and it should be applied to every project, big or small. 3. The testing lifecycle can be applied to agile development methodologies, such as Scrum or Kanban, as well as traditional waterfall methodologies. **Additional Resources:** 1. ISTQB (International Software Testing Qualifications Board) - [ISTQB.org](https://www.istqb.org/) 2. Selenium - [Seleniumhq.org](https://www.seleniumhq.org/) 3. Test-Driven Development (TDD) - [Tutorialspoint.com](https://www.tutorialspoint.com/software_testing_dictionary/test-driven_development.htm) **What's Next:** In the next topic, we will discuss unit testing and why it matters. We will explore the concepts of unit testing, including unit test frameworks and unit test-driven development. **Ask for Help/Leaves Comments:** If you have any questions or need further clarification on any of the concepts discussed in this lab, please feel free to ask for help or leave comments.