1. What is a Test Case?

A test case is a step-by-step set of actions performed to verify a specific functionality or requirement of a software application.

A test case is essentially a written document that outlines what needs to be tested in a software application. It serves as a guide to ensure that developers and testers know exactly what actions to take to verify that a feature or requirement is working as intended. By following these predefined steps, testers can systematically check the system and confirm its functionality.

Think of a test case like a recipe in cooking. Just as a recipe lists all the ingredients and the steps necessary to prepare a dish, a test case details the specific actions required to test a software feature and what results to expect. If you skip a step in a recipe, the dish may not turn out right, similar to how missing a step in a test case can lead to undetected software issues.

✏ Typical Components of a Test Case: Field Description Test Unique identifier for tracking Case ID Test What is being tested Objectiv e Precondi Any setup or conditions needed before test tions execution Test Detailed steps to execute the test Steps Expecte What the system should do after executing d Result the test Actual What actually happened (during test Result execution) Status Pass / Fail / Blocked Remarks Additional comments or screenshots if needed

Test cases typically have several key components that help structure them. These include a unique identifier (Test Case ID), the objective of what is being tested, preconditions that need to be met before testing begins, the detailed steps to perform the test, the expected results of those steps, and what actually happened during testing. Additionally, there are status indicators (like Pass/Fail) to communicate the outcome, and remarks for any additional notes or evidence, such as screenshots.

Imagine writing down the steps for a science experiment. Each step must clearly state what you need to do (like measure a specific amount of liquid), what you should see if the experiment works correctly (like a color change), and noting anything that goes wrong (like no color change). These components help ensure that anyone repeating the experiment has a clear understanding of what is expected.

🔍 Example Test Case Field Sample Entry Test TC_Login_01 Case ID Test Verify login with valid Objectiv credentials e Precond User is registered and on the itions login page Test 1. Enter username Steps 2. Enter password 3. Click Login Expecte User is redirected to the d Result dashboard Actual User redirected to dashboard Result Status Pass Remark N/A

The example test case provided shows how a test case is structured using a real-life scenario – logging into a system. It gives a unique identifier (TC_Login_01), describes the objective (verifying login with valid credentials), lists preconditions (the user must be registered and on the login page), and outlines specific steps to follow in order to execute the test. The expected result is also identified (the user should be redirected to the dashboard), alongside the actual result and the overall status of the test.

Think about trying to log into your email account. The steps might include opening the email app (the precondition), entering your username and password (the test steps), and expecting to be taken to your inbox afterward (the expected result). If you were to keep track of this with a checklist, it would be like having a test case that details each action and what should happen next.

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