Lesson
Test cases
Create practical QA artifacts that make testing work clear and repeatable.
Learning goals
Understand the concept, identify where it is used, and apply it in a practical QA task.
Theory explanation
Test cases is an essential QA topic. In real teams, QA engineers use it to reduce product risk and make release decisions with better evidence.
Key terms
quality, risk, requirement, expected result, actual result, evidence
Real-world example
A team releases a checkout page. QA checks critical flows, documents issues, and helps the team understand release risk.
Step-by-step explanation
Read the requirement, identify risk, design checks, execute tests, document results, communicate findings.
Common mistakes
Testing without clear expected results, skipping edge cases, and writing vague bug reports.
Practical use case
Create a small QA artifact for a login or checkout flow.
Summary
Use Test cases to make testing structured, clear, and useful for the whole team.
Slides
Slide 1
Test cases: Slide 1
Key point 1: apply Test cases through examples and practice.
Slide 2
Test cases: Slide 2
Key point 2: apply Test cases through examples and practice.
Slide 3
Test cases: Slide 3
Key point 3: apply Test cases through examples and practice.
Slide 4
Test cases: Slide 4
Key point 4: apply Test cases through examples and practice.
Slide 5
Test cases: Slide 5
Key point 5: apply Test cases through examples and practice.
Examples
Real QA example
A team releases a checkout page. QA checks critical flows, documents issues, and helps the team understand release risk.
Positive test case: login with valid credentials
ID: TC-LOGIN-001 Priority: High Preconditions: User account exists and is active. Test data: [email protected], password=Password123 Steps: 1. Open the login page. 2. Enter the valid email. 3. Enter the valid password. 4. Click Login. Expected result: The user is authenticated, redirected to the dashboard, and the dashboard shows the user's learning progress.
Negative test case: invalid password
ID: TC-LOGIN-002 Priority: High Preconditions: User account exists. Test data: [email protected], password=WrongPassword Steps: 1. Open the login page. 2. Enter the valid email. 3. Enter an invalid password. 4. Click Login. Expected result: The user stays on the login page, no session is created, and a clear error message explains that credentials are invalid.
Boundary test case: password length
ID: TC-REG-004 Priority: Medium Rule: Password must be at least 8 characters. Data set: - 7 characters: rejected with validation message. - 8 characters: accepted when all other password rules pass. - 9 characters: accepted when all other password rules pass. Expected result: The boundary is enforced exactly at 8 characters.
Interactive Practice
analysis
Your task
Review a short requirement and identify one testing risk related to Test cases.
Expected answer guide
A clear risk with a matching test idea.