📚 Topic Summary
An "unplugged" activity means we're learning about computer science concepts without using a computer! In this activity, we'll explore test cases. Think of a test case as a detailed plan to check if something works correctly. Instead of writing code, we'll use everyday scenarios to understand how test cases help us find problems and make sure things work as expected. We are essentially thinking through all possible scenarios before we ever write a single line of code!
Imagine you're testing a vending machine. You need test cases to check if it gives the right change, accepts different bills, and handles out-of-stock items. Test cases help ensure reliability by covering all the possible situations your program might face.
🧠 Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Test Case |
A. A specific input and expected output to verify a system's behavior. |
| 2. Bug |
B. A flaw or defect in a system that causes it to produce an incorrect or unexpected result. |
| 3. Scenario |
C. A sequence of events or actions that represent a possible use of the system. |
| 4. Validation |
D. The process of checking if the system meets the specified requirements and fulfills its intended purpose. |
| 5. Requirement |
E. A condition or capability needed by a user to solve a problem or achieve an objective. |
Answer Key:
- 🔍 1 - A
- 💡 2 - B
- 📝 3 - C
- 🧪 4 - D
- 🌍 5 - E
📝 Part B: Fill in the Blanks
Test cases are important for ensuring _________ and detecting _________. A good test case includes specific _________ and expected _________. When writing test cases, consider different _________ and edge cases. _________ ensures that the system meets its intended purpose.
Word Bank: bugs, scenarios, input, output, validation, quality
Answer: Test cases are important for ensuring quality and detecting bugs. A good test case includes specific input and expected output. When writing test cases, consider different scenarios and edge cases. Validation ensures that the system meets its intended purpose.
🤔 Part C: Critical Thinking
Imagine you are testing a simple online calculator that only adds two numbers. Describe three different test cases you would use to ensure it works correctly, including the input and the expected output for each case.