Test Case Writing, Test Data Collection

Interview Questions on Test Case Writing

1. What is Test Case?
A set of input values, execution preconditions, expected results and execution
postconditions, developed for a particular objective or test condition, such as
to exercise a particular program path or to verify compliance with a specific
requirement.
2. Who Prepare Test Cases?
In System Testing Level Testers prepare test cases under the guidance of Test Lead.
In Unit Testing Level developers prepare Unit test cases.
3. Give a sample Test Case Template?
Sample Test Case Template:
i. Test Case Id: a Unique name/number (Alfa-numeric.
ii. Test Case Name: Name of Test Case
iii. Test Suite ID: Unique name/number (Alfa-numeric.
iv. Pre-Condition: Status before Test Case Execution
v. Steps: Steps for Executing the Test Case
vi. Post-Condition: Status After Test Case Execution
vii. Expected Result: Expected Result as per Requirements
viii. Actual Results:
ix. Test Results: Pass / Fail
x. Remarks: Comments (Optional.
Note 1: You prepare this Test Case Template in Excel Sheet
Note 2: Test Case Template may vary from one company from another and one project
to another.
Note 3: In the above template Actual Results and Test Results fields can be filled
in Test Execution phase, Remaining fields in Test Design phase.
4. What is Test Data?
Data that exists (for example, in a database. before a test is executed, and that
affects or is affected by the component or system under test.
5. What is the Relation between Test Case and Test Data?
We use Test data as input for executing test cases
6. How to collect Test Data?
Some test data we (testers. prepare,
Some Test data we collect from Developers,
Some Test Data we collect from Customers and other sources.
7. Is Test Data Mandatory for every Test Case?
Test Data is not mandatory for every test case.
8. What is Test Procedure?
A document specifying a sequence of actions for the execution of a test. Also known
as test script or manual test script.
9. What are Database Test Cases?
Database Test cases for verifying Data integrity, Data Manipulations
(Add/Edit/Delete., Data comparisons, Data retrievals and search operations.
10. How we derive Test cases?
We derive test cases from Test scenarios, Test scenarios derived from Requirements
Another method, we can derive test cases from use cases(if available.
11. What is Use Case?
A sequence of transactions in a dialogue between an actor and a component or
system with a tangible result, where an actor can be a user or anything that can
exchange information with the system.
12. What is the difference between Use Case and Test Case?
Use case is a Business scenario or User scenario, we derive test cases from
use cases.
13. What is Positive Test case?
It is intended for Verifying a Component or System's behavior using Valid inputs.
14. What is Negative Test Case?
It is intended for Verifying a Component or System's behavior using Invalid inputs.
15. What is Test Suite?
Series of Test Cases is called Test Suite or Test Batch or Test Set.
16. What is Test Environment?
An environment containing hardware, instrumentation, simulators, software tools,
and other support elements needed to conduct a test.
17. What is Test Condition?
An item or event of a component or system that could be verified by one or
more test cases, e.g. a function, transaction, feature, quality attribute.