1. 2017/3/25
Test Case
Upgrade from “Test Case-Training Material v1.4.ppt” of Testing basics
Authors: NganVK Version: 1.4 Last Update: Dec-2005

2. Purpose: Writing Test Case Attendees: Testers Duration: 2 hours
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Introduction
Purpose: Writing Test Case
Attendees: Testers
Duration: 2 hours
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3. After the course, student will be able to:
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Objectives
After the course, student will be able to:
Understanding the way to create a Test Case
Using Test Case checklist to review a Test Case
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4. Agenda Design test case Write test case Test case checklist
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5. Test Case Detail design Test case SRS Test script Test Plan Test data
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Test Case
Test Preparation
Detail design
SRS
Test Plan
Test case
Test script
Test data
This slide used to show the input and output of create testing plan
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6. Test Script: scripts that use for testing or check the output
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Concepts
Test Case: A set of test inputs, execution conditions, and expected results developed for a particular objective, such as to exercise a particular program path or to verify compliance with a specific requirement.
Test Script: scripts that use for testing or check the output
Test Data: data is using for testing
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7. Why Test Case? Design scenario (test conditions) before test execution
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Why Test Case?
Design scenario (test conditions) before test execution
Predict expected result
Help new testers familiar with existing application/system without reading requirement
Design test case before execution
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8. Good Test Case Has a high probability of finding errors
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Good Test Case
Has a high probability of finding errors
Clear of purpose
Well organized
Reviewable
Maintainable
Useful to other testers
Ex: A person visit a doctor because of an overall felling of malaise. If the doctor runs some laboratory tests but do not detect the problem, we do not call the laboratory tests “successful”. They were unsuccessful tests because the patient is still ill, and the patient may question the doctor’s ability as a diagnostician.
However, if a laboratory test determines that the patient has a peptic ulcer (loet da da`y), the test is successful because the doctor can now begin the these words in the proper sense.
=> Similar, of course, is that we should think of the program, as we begin testing it, as the sick patient
Questions: What is bad test case?
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9. Design Test Case
White Box Testing: Uses specific knowledge of programming code to examine outputs
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10. White Box Testing - Example
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White Box Testing - Example
Instruction coverage
Decision coverage
Condition coverage
Decision/Condition coverage
Multi condition coverage
Give trainee material to show the example in White_Black_Box_Test_Example.doc
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11. Design Test Case Black Box Testing:
Assess how well a program meets its requirements
Focusing on testing functional requirements
I/P
O/P
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12. Black Box Testing - Example
A large IT company is in the process of revising salary structure for its employees. The salary will be revised on the check point for all employees with at least one year seniority
The rule for salary revision are provided below:
Check point: 90 -> 100: Increase existing salary by 20%
Check point: 80 -> 89: Increase existing salary by 15%
Check point: 75 -> 79: Increase existing salary by 10%
Check point: < 75: No increase
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13. Black Box Testing - Technique
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Black Box Testing - Technique
Expand Conditions into Test Cases using
Boundary Value Analysis: a minimum or maximum input, internal, or output value specified for a system or component
Equivalence Partitioning: one or a few cases are chosen to represent an entire equivalence class
Decision Tables
Case study
Give trainee material to show the example in White_Black_Box_Test_Example.doc
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14. Fsoft - Test Case Structure
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Fsoft - Test Case Structure
Test case specifications
Test procedures
Pass/ Fail criteria: List all results that decide test case is passed or failed
Dependencies: List all test cases that must be done before performing this case
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15. Test Case Specifications
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Test Case Specifications
List cases/scenario that will be tested
Interface
Test with valid data
Test with invalid data:
Mandatory field
Min, Max length
Incorrect type, format
Boundary, etc
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16. Test Procedure
Test actions taken by the actor when executing a test case
Test input: the actual values input by the actor at each step/action
Expected result: the expected response from the application for a given step/action
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17. Pass/Fail criteria - Inter-case dependencies
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Pass/Fail criteria - Inter-case dependencies
Pass/Fail criteria: List all results that decide test case is passed or failed
Inter-case dependencies: List all test cases that must be done before performing this case
Inter-case dependencies: login done before execute a function
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18. Recorded automatically
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Test Script
Recorded automatically
Coded manually: using test tools or standard programming languages like VB, C/C++, Java or SQL
Test stub: temporary implementation of part of a program for unit test purposes
Test driver: program which sets up an environment to call a module (or function) for testing
Test scripts may be recorded automatically or coded manually using test tools or standard programming languages like VB, C/C++, Java or SQL
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19. Prepare data test for scenarios
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Test Data
Prepare data test for scenarios
Tools
Manual
Tool: Data Advance Generator
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20. Navigation conditions Validate text fields Validate number fields
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GUI Test Case
Aesthetic conditions
Navigation conditions
Validate text fields
Validate number fields
Validate date fields
Aesthetic Conditions: Screen background, Screen font, location of fields
Navigation Conditions: main menu, sub menu, toolbar, tab order, cursor, combo box, radio box, check box
Combo box: check LOV (list of values) and the order of LOV
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21. GUI Test Case - Validate text fields
Check mandatory fields
Max length
Special characters/htlm tags (name, , address, password)
Space at the beginning and the end of string
Full-size, haft-size characters (Japanese)
Case-sensitive or not
Unicode
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22. GUI Test Case - Validate number fields
Check mandatory fields
Max/Min values
Integer/Decimal numbers
Positive/Negative numbers
Check conversion of format (decimal symbol, digit grouping symbol, display leading zero)
Display decimal symbol, digit grouping symbol, leading zero
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23. GUI Test Case - Validate date fields
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GUI Test Case - Validate date fields
Check mandatory fields
Check date format (inputted date, conversion of inputted date)
Compare inputted date to current date (if required)
Compare dates based on business rules
Compare “From Date” to “To Date”
Check format date with regional setting
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24. Reference: http://www.fsoft.com.vn/FQMS/FSOFT/Template
Test case templates
Word
Excel
Reference:
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25. Test Case Review Checklist
Who will use TC checklist?
Why do have to use TC checklist?
Check template of test plan
Check required information in TC
Template
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26. Q & A
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