book

Practical Test Design

by István Forgács, Attila Kovács

September 2019

Intermediate to advanced

331 pages

9h 21m

English

BCS, The Chartered Institute for IT

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Front Cover
Half-Title Page
BCS, The Chartered Institute for it
Title Page
Copyright Page
Contents
List of figures and tables
Authors
Foreword
Acknowledgements

Abbreviations
Glossary
Letter to the reader
Preface − Testing is complex
1. Introduction
The importance of software testingWhat is test design exactly?Why should tests be designed?When do we design tests?Important test design-related considerationsSummary
2. Example Specification: Ticket Vending Machine
Summary
Part I Necessary Steps Before Test Design
3. Risk Management and Test Optimisation
What is risk?Scoring the risksRisk managementRisks, costs and qualityRisk and optimisationExample: risk analysis of TVMKey takeaways
4. Defect Prevention
Defect prevention methodsFrom requirements to specification (‘Two lifts in a 10-storey building’ example)Refinement of the ticket vending machine specificationKey takeaways
Part II Traditional Test Design
5. Domain-Based Testing
Equivalence partitioningBoundary value analysisDomain analysisChallenges in domain-based testingTVM exampleMethod evaluationTheoretical backgroundKey takeawaysExercises
6. State Transition Testing
Stateful and stateless systemsStates, transitions, conditionsExample: RoboDogValidate your state transition graphTest selection criteria for state transition testingAll-transition-state criterionAll-transition–transition criterionExample: Collatz conjectureWhen multiple techniques are used togetherState transition testing in TVM exampleMethod evaluationTheoretical backgroundKey takeawaysExercises
7. Business Rule-Based Testing
Decision table testingCause–effect graphsMethod evaluationTheoretical backgroundKey takeawaysExercises
8. Scenario-Based Testing
Use casesUser storiesMethods evaluationTheoretical backgroundKey takeawaysExercises
9. Combinative and Combinatorial Testing
Combinative techniquesCombinatorial techniquesComparison of the techniquesClassification treesTVM exampleMethod evaluationTheoretical backgroundKey takeawaysExercises
10. On-The-Fly Test Design
Exploratory testingSession-based testingTVM exampleMethod evaluationTheoretical backgroundKey takeawaysExercise
Part III Automated Test Design
11. Model-Based Testing
What is a model?What is model-based testing?Test design and MBTThe process of MBTModelling languagesAbstraction levels in MBTKeyword-driven testingTest selection criteriaTest case generationSome MBT toolsMethod evaluationKey takeawaysExercise
12. Gherkin-Based MBT
First exampleThe modelling languageGiven, when, then, and, isTest design maintenanceTicket vending machine exampleMethod evaluationTheoretical backgroundKey takeawaysExercises
13. MBT Using Graphs – Graphwalker
Making GraphWalker workExecuting GraphWalker for the TVM modelTesting our TVM with GraphWalkerMethod evaluationKey takeawaysExercise
14. Testing The TVM – Summary and Method Comparison
Testing TVM by STT, EP and BVATesting TVM by use case testing, EP and BVACombinative testingTesting TVM by other methodsComparison
15. Conclusions and Recommendations
Appendix A − TVM models
Appendix B − Test code for demonstrating GraphWalker
Appendix C − POM.XML for GraphWalker
Appendix D − Solutions to the exercises
References
Index
Back Cover

Content preview from Practical Test Design

LIST OF FIGURES AND TABLES

Figure 1.1 Test design in the test software development life cycle

Figure 2.1 Selecting five standard tickets in the TVM interface

Figure 2.2 Payment process with different possibilities

Figure 2.3 Payment snapshot after clicking the €5 in the previous screen

Figure 2.4 Payment can be finished

Figure 2.5 Successful transaction

Figure 2.6 ‘Reduced’ mode

Figure 2.7 Payment in ’Reduced’ mode

Figure 3.1 Risk diagram and risk matrix

Figure 3.2 Optimum cost of testing. The optimal cost of testing is the sum of the testing cost and the late correcting cost

Figure 3.3 Total cost optimum of a high-risk function. The total cost optimum of a high-risk function is above the total cost optimum of a low-risk function

Figure 4.1

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Practical Test Design

by István Forgács, Attila Kovács

LIST OF FIGURES AND TABLES

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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