TAILIEUCHUNG - Lecture Software testing and analysis - Chapter 11: Combinatorial testing

This chapter include objectives: Understand rationale and basic approach for systematic combinatorial testing, learn how to apply some representative combinatorial approaches, understand key differences and similarities among the approaches. | Combinatorial testing SOFTWARE TESTING c 2007 Mauro Pezze Michal Young Ch 11 slide 1 Combinatorial testing Basic idea Identify distinct attributes that can be varied - In the data environment or configuration - Example browser could be IE or Firefox operating system could be Vista XP or OSX Systematically generate combinations to be tested - Example IE on Vista IE on XP Firefox on Vista Firefox on osx . Rationale Test cases should be varied and include possible corner cases SOFTWARE TESTING c 2007 Mauro Pezze Michal Young Ch 11 slide 3 Learning objectives Understand rationale and basic approach for systematic combinatorial testing Learn how to apply some representative combinatorial approaches - Category-partition testing - Pairwise combination testing - Catalog-based testing Understand key differences and similarities among the approaches - and application domains for which they are suited TESTING r r J c 2007 Mauro Pezze Michal Young Ch 11 slide 2 Key ideas in combinatorial approaches Category-partition testing - separate manual identification of values that characterize the input space from automatic generation of combinations for test cases Pairwise testing - systematically test interactions among attributes of the program input space with a relatively small number of test cases Catalog-based testing - aggregate and synthesize the experience of test designers in a particular organization or application domain to aid in identifying attribute values SOFTWARE TESTING c 2007 Mauro Pezze Michal Young Ch 11 slide 4 Category partition manual steps 1. Decompose the specification into independently testable features - for each feature identify parameters environment elements - for each parameter and environment element identify elementary characteristics categories 2. Identify relevant values - for each characteristic category identify classes of values normal values boundary values special values error values SOFTWARE 3. Introduce

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