Mutation Testing

Fault Detection Capability

Indicates the test's capability to reveal faults in the system under test.

Mutation testing → change small parts of the code and check if the tests can find the introduced fault

• Example

Hypotheses for Mutation Testing

• Idea of mutation testing
• Mutants
• Size of mutants
• Terminology

Automation

We want to automate the mutation process

• Mutation Operators
• Categories of mutation operators:
• Common mutation operators

Mutation Analysis & Testing

• Process

Mutation score: $killed mutants / mutants$ → mutation analysis

Mutation Testing : assessing the quality of a test suite by computing its mutation score

• Equivalent Mutants