Lesson 963 of 2116
Test Coverage Strategy With AI: Beyond 100% Line Coverage
100% line coverage is achievable and meaningless. AI can help design test coverage strategies that target the behaviors that actually matter — edge cases, integration boundaries, and the failure modes you've actually seen in production.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1The premise
- 2test coverage
- 3edge case
- 4integration testing
Concept cluster
Terms to connect while reading
Section 1
The premise
Coverage strategy matters more than coverage percentage; AI can help design strategy that targets meaningful behaviors.
What AI does well here
- Identify edge cases the existing tests miss (null/undefined/empty/boundary/concurrent)
- Suggest integration tests at boundaries between components
- Map known production failures to test gaps
- Generate test cases for security-relevant behaviors (auth, input validation, output encoding)
What AI cannot do
- Substitute for thinking about what your service actually does and how it can fail
- Replace the engineer's domain knowledge of likely failure modes
- Catch every test gap (some only show up in production)
Key terms in this lesson
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