Code Coverage

Definitions

1. A metric that measures the percentage of source code executed during automated testing. While high coverage does not guarantee correctness, low coverage reliably indicates untested code paths. Common targets are 80% line coverage, though 100% is often impractical.

   In plain English: A number that shows what percentage of your code is actually tested by your automated tests, helping find blind spots.

   Example: "We have 95% code coverage and the app still crashes in production. Turns out we tested the happy paths 95 different ways."

Related Terms

• A/B Testing
• Bug
• Dependency Injection
• Mocking
• Prometheus
• Pure Function
• pytest
• Test-Driven Development
• Testing
• Unit Testing
• Snapshot Testing
• Contract Testing
• Mutation Testing
• Shift Left
• Property-Based Testing
• Acceptance Testing
• Assertion
• BDD
• Benchmark Suite
• Breakpoint
• Code Review Bot
• End-to-End Test
• Mock Object
• Test Container
• Test Coverage
• Test Mock
• Test Spy