✅ See Test Results While You Type
Manually running tests after every change? Slow. Live Unit Testing runs tests automatically, shows results inline as you code.
Enable Live Unit Testing
Visual Studio Enterprise 2022: 1. Test → Live Unit Testing → Start 2. Wait for initial test run 3. Code editor shows inline indicators Configure: Tools → Options → Live Unit Testing - Include/exclude specific projects - Set test timeout - Configure parallelization
✅ Benefits
- Instant feedback: Know immediately if change broke tests
- Visual coverage: See untested code at a glance (blue dashes)
- Faster TDD: Red-Green-Refactor cycle accelerated
- Prevent regressions: See failing tests before commit
⚠️ Performance Tips
- Exclude slow tests: Use
[Trait("Category", "Integration")] - Pause when needed: Ctrl+Q → “Pause Live Unit Testing” for heavy operations
- Configure scope: Don’t run on entire solution if huge
“Enabled Live Unit Testing on legacy codebase. Saw blue dashes everywhere—60% untested. Wrote tests, watched dashes turn green. Now refactor with confidence. Best VS feature ever.”