## Test Coverage

### Running Coverage

```bash
# Basic coverage
go test -cover ./...

# Generate coverage profile
go test -coverprofile=coverage.out ./...

# View coverage in browser
go tool cover -html=coverage.out

# View coverage by function
go tool cover -func=coverage.out

# Coverage with race detection
go test -race -coverprofile=coverage.out ./...
```

### Coverage Targets

| Code Type | Target |
|-----------|--------|
| Critical business logic | 100% |
| Public APIs | 90%+ |
| General code | 80%+ |
| Generated code | Exclude |

### Excluding Generated Code from Coverage

```go
//go:generate mockgen -source=interface.go -destination=mock_interface.go

// In coverage profile, exclude with build tags:
// go test -cover -tags=!generate ./...
```