---
title: start()
framework: xctest
role: symbol
role_heading: Instance Method
path: xctest/xctestrun/start()
---

# start()

Starts a test run.

## Declaration

```swift
func start()
```

## Discussion

Discussion This method must not be called more than once.

## See Also

### Performing Test Runs

- [stop()](xctest/xctestrun/stop().md)
- [record(_:)](xctest/xctestrun/record(_:).md)