---
title: XCTestErrorDomain
framework: xctest
role: symbol
role_heading: Global Variable
path: xctest/xctesterrordomain
---

# XCTestErrorDomain

The error domain for errors that can occur while the test is waiting to fulfill expectations.

## Declaration

```swift
let XCTestErrorDomain: String
```

## See Also

### Waiting for Expectations

- [fulfillment(of:timeout:enforceOrder:)](xctest/xctestcase/fulfillment(of:timeout:enforceorder:).md)
- [wait(for:)](xctest/xctestcase/wait(for:).md)
- [wait(for:enforceOrder:)](xctest/xctestcase/wait(for:enforceorder:).md)
- [wait(for:timeout:)](xctest/xctestcase/wait(for:timeout:).md)
- [wait(for:timeout:enforceOrder:)](xctest/xctestcase/wait(for:timeout:enforceorder:).md)
- [waitForExpectations(timeout:handler:)](xctest/xctestcase/waitforexpectations(timeout:handler:).md)
- [XCWaitCompletionHandler](xctest/xcwaitcompletionhandler.md)
- [XCTestError](xctest/xctesterror.md)
- [XCTestError.Code](xctest/xctesterror/code.md)