---
title: "fulfillment(of:timeout:enforceOrder:)"
framework: xctest
role: symbol
role_heading: Instance Method
path: "xctest/xctestcase/fulfillment(of:timeout:enforceorder:)"
---

# fulfillment(of:timeout:enforceOrder:)

Waits on a group of expectations for up to the specified timeout, optionally enforcing their order of fulfillment.

## Declaration

```swift
@nonobjc func fulfillment(of expectations: [XCTestExpectation], timeout seconds: TimeInterval = .infinity, enforceOrder enforceOrderOfFulfillment: Bool = false) async
```

## Parameters

- `expectations`: An array of expectations the test must satisfy.
- `seconds`: The time, in seconds, the test allows for the fulfillment of the expectations. The default timeout allows the test to run until it reaches its execution time allowance.
- `enforceOrderOfFulfillment`: If doc://com.apple.documentation/documentation/Swift/true, the test must satisfy the expectations in the order they appear in the array.

## Discussion

Discussion Use this concurrency-safe alternative to wait(for:timeout:enforceOrder:) in your Swift code. Expectations can only appear in the array once. The method can return before the timeout if the test fulfills all the expectations you provide. note: If you don’t specify a timeout when calling this function, enable test timeouts to prevent unfulfilled expectation from hanging the test.

## See Also

### Waiting for Expectations

- [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)
- [XCTestErrorDomain](xctest/xctesterrordomain.md)