---
title: "testNotHandled(with:completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclustertestcluster/testnothandled(with:completionhandler:)"
---

# testNotHandled(with:completionHandler:)

## Declaration

```swift
func testNotHandled(with params: MTRTestClusterClusterTestNotHandledParams?, completionHandler: @escaping @Sendable ((any Error)?) -> Void)
```

```swift
func testNotHandled(with params: MTRTestClusterClusterTestNotHandledParams?) async throws
```