---
title: "testNotHandled(with:completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterunittesting/testnothandled(with:completion:)"
---

# testNotHandled(with:completion:)

## Declaration

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

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