---
title: "XCTFail(_:file:line:)"
framework: XCTest
role: symbol
role_heading: Function
platforms: []
path: xctest/1500970-xctfail
---

# XCTFail(_:file:line:)

This function generates a failure immediately and unconditionally.

## Declaration

```swift
func XCTFail(_ message: String = "", file: StaticString = #filePath, line: UInt = #line)
```

## Parameters

- `message`: An optional description of the assertion, for inclusion in test results.
- `file`: The file where the failure occurs. The default is the filename of the test case where you call this function.
- `line`: The line number where the failure occurs. The default is the line number where you call this function.