# assertFileIncludes

Source: https://smartassertions.dev/assertions/assertFileIncludes/
Index of every page: https://smartassertions.dev/llms.txt

Assert that a file includes a given substring.

## Usage

```ts
import { assertFileIncludes } from "@kensio/smartass";

const filePath = "README.md";

assertFileIncludes(filePath, "Installation");

// This validates file contents at runtime without changing the path type.
```

## Source

Source file: [`src/assert/file-includes/file-includes.assert.ts`](https://github.com/KensioSoftware/smartass/blob/main/src/assert/file-includes/file-includes.assert.ts)