---
title: testutil.fail() function
description: >
  `testutil.fail()` causes the current script to fail.
menu:
  flux_v0_ref:
    name: testutil.fail
    parent: internal/testutil
    identifier: internal/testutil/fail
weight: 201
---

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`testutil.fail()` causes the current script to fail.



##### Function type signature

```js
() => bool
```

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For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
{{% /caption %}}