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> We understand you have a problem and are in a hurry, but please provide us with some info to make it much more likely for your issue to be understood, worked on and resolved quickly.

- Sinon version : _please verify that the bug exists in the latest Sinon release_
- Environment :
- Example URL :
- Other libraries you are using:

**What did you expect to happen?**

**What actually happens**

**How to reproduce**

> Describe _with code_ how to reproduce the faulty behaviour,
> or link to code on JSBin or similar

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<details>
    <summary>Really long code sample or stacktrace</summary>

    If you need to provide a dump of a stack trace or
    other lengthy material, such as 80 lines of example code,
    please stuff it in a `<details>` tag such as this
    to make the issue more readable. Thanks.

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