# Unit Test

**Description**:

Validates that a [unit of code](https://blog.fiftywords.co/unit-of-code) behaves correctly in a simulated situation.

**Features**:

- VERY fast
- Run 100% in memory
- Replicable in any environment
- Independent from other unit tests
- Run before, during and after development
- Only validates one condition (per unit test): [RED](https://blog.fiftywords.co/exit-point)

**Structure**:

[AAA](https://blog.fiftywords.co/aaa)

**Name structure**:

[USE](https://blog.fiftywords.co/use)

[🇨🇴 Versión en Español](https://blog.cincuentapalabras.co/prueba-unitaria)