# Source: https://docs.crewai.com/en/concepts/testing.md

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crewai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Testing

> Learn how to test your CrewAI Crew and evaluate their performance.

## Overview

Testing is a crucial part of the development process, and it is essential to ensure that your crew is performing as expected. With crewAI, you can easily test your crew and evaluate its performance using the built-in testing capabilities.

### Using the Testing Feature

We added the CLI command `crewai test` to make it easy to test your crew. This command will run your crew for a specified number of iterations and provide detailed performance metrics. The parameters are `n_iterations` and `model`, which are optional and default to 2 and `gpt-4o-mini` respectively. For now, the only provider available is OpenAI.

```bash  theme={null}
crewai test
```

If you want to run more iterations or use a different model, you can specify the parameters like this:

```bash  theme={null}
crewai test --n_iterations 5 --model gpt-4o
```

or using the short forms:

```bash  theme={null}
crewai test -n 5 -m gpt-4o
```

When you run the `crewai test` command, the crew will be executed for the specified number of iterations, and the performance metrics will be displayed at the end of the run.

A table of scores at the end will show the performance of the crew in terms of the following metrics:

<center>**Tasks Scores (1-10 Higher is better)**</center>

| Tasks/Crew/Agents  | Run 1 | Run 2 | Avg. Total |            Agents            | Additional Info                |
| :----------------- | :---: | :---: | :--------: | :--------------------------: | :----------------------------- |
| Task 1             |  9.0  |  9.5  |   **9.2**  |     Professional Insights    |                                |
|                    |       |       |            |          Researcher          |                                |
| Task 2             |  9.0  |  10.0 |   **9.5**  | Company Profile Investigator |                                |
| Task 3             |  9.0  |  9.0  |   **9.0**  |      Automation Insights     |                                |
|                    |       |       |            |          Specialist          |                                |
| Task 4             |  9.0  |  9.0  |   **9.0**  |     Final Report Compiler    | Automation Insights Specialist |
| Crew               |  9.00 |  9.38 |   **9.2**  |                              |                                |
| Execution Time (s) |  126  |  145  |   **135**  |                              |                                |

The example above shows the test results for two runs of the crew with two tasks, with the average total score for each task and the crew as a whole.