Two options are [**mocha-performance**][1] & [**benchtest**][2]

# mocha-performance

*Runtime performance analysis off the back of a mocha test suite*

1. Install with

    ```bash
    npm install mocha-performance
    ```

2. Add **`--allow-natives-syntax`** and **`--reporter mocha-performance`** to your existing mocha script runner like this

    ```bash
    node --allow-natives-syntax ./node_modules/mocha/bin/_mocha --reporter mocha-performance ./test/**/*.js
    ```


# benchtest

*Integrated performance testing for Mocha based unit testing*

1. Install with

    ```bash
    npm install benchtest --save-dev
    ```

2. Add two global Mocha event hooks

    ```js
    const benchtest = require("benchtest");
    beforeEach(benchtest.test);
    after(benchtest.report);
    ```

3. Add a `#` to the end of each unit test name you wish to benchmark or use the option `all:true`

[1]: https://github.com/holidayextras/mocha-performance
[2]: https://github.com/anywhichway/benchtest

I'd like to do performance testing for the following unit test. 

```js
describe("simple test", async() => {
     it("first test", async() => {
        assert.equal(myProgram(), 1);
     })
})
```

But I'm not sure where to start.

How can I add performance testing tools to my mocha unit tests?