vfsstream-in-tests.md

Assuming you have the following tree and you want file operations on it, this is the minimum PHP you have to write to test it.

$ tree foo
foo
`-- bar

1 directory, 0 files

Add this to your composer.json:

{
    "require-dev": {
      "mikey179/vfsStream": "*"
    }
}

Here's a shiny example test case:

<?php
use org\bovigo\vfs\vfsStream;

class DirTest extends \PHPUnit_Framework_TestCase
{
    public function testSimple()
    {
        vfsStream::setup('my-root', 'null', ['foo' => ['bar' => []]]);
        $this->assertTrue(file_exists(vfsStream::url('my-root/foo')));
    }
}