/**
* @test
*/
public function testWriteFile()
{
$file = new Filesystem();
$dir = static::getTempPath(__FUNCTION__);
mkdir($dir);
$file1 = rand(1, 10) . rand(0, getrandmax());
$path1 = $dir . DIRECTORY_SEPARATOR . $file1;
$file->writeFile($path1, 'testWriteFile');
$this->assertEquals('testWriteFile', $file->readFile($path1));
$file->writeFile($path1, 'testWriteFile');
$this->assertEquals('testWriteFile', $file->readFile($path1, 256));
}
