public function testFails()
{
$adapter = new Adapter\Local(__DIR__ . '/files');
$this->assertFalse($adapter->write('pleasefail.txt', 'content', 'public'));
$this->assertFalse($adapter->update('pleasefail.txt', 'content'));
$this->assertFalse($adapter->read('pleasefail.txt'));
$this->assertFalse($adapter->deleteDir('non-existing'));
}