test unit ego trip

gistfile1.php

public function testUpdate()
{
    $tableGateway = $this->getTable('Skel\Model\Post');
    $post = $this->addPost();

    $saved = $tableGateway->save($post);
    $id = $saved->id;

    $this->assertEquals(1, $id);

    $post = $tableGateway->get($id);
    $this->assertEquals('Apple compra a Coderockr', $post->title);

    $post->title = 'Coderockr compra a Apple';
    $updated = $tableGateway->save($post);

    $post = $tableGateway->get($id);
    $this->assertEquals('Coderockr compra a Apple', $post->title);
}