public function testMessage()
{
$post = new TestPost();
$post->setTopic($this->getMock($this->topicClass));
$this->assertAttributeEmpty('message', $post, 'the message is empty during creation');
$post->setMessage('Foo bar bla bla...');
$this->assertAttributeEquals('Foo bar bla bla...', 'message', $post, '::setMessage() sets the message');
$this->assertEquals('Foo bar bla bla...', $post->getMessage(), '::getMessage() gets the message');
}
