public function testAddMessageArgument()
{
$message = $this->getMock('Qu\\Message\\MessageInterface');
$this->assertSame($this->instance, $this->instance->addMessage($message), 'Method is fluent');
$this->assertCount(1, $this->instance->getMessages());
$this->assertSame($message, $this->instance->getMessages()[0]);
$this->instance->addMessage($message);
$this->assertCount(2, $this->instance->getMessages());
$this->assertSame([$message, $message], $this->instance->getMessages());
$this->setExpectedException('PHPUnit_Framework_Error');
$this->instance->addMessage(new \stdClass(), 'only instances of MessageInterface are accepted');
}
