gistfile1.php

<?php 

/**
 * @expectedException \Postit\Db\Exception
 */
function testInsertPost_throwsException()
{
	$pdoMock = $this->getMockBuilder('PDO')
			->disableOriginalConstructor()
			->getMock();

	$pdoMock->expects($this->once())
		->method('prepare')
		->will($this->throwException(new \PDOException));

	$repo = new PostRepo($pdoMock);
	$repo->insertPost(new PostEntity(null, null), 23);
}