public function testSetRenderer()
{
$this->assertInstanceOf('Zend\\View\\Renderer\\PhpRenderer', $this->mailService->getRenderer());
$anotherRenderer = new PhpRenderer();
$this->assertSame($this->mailService, $this->mailService->setRenderer($anotherRenderer));
$this->assertSame($anotherRenderer, $this->mailService->getRenderer());
}