/**
* @return null
*/
public function testToString()
{
$block1 = 'block 1';
$block2 = 'block 2';
$block3 = 'block 3';
$this->content->add($block1)->add($block2)->add($block3);
$expected = "{$block1} {$block2} {$block3}";
$this->expectOutputString($expected);
echo $this->content;
}
