phpUnit vs phpSpec

function testRepositoryUsage()
{
    $id = 42;
    $value = array('results');
    $repo = $this->getMock('Repository\FindsStuffInCity');
    $repo->expects($this->once())
    	->method('findByCityId')
        ->with($id)
        ->will($this->returnValue($value));

    $sut = new Service($repo);

    $this->assertEquals($value, $sut->getResultForCityId($id));
}

function it_uses_stuffrepository_to_find_stuff(FindsStuffInCity $repository)
{
    $id = 42;
    $value = array('result');
    $repository->findByCityId($id)
    	->shouldBeCalled()
    	->willReturn($value);
    
    $this->getResultForCityId($id)
    	->shouldBeEqualTo($value);
}

A simple yet brilliant comparison.

so what is the difference in design?