/** @dataProvider getValueTestData */
public function testPlusValue(Specificity $specificity, $value)
{
$this->assertEquals($value + 123, $specificity->plus(new Specificity(1, 2, 3))->getValue());
}
/** @dataProvider getCompareTestData */
public function testCompareTo(Specificity $a, Specificity $b, $result)
{
$this->assertEquals($result, $a->compareTo($b));
}