/**
* @test
*/
public function shouldCompareByExpression()
{
//given
$mock1 = Mock::mock('Foo');
Mock::when($mock1)->method()->thenReturn(1);
$mock2 = Mock::mock('Foo');
Mock::when($mock2)->method()->thenReturn(2);
$comparator = Comparator::compareBy('method()');
//when
$lesser = $comparator($mock1, $mock2);
$greater = $comparator($mock2, $mock1);
$equal = $comparator($mock1, $mock1);
//then
$this->assertEquals(-1, $lesser);
$this->assertEquals(1, $greater);
$this->assertEquals(0, $equal);
}
/**
* @test
*/
public function shouldSortArrayIndependentlyFromInitialOrder()
{
//given
$product1 = new Product(array('name' => 'a'));
$product2 = new Product(array('name' => 'b'));
$product3 = new Product(array('name' => 'c'));
$array1 = array($product1, $product2, $product3);
$array2 = array($product2, $product1, $product3);
$array3 = array($product3, $product1, $product2);
$comparator = Comparator::compareBy('name');
//when
$sorted1 = Arrays::sort($array1, $comparator);
$sorted2 = Arrays::sort($array2, $comparator);
$sorted3 = Arrays::sort($array3, $comparator);
//then
$this->assertEquals($sorted1, $sorted2);
$this->assertEquals($sorted2, $sorted3);
}