Dependency hierarchy branches affect eachother

[RSSchermer]

I may be doing something wrong or maybe I'm missing something. This is a very simplified version of the type of class I'm trying to test:

class SomeStack
{
    private $items = array();

    public function addItem($item)
    {
        $this->items[] = $item;
    }

    public function getItems()
    {
        return $this->items;
    }
}

And the test:

class SomeStackTest extends \PHPUnit_Framework_TestCase
{
    public function testStackInitiallyEmpty()
    {
        $stack = new SomeStack();

        $this->assertEmpty($stack->getItems());

        return $stack;
    }

    /**
     * @depends testStackInitiallyEmpty
     */
    public function testAddItem($stack)
    {
        $stack->addItem('SomeItem');

        $this->assertNotEmpty($stack->getItems());
    }

    /**
     * @depends testStackInitiallyEmpty
     */
    public function testSomethingElseThatWantsAnEmptyStack($stack)
    {
        $this->assertEmpty($stack->getItems()); // Fails
    }
}

In the example there's two different 'dependency hierarchy branches'. I was expecting to receive an empty stack in testSomethingElseThatWantsAnEmptyStack, but instead it seems that the earlier branch affected the state of the stack. Is this intended behavior? Am i doing something wrong? Is this a known limitation that is unfortunately a necessary evil for performance reasons? (I think the dependency would need to be rerun for every branch?)

There are workarounds of course, but they don't seem as elegant as having multiple tests that depend on the same 'parent' test.

[whatthejeff]

Thanks for the bug report, @RSSchermer. Unfortunately, this is a known issue. See #11 and #1060 for further discussions.