public function testCompositeCommand()
{
$composite = new Composite();
//test basics of this command
$this->assertTrue(is_subclass_of($composite, 'izzum\\command\\Command'));
$this->assertTrue(in_array('izzum\\command\\IComposite', class_implements($composite)));
$this->assertTrue(in_array('izzum\\command\\ICommand', class_implements($composite)));
$list = array();
//create 3 commands with a reference to the same list
$command1 = new AddToListCommand($list);
$command2 = new AddToListCommand($list);
$command3 = new AddToListCommand($list);
//executing the composite does not affect list
$composite->execute();
$this->assertEquals(0, count($list));
//add commands to composite 'in order'
$composite->add($command1);
$composite->add($command2);
$composite->add($command3);
//execute the composite, we expect to have an array with incrementing numbers,
//proving the composite executes 'in order'
$composite->execute();
$this->assertEquals(3, count($list));
$this->assertTrue($list[1] == $list[0] + 1);
$this->assertTrue($list[2] == $list[1] + 1);
$list = array();
$command1 = new AddToListCommand($list);
$command2 = new AddToListCommand($list);
$command3 = new AddToListCommand($list);
$composite = new Composite();
//add the commands one by one and check everything works out
//check add() and contains()
$composite->add($command1);
$this->assertTrue($composite->contains($command1));
$this->assertFalse($composite->contains($command2));
$this->assertFalse($composite->contains($command3));
$composite->add($command2);
$this->assertTrue($composite->contains($command1));
$this->assertTrue($composite->contains($command2));
$this->assertFalse($composite->contains($command3));
$composite->add($command3);
$this->assertTrue($composite->contains($command1));
$this->assertTrue($composite->contains($command2));
$this->assertTrue($composite->contains($command3));
//remove one by one
//check remove() and contains()
$this->assertEquals(3, $composite->count());
$composite->remove($command1);
$this->assertFalse($composite->contains($command1));
$this->assertTrue($composite->contains($command2));
$this->assertTrue($composite->contains($command3));
$composite->remove($command2);
$this->assertFalse($composite->contains($command1));
$this->assertFalse($composite->contains($command2));
$this->assertTrue($composite->contains($command3));
$composite->remove($command3);
$this->assertFalse($composite->contains($command1));
$this->assertFalse($composite->contains($command2));
$this->assertFalse($composite->contains($command3));
$this->assertNotNull($composite->toString());
//nested composite
$composite = new Composite();
$nested = new Composite();
$composite->add($nested);
$this->assertNotNull($composite->toString());
}
