function testSortByKeys() { $item1 = new lmbSet(array(1)); $item2 = new lmbSet(array(2)); $iterator = new lmbCollection(); $this->assertTrue($iterator->isEmpty()); $iterator->add($item1, 1); $this->assertFalse($iterator->isEmpty()); $iterator->add($item2, 0); $iterator->sortByKeys(); $iterator->rewind(); $this->assertTrue($iterator->valid()); $this->assertEqual($iterator->current(), $item2); $iterator->next(); $this->assertEqual($iterator->current(), $item1); }