def test_dependency_tracker_add_resources_with_deduplication():
dep = ps.DependencyTracker('res1')
dep.add('res1', 'res2', 'res1')
assert sorted(dep) == ['res1', 'res2']
def test_dependency_tracker_insertion_order():
dep = ps.DependencyTracker('A', 'C')
dep.add('D')
dep.add('B')
assert list(dep) == ['A', 'C', 'D', 'B']
def test_dependency_tracker_retrieve_resources():
dep = ps.DependencyTracker('res1', 'res2', 'res1')
assert set(dep) == {'res1', 'res2'}
def test_dependency_tracker_add_resources_wit_deduplication():
dep = ps.DependencyTracker()
dep.add('res1', 'res2', 'res1')
assert set(dep) == {'res1', 'res2'}