def test_remove(self):
top = Assembly()
top._setup()
g = top._depgraph.component_graph()
comps = [name for name in g]
self.assertEqual(comps, ['driver'])
top.add('comp', Component())
top._setup()
g = top._depgraph.component_graph()
comps = [name for name in g]
self.assertEqual(set(comps), set(['driver', 'comp']))
top.remove('comp')
top._setup()
g = top._depgraph.component_graph()
comps = [name for name in g]
self.assertEqual(comps, ['driver'])
