def test_processes_update(self):
p1 = AffectedProcess(1234)
p2 = AffectedProcess(1234)
p2.files = set(['foo', 'bar', 'baz'])
c = AffectedProcessesCollection()
c.update([p1])
c.update([p2])
self.assertIn(p1, c)
self.assertIn('bar', c[c.index(p1)].files)
