def test_dependencies(self):
t1 = Task(a=1)
t2 = Task(a=2)
t3 = Task(a=3, requirements=[t1, t2])
self.assertEqual(t3.get_requirements(), [t1, t2])
f1 = File("outputblah1.txt")
f2 = File("outputblah2.txt")
t1.get_outputs = lambda: [f1]
t2.get_outputs = lambda: [f2]
self.assertEqual(t1.complete(), False)
self.assertEqual(t2.complete(), False)
self.assertEqual(t3.requirements_satisfied(), False)
f1.set_fake()
self.assertEqual(t1.complete(), True)
self.assertEqual(t2.complete(), False)
self.assertEqual(t3.requirements_satisfied(), False)
f2.set_fake()
self.assertEqual(t1.complete(), True)
self.assertEqual(t2.complete(), True)
self.assertEqual(t3.requirements_satisfied(), True)
def test_set_fake(self):
f = File("does_not_exist.root")
self.assertEqual(f.exists(), False)
f.set_fake()
self.assertEqual(f.exists(), True)