class PipeTestCase(TestCase):
def setUp(self):
self.p1 = Pipe()
def test_empty(self):
self.assertEqual(self.p1.is_empty(), True)
self.p1.pipe_cache = [ None ]
self.assertEqual(self.p1.is_empty(), True)
def test_output(self):
self.p1.pipe_cache = [1,2,3]
self.assertEqual(self.p1.output(),1)
self.assertEqual(self.p1.output(),2)
self.assertEqual(self.p1.output(),3)
self.assertEqual(self.p1.output(),None)
def test_execute(self):
self.assertEqual(self.p1.execute(1),1)
