def test_completing_with_multiplying_four_items(self):
def multiply(a, b):
return a * b
multiplying = completing(multiply, identity=1)
result = transduce(Transducer,
multiplying,
[4, 2, 1, 9])
self.assertEqual(result, 72)
def test_completing_with_summing_four_items(self):
def add(a, b):
return a + b
summing = completing(add, identity=0)
result = transduce(Transducer,
summing,
[4, 2, 1, 9])
self.assertEqual(result, 16)
def test_completing_with_multiplying_zero_items_returns_identity(self):
def multiply(a, b):
return a * b
multiplying = completing(multiply, identity=1)
result = transduce(Transducer,
multiplying,
[])
self.assertEqual(result, 1)
def test_completing_with_summing_zero_items_returns_identity(self):
def add(a, b):
return a + b
summing = completing(add, identity=0)
result = transduce(Transducer,
summing,
[])
self.assertEqual(result, 0)