def test_composition_with_one_function(self):
def f(x): return x
a = compose(f)
self.assertEqual(a(5), 5)
def test_numerical_composition(self):
plus1 = lambda w: w + 1
times2 = lambda w: w * 2
self.assertEqual(compose(plus1, times2)(5), 11)
self.assertEqual(compose(times2, plus1)(5), 12)
def test_composition(self):
greet = lambda name: "hi: " + name
exclaim = lambda statement: statement + "!"
welcome = compose(exclaim, greet)
self.assertEqual(welcome("moe"), "hi: moe!")
def test_composition_with_one_function(self):
def f(x): return x
a = functional.compose(f)
self.assertEqual(a(5), 5)
def test_numerical_composition(self):
plus1 = lambda w: w + 1
times2 = lambda w: w * 2
self.assertEqual(functional.compose(plus1, times2)(5), 11)
self.assertEqual(functional.compose(times2, plus1)(5), 12)
def test_composition(self):
greet = lambda name: "hi: " + name
exclaim = lambda statement: statement + "!"
welcome = functional.compose(exclaim, greet)
self.assertEqual(welcome("moe"), "hi: moe!")
