def test_compose_2_arg_funcs(self):
def plus_2(x, y):
return (x + 2, y + 2)
def times_3(x, y):
return (3 * x, 3 * y)
self.assertEqual(compose(times_3, plus_2)(1, 2), (9, 12))
self.assertEqual(compose(times_3, plus_2)(2, 3), (12, 15))
self.assertEqual(compose(times_3, plus_2)(3, 4), (15, 18))
def test_compose_2_arg_funcs(self):
def plus_2(x, y):
return (x + 2, y + 2)
def times_3(x, y):
return (3 * x, 3 * y)
self.assertEqual(compose(times_3, plus_2)(1, 2), (9, 12))
self.assertEqual(compose(times_3, plus_2)(2, 3), (12, 15))
self.assertEqual(compose(times_3, plus_2)(3, 4), (15, 18))
def test_compose_1_arg_funcs(self):
def plus_2(x):
return x + 2
def times_3(x):
return 3 * x
self.assertEqual(compose(times_3, plus_2)(1), 9)
self.assertEqual(compose(times_3, plus_2)(2), 12)
self.assertEqual(compose(times_3, plus_2)(3), 15)
self.assertEqual(list(map(compose(times_3, plus_2), [1, 2, 3])), [9, 12, 15])
def test_compose_1_arg_funcs(self):
def plus_2(x):
return x + 2
def times_3(x):
return 3 * x
self.assertEqual(compose(times_3, plus_2)(1), 9)
self.assertEqual(compose(times_3, plus_2)(2), 12)
self.assertEqual(compose(times_3, plus_2)(3), 15)
self.assertEqual(list(map(compose(times_3, plus_2), [1, 2, 3])),
[9, 12, 15])
def test_compose_string_funcs(self):
self.assertEqual(compose(str.strip, str.upper)(' hello '), 'HELLO')
self.assertEqual(compose(str.strip, str.upper)(' goodbye '), 'GOODBYE')
def test_compose_string_funcs(self):
self.assertEqual(compose(str.strip, str.upper)(' hello '), 'HELLO')
self.assertEqual(compose(str.strip, str.upper)(' goodbye '), 'GOODBYE')
