def test_fmap():
t = Tree(1, [ Tree(2, [ Tree(3)
, Tree(4)
])
, Tree(5, [ Tree(6, [ Tree(7)
])
])
])
expected = Tree(2, [ Tree(4, [ Tree(6)
, Tree(8)
])
, Tree(10, [ Tree(12, [ Tree(14)
])
])
])
assert_equals(expected, t.fmap(lambda x: x*2))
def test_fmap_no_children():
t = Tree(1)
assert_equals(Tree(2), t.fmap(lambda x: x*2))
