from input import * | |
f = Foo() | |
if f.foo(2) != 4: | |
raise RuntimeError | |
if f.foo(None) != None: | |
raise RuntimeError | |
if f.foo() != None: | |
raise RuntimeError | |
if sfoo("Hello") != "Hello world": | |
raise RuntimeError | |
if sfoo(None) != None: | |
raise RuntimeError | |
if sfoo() != None: | |
raise RuntimeError |