from testutils import assert_raises
import io
print(2 + 3)
assert_raises(TypeError, lambda: print('test', end=4), 'wrong type passed to end')
assert_raises(TypeError, lambda: print('test', sep=['a']), 'wrong type passed to sep')
try:
print('test', end=None, sep=None, flush=None)
except:
assert False, 'Expected None passed to end, sep, and flush to not raise errors'
buf = io.StringIO()
print('hello, world', file=buf)
assert buf.getvalue() == 'hello, world\n', buf.getvalue()