textwrap.dedent for testing example

test_dedent.py

from textwrap import dedent

def multiline_hello_world():
    print("hello")
    print("  world")

def test_multiline_hello_world(capsys):
    expected = dedent('''\
    hello
      world
    ''')
    multiline_hello_world()
    actual = capsys.readouterr().out
    assert actual == expected