def test_stderr(capsys):
br._stderr("Hello std_err", quiet=False)
out, err = capsys.readouterr()
assert err == "Hello std_err"
br._stderr("Hello std_err", quiet=True)
out, err = capsys.readouterr()
assert err == ""
def test_std_errors(capfd, monkeypatch):
monkeypatch.setattr(sys.stderr, "write", mock_unicodeencodeerror)
br._stderr("Hello std_err α", quiet=False)
out, err = capfd.readouterr()
assert err == "Hello std_err α"
monkeypatch.setattr(sys.stdout, "write", mock_unicodeencodeerror)
br._stdout("Hello std_out α", quiet=False)
out, err = capfd.readouterr()
assert out == "Hello std_out α"