def test_libsndfile_error_with_prefix():
err = sf.LibsndfileError(2, prefix="XX ")
assert isinstance(err, sf.SoundFileError)
assert err.error_string # cannot assume exact message generated by libsndfile
assert str(err) == "XX " + err.error_string
def test_libsndfile_error():
err = sf.LibsndfileError(2)
assert isinstance(err, sf.SoundFileError)
assert err.error_string # cannot assume exact message generated by libsndfile
assert str(err) == err.error_string