Look here:
E AssertionError: Expected solutions to be correctly displayed in output when calling "arithmetic_arranger()" with five arithmetic problems and a second argument of `True`.
E assert ' 32 ... 1028 ' == ' 32 ... 172 1028'
E - 32 1 45 123 988
E + 32 1 45 123 988
E ? ++++
E - - 698 - 3801 + 43 + 49 + 40
E + - 698 - 3801 + 43 + 49 + 40
E ? ++++
E - ----- ------ ---- ----- -----...
E
E ...Full output truncated (6 lines hidden), use '-vv' to show
specifically:
- 32 1 45 123 988
+ 32 1 45 123 988
? ++++
- - 698 - 3801 + 43 + 49 + 40
+ - 698 - 3801 + 43 + 49 + 40
? ++++