Config File Not Found When Running Unit Test

[TYMG]

Hello! I'm currently having an issue running the unit test where my assertions are failing. I'm trying to run my unit tests against my config file in the config directory.

➜  MPF-Playground git:(initial-documentation) ✗ python3 -m unittest                      
test_flippers (tests.test_basic_game.TestBasicGame)
F
======================================================================
FAIL: test_flippers (tests.test_basic_game.TestBasicGame)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/master/Projects/MPF/MPF-Playground/tests/test_basic_game.py", line 17, in test_flippers
    assert 'left_flipper' in self.machine.flippers
AssertionError

I have the following file structure:

• config
  • config.yaml
• modes
• monitor
• tests
  • init.py
  • test_basic_game.py

test_basic_game.py code

import os
from mpf.tests.MpfTestCase import MpfTestCase

class TestBasicGame(MpfTestCase):

   def getConfigFile(self):
       return 'config.yaml'

   def getMachinePath(self): # Trying to use config.yaml for the tests
       #return '../'
       return os.path.abspath(os.path.join(os.path.realpath(__file__), os.pardir, os.pardir))

   def test_flippers(self):
       # really this is just testing the everything loads without errors since
       # there's not much going on yet.
       print(self)
       assert 'left_flipper' in self.machine.flippers
       assert 'right_flipper' in self.machine.flippers

I feel like I'm not correctly accessing the config file. I've seen how mpf-examples organizes their tests, but I rather not have a config file per test.

[atummons]

I would try hardcoding it. You have a self finding path for the location, which could be doing something weird. I would just change it to the exact file path of your machine folder (not tests folder). Then see if it runs.

If not, here is a list of assertions: https://developer.missionpinball.org/en/dev/api/MpfBcpTestCase.html

Try looking through there to find a different assertion that might not fail.

[TYMG]

So the problem was that I was using the wrong method signature:

  def getConfigFile(self):
       return 'config.yaml'

   def getMachinePath(self): # Trying to use config.yaml for the tests
       #return '../'
       return os.path.abspath(os.path.join(os.path.realpath(__file__), os.pardir, os.pardir))

Should have been this:

    def get_config_file(self):
        return 'config.yaml'

    def get_machine_path(self):
        return os.path.abspath(os.path.join(os.path.realpath(__file__), os.pardir, os.pardir)