* fixed assertAlmostEqual calls in tests
As you can see in the docs the signature of assertAlmostEqual is `assertAlmostEqual(first, second, places=7, msg=None, delta=None)`
Since the message is originally provided using a positional argument and only three arguments where given, the message effectively took the place of the `places` argument.
The default of places=7 is fine, we just have to use a keyword argument instead and this will resolve the resulting `TypeError`s when testing
* change assertAlmostEqual to assertEqual for string
assertAlmostEqual only makes sense when asserting ints/floats
* no need for keyword argument
Signature of method is `assertEqual(first, second, msg=None)`
Using a keyword argument is not required here.
Co-authored-by: ngschaider <gschaiderniklas@gmail.com>
