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I know the tests are barely readable, but don't worry, I fully copied your original fixture.

done

Ah, I missed that they were dark grayed...

Though, a note should be added for those who do not know about this feature.

As far as I can see only Python 3.6 is available, so that's already dealt with.

If multiple functions are true for any given x, return them in same order found in the intial dictionary. (for example in the case above 15 is "fizzbuzz" not "buzzfizz" because "fizz" appears first in the dictionary)

That applies ONLY for py 3.6 and above. So either you have to provide a list of tuples, or you have to be explicit about that. Dictionaries were unordered before py3.6.

In your sample tests, you've got a test4/text4 typo here:

test4_expected = '19 fizz 17 16 fizzbuzz 14 13 fizz 11 buzz fizz 8 7 fizz buzz 4 fizz 2 1'
Test.assert_equals(text4_expected, test4_actual)

and you've also got expected and actual reversed, so error messages claim that the desired result should equal the incorrect result instead of the other way around.

So the "[current]" at the end of the dictionary tells it to search all the keys for a match and return the value? How would I do the opposite, search the values and return the key?

seems good to me. The only thing would be to remove the "ticks" at the beginning of the code blocks (in the examples: 1-, 2-, ...)

You're welcome, I'm glad you enjoyed it!

Thanks a lot! Really enjoyed this Kata.

Spoiler alert! :-)

@accord75,@Chris_Rands Thanks a lot :)

can you explain me, why used - operator in the solution?