billions and millions greater than 2

[rafael-bianchi]

Billions and millions (plural) were only working when the number was greater than 2.
E.g.
1 milhão
2 milhão
3 milhões

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[clairernovotny]

Thanks! Can you please update the unit test to account for this?

[aloisdg]

You can use interpolated string:

var genderMark = number / 1000000000 == 1 ? "ões" : "ão";
parts.Add($"{Convert(number / 1000000000, GrammaticalGender.Masculine)} bilh{genderMark}");

And you can use something similar for millions (or even make it a private static method).

[rafael-bianchi]

Added unit tests