Is Float::INFINITY a valid Money input?

[ghiculescu]

It doesn't seem like this input should be possible (unless you're writing a program to simulate the federal reserve):

m = Money.new(Float::INFINITY, "USD")
m.value # Infinity

It raises when trying to render, which makes me think it's not intentionally working:

Money.new(Float::INFINITY, "USD").to_s

        2: from /Users/alex/.rvm/gems/ruby-2.7.7/gems/shopify-money-1.2.1/lib/money/money.rb:236:in `to_fs'
        1: from /Users/alex/.rvm/gems/ruby-2.7.7/gems/shopify-money-1.2.1/lib/money/money.rb:236:in `-'
TypeError (nil can't be coerced into Integer)

Would you consider a PR to explicitly raise when the Money is initialized?

[elfassy]

Have you ran into a situation where this was causing an issue? Feel free to open a PR, there's no specific intent to support infinite money