houdini/spec/lib/format/currency_spec.rb

# frozen_string_literal: true

# License: AGPL-3.0-or-later WITH WTO-AP-3.0-or-later
# Full license explanation at https://github.com/houdiniproject/houdini/blob/master/LICENSE
require 'rails_helper'

describe Format::Currency do
  symbol = Houdini.intl.currencies[0]

  describe '.dollars_to_cents' do
    context 'with dollar sign' do
      it 'converts to a cents value as an integer' do
        expect(Format::Currency.dollars_to_cents("#{symbol}11.11")).to eq(1111)
      end
    end

    context 'without dollar sign' do
      it 'converts to a cents value as an integer' do
        expect(Format::Currency.dollars_to_cents('11.00')).to eq(1100)
      end
    end

    context 'with large amount' do
      it 'converts to a cents value as an integer' do
        expect(Format::Currency.dollars_to_cents("#{symbol}111111111111.11")).to eq(11_111_111_111_111)
      end
    end
  end

  describe '.cents_to_dollars' do
    context 'hundreth-precision (eg $1.11)' do
      it 'converts to dollars with hundredth precision' do
        expect(Format::Currency.cents_to_dollars(111)).to eq('1.11')
      end
    end

    context 'tenth-precision (eg. $1.10)' do
      it 'converts to dollars with a trailing zero' do
        expect(Format::Currency.cents_to_dollars(110)).to eq('1.10')
      end
    end

    context 'whole value (eg. $1)' do
      it 'converts to dollars without decimals' do
        expect(Format::Currency.cents_to_dollars(100)).to eq('1')
      end
    end
  end
end