# frozen_string_literal: true

require 'spec_helper'
require 'cascade/complex_fields/currency'

describe Cascade::ComplexFields::Currency do
  def described_class
    Cascade::ComplexFields::Currency
  end

  subject { described_class.new }

  describe 'parse' do
    it "return nil if input string isn't number" do
      assert_nil subject.call('0o')
    end

    it 'prepare string to use it as bignum' do
      assert_kind_of BigDecimal, subject.call('1 123 123 45')
      assert_kind_of BigDecimal, subject.call('1 123, 123 45')
    end

    it 'return zero if field is empty' do
      assert_nil subject.call('')
      assert_nil subject.call(nil)
    end
  end
end