frankfurter/spec/rebasing_spec.rb
2012-11-21 12:44:33 +00:00

32 lines
716 B
Ruby

require_relative 'helper'
require 'snapshot'
describe 'when rebased to a new base' do
let(:new_base) { 'USD' }
let(:snapshot) { Snapshot.new 'a date' }
let(:rates) { { new_base => 1.2781 } }
let(:rebased_hash) do
snapshot.stub :rates, rates do
snapshot
.with_base(new_base)
.to_hash
end
end
it 'resets base' do
rebased_hash[:base].must_equal new_base
end
it 'adds former base to rates' do
rebased_hash[:rates].keys.must_include Snapshot::DEFAULT_BASE
end
it 'removes new base from rates' do
rebased_hash[:rates].keys.wont_include new_base
end
it 'rebases rates' do
rebased_hash[:rates][Snapshot::DEFAULT_BASE].must_equal 0.7824
end
end