改めて RSpec Mocks のドキュメントを拾い読みして、改めて勉強になったところをまとめました。 基本的なところは飛ばしています。 $ rspec -v RSpec 3.6 - rspec-core 3.6.0 - rspec-expectations 3.6.0 - rspec-mocks 3.6.0 - rspec-support 3.6.0 describe "Test Doubles" do let(:item) { double("item", foo: 3, bar: 4) } it '定義methodが値を返すこと' do expect(item.foo).to eq(3) expect(item.bar).to eq(4) end it '定義されていないmethodは呼び出せないこと' do expect{ item.hoge }.to raise_error(/r
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