Rails + Rspec：如何测试环境特定的操作？ 例如“......除非Rails.env.production？”

Question

I'm writing a wrapper for a payment processor:

class PaySimpleWrapper 
  attr_reader :transaction

  def initialize(args={})
    @transaction.usesandbox = true unless Rails.env.production?
  ....

How would I test that the usessandbox attribute gets set only in non-production environments?

Answer 1

  describe PaySimpleWrapper do
    let(:wrapper) { PaySimpleWrapper.new }

    describe "when in production" do
      before { Rails.stub_chain(:env, :production?) { true } }
      it "uses the live system" do
        expect(wrapper.transaction.usesandbox).to be_false
      end
    end

    describe "when not in production" do
      before { Rails.stub_chain(:env, :production?) { false } }
      it "uses the sandbox" do
        expect(wrapper.transaction.usesandbox).to be_true
      end
    end
  end