如何在 Ruby rspec 中调用模块？

Question

lib/rspec/core/my_methods.rb

module MyLovelyModule

class My_methods

  def my_lovely_method
    save_world

    config.to_prepare do
      Dir.glob(Rails.root + "../simpleRspec/dummy_classes.rb").each do |c|
        require_dependency(c)
      end
  end
end
end
  end

lib/simpleRspec/dummy_classes.rb

describe MyLovelyModule do

class DummyClasses

  before(:all) do
    @dummy = DummyClasses.new
    @dummy.extend MyLovelyModule
  end

  describe "MyLovelyModule" do
    it "saves the world" do
      expect {
        @dummy.my_lovely_method
      }.to raise_error MeltDownException
    end
  end
end
end

我遇到了这样的错误：-

C:/Users/afzala/RubymineProjects/simpleRspec/lib/simpleRspec/dummy_classes.rb:2:in `<top (required)>': uninitialized constant MyLovelyModule (NameError)
    from -e:1:in `load'
    from -e:1:in `<main>'

Process finished with exit code 1

谁能帮我解决这个问题

Answer 1

您需要先加载您的模块。您还需要在定义测试之前关闭该类：

require 'lib/rspec/core/my_methods.rb'

describe MyLovelyModule do

  class DummyClasses
  end

  before(:all) do
    @dummy = DummyClasses.new
    @dummy.extend MyLovelyModule
  end

  describe "MyLovelyModule" do
    it "saves the world" do
      expect {
        @dummy.my_lovely_method
      }.to raise_error MeltDownException
    end
  end
end

此外，您将无法在测试中访问@dummy。您需要使用before(:each) 代替before(:all)