rspec_stub_bug????

rspec_stub_bug.rb

require 'yaml'

class A
  def load_setting
    YAML.load_file("./hoge.yaml") # hoge.yaml => setting: 1
  end
end

class B
  CONST = A.new.load_setting
  CONST2 = YAML.load_file("./hoge.yaml")

  def self.load_setting_singleton
    YAML.load_file("./hoge.yaml")
  end

  def load_setting
    YAML.load_file("./hoge.yaml")
  end
end

describe A do
  # success
  it "should 1" do
    expect = {"setting" => 1}
    A.new.load_setting.should eq expect
  end
end

describe B do
  before do
    setting_stub = {"setting" => 2}
    YAML.stub(:load_file).and_return setting_stub
  end

  # success
  context "load_setting_singleton" do
    it "shoud be 2" do
      expected = {"setting" => 2}
      B.load_setting_singleton.should eq expected
    end
  end

  # success
  context "load_setting" do
    it "should be 2" do
      expected = {"setting" => 2}
      B.new.load_setting.should eq expected
    end
  end

  # fail
  # not applied stub
  context "CONST" do
    it "shoud be 2" do
      expected = {"setting" => 2}
      B::CONST.should eq expected
    end
  end

  # fail
  # not applied stub
  context "CONST2" do
    it "shoud be 2" do
      expected = {"setting" => 2}
      B::CONST2.should eq expected
    end
  end

end

stub_const