Debug gem conflict with rspec mocks #1154

system('gem install bundler') unless Gem::Specification::find_all_by_name('bundler').any?
require 'bundler/inline'

gemfile(true) do
  source 'https://rubygems.org'
  gem 'rspec'
  gem 'debug', '~> 1.11.0'
end

require 'rspec'
require 'debug'

class MyClass
  def check_if_file_exist?(path)
    File.exist?(path)
  end
end

RSpec.describe "debug gem + File.exist? conflict" do
  let(:target_path) { "config/session_store.yml" }

  let(:my_class) { MyClass.new }

  before do
    allow(File).to receive(:exist?).with(target_path).and_return(true)
  end

  it "stubs File.exist? and avoids debug interference" do
    result = my_class.check_if_file_exist?(target_path)

    expect(result).to be true
  end
end

RSpec::Core::Runner.run([])