```ruby
require_relative 'generator'

module DeltaTest
  module SpecHelpers

    ###
    # Setup generator and hook analyzer on contexts
    ###
    def use_delta_test(example)
      $delta_test_generator ||= DeltaTest::Generator.new
      $delta_test_generator.setup!

      example.before(:context) do
        $delta_test_generator.start!(example.metadata[:file_path])
      end

      example.after(:context) do
        $delta_test_generator.stop!
      end
    end

    ###
    # Extend
    #
    # @params {} example
    ###
    def self.extended(example)
      example.use_delta_test(example)
    end

    ###
    # Include
    # calls `extend` internally
    #
    # @params {} example
    ###
    def self.included(example)
      example.extend(self)
    end

  end
end
```

Use hook scope names of rspec v2
user
```ruby
require_relative 'generator'

module DeltaTest
  module SpecHelpers

    ###
    # Setup generator and hook analyzer on contexts
    ###
    def use_delta_test(example)
      $delta_test_generator ||= DeltaTest::Generator.new
      $delta_test_generator.setup!

      example.before(:all) do
        $delta_test_generator.start!(example.metadata[:file_path])
      end

      example.after(:all) do
        $delta_test_generator.stop!
      end
    end

    ###
    # Extend
    #
    # @params {} example
    ###
    def self.extended(example)
      example.use_delta_test(example)
    end

    ###
    # Include
    # calls `extend` internally
    #
    # @params {} example
    ###
    def self.included(example)
      example.extend(self)
    end

  end
end
```
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