Write spec fixtures for Enumerator::Lazy
user
```ruby
# -*- encoding: us-ascii -*-

module EnumeratorLazySpecs
  class SpecificError < Exception; end

  class YieldsMixed
    def self.initial_yields
      [nil, 0, 0, 0, 0, nil, :default_arg, [], [], [0], [0, 1], [0, 1, 2]]
    end

    def self.gathered_yields
      [nil, 0, [0, 1], [0, 1, 2], [0, 1, 2], nil, :default_arg, [], [], [0], [0, 1], [0, 1, 2]]
    end

    def self.gathered_yields_with_args(arg, *args)
      [nil, 0, [0, 1], [0, 1, 2], [0, 1, 2], nil, arg, args, [], [0], [0, 1], [0, 1, 2]]
    end

    def each(arg=:default_arg, *args)
      yield
      yield 0
      yield 0, 1
      yield 0, 1, 2
      yield(*[0, 1, 2])
      yield nil
      yield arg
      yield args
      yield []
      yield [0]
      yield [0, 1]
      yield [0, 1, 2]
    end
  end

  class EventsMixed
    def each
      ScratchPad << :before_yield

      yield 0

      ScratchPad << :after_yield

      raise SpecificError

      ScratchPad << :after_error

      :should_not_reach_here
    end
  end
end
```
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