ruby
  describe "#__nested__" do

    context "when the hash key is a string" do

      let(:hash) do
        { '100' => { 'name' => 'hundred' } }
      end

      let(:nested) do
        hash.__nested__('100.name')
      end

      it "should retrieve a nested value under the provided key" do
        nested.should eq 'hundred'
      end

    end

    context "when the hash key is an integer" do

      let(:hash) do
        { 100 => { 'name' => 'hundred' } }
      end

      let(:nested) do
        hash.__nested__('100.name')
      end

      it "should retrieve a nested value under the provided key" do
        nested.should eq 'hundred'
      end

    end

  end

 ruby
Mongoid::Extensions::Hash
  #__nested__
    when the hash key is a string
      should retrieve a nested value under the provided key
    when the hash key is an integer
      should retrieve a nested value under the provided key (FAILED - 1)

Failures:

  1) Mongoid::Extensions::Hash#__nested__ when the hash key is an integer should retrieve a nested value under the provided key
     Failure/Error: hash.__nested__('100.name')
     NoMethodError:
       undefined method `[]' for nil:NilClass
     # ./lib/mongoid/extensions/hash.rb:104:in `block in __nested__'
     # ./lib/mongoid/extensions/hash.rb:103:in `each'
     # ./lib/mongoid/extensions/hash.rb:103:in `__nested__'
     # ./spec/mongoid/extensions/hash_spec.rb:245:in `block (4 levels) in <top (required)>'
     # ./spec/mongoid/extensions/hash_spec.rb:249:in `block (4 levels) in <top (required)>'

Finished in 0.00824 seconds
2 examples, 1 failure