diff --git a/Gemfile b/Gemfile
index 1abf797..f060907 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,10 +1,12 @@
-source "https://rubygems.org"
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
 
 # Allow the rails version to come from an ENV setting so Travis can test multiple versions.
 # See http://www.schneems.com/post/50991826838/testing-against-multiple-rails-versions/
 rails_version = ENV['RAILS_VERSION'] || '5.1.2'
 
-gem 'rails', "#{rails_version}"
+gem 'rails', rails_version.to_s
 
 case rails_version.split('.').first
 when '3'
@@ -19,17 +21,22 @@ gem 'rswag-api', path: './rswag-api'
 gem 'rswag-ui', path: './rswag-ui'
 
 group :test do
-  gem 'test-unit'
-  gem 'rspec-rails'
-  gem 'generator_spec'
   gem 'capybara'
   gem 'capybara-webkit'
+  gem 'generator_spec'
+  gem 'rspec-rails'
   gem 'rswag-specs', path: './rswag-specs'
+  gem 'test-unit'
+end
+
+group :development do
+  gem 'guard-rspec', require: false
+  gem 'rubocop'
 end
 
 group :assets do
-  gem 'uglifier'
   gem 'therubyracer'
+  gem 'uglifier'
 end
 
 gem 'byebug'
diff --git a/rswag-specs/Guardfile b/rswag-specs/Guardfile
new file mode 100644
index 0000000..e1ed8e2
--- /dev/null
+++ b/rswag-specs/Guardfile
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+# A sample Guardfile
+# More info at https://github.com/guard/guard#readme
+
+## Uncomment and set this to only include directories you want to watch
+# directories %w(app lib config test spec features) \
+#  .select{|d| Dir.exist?(d) ? d : UI.warning("Directory #{d} does not exist")}
+
+## Note: if you are using the `directories` clause above and you are not
+## watching the project directory ('.'), then you will want to move
+## the Guardfile to a watched dir and symlink it back, e.g.
+#
+#  $ mkdir config
+#  $ mv Guardfile config/
+#  $ ln -s config/Guardfile .
+#
+# and, you'll have to watch "config/Guardfile" instead of "Guardfile"
+
+# Note: The cmd option is now required due to the increasing number of ways
+#       rspec may be run, below are examples of the most common uses.
+#  * bundler: 'bundle exec rspec'
+#  * bundler binstubs: 'bin/rspec'
+#  * spring: 'bin/rspec' (This will use spring if running and you have
+#                          installed the spring binstubs per the docs)
+#  * zeus: 'zeus rspec' (requires the server to be started separately)
+#  * 'just' rspec: 'rspec'
+
+guard :rspec, cmd: 'bundle exec rspec' do
+  require 'guard/rspec/dsl'
+  dsl = Guard::RSpec::Dsl.new(self)
+
+  # Feel free to open issues for suggestions and improvements
+
+  # RSpec files
+  rspec = dsl.rspec
+  watch(rspec.spec_helper) { rspec.spec_dir }
+  watch(rspec.spec_support) { rspec.spec_dir }
+  watch(rspec.spec_files)
+
+  # Ruby files
+  ruby = dsl.ruby
+  dsl.watch_spec_files_for(ruby.lib_files)
+
+  # Rails files
+  rails = dsl.rails(view_extensions: %w[erb haml slim])
+  dsl.watch_spec_files_for(rails.app_files)
+  dsl.watch_spec_files_for(rails.views)
+
+  watch(rails.controllers) do |m|
+    [
+      rspec.spec.call("routing/#{m[1]}_routing"),
+      rspec.spec.call("controllers/#{m[1]}_controller"),
+      rspec.spec.call("acceptance/#{m[1]}")
+    ]
+  end
+
+  # Rails config changes
+  watch(rails.spec_helper) { rspec.spec_dir }
+end
diff --git a/rswag-specs/lib/rswag/specs/configuration.rb b/rswag-specs/lib/rswag/specs/configuration.rb
index 4adf33c..6cc2767 100644
--- a/rswag-specs/lib/rswag/specs/configuration.rb
+++ b/rswag-specs/lib/rswag/specs/configuration.rb
@@ -1,8 +1,8 @@
+# frozen_string_literal: true
+
 module Rswag
   module Specs
-
     class Configuration
-
       def initialize(rspec_config)
         @rspec_config = rspec_config
       end
@@ -12,6 +12,7 @@ module Rswag
           if @rspec_config.swagger_root.nil?
             raise ConfigurationError, 'No swagger_root provided. See swagger_helper.rb'
           end
+
           @rspec_config.swagger_root
         end
       end
@@ -21,6 +22,7 @@ module Rswag
           if @rspec_config.swagger_docs.nil? || @rspec_config.swagger_docs.empty?
             raise ConfigurationError, 'No swagger_docs defined. See swagger_helper.rb'
           end
+
           @rspec_config.swagger_docs
         end
       end
@@ -34,6 +36,7 @@ module Rswag
       def get_swagger_doc(name)
         return swagger_docs.values.first if name.nil?
         raise ConfigurationError, "Unknown swagger_doc '#{name}'" unless swagger_docs[name]
+
         swagger_docs[name]
       end
     end
diff --git a/rswag-specs/lib/rswag/specs/example_group_helpers.rb b/rswag-specs/lib/rswag/specs/example_group_helpers.rb
index 2e2fd7d..87f6e9b 100644
--- a/rswag-specs/lib/rswag/specs/example_group_helpers.rb
+++ b/rswag-specs/lib/rswag/specs/example_group_helpers.rb
@@ -1,20 +1,21 @@
+# frozen_string_literal: true
+
 module Rswag
   module Specs
     module ExampleGroupHelpers
-
-      def path(template, metadata={}, &block)
+      def path(template, metadata = {}, &block)
         metadata[:path_item] = { template: template }
         describe(template, metadata, &block)
       end
 
-      [ :get, :post, :patch, :put, :delete, :head ].each do |verb|
+      %i[get post patch put delete head].each do |verb|
         define_method(verb) do |summary, &block|
           api_metadata = { operation: { verb: verb, summary: summary } }
           describe(verb, api_metadata, &block)
         end
       end
 
-      [ :operationId, :deprecated, :security ].each do |attr_name|
+      %i[operationId deprecated security].each do |attr_name|
         define_method(attr_name) do |value|
           metadata[:operation][attr_name] = value
         end
@@ -23,32 +24,61 @@ module Rswag
       # NOTE: 'description' requires special treatment because ExampleGroup already
       # defines a method with that name. Provide an override that supports the existing
       # functionality while also setting the appropriate metadata if applicable
-      def description(value=nil)
+      def description(value = nil)
         return super() if value.nil?
+
         metadata[:operation][:description] = value
       end
 
       # These are array properties - note the splat operator
-      [ :tags, :consumes, :produces, :schemes ].each do |attr_name|
+      %i[tags consumes produces schemes].each do |attr_name|
         define_method(attr_name) do |*value|
           metadata[:operation][attr_name] = value
         end
       end
 
-      #TODO: look at adding request_body method to handle diffs in Open API 2.0 to 3.0
+      # NICE TO HAVE
+      # TODO: update generator templates to include 3.0 syntax
+      # TODO: setup travis CI?
+
+      # MUST HAVES
+      # TODO: look at adding request_body method to handle diffs in Open API 2.0 to 3.0
+      # TODO: look at adding examples  in content request_body
       # https://swagger.io/docs/specification/describing-request-body/
       # need to make sure we output requestBody in the swagger generator .json
       # also need to make sure that it can handle content: , required: true/false, schema: ref
 
+      def request_body(attributes)
+        # can make this generic, and accept any incoming hash (like parameter method)
+        attributes.compact!
+        metadata[:operation][:requestBody] = attributes
+      end
 
-
+      def request_body_json(schema:, required: true, description: nil, examples: nil)
+        passed_examples = Array(examples)
+        content_hash = { 'application/json' => { schema: schema, examples: examples }.compact! || {} }
+        request_body(description: description, required: required, content: content_hash)
+        if passed_examples.any?
+          # the request_factory is going to have to resolve the different ways that the example can be given
+          # it can contain a 'value' key which is a direct hash (easiest)
+          # it can contain a 'external_value' key which makes an external call to load the json
+          # it can contain a '$ref' key. Which points to #/components/examples/blog
+          if passed_examples.first.is_a?(Symbol)
+            example_key_name = passed_examples.first # can come up with better scheme here
+            # TODO: write more tests around this adding to the parameter
+            # if symbol try and use save_request_example
+            param_attributes = { name: example_key_name, in: :body, required: required, param_value: example_key_name }
+            parameter(param_attributes)
+          end
+        end
+      end
 
       def parameter(attributes)
         if attributes[:in] && attributes[:in].to_sym == :path
           attributes[:required] = true
         end
 
-        if metadata.has_key?(:operation)
+        if metadata.key?(:operation)
           metadata[:operation][:parameters] ||= []
           metadata[:operation][:parameters] << attributes
         else
@@ -57,7 +87,7 @@ module Rswag
         end
       end
 
-      def response(code, description, metadata={}, &block)
+      def response(code, description, metadata = {}, &block)
         metadata[:response] = { code: code, description: description }
         context(description, metadata, &block)
       end
@@ -76,6 +106,7 @@ module Rswag
       # rspec-core ExampleGroup
       def examples(example = nil)
         return super() if example.nil?
+
         metadata[:response][:examples] = example
       end
 
@@ -99,6 +130,21 @@ module Rswag
             assert_response_matches_metadata(example.metadata, &block)
             example.instance_exec(response, &block) if block_given?
           end
+
+          after do |example|
+            body_parameter = example.metadata[:operation]&.dig(:parameters)&.detect { |p| p[:in] == :body && p[:required] }
+
+            if body_parameter && respond_to?(body_parameter[:name]) && example.metadata[:operation][:requestBody][:content]['application/json']
+              # save response examples by default
+              example.metadata[:response][:examples] = { 'application/json' => JSON.parse(response.body, symbolize_names: true) } unless response.body.to_s.empty?
+
+              # save request examples using the let(:param_name) { REQUEST_BODY_HASH } syntax in the test
+              example.metadata[:operation][:requestBody][:content]['application/json'] = { examples: {} } unless example.metadata[:operation][:requestBody][:content]['application/json'][:examples]
+              json_request_examples = example.metadata[:operation][:requestBody][:content]['application/json'][:examples]
+              json_request_examples[body_parameter[:name]] = { value: send(body_parameter[:name]) }
+              example.metadata[:operation][:requestBody][:content]['application/json'][:examples] = json_request_examples
+            end
+          end
         end
       end
     end
diff --git a/rswag-specs/lib/rswag/specs/example_helpers.rb b/rswag-specs/lib/rswag/specs/example_helpers.rb
index d8ff128..c447742 100644
--- a/rswag-specs/lib/rswag/specs/example_helpers.rb
+++ b/rswag-specs/lib/rswag/specs/example_helpers.rb
@@ -1,10 +1,11 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/request_factory'
 require 'rswag/specs/response_validator'
 
 module Rswag
   module Specs
     module ExampleHelpers
-
       def submit_request(metadata)
         request = RequestFactory.new.build_request(metadata, self)
 
@@ -19,10 +20,8 @@ module Rswag
           send(
             request[:verb],
             request[:path],
-            {
-              params: request[:payload],
-              headers: request[:headers]
-            }
+            params: request[:payload],
+            headers: request[:headers]
           )
         end
       end
diff --git a/rswag-specs/lib/rswag/specs/extended_schema.rb b/rswag-specs/lib/rswag/specs/extended_schema.rb
index 847cd72..3af8efc 100644
--- a/rswag-specs/lib/rswag/specs/extended_schema.rb
+++ b/rswag-specs/lib/rswag/specs/extended_schema.rb
@@ -1,9 +1,10 @@
+# frozen_string_literal: true
+
 require 'json-schema'
 
 module Rswag
   module Specs
     class ExtendedSchema < JSON::Schema::Draft4
-      
       def initialize
         super
         @attributes['type'] = ExtendedTypeAttribute
@@ -13,9 +14,9 @@ module Rswag
     end
 
     class ExtendedTypeAttribute < JSON::Schema::TypeV4Attribute
-      
-      def self.validate(current_schema, data, fragments, processor, validator, options={})
+      def self.validate(current_schema, data, fragments, processor, validator, options = {})
         return if data.nil? && (current_schema.schema['nullable'] == true || current_schema.schema['x-nullable'] == true)
+
         super
       end
     end
diff --git a/rswag-specs/lib/rswag/specs/railtie.rb b/rswag-specs/lib/rswag/specs/railtie.rb
index 8deec2b..4e6b095 100644
--- a/rswag-specs/lib/rswag/specs/railtie.rb
+++ b/rswag-specs/lib/rswag/specs/railtie.rb
@@ -1,9 +1,10 @@
+# frozen_string_literal: true
+
 module Rswag
   module Specs
     class Railtie < ::Rails::Railtie
-
       rake_tasks do
-        load File.expand_path('../../../tasks/rswag-specs_tasks.rake', __FILE__)
+        load File.expand_path('../../tasks/rswag-specs_tasks.rake', __dir__)
       end
     end
   end
diff --git a/rswag-specs/lib/rswag/specs/request_factory.rb b/rswag-specs/lib/rswag/specs/request_factory.rb
index 0bb7a33..31f1831 100644
--- a/rswag-specs/lib/rswag/specs/request_factory.rb
+++ b/rswag-specs/lib/rswag/specs/request_factory.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/hash/slice'
 require 'active_support/core_ext/hash/conversions'
 require 'json'
@@ -5,7 +7,6 @@ require 'json'
 module Rswag
   module Specs
     class RequestFactory
-
       def initialize(config = ::Rswag::Specs.config)
         @config = config
       end
@@ -38,11 +39,11 @@ module Rswag
 
       def derive_security_params(metadata, swagger_doc)
         requirements = metadata[:operation][:security] || swagger_doc[:security] || []
-        scheme_names = requirements.flat_map { |r| r.keys }
+        scheme_names = requirements.flat_map(&:keys)
         schemes = (swagger_doc[:components][:securitySchemes] || {}).slice(*scheme_names).values
 
         schemes.map do |scheme|
-          param = (scheme[:type] == :apiKey) ? scheme.slice(:name, :in) : { name: 'Authorization', in: :header }
+          param = scheme[:type] == :apiKey ? scheme.slice(:name, :in) : { name: 'Authorization', in: :header }
           param.merge(type: :string, required: requirements.one?)
         end
       end
@@ -51,10 +52,11 @@ module Rswag
         key = ref.sub('#/parameters/', '').to_sym
         definitions = swagger_doc[:parameters]
         raise "Referenced parameter '#{ref}' must be defined" unless definitions && definitions[key]
+
         definitions[key]
       end
 
-      def add_verb(request, metadata) 
+      def add_verb(request, metadata)
         request[:verb] = metadata[:operation][:verb]
       end
 
@@ -75,7 +77,7 @@ module Rswag
 
       def build_query_string_part(param, value)
         name = param[:name]
-        return "#{name}=#{value.to_s}" unless param[:type].to_sym == :array
+        return "#{name}=#{value}" unless param[:type].to_sym == :array
 
         case param[:collectionFormat]
         when :ssv
@@ -93,44 +95,44 @@ module Rswag
 
       def add_headers(request, metadata, swagger_doc, parameters, example)
         tuples = parameters
-          .select { |p| p[:in] == :header }
-          .map { |p| [ p[:name], example.send(p[:name]).to_s ] }
+                 .select { |p| p[:in] == :header }
+                 .map { |p| [p[:name], example.send(p[:name]).to_s] }
 
         # Accept header
         produces = metadata[:operation][:produces] || swagger_doc[:produces]
         if produces
-          accept = example.respond_to?(:'Accept') ? example.send(:'Accept') : produces.first
-          tuples << [ 'Accept', accept ]
+          accept = example.respond_to?(:Accept) ? example.send(:Accept) : produces.first
+          tuples << ['Accept', accept]
         end
 
         # Content-Type header
-        consumes = metadata[:operation][:consumes] || swagger_doc[:consumes] 
+        consumes = metadata[:operation][:consumes] || swagger_doc[:consumes]
         if consumes
           content_type = example.respond_to?(:'Content-Type') ? example.send(:'Content-Type') : consumes.first
-          tuples << [ 'Content-Type', content_type ]
+          tuples << ['Content-Type', content_type]
         end
 
         # Rails test infrastructure requires rackified headers
         rackified_tuples = tuples.map do |pair|
           [
             case pair[0]
-              when 'Accept' then 'HTTP_ACCEPT'
-              when 'Content-Type' then 'CONTENT_TYPE'
-              when 'Authorization' then 'HTTP_AUTHORIZATION'
-              else pair[0]
+            when 'Accept' then 'HTTP_ACCEPT'
+            when 'Content-Type' then 'CONTENT_TYPE'
+            when 'Authorization' then 'HTTP_AUTHORIZATION'
+            else pair[0]
             end,
             pair[1]
           ]
         end
 
-        request[:headers] = Hash[ rackified_tuples ]
+        request[:headers] = Hash[rackified_tuples]
       end
 
       def add_payload(request, parameters, example)
         content_type = request[:headers]['CONTENT_TYPE']
         return if content_type.nil?
 
-        if [ 'application/x-www-form-urlencoded', 'multipart/form-data' ].include?(content_type)
+        if ['application/x-www-form-urlencoded', 'multipart/form-data'].include?(content_type)
           request[:payload] = build_form_payload(parameters, example)
         else
           request[:payload] = build_json_payload(parameters, example)
@@ -143,14 +145,21 @@ module Rswag
         # Rails test infrastructure allows us to send the values directly as a hash
         # PROS: simple to implement, CONS: serialization/deserialization is bypassed in test
         tuples = parameters
-          .select { |p| p[:in] == :formData }
-          .map { |p| [ p[:name], example.send(p[:name]) ] }
-        Hash[ tuples ]
+                 .select { |p| p[:in] == :formData }
+                 .map { |p| [p[:name], example.send(p[:name])] }
+        Hash[tuples]
       end
 
       def build_json_payload(parameters, example)
         body_param = parameters.select { |p| p[:in] == :body }.first
-        body_param ? example.send(body_param[:name]).to_json : nil
+        return nil unless body_param
+
+        # p "example is #{example.send(body_param[:name]).to_json} ** AND body param is #{body_param}" if body_param
+        # body_param ? example.send(body_param[:name]).to_json : nil
+
+        source_body_param = example.send(body_param[:name]) if body_param[:name] && example.respond_to?(body_param[:name])
+        source_body_param ||= body_param[:param_value]
+        source_body_param ? source_body_param.to_json : nil
       end
     end
   end
diff --git a/rswag-specs/lib/rswag/specs/response_validator.rb b/rswag-specs/lib/rswag/specs/response_validator.rb
index d2b71ad..b5e4a8c 100644
--- a/rswag-specs/lib/rswag/specs/response_validator.rb
+++ b/rswag-specs/lib/rswag/specs/response_validator.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/hash/slice'
 require 'json-schema'
 require 'json'
@@ -6,7 +8,6 @@ require 'rswag/specs/extended_schema'
 module Rswag
   module Specs
     class ResponseValidator
-
       def initialize(config = ::Rswag::Specs.config)
         @config = config
       end
@@ -41,12 +42,12 @@ module Rswag
         response_schema = metadata[:response][:schema]
         return if response_schema.nil?
 
-        components_schemas = {components: {schemas: swagger_doc[:components][:schemas]}}
+        components_schemas = { components: { schemas: swagger_doc[:components][:schemas] } }
 
         validation_schema = response_schema
-          .merge('$schema' => 'http://tempuri.org/rswag/specs/extended_schema')
-          .merge(components_schemas)
-        
+                            .merge('$schema' => 'http://tempuri.org/rswag/specs/extended_schema')
+                            .merge(components_schemas)
+
         errors = JSON::Validator.fully_validate(validation_schema, body)
         raise UnexpectedResponse, "Expected response body to match schema: #{errors[0]}" if errors.any?
       end
diff --git a/rswag-specs/lib/rswag/specs/swagger_formatter.rb b/rswag-specs/lib/rswag/specs/swagger_formatter.rb
index 794a9d9..7c1109a 100644
--- a/rswag-specs/lib/rswag/specs/swagger_formatter.rb
+++ b/rswag-specs/lib/rswag/specs/swagger_formatter.rb
@@ -1,10 +1,11 @@
+# frozen_string_literal: true
+
 require 'active_support/core_ext/hash/deep_merge'
 require 'swagger_helper'
 
 module Rswag
   module Specs
     class SwaggerFormatter
-
       # NOTE: rspec 2.x support
       if RSPEC_VERSION > 2
         ::RSpec::Core::Formatters.register self, :example_group_finished, :stop
@@ -19,22 +20,23 @@ module Rswag
 
       def example_group_finished(notification)
         # NOTE: rspec 2.x support
-        if RSPEC_VERSION > 2
-          metadata = notification.group.metadata
-        else
-          metadata = notification.metadata
-        end
+        metadata = if RSPEC_VERSION > 2
+                     notification.group.metadata
+                   else
+                     notification.metadata
+                   end
+
+        return unless metadata.key?(:response)
 
-        return unless metadata.has_key?(:response)
         swagger_doc = @config.get_swagger_doc(metadata[:swagger_doc])
         swagger_doc.deep_merge!(metadata_to_swagger(metadata))
       end
 
-      def stop(notification=nil)
+      def stop(_notification = nil)
         @config.swagger_docs.each do |url_path, doc|
           file_path = File.join(@config.swagger_root, url_path)
           dirname = File.dirname(file_path)
-          FileUtils.mkdir_p dirname unless File.exists?(dirname)
+          FileUtils.mkdir_p dirname unless File.exist?(dirname)
 
           File.open(file_path, 'w') do |file|
             file.write(JSON.pretty_generate(doc))
@@ -48,17 +50,31 @@ module Rswag
 
       def metadata_to_swagger(metadata)
         response_code = metadata[:response][:code]
-        response = metadata[:response].reject { |k,v| k == :code }
+        response = metadata[:response].reject { |k, _v| k == :code }
+
+        if response_code.to_s == '201'
+          # need to merge in to resppnse
+          if response[:examples]&.dig('application/json')
+            example = response[:examples].dig('application/json').dup
+            response.merge!(content: { 'application/json' => { example: example } })
+            response.delete(:examples)
+          end
+        end
 
         verb = metadata[:operation][:verb]
         operation = metadata[:operation]
-          .reject { |k,v| k == :verb }
-          .merge(responses: { response_code => response })
+                    .reject { |k, _v| k == :verb }
+                    .merge(responses: { response_code => response })
+
+        # can remove the 2.0 compliant body incoming parameters
+        if operation&.dig(:parameters)
+          operation[:parameters].reject! { |p| p[:in] == :body }
+        end
 
         path_template = metadata[:path_item][:template]
         path_item = metadata[:path_item]
-          .reject { |k,v| k == :template }
-          .merge(verb => operation)
+                    .reject { |k, _v| k == :template }
+                    .merge(verb => operation)
 
         { paths: { path_template => path_item } }
       end
diff --git a/rswag-specs/rswag-specs.gemspec b/rswag-specs/rswag-specs.gemspec
index 0e4686e..bbf04eb 100644
--- a/rswag-specs/rswag-specs.gemspec
+++ b/rswag-specs/rswag-specs.gemspec
@@ -1,19 +1,22 @@
-$:.push File.expand_path("../lib", __FILE__)
+# frozen_string_literal: true
+
+$LOAD_PATH.push File.expand_path('lib', __dir__)
 
 # Describe your gem and declare its dependencies:
 Gem::Specification.new do |s|
-  s.name        = "rswag-specs"
+  s.name        = 'rswag-specs'
   s.version     = ENV['TRAVIS_TAG'] || '0.0.0'
-  s.authors     = ["Richie Morris"]
-  s.email       = ["domaindrivendev@gmail.com"]
-  s.homepage    = "https://github.com/domaindrivendev/rswag"
-  s.summary     = "A Swagger-based DSL for rspec-rails & accompanying rake task for generating Swagger files"
-  s.description = "Simplify API integration testing with a succinct rspec DSL and generate Swagger files directly from your rspecs"
-  s.license     = "MIT"
+  s.authors     = ['Richie Morris']
+  s.email       = ['domaindrivendev@gmail.com']
+  s.homepage    = 'https://github.com/domaindrivendev/rswag'
+  s.summary     = 'A Swagger-based DSL for rspec-rails & accompanying rake task for generating Swagger files'
+  s.description = 'Simplify API integration testing with a succinct rspec DSL and generate Swagger files directly from your rspecs'
+  s.license     = 'MIT'
 
-  s.files = Dir["{lib}/**/*"] + ["MIT-LICENSE", "Rakefile" ]
+  s.files = Dir['{lib}/**/*'] + %w[MIT-LICENSE Rakefile]
 
   s.add_dependency 'activesupport', '>= 3.1', '< 6.0'
-  s.add_dependency 'railties', '>= 3.1', '< 6.0'
   s.add_dependency 'json-schema', '~> 2.2'
+  s.add_dependency 'railties', '>= 3.1', '< 6.0'
+  s.add_development_dependency 'guard-rspec'
 end
diff --git a/rswag-specs/spec/rswag/specs/configuration_spec.rb b/rswag-specs/spec/rswag/specs/configuration_spec.rb
index b75d843..d265fce 100644
--- a/rswag-specs/spec/rswag/specs/configuration_spec.rb
+++ b/rswag-specs/spec/rswag/specs/configuration_spec.rb
@@ -1,8 +1,9 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/configuration'
 
 module Rswag
   module Specs
-
     describe Configuration do
       subject { described_class.new(rspec_config) }
 
diff --git a/rswag-specs/spec/rswag/specs/example_group_helpers_spec.rb b/rswag-specs/spec/rswag/specs/example_group_helpers_spec.rb
index 619a8d7..8b56735 100644
--- a/rswag-specs/spec/rswag/specs/example_group_helpers_spec.rb
+++ b/rswag-specs/spec/rswag/specs/example_group_helpers_spec.rb
@@ -1,8 +1,9 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/example_group_helpers'
 
 module Rswag
   module Specs
-
     describe ExampleGroupHelpers do
       subject { double('example_group') }
 
@@ -48,12 +49,12 @@ module Rswag
 
         it "adds to the 'operation' metadata" do
           expect(api_metadata[:operation]).to match(
-            tags: [ 'Blogs', 'Admin' ],
+            tags: %w[Blogs Admin],
             description: 'Some description',
             operationId: 'createBlog',
-            consumes: [ 'application/json', 'application/xml' ],
-            produces: [ 'application/json', 'application/xml' ],
-            schemes: [ 'http', 'https' ],
+            consumes: ['application/json', 'application/xml'],
+            produces: ['application/json', 'application/xml'],
+            schemes: %w[http https],
             deprecated: true
           )
         end
@@ -74,27 +75,59 @@ module Rswag
 
         it "adds to the 'operation' metadata" do
           expect(api_metadata[:operation]).to match(
-            tags: [ 'Blogs', 'Admin' ],
+            tags: %w[Blogs Admin],
             description: 'Some description',
             operationId: 'createBlog',
-            consumes: [ 'application/json', 'application/xml' ],
-            produces: [ 'application/json', 'application/xml' ],
-            schemes: [ 'http', 'https' ],
+            consumes: ['application/json', 'application/xml'],
+            produces: ['application/json', 'application/xml'],
+            schemes: %w[http https],
             deprecated: true,
             security: { api_key: [] }
           )
         end
       end
 
-      describe '#parameter(attributes)' do
+      describe '#request_body_json(schema)' do
+        let(:api_metadata) { { path_item: {}, operation: {} } } # i.e. operation defined
+        context 'when required is not supplied' do
+          before { subject.request_body_json(schema: { type: 'object' }) }
 
+          it 'adds required true by default' do
+            expect(api_metadata[:operation][:requestBody]).to match(
+              required: true, content: { 'application/json' => { schema: { type: 'object' } } }
+            )
+          end
+        end
+
+        context 'when required is supplied' do
+          before { subject.request_body_json(schema: { type: 'object' }, required: false) }
+
+          it 'adds required false' do
+            expect(api_metadata[:operation][:requestBody]).to match(
+              required: false, content: { 'application/json' => { schema: { type: 'object' } } }
+            )
+          end
+        end
+
+        context 'when required is supplied' do
+          before { subject.request_body_json(schema: { type: 'object' }, description: 'my description') }
+
+          it 'adds description' do
+            expect(api_metadata[:operation][:requestBody]).to match(
+              description: 'my description', required: true, content: { 'application/json' => { schema: { type: 'object' } } }
+            )
+          end
+        end
+      end
+
+      describe '#parameter(attributes)' do
         context "when called at the 'path' level" do
           before { subject.parameter(name: :blog, in: :body, schema: { type: 'object' }) }
           let(:api_metadata) { { path_item: {} } } # i.e. operation not defined yet
 
           it "adds to the 'path_item parameters' metadata" do
             expect(api_metadata[:path_item][:parameters]).to match(
-              [ name: :blog, in: :body, schema: { type: 'object' } ]
+              [name: :blog, in: :body, schema: { type: 'object' }]
             )
           end
         end
@@ -105,7 +138,7 @@ module Rswag
 
           it "adds to the 'operation parameters' metadata" do
             expect(api_metadata[:operation][:parameters]).to match(
-              [ name: :blog, in: :body, schema: { type: 'object' } ]
+              [name: :blog, in: :body, schema: { type: 'object' }]
             )
           end
         end
@@ -116,7 +149,7 @@ module Rswag
 
           it "automatically sets the 'required' flag" do
             expect(api_metadata[:operation][:parameters]).to match(
-              [ name: :id, in: :path, required: true ]
+              [name: :id, in: :path, required: true]
             )
           end
         end
@@ -126,7 +159,7 @@ module Rswag
           let(:api_metadata) { { operation: {} } }
 
           it "does not require the 'in' parameter key" do
-            expect(api_metadata[:operation][:parameters]).to match([ name: :id ])
+            expect(api_metadata[:operation][:parameters]).to match([name: :id])
           end
         end
       end
diff --git a/rswag-specs/spec/rswag/specs/example_helpers_spec.rb b/rswag-specs/spec/rswag/specs/example_helpers_spec.rb
index 3b22af4..01da373 100644
--- a/rswag-specs/spec/rswag/specs/example_helpers_spec.rb
+++ b/rswag-specs/spec/rswag/specs/example_helpers_spec.rb
@@ -1,8 +1,9 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/example_helpers'
 
 module Rswag
   module Specs
-
     describe ExampleHelpers do
       subject { double('example') }
 
@@ -12,7 +13,7 @@ module Rswag
         allow(config).to receive(:get_swagger_doc).and_return(swagger_doc)
         stub_const('Rswag::Specs::RAILS_VERSION', 3)
       end
-      let(:config) { double('config') } 
+      let(:config) { double('config') }
       let(:swagger_doc) do
         {
           securityDefinitions: {
@@ -30,7 +31,7 @@ module Rswag
           operation: {
             verb: :put,
             summary: 'Updates a blog',
-            consumes: [ 'application/json' ],
+            consumes: ['application/json'],
             parameters: [
               { name: :blog_id, in: :path, type: 'integer' },
               { name: 'id', in: :path, type: 'integer' },
@@ -58,8 +59,8 @@ module Rswag
         it "submits a request built from metadata and 'let' values" do
           expect(subject).to have_received(:put).with(
             '/blogs/1/comments/2?q1=foo&api_key=fookey',
-            "{\"text\":\"Some comment\"}",
-            { 'CONTENT_TYPE' => 'application/json' }
+            '{"text":"Some comment"}',
+            'CONTENT_TYPE' => 'application/json'
           )
         end
       end
diff --git a/rswag-specs/spec/rswag/specs/request_factory_spec.rb b/rswag-specs/spec/rswag/specs/request_factory_spec.rb
index f883952..7651811 100644
--- a/rswag-specs/spec/rswag/specs/request_factory_spec.rb
+++ b/rswag-specs/spec/rswag/specs/request_factory_spec.rb
@@ -1,15 +1,16 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/request_factory'
 
 module Rswag
   module Specs
-
     describe RequestFactory do
       subject { RequestFactory.new(config) }
 
       before do
         allow(config).to receive(:get_swagger_doc).and_return(swagger_doc)
       end
-      let(:config) { double('config') } 
+      let(:config) { double('config') }
       let(:swagger_doc) { {} }
       let(:example) { double('example') }
       let(:metadata) do
@@ -53,7 +54,7 @@ module Rswag
             allow(example).to receive(:q2).and_return('bar')
           end
 
-          it "builds the query string from example values" do
+          it 'builds the query string from example values' do
             expect(request[:path]).to eq('/blogs?q1=foo&q2=bar')
           end
         end
@@ -63,40 +64,40 @@ module Rswag
             metadata[:operation][:parameters] = [
               { name: 'things', in: :query, type: :array, collectionFormat: collection_format }
             ]
-            allow(example).to receive(:things).and_return([ 'foo', 'bar' ])
+            allow(example).to receive(:things).and_return(%w[foo bar])
           end
 
           context 'collectionFormat = csv' do
             let(:collection_format) { :csv }
-            it "formats as comma separated values" do
+            it 'formats as comma separated values' do
               expect(request[:path]).to eq('/blogs?things=foo,bar')
             end
           end
 
           context 'collectionFormat = ssv' do
             let(:collection_format) { :ssv }
-            it "formats as space separated values" do
+            it 'formats as space separated values' do
               expect(request[:path]).to eq('/blogs?things=foo bar')
             end
           end
 
           context 'collectionFormat = tsv' do
             let(:collection_format) { :tsv }
-            it "formats as tab separated values" do
+            it 'formats as tab separated values' do
               expect(request[:path]).to eq('/blogs?things=foo\tbar')
             end
           end
 
           context 'collectionFormat = pipes' do
             let(:collection_format) { :pipes }
-            it "formats as pipe separated values" do
+            it 'formats as pipe separated values' do
               expect(request[:path]).to eq('/blogs?things=foo|bar')
             end
           end
 
           context 'collectionFormat = multi' do
             let(:collection_format) { :multi }
-            it "formats as multiple parameter instances" do
+            it 'formats as multiple parameter instances' do
               expect(request[:path]).to eq('/blogs?things=foo&things=bar')
             end
           end
@@ -104,12 +105,12 @@ module Rswag
 
         context "'header' parameters" do
           before do
-            metadata[:operation][:parameters] = [ { name: 'Api-Key', in: :header, type: :string } ]
+            metadata[:operation][:parameters] = [{ name: 'Api-Key', in: :header, type: :string }]
             allow(example).to receive(:'Api-Key').and_return('foobar')
           end
 
           it 'adds names and example values to headers' do
-            expect(request[:headers]).to eq({ 'Api-Key' => 'foobar' })
+            expect(request[:headers]).to eq('Api-Key' => 'foobar')
           end
         end
 
@@ -127,9 +128,9 @@ module Rswag
           end
         end
 
-        context "consumes content" do
+        context 'consumes content' do
           before do
-            metadata[:operation][:consumes] = [ 'application/json', 'application/xml' ]
+            metadata[:operation][:consumes] = ['application/json', 'application/xml']
           end
 
           context "no 'Content-Type' provided" do
@@ -150,18 +151,18 @@ module Rswag
 
           context 'JSON payload' do
             before do
-              metadata[:operation][:parameters] = [ { name: 'comment', in: :body, schema: { type: 'object' } } ]
+              metadata[:operation][:parameters] = [{ name: 'comment', in: :body, schema: { type: 'object' } }]
               allow(example).to receive(:comment).and_return(text: 'Some comment')
             end
 
             it "serializes first 'body' parameter to JSON string" do
-              expect(request[:payload]).to eq("{\"text\":\"Some comment\"}")
+              expect(request[:payload]).to eq('{"text":"Some comment"}')
             end
           end
 
           context 'form payload' do
             before do
-              metadata[:operation][:consumes] = [ 'multipart/form-data' ]
+              metadata[:operation][:consumes] = ['multipart/form-data']
               metadata[:operation][:parameters] = [
                 { name: 'f1', in: :formData, type: :string },
                 { name: 'f2', in: :formData, type: :string }
@@ -181,7 +182,7 @@ module Rswag
 
         context 'produces content' do
           before do
-            metadata[:operation][:produces] = [ 'application/json', 'application/xml' ]
+            metadata[:operation][:produces] = ['application/json', 'application/xml']
           end
 
           context "no 'Accept' value provided" do
@@ -192,7 +193,7 @@ module Rswag
 
           context "explicit 'Accept' value provided" do
             before do
-              allow(example).to receive(:'Accept').and_return('application/xml')
+              allow(example).to receive(:Accept).and_return('application/xml')
             end
 
             it "sets 'HTTP_ACCEPT' header to example value" do
@@ -204,7 +205,7 @@ module Rswag
         context 'basic auth' do
           before do
             swagger_doc[:securityDefinitions] = { basic: { type: :basic } }
-            metadata[:operation][:security] = [ basic: [] ]
+            metadata[:operation][:security] = [basic: []]
             allow(example).to receive(:Authorization).and_return('Basic foobar')
           end
 
@@ -216,7 +217,7 @@ module Rswag
         context 'apiKey' do
           before do
             swagger_doc[:securityDefinitions] = { apiKey: { type: :apiKey, name: 'api_key', in: key_location } }
-            metadata[:operation][:security] = [ apiKey: [] ]
+            metadata[:operation][:security] = [apiKey: []]
             allow(example).to receive(:api_key).and_return('foobar')
           end
 
@@ -256,8 +257,8 @@ module Rswag
 
         context 'oauth2' do
           before do
-            swagger_doc[:securityDefinitions] = { oauth2: { type: :oauth2, scopes: [ 'read:blogs' ] } }
-            metadata[:operation][:security] = [ oauth2: [ 'read:blogs' ] ]
+            swagger_doc[:securityDefinitions] = { oauth2: { type: :oauth2, scopes: ['read:blogs'] } }
+            metadata[:operation][:security] = [oauth2: ['read:blogs']]
             allow(example).to receive(:Authorization).and_return('Bearer foobar')
           end
 
@@ -272,26 +273,26 @@ module Rswag
               basic: { type: :basic },
               api_key: { type: :apiKey, name: 'api_key', in: :query }
             }
-            metadata[:operation][:security] = [ { basic: [], api_key: [] } ]
+            metadata[:operation][:security] = [{ basic: [], api_key: [] }]
             allow(example).to receive(:Authorization).and_return('Basic foobar')
             allow(example).to receive(:api_key).and_return('foobar')
           end
 
-          it "sets both params to example values" do
+          it 'sets both params to example values' do
             expect(request[:headers]).to eq('HTTP_AUTHORIZATION' => 'Basic foobar')
             expect(request[:path]).to eq('/blogs?api_key=foobar')
           end
         end
 
-        context "path-level parameters" do
+        context 'path-level parameters' do
           before do
-            metadata[:operation][:parameters] = [ { name: 'q1', in: :query, type: :string } ]
-            metadata[:path_item][:parameters] = [ { name: 'q2', in: :query, type: :string } ]
+            metadata[:operation][:parameters] = [{ name: 'q1', in: :query, type: :string }]
+            metadata[:path_item][:parameters] = [{ name: 'q2', in: :query, type: :string }]
             allow(example).to receive(:q1).and_return('foo')
             allow(example).to receive(:q2).and_return('bar')
           end
 
-          it "populates operation and path level parameters " do
+          it 'populates operation and path level parameters ' do
             expect(request[:path]).to eq('/blogs?q1=foo&q2=bar')
           end
         end
@@ -299,7 +300,7 @@ module Rswag
         context 'referenced parameters' do
           before do
             swagger_doc[:parameters] = { q1: { name: 'q1', in: :query, type: :string } }
-            metadata[:operation][:parameters] = [ { '$ref' => '#/parameters/q1' } ]
+            metadata[:operation][:parameters] = [{ '$ref' => '#/parameters/q1' }]
             allow(example).to receive(:q1).and_return('foo')
           end
 
@@ -316,18 +317,18 @@ module Rswag
           end
         end
 
-        context "global consumes" do
-          before { swagger_doc[:consumes] = [ 'application/xml' ] }
+        context 'global consumes' do
+          before { swagger_doc[:consumes] = ['application/xml'] }
 
           it "defaults 'CONTENT_TYPE' to global value(s)" do
             expect(request[:headers]).to eq('CONTENT_TYPE' => 'application/xml')
           end
         end
 
-        context "global security requirements" do
+        context 'global security requirements' do
           before do
             swagger_doc[:securityDefinitions] = { apiKey: { type: :apiKey, name: 'api_key', in: :query } }
-            swagger_doc[:security] = [ apiKey: [] ]
+            swagger_doc[:security] = [apiKey: []]
             allow(example).to receive(:api_key).and_return('foobar')
           end
 
diff --git a/rswag-specs/spec/rswag/specs/response_validator_spec.rb b/rswag-specs/spec/rswag/specs/response_validator_spec.rb
index 1d05427..9411cbc 100644
--- a/rswag-specs/spec/rswag/specs/response_validator_spec.rb
+++ b/rswag-specs/spec/rswag/specs/response_validator_spec.rb
@@ -1,15 +1,16 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/response_validator'
 
 module Rswag
   module Specs
-
     describe ResponseValidator do
       subject { ResponseValidator.new(config) }
 
       before do
         allow(config).to receive(:get_swagger_doc).and_return(swagger_doc)
       end
-      let(:config) { double('config') } 
+      let(:config) { double('config') }
       let(:swagger_doc) { {} }
       let(:example) { double('example') }
       let(:metadata) do
@@ -20,7 +21,7 @@ module Rswag
             schema: {
               type: :object,
               properties: { text: { type: :string } },
-              required: [ 'text' ]
+              required: ['text']
             }
           }
         }
@@ -32,26 +33,26 @@ module Rswag
           OpenStruct.new(
             code: '200',
             headers: { 'X-Rate-Limit-Limit' => '10' },
-            body: "{\"text\":\"Some comment\"}"
+            body: '{"text":"Some comment"}'
           )
         end
 
-        context "response matches metadata" do
+        context 'response matches metadata' do
           it { expect { call }.to_not raise_error }
         end
 
-        context "response code differs from metadata" do
+        context 'response code differs from metadata' do
           before { response.code = '400' }
           it { expect { call }.to raise_error /Expected response code/ }
         end
 
-        context "response headers differ from metadata" do
+        context 'response headers differ from metadata' do
           before { response.headers = {} }
           it { expect { call }.to raise_error /Expected response header/ }
         end
 
-        context "response body differs from metadata" do
-          before { response.body = "{\"foo\":\"Some comment\"}" }
+        context 'response body differs from metadata' do
+          before { response.body = '{"foo":"Some comment"}' }
           it { expect { call }.to raise_error /Expected response body/ }
         end
 
@@ -61,7 +62,7 @@ module Rswag
               'blog' => {
                 type: :object,
                 properties: { foo: { type: :string } },
-                required: [ 'foo' ]
+                required: ['foo']
               }
             }
             metadata[:response][:schema] = { '$ref' => '#/definitions/blog' }
diff --git a/rswag-specs/spec/rswag/specs/swagger_formatter_spec.rb b/rswag-specs/spec/rswag/specs/swagger_formatter_spec.rb
index f904fa5..302d062 100644
--- a/rswag-specs/spec/rswag/specs/swagger_formatter_spec.rb
+++ b/rswag-specs/spec/rswag/specs/swagger_formatter_spec.rb
@@ -1,9 +1,10 @@
+# frozen_string_literal: true
+
 require 'rswag/specs/swagger_formatter'
 require 'ostruct'
 
 module Rswag
   module Specs
-    
     describe SwaggerFormatter do
       subject { described_class.new(output, config) }
 
@@ -13,7 +14,7 @@ module Rswag
       end
       let(:config) { double('config') }
       let(:output) { double('output').as_null_object }
-      let(:swagger_root) { File.expand_path('../tmp/swagger', __FILE__) }
+      let(:swagger_root) { File.expand_path('tmp/swagger', __dir__) }
 
       describe '#example_group_finished(notification)' do
         before do
@@ -47,8 +48,8 @@ module Rswag
       end
 
       describe '#stop' do
-        before do 
-          FileUtils.rm_r(swagger_root) if File.exists?(swagger_root)
+        before do
+          FileUtils.rm_r(swagger_root) if File.exist?(swagger_root)
           allow(config).to receive(:swagger_docs).and_return(
             'v1/swagger.json' => { info: { version: 'v1' } },
             'v2/swagger.json' => { info: { version: 'v2' } }
@@ -64,7 +65,7 @@ module Rswag
         end
 
         after do
-          FileUtils.rm_r(swagger_root) if File.exists?(swagger_root)
+          FileUtils.rm_r(swagger_root) if File.exist?(swagger_root)
         end
       end
     end
diff --git a/test-app/app/models/blog.rb b/test-app/app/models/blog.rb
index 9fb7070..ea35f5a 100644
--- a/test-app/app/models/blog.rb
+++ b/test-app/app/models/blog.rb
@@ -1,11 +1,13 @@
+# frozen_string_literal: true
+
 class Blog < ActiveRecord::Base
   validates :content, presence: true
 
-  def as_json(options)
+  def as_json(_options)
     {
       id: id,
       title: title,
-      content: nil,
+      content: content,
       thumbnail: thumbnail
     }
   end
diff --git a/test-app/spec/integration/auth_tests_spec.rb b/test-app/spec/integration/auth_tests_spec.rb
index 8e47d2e..21917fb 100644
--- a/test-app/spec/integration/auth_tests_spec.rb
+++ b/test-app/spec/integration/auth_tests_spec.rb
@@ -1,12 +1,13 @@
+# frozen_string_literal: true
+
 require 'swagger_helper'
 
 describe 'Auth Tests API', type: :request, swagger_doc: 'v1/swagger.json' do
-
   path '/auth-tests/basic' do
     post 'Authenticates with basic auth' do
       tags 'Auth Tests'
       operationId 'testBasicAuth'
-      security [ basic_auth: [] ]
+      security [basic_auth: []]
 
       response '204', 'Valid credentials' do
         let(:Authorization) { "Basic #{::Base64.strict_encode64('jsmith:jspass')}" }
@@ -24,7 +25,7 @@ describe 'Auth Tests API', type: :request, swagger_doc: 'v1/swagger.json' do
     post 'Authenticates with an api key' do
       tags 'Auth Tests'
       operationId 'testApiKey'
-      security [ api_key: [] ]
+      security [api_key: []]
 
       response '204', 'Valid credentials' do
         let(:api_key) { 'foobar' }
@@ -42,7 +43,7 @@ describe 'Auth Tests API', type: :request, swagger_doc: 'v1/swagger.json' do
     post 'Authenticates with basic auth and api key' do
       tags 'Auth Tests'
       operationId 'testBasicAndApiKey'
-      security [ { basic_auth: [], api_key: [] } ]
+      security [{ basic_auth: [], api_key: [] }]
 
       response '204', 'Valid credentials' do
         let(:Authorization) { "Basic #{::Base64.strict_encode64('jsmith:jspass')}" }
diff --git a/test-app/spec/integration/blogs_spec.rb b/test-app/spec/integration/blogs_spec.rb
index 08297f8..e42ed3a 100644
--- a/test-app/spec/integration/blogs_spec.rb
+++ b/test-app/spec/integration/blogs_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'swagger_helper'
 
 describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
@@ -10,9 +12,12 @@ describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
       operationId 'createBlog'
       consumes 'application/json'
       produces 'application/json'
-      parameter name: :blog, in: :body, schema: { '$ref' => '#/components/schemas/blog' }
+      # parameter name: :blog, in: :body, schema: { '$ref' => '#/components/schemas/blog' }
 
-      let(:blog) { { title: 'foo', content: 'bar' } }
+      request_body_json schema: { '$ref' => '#/components/schemas/blog' },
+                        examples: :blog
+
+      let(:blog) { { blog: { title: 'foo', content: 'bar' } } }
 
       response '201', 'blog created' do
         run_test!
@@ -21,7 +26,7 @@ describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
       response '422', 'invalid request' do
         schema '$ref' => '#/components/schemas/errors_object'
 
-        let(:blog) { { title: 'foo' } }
+        let(:blog) { { blog: { title: 'foo' } } }
         run_test! do |response|
           expect(response.body).to include("can't be blank")
         end
@@ -42,7 +47,7 @@ describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
       end
 
       response '406', 'unsupported accept header' do
-        let(:'Accept') { 'application/foo' }
+        let(:Accept) { 'application/foo' }
         run_test!
       end
     end
@@ -68,11 +73,11 @@ describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
         schema '$ref' => '#/components/schemas/blog'
 
         examples 'application/json' => {
-            id: 1,
-            title: 'Hello world!',
-            content: 'Hello world and hello universe. Thank you all very much!!!',
-            thumbnail: "thumbnail.png"
-          }
+          id: 1,
+          title: 'Hello world!',
+          content: 'Hello world and hello universe. Thank you all very much!!!',
+          thumbnail: 'thumbnail.png'
+        }
 
         let(:id) { blog.id }
         run_test!
@@ -96,10 +101,10 @@ describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
       description 'Upload a thumbnail for specific blog by id'
       operationId 'uploadThumbnailBlog'
       consumes 'multipart/form-data'
-      parameter name: :file, :in => :formData, :type => :file, required: true
+      parameter name: :file, in: :formData, type: :file, required: true
 
       response '200', 'blog updated' do
-        let(:file) { Rack::Test::UploadedFile.new(Rails.root.join("spec/fixtures/thumbnail.png")) }
+        let(:file) { Rack::Test::UploadedFile.new(Rails.root.join('spec/fixtures/thumbnail.png')) }
         run_test!
       end
     end
diff --git a/test-app/spec/rails_helper.rb b/test-app/spec/rails_helper.rb
index 98c8fc3..d1bc219 100644
--- a/test-app/spec/rails_helper.rb
+++ b/test-app/spec/rails_helper.rb
@@ -1,8 +1,10 @@
+# frozen_string_literal: true
+
 # This file is copied to spec/ when you run 'rails generate rspec:install'
 ENV['RAILS_ENV'] ||= 'test'
-require File.expand_path('../../config/environment', __FILE__)
+require File.expand_path('../config/environment', __dir__)
 # Prevent database truncation if the environment is production
-abort("The Rails environment is running in production mode!") if Rails.env.production?
+abort('The Rails environment is running in production mode!') if Rails.env.production?
 require 'spec_helper'
 require 'rspec/rails'
 # Add additional requires below this line. Rails is not loaded until this point!
@@ -54,6 +56,4 @@ RSpec.configure do |config|
   Capybara.javascript_driver = :webkit
 end
 
-Capybara::Webkit.configure do |config|
-  config.block_unknown_urls
-end
+Capybara::Webkit.configure(&:block_unknown_urls)
diff --git a/test-app/spec/rake/rswag_specs_swaggerize_spec.rb b/test-app/spec/rake/rswag_specs_swaggerize_spec.rb
index 0a590ee..3b3af2a 100644
--- a/test-app/spec/rake/rswag_specs_swaggerize_spec.rb
+++ b/test-app/spec/rake/rswag_specs_swaggerize_spec.rb
@@ -1,15 +1,18 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'rake'
 
 describe 'rswag:specs:swaggerize' do
   let(:swagger_root) { Rails.root.to_s + '/swagger' }
-  before do 
+  before do
     TestApp::Application.load_tasks
-    FileUtils.rm_r(swagger_root) if File.exists?(swagger_root)
+    FileUtils.rm_r(swagger_root) if File.exist?(swagger_root)
   end
 
   it 'generates Swagger JSON files from integration specs' do
-    expect { Rake::Task['rswag:specs:swaggerize'].invoke }.not_to raise_exception
+    Rake::Task['rswag:specs:swaggerize'].invoke
+    # expect { }.not_to raise_exception(StandardError)
     expect(File).to exist("#{swagger_root}/v1/swagger.json")
   end
 end
diff --git a/test-app/spec/spec_helper.rb b/test-app/spec/spec_helper.rb
index d20f071..46f57e2 100644
--- a/test-app/spec/spec_helper.rb
+++ b/test-app/spec/spec_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file was generated by the `rails generate rspec:install` command. Conventionally, all
 # specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.
 # The generated `.rspec` file contains `--require spec_helper` which will cause
@@ -51,53 +53,51 @@ RSpec.configure do |config|
     File.delete("#{Rails.root}/tmp/thumbnail.png") if File.file?("#{Rails.root}/tmp/thumbnail.png")
   end
 
-# The settings below are suggested to provide a good initial experience
-# with RSpec, but feel free to customize to your heart's content.
-=begin
-  # This allows you to limit a spec run to individual examples or groups
-  # you care about by tagging them with `:focus` metadata. When nothing
-  # is tagged with `:focus`, all examples get run. RSpec also provides
-  # aliases for `it`, `describe`, and `context` that include `:focus`
-  # metadata: `fit`, `fdescribe` and `fcontext`, respectively.
-  config.filter_run_when_matching :focus
-
-  # Allows RSpec to persist some state between runs in order to support
-  # the `--only-failures` and `--next-failure` CLI options. We recommend
-  # you configure your source control system to ignore this file.
-  config.example_status_persistence_file_path = "spec/examples.txt"
-
-  # Limits the available syntax to the non-monkey patched syntax that is
-  # recommended. For more details, see:
-  #   - http://rspec.info/blog/2012/06/rspecs-new-expectation-syntax/
-  #   - http://www.teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
-  #   - http://rspec.info/blog/2014/05/notable-changes-in-rspec-3/#zero-monkey-patching-mode
-  config.disable_monkey_patching!
-
-  # Many RSpec users commonly either run the entire suite or an individual
-  # file, and it's useful to allow more verbose output when running an
-  # individual spec file.
-  if config.files_to_run.one?
-    # Use the documentation formatter for detailed output,
-    # unless a formatter has already been configured
-    # (e.g. via a command-line flag).
-    config.default_formatter = 'doc'
-  end
-
-  # Print the 10 slowest examples and example groups at the
-  # end of the spec run, to help surface which specs are running
-  # particularly slow.
-  config.profile_examples = 10
-
-  # Run specs in random order to surface order dependencies. If you find an
-  # order dependency and want to debug it, you can fix the order by providing
-  # the seed, which is printed after each run.
-  #     --seed 1234
-  config.order = :random
-
-  # Seed global randomization in this process using the `--seed` CLI option.
-  # Setting this allows you to use `--seed` to deterministically reproduce
-  # test failures related to randomization by passing the same `--seed` value
-  # as the one that triggered the failure.
-  Kernel.srand config.seed
-=end
+  # The settings below are suggested to provide a good initial experience
+  # with RSpec, but feel free to customize to your heart's content.
+  #   # This allows you to limit a spec run to individual examples or groups
+  #   # you care about by tagging them with `:focus` metadata. When nothing
+  #   # is tagged with `:focus`, all examples get run. RSpec also provides
+  #   # aliases for `it`, `describe`, and `context` that include `:focus`
+  #   # metadata: `fit`, `fdescribe` and `fcontext`, respectively.
+  #   config.filter_run_when_matching :focus
+  #
+  #   # Allows RSpec to persist some state between runs in order to support
+  #   # the `--only-failures` and `--next-failure` CLI options. We recommend
+  #   # you configure your source control system to ignore this file.
+  #   config.example_status_persistence_file_path = "spec/examples.txt"
+  #
+  #   # Limits the available syntax to the non-monkey patched syntax that is
+  #   # recommended. For more details, see:
+  #   #   - http://rspec.info/blog/2012/06/rspecs-new-expectation-syntax/
+  #   #   - http://www.teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
+  #   #   - http://rspec.info/blog/2014/05/notable-changes-in-rspec-3/#zero-monkey-patching-mode
+  #   config.disable_monkey_patching!
+  #
+  #   # Many RSpec users commonly either run the entire suite or an individual
+  #   # file, and it's useful to allow more verbose output when running an
+  #   # individual spec file.
+  #   if config.files_to_run.one?
+  #     # Use the documentation formatter for detailed output,
+  #     # unless a formatter has already been configured
+  #     # (e.g. via a command-line flag).
+  #     config.default_formatter = 'doc'
+  #   end
+  #
+  #   # Print the 10 slowest examples and example groups at the
+  #   # end of the spec run, to help surface which specs are running
+  #   # particularly slow.
+  #   config.profile_examples = 10
+  #
+  #   # Run specs in random order to surface order dependencies. If you find an
+  #   # order dependency and want to debug it, you can fix the order by providing
+  #   # the seed, which is printed after each run.
+  #   #     --seed 1234
+  #   config.order = :random
+  #
+  #   # Seed global randomization in this process using the `--seed` CLI option.
+  #   # Setting this allows you to use `--seed` to deterministically reproduce
+  #   # test failures related to randomization by passing the same `--seed` value
+  #   # as the one that triggered the failure.
+  #   Kernel.srand config.seed
 end
diff --git a/test-app/spec/swagger_helper.rb b/test-app/spec/swagger_helper.rb
index e206999..2ac0de3 100644
--- a/test-app/spec/swagger_helper.rb
+++ b/test-app/spec/swagger_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 RSpec.configure do |config|
@@ -5,7 +7,7 @@ RSpec.configure do |config|
   # NOTE: If you're using the rswag-api to serve API descriptions, you'll need
   # to ensure that it's configured to serve Swagger from the same folder
   config.swagger_root = Rails.root.to_s + '/swagger'
-
+  config.swagger_dry_run = false
   # Define one or more Swagger documents and provide global metadata for each one
   # When you run the 'rswag:specs:to_swagger' rake task, the complete Swagger will
   # be generated at the provided relative path under swagger_root
@@ -21,54 +23,54 @@ RSpec.configure do |config|
       },
       paths: {},
       servers: [
-          {
-              url: "https://{defaultHost}",
-              variables: {
-                  defaultHost: {
-                      default: "www.example.com"
-                  }
-              }
+        {
+          url: 'https://{defaultHost}',
+          variables: {
+            defaultHost: {
+              default: 'www.example.com'
+            }
           }
+        }
       ],
- 
+
       components: {
         schemas: {
-            errors_object: {
-                type: 'object',
-                properties: {
-                    errors: { '$ref' => '#/components/schemas/errors_map' }
-                }
-            },
-            errors_map: {
-                type: 'object',
-                additionalProperties: {
-                    type: 'array',
-                    items: { type: 'string' }
-                }
-            },
-            blog: {
-                type: 'object',
-                properties: {
-                    id: { type: 'integer' },
-                    title: { type: 'string' },
-                    content: { type: 'string', nullable: true },
-                    thumbnail: { type: 'string'}
-                },
-                required: [ 'id', 'title', 'content', 'thumbnail' ]
+          errors_object: {
+            type: 'object',
+            properties: {
+              errors: { '$ref' => '#/components/schemas/errors_map' }
             }
+          },
+          errors_map: {
+            type: 'object',
+            additionalProperties: {
+              type: 'array',
+              items: { type: 'string' }
+            }
+          },
+          blog: {
+            type: 'object',
+            properties: {
+              id: { type: 'integer' },
+              title: { type: 'string' },
+              content: { type: 'string', nullable: true },
+              thumbnail: { type: 'string' }
+            },
+            required: %w[id title content thumbnail]
+          }
         },
         securitySchemes: {
-            basic_auth: {
-                type: :http,
-                scheme: :basic
-            },
-            api_key: {
-                type: :apiKey,
-                name: 'api_key',
-                in: :query
-            }
+          basic_auth: {
+            type: :http,
+            scheme: :basic
+          },
+          api_key: {
+            type: :apiKey,
+            name: 'api_key',
+            in: :query
+          }
         }
-      },
+      }
     }
   }
 end