Merge pull request #42 from PavelBezpalov/master

Add way for examples generation from responses

.gitignore

@@ -2,3 +2,4 @@
 **/*/log
 **/*/*.gem
 **/*/*.sqlite3
+**/*/public/assets

.travis.yml

@@ -7,4 +7,8 @@ env:
   - "RAILS_VERSION=5.0.0"
 cache: bundler
 install: bundle update
+before_script:
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+  - sleep 3 # give xvfb some time to start
 script: ./ci/test.sh

Gemfile

@@ -25,5 +25,12 @@ group :test do
   gem 'test-unit'
   gem 'rspec-rails'
   gem 'generator_spec'
+  gem 'capybara'
+  gem 'capybara-webkit'
   gem 'rswag-specs', path: './rswag-specs'
 end
+
+group :assets do
+  gem 'uglifier'
+  gem 'therubyracer'
+end

Gemfile.lock

@@ -1,13 +1,13 @@
 PATH
   remote: ./rswag-api
   specs:
-    rswag-api (1.0.1)
+    rswag-api (1.2.0)
       rails (>= 3.1, < 5.1)
 
 PATH
   remote: ./rswag-specs
   specs:
-    rswag-specs (1.0.1)
+    rswag-specs (1.2.0)
       json-schema (~> 2.2)
       rails (>= 3.1, < 5.1)
       rspec-rails (>= 2.14, < 4)
@@ -15,7 +15,7 @@ PATH
 PATH
   remote: ./rswag-ui
   specs:
-    rswag-ui (1.0.1)
+    rswag-ui (1.2.0)
       rails (>= 3.1, < 5.1)
 
 GEM
@@ -51,8 +51,19 @@ GEM
     addressable (2.4.0)
     arel (3.0.3)
     builder (3.0.4)
+    capybara (2.10.1)
+      addressable
+      mime-types (>= 1.16)
+      nokogiri (>= 1.3.3)
+      rack (>= 1.0.0)
+      rack-test (>= 0.5.4)
+      xpath (~> 2.0)
+    capybara-webkit (1.1.0)
+      capybara (~> 2.0, >= 2.0.2)
+      json
     diff-lcs (1.2.5)
     erubis (2.7.0)
+    execjs (2.7.0)
     generator_spec (0.9.3)
       activesupport (>= 3.0.0)
       railties (>= 3.0.0)
@@ -62,11 +73,15 @@ GEM
     json (1.8.3)
     json-schema (2.7.0)
       addressable (>= 2.4)
+    libv8 (3.16.14.15)
     mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.25.1)
+    mini_portile2 (2.1.0)
     multi_json (1.12.1)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
     polyglot (0.3.5)
     power_assert (0.3.1)
     rack (1.4.7)
@@ -94,6 +109,7 @@ GEM
     rake (11.3.0)
     rdoc (3.12.2)
       json (~> 1.4)
+    ref (2.0.0)
     rspec-core (3.5.4)
       rspec-support (~> 3.5.0)
     rspec-expectations (3.5.0)
@@ -124,17 +140,26 @@ GEM
       railties (~> 3.0)
     test-unit (3.2.1)
       power_assert
+    therubyracer (0.12.2)
+      libv8 (~> 3.16.14.0)
+      ref
     thor (0.19.1)
     tilt (1.4.1)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
     tzinfo (0.3.51)
+    uglifier (3.0.2)
+      execjs (>= 0.3.0, < 3)
+    xpath (2.0.0)
+      nokogiri (~> 1.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  capybara
+  capybara-webkit
   generator_spec
   rails (= 3.2.22)
   rspec-rails
@@ -144,3 +169,5 @@ DEPENDENCIES
   sqlite3
   strong_parameters
   test-unit
+  therubyracer
+  uglifier

README.md

@@ -171,8 +171,8 @@ The steps described above will get you up and running with minimal setup. Howeve
 |Gem|Description|Added/Updated|
 |---------|-----------|-------------|
 |__rswag-specs__|Swagger-based DSL for rspec & accompanying rake task for generating Swagger files|_spec/swagger_helper.rb_|
-|__rswag-api__  |Rails Engine that exposes the Swagger files as JSON endpoints|_config/initializers/rswag-api.rb, config/routes.rb_|
+|__rswag-api__  |Rails Engine that exposes your Swagger files as JSON endpoints|_config/initializers/rswag-api.rb, config/routes.rb_|
-|__rswag-ui__   |Rails Engine that includes [swagger-ui](https://github.com/swagger-api/swagger-ui) and powers it from the Swagger endpoints|_config/initializers/rswag-ui.rb, config/routes.rb_|
+|__rswag-ui__   |Rails Engine that includes [swagger-ui](https://github.com/swagger-api/swagger-ui) and powers it from your Swagger endpoints|_config/initializers/rswag-ui.rb, config/routes.rb_|
 
 ### Output Location for Generated Swagger Files ###
 
@@ -243,6 +243,63 @@ describe 'Blogs API' do
 end
 ```
 
+### Response headers ###
+
+In Rswag, you could use `header` method inside the response block to specify header objects for this response. Rswag will validate your response headers with those header objects and inject them into the generated swagger file:
+
+```ruby
+# spec/integration/comments_spec.rb
+describe 'Blogs API' do
+
+  path '/blogs/{blog_id}/comments' do
+
+    post 'Creates a comment' do
+
+      response 422, 'invalid request' do
+        header 'X-Rate-Limit-Limit', type: :integer, description: 'The number of allowed requests in the current period'
+        header 'X-Rate-Limit-Remaining', type: :integer, description: 'The number of remaining requests in the current period'
+  ...
+end
+```
+
+### Response examples ###
+
+You can provide custom response examples to the generated swagger file by calling the method `examples` inside the response block:
+
+```ruby
+# spec/integration/blogs_spec.rb
+describe 'Blogs API' do
+
+  path '/blogs/{blog_id}' do
+
+    get 'Retrieves a blog' do
+
+      response 200, 'blog found' do
+        examples 'application/json' => {
+            id: 1,
+            title: 'Hello world!',
+            content: '...'
+          }
+  ...
+end
+```
+
+### Enable generation examples from responses ###
+
+To enable examples generation from responses add callback above run_test! like:
+```ruby
+after do |example|
+  example.metadata[:response][:examples] = { 'application/json' => JSON.parse(response.body, symbolize_names: true) }
+end
+```
+You need to disable --dry-run option for Rspec > 3
+
+Add to application.rb:
+```ruby
+RSpec.configure do |config|
+  config.swagger_dry_run = false
+end
+```
 ### Route Prefix for Swagger JSON Endpoints ###
 
 The functionality to expose Swagger files, such as those generated by rswag-specs, as JSON endpoints is implemented as a Rails Engine. As with any Engine, you can change it's mount prefix in _routes.rb_:

rswag-api/lib/rswag/api/version.rb

@@ -1,5 +1,5 @@
 module Rswag
   module Api
-    VERSION = '1.0.2'
+    VERSION = '1.2.0'
   end
 end

rswag-specs/lib/rswag/specs.rb

@@ -12,6 +12,7 @@ module Rswag
     ::RSpec.configure do |c|
       c.add_setting :swagger_root
       c.add_setting :swagger_docs
+      c.add_setting :swagger_dry_run
       c.extend ExampleGroupHelpers, type: :request
       c.include ExampleHelpers, type: :request
     end

rswag-specs/lib/rswag/specs/configuration.rb

@@ -25,6 +25,12 @@ module Rswag
         end
       end
 
+      def swagger_dry_run
+        @swagger_dry_run ||= begin
+          @rspec_config.swagger_dry_run.nil? || @rspec_config.swagger_dry_run
+        end
+      end
+
       def get_swagger_doc(name)
         return swagger_docs.values.first if name.nil?
         raise ConfigurationError, "Unknown swagger_doc '#{name}'" unless swagger_docs[name]

rswag-specs/lib/rswag/specs/example_group_helpers.rb

@@ -61,6 +61,14 @@ module Rswag
         metadata[:response][:headers][name] = attributes
       end
 
+      # NOTE: Similar to 'description', 'examples' need to handle the case when
+      # being invoked with no params to avoid overriding 'examples' method of
+      # rspec-core ExampleGroup
+      def examples(example = nil)
+        return super() if example.nil?
+        metadata[:response][:examples] = example
+      end
+
       def run_test!
         # NOTE: rspec 2.x support
         if RSPEC_VERSION < 3

rswag-specs/lib/rswag/specs/extended_schema.rb

@@ -0,0 +1,25 @@
+require 'json-schema'
+
+module Rswag
+  module Specs
+    class ExtendedSchema < JSON::Schema::Validator
+
+      def initialize
+        super
+        extend_schema_definition("http://json-schema.org/draft-04/schema#")
+        @attributes['type'] = ExtendedTypeAttribute
+        @uri = URI.parse('http://tempuri.org/rswag/specs/extended_schema')
+      end
+    end
+
+    class ExtendedTypeAttribute < JSON::Schema::TypeV4Attribute
+
+      def self.validate(current_schema, data, fragments, processor, validator, options={})
+        return if data.nil? && current_schema.schema['x-nullable'] == true
+        super
+      end
+    end
+
+    JSON::Validator.register_validator(ExtendedSchema.new)
+  end
+end

rswag-specs/lib/rswag/specs/response_validator.rb

@@ -1,4 +1,6 @@
+require 'active_support/core_ext/hash/slice'
 require 'json-schema'
+require 'rswag/specs/extended_schema'
 
 module Rswag
   module Specs
@@ -11,6 +13,7 @@ module Rswag
 
       def validate!(response)
         validate_code!(response.code)
+        validate_headers!(response.headers)
         validate_body!(response.body)
       end
 
@@ -22,11 +25,24 @@ module Rswag
         end
       end
 
+      def validate_headers!(headers)
+        header_schema = @api_metadata[:response][:headers]
+        return if header_schema.nil?
+
+        header_schema.keys.each do |header_name|
+          raise UnexpectedResponse, "Expected response header #{header_name} to be present" if headers[header_name.to_s].nil?
+        end
+      end
+
       def validate_body!(body)
-        schema = @api_metadata[:response][:schema]
+        response_schema = @api_metadata[:response][:schema]
-        return if schema.nil?
+        return if response_schema.nil?
+
         begin
-          JSON::Validator.validate!(schema.merge(@global_metadata), body)
+          validation_schema = response_schema
+            .merge('$schema' => 'http://tempuri.org/rswag/specs/extended_schema')
+            .merge(@global_metadata.slice(:definitions))
+          JSON::Validator.validate!(validation_schema, body)
         rescue JSON::Schema::ValidationError => ex
           raise UnexpectedResponse, "Expected response body to match schema: #{ex.message}"
         end

rswag-specs/lib/rswag/specs/version.rb

@@ -1,5 +1,5 @@
 module Rswag
   module Specs
-    VERSION = '1.0.2'
+    VERSION = '1.2.0'
   end
 end

rswag-specs/lib/tasks/rswag-specs_tasks.rake

@@ -8,7 +8,7 @@ namespace :rswag do
       t.pattern = 'spec/requests/**/*_spec.rb, spec/api/**/*_spec.rb, spec/integration/**/*_spec.rb'
 
       # NOTE: rspec 2.x support
-      if Rswag::Specs::RSPEC_VERSION > 2
+      if Rswag::Specs::RSPEC_VERSION > 2 && Rswag::Specs.config.swagger_dry_run
         t.rspec_opts = [ '--format Rswag::Specs::SwaggerFormatter', '--dry-run', '--order defined' ]
       else
         t.rspec_opts = [ '--format Rswag::Specs::SwaggerFormatter', '--order defined' ]

rswag-specs/spec/rswag/specs/example_group_helpers_spec.rb

@@ -151,6 +151,25 @@ module Rswag
           )
         end
       end
+
+      describe '#examples(example)' do
+        let(:json_example) do
+          {
+            'application/json' => {
+              foo: 'bar'
+            }
+          }
+        end
+        let(:api_metadata) { { response: {} } }
+
+        before do
+          subject.examples(json_example)
+        end
+
+        it "adds to the 'response examples' metadata" do
+          expect(api_metadata[:response][:examples]).to eq(json_example)
+        end
+      end
     end
   end
 end

rswag-specs/spec/rswag/specs/response_validator_spec.rb

@@ -66,6 +66,42 @@ module Rswag
             it { expect { call }.to raise_error UnexpectedResponse }
           end
         end
+
+        context "'headers' provided" do
+          before do
+            api_metadata[:response][:headers] = {
+              'X-Rate-Limit-Limit' => {
+                description: 'The number of allowed requests in the current period',
+                type: 'integer'
+              },
+              'X-Rate-Limit-Remaining' => {
+                description: 'The number of remaining requests in the current period',
+                type: 'integer'
+              },
+              'X-Rate-Limit-Reset' => {
+                description: 'The number of seconds left in the current period',
+                type: 'integer'
+              }
+            }
+          end
+
+          context 'response code & body matches' do
+            let(:response) { OpenStruct.new(code: 200, body: '{}', headers: {
+              'X-Rate-Limit-Limit' => 1,
+              'X-Rate-Limit-Remaining' => 1,
+              'X-Rate-Limit-Reset' => 1
+            }) }
+            it { expect { call }.to_not raise_error }
+          end
+
+          context 'response code matches & body does not' do
+            let(:response) { OpenStruct.new(code: 200, body: '{}', headers: {
+              'X-Rate-Limit-Limit' => 1,
+              'X-Rate-Limit-Remaining' => 1
+            }) }
+            it { expect { call }.to raise_error UnexpectedResponse }
+          end
+        end
       end
     end
   end

rswag-ui/app/views/rswag/ui/home/index.html.erb

@@ -3,33 +3,33 @@
 <head>
   <meta charset="UTF-8">
   <title>Swagger UI</title>
-  <link rel="icon" type="image/png" href="/assets/swagger-ui/images/favicon-32x32.png" sizes="32x32" />
+  <link rel="icon" type="image/png" href="<%= asset_path 'swagger-ui/images/favicon-32x32.png' %>" sizes="32x32" />
-  <link rel="icon" type="image/png" href="/assets/swagger-ui/images/favicon-16x16.png" sizes="16x16" />
+  <link rel="icon" type="image/png" href="<%= asset_path 'swagger-ui/images/favicon-16x16.png' %>" sizes="16x16" />
-  <link href='/assets/swagger-ui/css/typography.css' media='screen' rel='stylesheet' type='text/css'/>
+  <link href="<%= asset_path 'swagger-ui/css/typography.css' %>" media='screen' rel='stylesheet' type='text/css'/>
-  <link href='/assets/swagger-ui/css/reset.css' media='screen' rel='stylesheet' type='text/css'/>
+  <link href="<%= asset_path 'swagger-ui/css/reset.css' %>" media='screen' rel='stylesheet' type='text/css'/>
-  <link href='/assets/swagger-ui/css/screen.css' media='screen' rel='stylesheet' type='text/css'/>
+  <link href="<%= asset_path 'swagger-ui/css/screen.css' %>" media='screen' rel='stylesheet' type='text/css'/>
-  <link href='/assets/swagger-ui/css/reset.css' media='print' rel='stylesheet' type='text/css'/>
+  <link href="<%= asset_path 'swagger-ui/css/reset.css' %>" media='print' rel='stylesheet' type='text/css'/>
-  <link href='/assets/swagger-ui/css/print.css' media='print' rel='stylesheet' type='text/css'/>
+  <link href="<%= asset_path 'swagger-ui/css/print.css' %>" media='print' rel='stylesheet' type='text/css'/>
 
-  <script src='/assets/swagger-ui/lib/object-assign-pollyfill.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/object-assign-pollyfill.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/jquery-1.8.0.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/jquery-1.8.0.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/jquery.slideto.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/jquery.slideto.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/jquery.wiggle.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/jquery.wiggle.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/jquery.ba-bbq.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/jquery.ba-bbq.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/handlebars-4.0.5.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/handlebars-4.0.5.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/lodash.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/lodash.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/backbone-min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/backbone-min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/swagger-ui.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/swagger-ui.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/highlight.9.1.0.pack.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/highlight.9.1.0.pack.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/highlight.9.1.0.pack_extended.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/highlight.9.1.0.pack_extended.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/jsoneditor.min.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/jsoneditor.min.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/marked.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/marked.js' %>" type='text/javascript'></script>
-  <script src='/assets/swagger-ui/lib/swagger-oauth.js' type='text/javascript'></script>
+  <script src="<%= asset_path 'swagger-ui/lib/swagger-oauth.js' %>" type='text/javascript'></script>
 
   <!-- Some basic translations -->
-  <!-- <script src='/assets/swagger-ui/lang/translator.js' type='text/javascript'></script> -->
+  <!-- <script src="<%= asset_path 'swagger-ui/lang/translator.js' %>" type='text/javascript'></script> -->
-  <!-- <script src='/assets/swagger-ui/lang/ru.js' type='text/javascript'></script> -->
+  <!-- <script src="<%= asset_path 'swagger-ui/lang/ru.js' %>" type='text/javascript'></script> -->
-  <!-- <script src='/assets/swagger-ui/lang/en.js' type='text/javascript'></script> -->
+  <!-- <script src="<%= asset_path 'swagger-ui/lang/en.js' %>" type='text/javascript'></script> -->
 
   <script type="text/javascript">
     $(function () {
@@ -84,7 +84,7 @@
 <body class="swagger-section">
 <div id='header'>
   <div class="swagger-ui-wrap">
-    <a id="logo" href="http://swagger.io"><img class="logo__img" alt="swagger" height="30" width="30" src="/assets/swagger-ui/images/logo_small.png" /><span class="logo__title">swagger</span></a>
+    <a id="logo" href="http://swagger.io"><img class="logo__img" alt="swagger" height="30" width="30" src="<%= asset_path 'swagger-ui/images/logo_small.png' %>" /><span class="logo__title">swagger</span></a>
     <form id='api_selector'>
       <div class='input'><input placeholder="http://example.com/api" id="input_baseUrl" name="baseUrl" type="text"/></div>
       <div id='auth_container'></div>

rswag-ui/lib/rswag/ui/version.rb

@@ -1,5 +1,5 @@
 module Rswag
   module Ui
-    VERSION = '1.0.2'
+    VERSION = '1.2.0'
   end
 end

rswag-ui/vendor/assets/components/swagger-ui/css/print.css.erb

@@ -880,7 +880,7 @@
   padding: 6px 8px;
 }
 .swagger-section .swagger-ui-wrap ul#resources li.resource ul.endpoints li.endpoint ul.operations li.operation div.content div.sandbox_header span.response_throbber {
-  background-image: url('../images/throbber.gif');
+  background-image: url(<%= asset_path('swagger-ui/images/throbber.gif') %>);
   width: 128px;
   height: 16px;
   display: block;
@@ -1222,7 +1222,7 @@
   height: 18px;
   vertical-align: middle;
   display: inline-block;
-  background: url(../images/explorer_icons.png) no-repeat;
+  background: url(<%= asset_path('swagger-ui/images/explorer_icons.png') %>) no-repeat;
 }
 .swagger-section .authorize__btn_operation_login {
   background-position: 0 0;

rswag-ui/vendor/assets/components/swagger-ui/css/screen.css.erb

@@ -880,7 +880,7 @@
   padding: 6px 8px;
 }
 .swagger-section .swagger-ui-wrap ul#resources li.resource ul.endpoints li.endpoint ul.operations li.operation div.content div.sandbox_header span.response_throbber {
-  background-image: url('../images/throbber.gif');
+  background-image: url(<%= asset_path('swagger-ui/images/throbber.gif') %>);
   width: 128px;
   height: 16px;
   display: block;
@@ -1222,7 +1222,7 @@
   height: 18px;
   vertical-align: middle;
   display: inline-block;
-  background: url(../images/explorer_icons.png) no-repeat;
+  background: url(<%= asset_path('swagger-ui/images/explorer_icons.png') %>) no-repeat;
 }
 .swagger-section .authorize__btn_operation_login {
   background-position: 0 0;
@@ -1354,7 +1354,7 @@
   height: 18px;
   vertical-align: middle;
   display: inline-block;
-  background: url(../images/explorer_icons.png) no-repeat;
+  background: url(<%= asset_path('swagger-ui/images/explorer_icons.png') %>) no-repeat;
 }
 .swagger-section .api-ic .api_information_panel {
   position: relative;

rswag-ui/vendor/assets/components/swagger-ui/css/style.css.erb

@@ -2,7 +2,7 @@
   font-size: 1.5em;
   font-weight: bold;
   text-decoration: none;
-  background: transparent url(../images/logo.png) no-repeat left center;
+  background: transparent url(<%= asset_path('swagger-ui/images/logo.png') %>) no-repeat left center;
   padding: 20px 0 20px 40px;
 }
 #text-head {
@@ -64,7 +64,7 @@ h1 {
   width: 1500px;
   margin: auto;
   margin-top: 0;
-  background-image: url('../images/shield.png');
+  background-image: url(<%= asset_path('swagger-ui/images/shield.png') %>);
   background-repeat: no-repeat;
   background-position: -40px -20px;
   margin-bottom: 210px;

rswag-ui/vendor/assets/components/swagger-ui/css/typography.css

@@ -1,14 +0,0 @@
-/* Google Font's Droid Sans */
-@font-face {
-  font-family: 'Droid Sans';
-  font-style: normal;
-  font-weight: 400;
-  src: local('Droid Sans'), local('DroidSans'), url('../fonts/DroidSans.ttf'), format('truetype');
-}
-/* Google Font's Droid Sans Bold */
-@font-face {
-  font-family: 'Droid Sans';
-  font-style: normal;
-  font-weight: 700;
-  src: local('Droid Sans Bold'), local('DroidSans-Bold'), url('../fonts/DroidSans-Bold.ttf'), format('truetype');
-}

rswag-ui/vendor/assets/components/swagger-ui/css/typography.css.erb

@@ -0,0 +1,14 @@
+/* Google Font's Droid Sans */
+@font-face {
+  font-family: 'Droid Sans';
+  font-style: normal;
+  font-weight: 400;
+  src: local('Droid Sans'), local('DroidSans'), url(<%= asset_path('swagger-ui/fonts/DroidSans.ttf') %>), format('truetype');
+}
+/* Google Font's Droid Sans Bold */
+@font-face {
+  font-family: 'Droid Sans';
+  font-style: normal;
+  font-weight: 700;
+  src: local('Droid Sans Bold'), local('DroidSans-Bold'), url(<%= asset_path('swagger-ui/fonts/DroidSans-Bold.ttf') %>), format('truetype');
+}

rswag/lib/rswag/version.rb

@@ -1,3 +1,3 @@
 module Rswag
-  VERSION = '1.0.2'
+  VERSION = '1.2.0'
 end

test-app/app/controllers/blogs_controller.rb

@@ -17,6 +17,10 @@ class BlogsController < ApplicationController
   # GET /blogs/1
   def show
     @blog = Blog.find_by_id(params[:id])
+
+    fresh_when(@blog)
+    return unless stale?(@blog)
+
     respond_with @blog, status: :not_found and return unless @blog
     respond_with @blog
   end

test-app/config/environments/production.rb

@@ -0,0 +1,67 @@
+TestApp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # Code is not reloaded between requests
+  config.cache_classes = true
+
+  # Full error reports are disabled and caching is turned on
+  config.consider_all_requests_local       = false
+  config.action_controller.perform_caching = true
+
+  # Disable Rails's static asset server (Apache or nginx will already do this)
+  config.serve_static_assets = true
+
+  # Compress JavaScripts and CSS
+  config.assets.compress = true
+
+  # Don't fallback to assets pipeline if a precompiled asset is missed
+  config.assets.compile = false
+
+  # Generate digests for assets URLs
+  config.assets.digest = true
+
+  # Defaults to nil and saved in location specified by config.assets.prefix
+  # config.assets.manifest = YOUR_PATH
+
+  # Specifies the header that your server uses for sending files
+  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  # config.force_ssl = true
+
+  # See everything in the log (default is :info)
+  # config.log_level = :debug
+
+  # Prepend all log lines with the following tags
+  # config.log_tags = [ :subdomain, :uuid ]
+
+  # Use a different logger for distributed setups
+  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
+
+  # Use a different cache store in production
+  # config.cache_store = :mem_cache_store
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server
+  # config.action_controller.asset_host = "http://assets.example.com"
+
+  # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
+  # config.assets.precompile += %w( search.js )
+
+  # Disable delivery errors, bad email addresses will be ignored
+  # config.action_mailer.raise_delivery_errors = false
+
+  # Enable threaded mode
+  # config.threadsafe!
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation can not be found)
+  config.i18n.fallbacks = true
+
+  # Send deprecation notices to registered listeners
+  config.active_support.deprecation = :notify
+
+  # Log the query plan for queries taking more than this (works
+  # with SQLite, MySQL, and PostgreSQL)
+  # config.active_record.auto_explain_threshold_in_seconds = 0.5
+end

test-app/spec/features/swagger_ui_spec.rb

@@ -0,0 +1,12 @@
+require 'rails_helper'
+
+feature 'swagger-ui', js: true do
+
+  scenario 'browsing api-docs' do
+    visit '/api-docs'
+
+    expect(page).to have_content('GET /blogs Searches blogs')
+    expect(page).to have_content('POST /blogs Creates a blog')
+    expect(page).to have_content('GET /blogs/{id} Retrieves a blog')
+  end
+end

test-app/spec/integration/blogs_spec.rb

@@ -50,8 +50,18 @@ describe 'Blogs API', type: :request, swagger_doc: 'v1/swagger.json' do
       produces 'application/json'
 
       response '200', 'blog found' do
+        header 'ETag', type: :string
+        header 'Last-Modified', type: :string
+        header 'Cache-Control', type: :string
+
         schema '$ref' => '#/definitions/blog'
 
+        examples 'application/json' => {
+            id: 1,
+            title: 'Hello world!',
+            content: 'Hello world and hello universe. Thank you all very much!!!'
+          }
+
         let(:blog) { Blog.create(title: 'foo', content: 'bar') }
         let(:id) { blog.id }
         run_test!

test-app/spec/rails_helper.rb

@@ -50,4 +50,6 @@ RSpec.configure do |config|
   config.filter_rails_from_backtrace!
   # arbitrary gems may also be filtered via:
   # config.filter_gems_from_backtrace("gem name")
+
+  Capybara.javascript_driver = :webkit
 end

test-app/swagger/v1/swagger.json

@@ -89,8 +89,26 @@
         "responses": {
           "200": {
             "description": "blog found",
+            "headers": {
+              "ETag": {
+                "type": "string"
+              },
+              "Last-Modified": {
+                "type": "string"
+              },
+              "Cache-Control": {
+                "type": "string"
+              }
+            },
             "schema": {
               "$ref": "#/definitions/blog"
+            },
+            "examples": {
+              "application/json": {
+                "id": 1,
+                "title": "Hello world!",
+                "content": "Hello world and hello universe. Thank you all very much!!!"
+              }
             }
           },
           "404": {