Fixed camel case issue #457 (#458)

* Fixed camel case issue #457

* Description of fixed issue in CHANGELOG.md

* Fixing api_swagger_v2_detail_spec.rb with updated expectation

CHANGELOG.md

@@ -13,6 +13,7 @@
 * [#444](https://github.com/ruby-grape/grape-swagger//pull/444): Default value provided in the documentation hash, override the grape default [@scauglog](https://github.com/scauglog).
 * [#443](https://github.com/ruby-grape/grape-swagger/issues/443): Type provided in the documentation hash, override the grape type [@scauglog](https://github.com/scauglog).
 * [#454](https://github.com/ruby-grape/grape-swagger/pull/454): Include documented Hashes in documentation output - [@aschuster3](https://github.com/aschuster3).
+* [#457](https://github.com/ruby-grape/grape-swagger/issues/457): Using camel case on namespace throws exception on add_swagger_documentation method - [@rayko](https://github.com/rayko/).
 * Your contribution here.
 
 ### 0.21.0 (June 1, 2016)

lib/grape-swagger.rb

@@ -65,7 +65,6 @@ def combine_routes(app, doc_klass)
           next unless route_match
           resource = route_match.captures.first
           next if resource.empty?
-          resource.downcase!
           @target_class.combined_routes[resource] ||= []
           next if doc_klass.hide_documentation_path && route.path.match(/#{doc_klass.mount_path}($|\/|\(\.)/)
           @target_class.combined_routes[resource] << route

spec/swagger_v2/api_swagger_v2_detail_spec.rb

@@ -144,7 +144,7 @@ def app
     specify do
       expect(subject['paths']['/use_gfm_rc_detail']['get']).to include('description')
       expect(subject['paths']['/use_gfm_rc_detail']['get']['description']).to eql(
-        "<h1>This returns something</h1>\n\n<p># Burgers in Heaven</p>\n\n<blockquote>\n<p>A burger doesn&#39;t come for free</p>\n</blockquote>\n\n<p>If you want to reserve a burger in heaven, you have to do\nsome crazy stuff on earth.</p>\n<pre class=\"highlight plaintext\"><code>def do_good\nputs 'help people'\nend\n</code></pre>\n\n<ul>\n<li><em>Will go to Heaven:</em> Probably</li>\n<li><em>Will go to Hell:</em> Probably not</li>\n</ul>"
+        "<h1>This returns something</h1>\n\n<p># Burgers in Heaven</p>\n\n<blockquote>\n<p>A burger doesn&#39;t come for free</p>\n</blockquote>\n\n<p>If you want to reserve a burger in heaven, you have to do\nsome crazy stuff on earth.</p>\n<pre class=\"highlight plaintext\"><code>def do_good\nputs 'help people'\nend\n</code></pre>\n<ul>\n<li><em>Will go to Heaven:</em> Probably</li>\n<li><em>Will go to Hell:</em> Probably not</li>\n</ul>"
       )
     end
   end

spec/swagger_v2/namespaced_api_spec.rb

@@ -21,6 +21,26 @@ def app
     end
   end
 
+  context 'with camel case namespace' do
+    def app
+      Class.new(Grape::API) do
+        namespace :camelCases do
+          get '/', desc: 'Look! An endpoint.'
+        end
+        add_swagger_documentation format: :json
+      end
+    end
+
+    subject do
+      get '/swagger_doc'
+      JSON.parse(last_response.body)['paths']['/camelCases']['get']
+    end
+
+    it 'shows the namespace description in the json spec' do
+      expect(subject['description']).to eql('Look! An endpoint.')
+    end
+  end
+
   context 'mounted' do
     def app
       namespaced_api = Class.new(Grape::API) do