Allow rbx failures and add array usage specs

As per feedback in PR

I had to move things around a little bit in the example representers because using the request url as the self rel only works if the resource will always be presented by itself

It's still a useful example to have to demonstrate how using `env` works though, so I made sure to move it into a resource that fits that criteria.

.travis.yml

@@ -11,3 +11,7 @@ rvm:
   - 1.9.3
   - jruby-19mode
   - rbx-2.2.10
+
+matrix:
+  allow_failures:
+    - rvm: rbx-2.2.10

spec/decorator_spec.rb

@@ -15,15 +15,30 @@ def app
   end
 
   context 'decorator' do
-    before do
-      subject.get('/user/:id') do
-        present User.new(name: 'Lonestar', id: params[:id]), with: UserRepresenter
+    context 'with a single resource' do
+      before do
+        subject.get('/user/:id') do
+          present User.new(name: 'Lonestar', id: params[:id]), with: UserRepresenter
+        end
+      end
+
+      it 'returns a single hypermedia representation' do
+        get '/user/666'
+        expect(last_response.body).to eq '{"name":"Lonestar","id":"666","links":[{"rel":"self","href":"/user/666"}]}'
       end
     end
 
-    it 'returns a hypermedia representation' do
-      get '/user/666'
-      expect(last_response.body).to eq '{"name":"Lonestar","id":"666","links":[{"rel":"self","href":"/user/666"}]}'
+    context 'with an array of resources' do
+      before do
+        subject.get('/users') do
+          present [User.new(name: 'Texassee', id: 1), User.new(name: 'Lonestar', id: 2)], with: UserRepresenter
+        end
+      end
+
+      it 'returns an array of hypermedia representations' do
+        get 'users'
+        expect(last_response.body).to eq '[{"name":"Texassee","id":1,"links":[{"rel":"self","href":"/user/1"}]},{"name":"Lonestar","id":2,"links":[{"rel":"self","href":"/user/2"}]}]'
+      end
     end
   end
 end

spec/nested_representer_spec.rb

@@ -26,7 +26,8 @@ def app
 
     it 'returns a hypermedia representation' do
       get '/order/666'
-      expect(last_response.body).to eq '{"id":"666","client_id":42,"articles":[{"title":"One","id":1,"links":[{"rel":"self","href":"/article/1"}]},{"title":"Two","id":2,"links":[{"rel":"self","href":"/article/2"}]}],"links":[{"rel":"self","href":"/order/666"},{"rel":"items","href":"/order/666/items"}]}'
+      expect(last_response.body).to eq '{"id":"666","client_id":42,"articles":[{"title":"One","id":1,"links":[{"rel":"self","href":"/article/1"}]},{"title":"Two","id":2,"links":[{"rel":"self","href":"/article/2"}]}],' \
+        '"links":[{"rel":"self","href":"http://example.org/order/666"},{"rel":"items","href":"/order/666/items"}]}'
     end
   end
 end

spec/present_with_spec.rb

@@ -15,15 +15,30 @@ def app
   end
 
   context 'using present' do
-    before do
-      subject.get('/product/:id') do
-        present Product.new(title: 'Lonestar', id: params[:id]), with: ProductRepresenter
+    context 'with a single resource' do
+      before do
+        subject.get('/product/:id') do
+          present Product.new(title: 'Lonestar', id: params[:id]), with: ProductRepresenter
+        end
+      end
+
+      it 'returns a hypermedia representation' do
+        get '/product/666'
+        expect(last_response.body).to eq '{"title":"Lonestar","id":"666","links":[{"rel":"self","href":"/product/666"}]}'
       end
     end
 
-    it 'returns a hypermedia representation' do
-      get '/product/666'
-      expect(last_response.body).to eq '{"title":"Lonestar","id":"666","links":[{"rel":"self","href":"http://example.org/product/666"}]}'
+    context 'with an array of resources' do
+      before do
+        subject.get('/products') do
+          present [Product.new(title: 'Texassee', id: 1), Product.new(title: 'Lonestar', id: 2)], with: ProductRepresenter
+        end
+      end
+
+      it 'returns an array of hypermedia representations' do
+        get 'products'
+        expect(last_response.body).to eq '[{"title":"Texassee","id":1,"links":[{"rel":"self","href":"/product/1"}]},{"title":"Lonestar","id":2,"links":[{"rel":"self","href":"/product/2"}]}]'
+      end
     end
   end
 end

spec/support/order_representer.rb

@@ -9,8 +9,9 @@ module OrderRepresenter
 
   collection :articles, class: Article
 
-  link :self do
-    "/order/#{id}"
+  link :self do |opts|
+    request = Grape::Request.new(opts[:env])
+    "#{request.url}"
   end
 
   link :items do

spec/support/product_representer.rb

@@ -8,8 +8,7 @@ module ProductRepresenter
   property :title
   property :id
 
-  link :self do |opts|
-    request = Grape::Request.new(opts[:env])
-    "#{request.url}"
+  link :self do
+    "/product/#{id}"
   end
 end