Add test for file validation

+some cleanup of unnecessary spaces

Author: tim-vandecasteele

spec/grape/validations/coerce_spec.rb

@@ -8,7 +8,7 @@ class User
         attribute :id, Integer
         attribute :name, String
       end
-    
+
       class API < Grape::API
         default_format :json
 
@@ -43,39 +43,47 @@ class API < Grape::API
             :bool   => params[:bool] ? (params[:bool][0] == true) && (params[:bool][1] == false) : nil
           }
         end
+        params do
+          requires :uploaded_file, :type => Rack::Multipart::UploadedFile
+        end
+        post '/file' do
+          {
+            :dpx_file => params[:uploaded_file]
+          }
+        end
       end
     end
   end
-  
+
   def app
     ValidationsSpec::CoerceValidatorSpec::API
   end
-    
+
   it "should return an error on malformed input" do
     get '/single', :int => "43a"
     last_response.status.should == 400
-    
+
     get '/single', :int => "43"
     last_response.status.should == 200
   end
-  
+
   it "should return an error on malformed input (array)" do
     get '/arr', :ids => ["1", "2", "az"]
     last_response.status.should == 400
-    
+
     get '/arr', :ids => ["1", "2", "890"]
     last_response.status.should == 200
   end
-  
+
   it "should return an error on malformed input (complex object)" do
     # this request does raise an error inside Virtus
     get '/user', :user => "32"
     last_response.status.should == 400
-    
+
     get '/user', :user => { :id => 32, :name => "Bob"}
     last_response.status.should == 200
   end
-  
+
   it 'should coerce inputs' do
     get('/coerce', :int => "43", :int2 => "42")
     last_response.status.should == 200
@@ -90,9 +98,14 @@ def app
     ret["arr"].should == "Fixnum"
     ret["bool"].should == true
   end
-  
+
   it 'should not return an error when an optional parameter is nil' do
     get('/coerce', :int => "40")
     last_response.status.should == 200
   end
+
+  it 'should coerce a file' do
+    post('/file', :uploaded_file => Rack::Test::UploadedFile.new(__FILE__))
+    last_response.status.should == 201
+  end
 end