Serialize parameters with Arrays and Hashes properly.

features/oauth2_mac_client.feature

@@ -31,6 +31,38 @@ Feature: Use OAuth2 MAC client as a test client
               response.finish
             end
 
+            run app
+          end
+
+           map "/multiple" do
+             app = lambda do |env|
+               if env["HTTP_AUTHORIZATION"].blank?
+               return [401, {"Content-Type" => "text/plain"}, [""]]
+             end
+
+             request = Rack::Request.new(env)
+             response = Rack::Response.new
+             response["Content-Type"] = "text/plain"
+             response.write("hello #{request.params["targets"].join(", ")}")
+             response.finish
+            end
+
+            run app
+          end
+
+           map "/multiple_nested" do
+             app = lambda do |env|
+               if env["HTTP_AUTHORIZATION"].blank?
+               return [401, {"Content-Type" => "text/plain"}, [""]]
+             end
+
+             request = Rack::Request.new(env)
+             response = Rack::Response.new
+             response["Content-Type"] = "text/plain"
+             response.write("hello #{request.params["targets"].sort.map {|company, products| company.to_s + ' with ' + products.join(' and ')}.join(", ")}")
+             response.finish
+            end
+
             run app
           end
         end
@@ -50,6 +82,35 @@ Feature: Use OAuth2 MAC client as a test client
             response_body.should eq('hello rspec_api_documentation')
           end
         end
+
+        get "/multiple" do
+          parameter :targets, "The people you want to greet"
+
+          let(:targets) { ["eric", "sam"] }
+
+          example "Greeting your favorite people" do
+            do_request
+
+            response_headers["Content-Type"].should eq("text/plain")
+            status.should eq(200)
+            response_body.should eq("hello eric, sam")
+          end
+        end
+
+        get "/multiple_nested" do
+          parameter :targets, "The companies you want to greet"
+
+          let(:targets) { { "apple" => ['mac', 'ios'], "google" => ['search', 'mail']} }
+
+          example "Greeting your favorite companies" do
+            do_request
+
+            response_headers["Content-Type"].should eq("text/plain")
+            status.should eq(200)
+            response_body.should eq("hello apple with mac and ios, google with search and mail")
+          end
+        end
+
       end
       """
     When  I run `rspec app_spec.rb --format RspecApiDocumentation::ApiFormatter`
@@ -61,6 +122,10 @@ Feature: Use OAuth2 MAC client as a test client
         Greetings
         GET /
           * Greeting your favorite gem
+        GET /multiple
+          * Greeting your favorite people
+        GET /multiple_nested
+          * Greeting your favorite companies
       """
-    And   the output should contain "1 example, 0 failures"
+    And   the output should contain "3 examples, 0 failures"
     And   the exit status should be 0

gemfiles/minimum_dependencies

@@ -6,7 +6,7 @@ gem "rspec", "2.6.0"
 gem "activesupport", "3.0.0"
 gem "i18n", "0.4.0"
 gem "mustache", "0.99.4"
-gem "webmock", "1.8.0"
+gem "webmock", "1.8.8"
 gem "json", "1.4.6"
 gem "rack-test", "0.5.5"
 gem "rack-oauth2", "0.14.4"

lib/rspec_api_documentation/dsl/endpoint.rb

@@ -1,8 +1,11 @@
 require 'rspec/core/formatters/base_formatter'
+require 'rack/utils'
+require 'rack/test/utils'
 
 module RspecApiDocumentation::DSL
   module Endpoint
     extend ActiveSupport::Concern
+    include Rack::Test::Utils
 
     delegate :response_headers, :status, :response_status, :response_body, :to => :client
 
@@ -45,11 +48,7 @@ def do_request(extra_params = {})
     end
 
     def query_string
-      query = params.to_a.map do |param|
-        param.map! { |a| CGI.escape(a.to_s) }
-        param.join("=")
-      end
-      query.join("&")
+      build_nested_query(params || {})
     end
 
     def params

lib/rspec_api_documentation/oauth2_mac_client.rb

@@ -48,9 +48,15 @@ def do_request(method, path, params, request_headers)
 
     class ProxyApp < Struct.new(:client, :app)
       def call(env)
+        env["QUERY_STRING"] = query_string_hack(env)
         client.last_request = Struct.new(:env, :content_type).new(env, env["CONTENT_TYPE"])
         app.call(env.merge("SCRIPT_NAME" => ""))
       end
+
+    private
+      def query_string_hack(env)
+        env["QUERY_STRING"].gsub('%5B', '[').gsub('%5D', ']').gsub(/\[\d+/) { |s| "#{$1}[" }
+      end
     end
 
     def access_token

spec/dsl_spec.rb

@@ -246,7 +246,6 @@
       trigger_callback do
         uri = URI.parse(callback_url)
         Net::HTTP.start(uri.host, uri.port) do |http|
-          # debugger
           http.request Net::HTTP::Post.new(uri.path)
         end
       end
@@ -380,6 +379,41 @@
     end
   end
 
+  context "proper query_string serialization" do
+    get "/orders" do
+      context "with an array parameter" do
+        parameter :id_eq, "List of IDs"
+
+        let(:id_eq) { [1, 2] }
+
+        example "parsed properly" do
+          client.should_receive(:get).with do |path, data, headers|
+            Rack::Utils.parse_nested_query(path.gsub('/orders?', '')).should eq({"id_eq"=>['1', '2']})
+          end
+          do_request
+        end
+      end
+
+      context "with a deep nested parameter, including Hashes and Arrays" do
+        parameter :within_id, "Fancy search condition"
+
+        let(:within_id) { {"first" => 1, "last" => 10, "exclude" => [3,5,7]} }
+        scope_parameters :search, :all
+
+        example "parsed properly" do
+          client.should_receive(:get).with do |path, data, headers|
+            Rack::Utils.parse_nested_query(path.gsub('/orders?', '')).should eq({
+              "search" => { "within_id" => {"first" => '1', "last" => '10', "exclude" => ['3','5','7']}}
+            })
+          end
+          do_request
+        end
+      end
+    end
+  end
+
+
+
   context "auto request" do
     post "/orders" do
       parameter :order_type, "Type of order"