Adapt spec to new DSL, nothing of implementation needed to be changed.

spec/grape/api_spec.rb

@@ -923,31 +923,48 @@ def three
         { :description => "Reverses a string.", :params => { "s" => { :desc => "string to reverse", :type => "string" } } }
       ]
     end
-    it "should merge the options of the namespace with the options of the method" do
-      subject.desc "namespace", :params => { :ns_param => "ns param" }
+    it "should merge the parameters of the namespace with the parameters of the method" do
+      subject.desc "namespace"
+      subject.params do
+        requires :ns_param, :desc => "namespace parameter"
+      end
       subject.namespace "ns" do
-        desc "method", :params => { :method_param => "method param" }
+        desc "method"
+        params do
+          optional :method_param, :desc => "method parameter"
+        end
         get "method" do ; end
       end
       subject.routes.map { |route|
         { :description => route.route_description, :params => route.route_params }
       }.should eq [
-        { :description => "method", :params => { :ns_param => "ns param", :method_param => "method param" } }
+        { :description => "method", :params => { :ns_param => { :required => true, :desc => "namespace parameter" }, :method_param => { :required => false, :desc => "method parameter" } } }
       ]
     end
-    it "should merge the options of nested namespaces" do
-      subject.desc "ns1", :params => { :ns_param => "ns param 1", :ns1_param => "ns1 param" }
+    it "should merge the parameters of nested namespaces" do
+      subject.desc "ns1"
+      subject.params do
+        optional :ns_param, :desc => "ns param 1"
+        requires :ns1_param, :desc => "ns1 param"
+      end
       subject.namespace "ns1" do
-        desc "ns2", :params => { :ns_param => "ns param 2", :ns2_param => "ns2 param" }
+        desc "ns2"
+        params do
+          requires :ns_param, :desc => "ns param 2"
+          requires :ns2_param, :desc => "ns2 param"
+        end
         namespace "ns2" do
-          desc "method", :params => { :method_param => "method param" }
+          desc "method"
+          params do
+            optional :method_param, :desc => "method param"
+          end
           get "method" do ; end
         end
       end
       subject.routes.map { |route|
         { :description => route.route_description, :params => route.route_params }
       }.should eq [
-        { :description => "method", :params => { :ns_param => "ns param 2", :ns1_param => "ns1 param", :ns2_param => "ns2 param", :method_param => "method param" } }
+        { :description => "method", :params => { :ns_param => { :required => true, :desc => "ns param 2" }, :ns1_param => { :required => true, :desc => "ns1 param" }, :ns2_param => { :required => true, :desc => "ns2 param" }, :method_param => { :required => false, :desc => "method param" } } }
       ]
     end
     it "should not symbolize params" do