Use alias_method for group

Author: dabrorius

lib/grape/dsl/parameters.rb

@@ -72,9 +72,7 @@ def all_or_none_of(*attrs)
         validates(attrs, all_or_none_of: true)
       end
 
-      def group(*attrs, &block)
-        requires(*attrs, &block)
-      end
+      alias_method :group, :requires
 
       def params(params)
         params = @parent.params(params) if @parent

spec/grape/dsl/parameters_spec.rb

@@ -107,8 +107,10 @@ def validates_reader
         end
       end
 
-      xdescribe '#group' do
-        it 'does some thing'
+      describe '#group' do
+        it 'is alias to #requires' do
+          expect(subject.method(:group)).to eq subject.method(:requires)
+        end
       end
 
       xdescribe '#params' do