Add specs for Routing#namespace

Author: dabrorius

lib/grape/dsl/routing.rb

@@ -134,7 +134,7 @@ def route(methods, paths = ['/'], route_options = {}, &block)
           end
         end
 
-        def namespace(space = nil, options = {},  &block)
+        def namespace(space = nil, options = {}, &block)
           if space || block_given?
             within_namespace do
               previous_namespace_description = @namespace_description

spec/grape/dsl/routing_spec.rb

@@ -152,8 +152,24 @@ class Dummy
         end
       end
 
-      xdescribe '.namespace' do
-        it 'does some thing'
+      describe '.namespace' do
+        let(:new_namespace) { Object.new }
+
+        it 'creates a new namespace with given name and options' do
+          expect(subject).to receive(:within_namespace).and_yield
+          expect(subject).to receive(:nest).and_yield
+          expect(Namespace).to receive(:new).with(:foo, foo: 'bar').and_return(new_namespace)
+          expect(subject).to receive(:namespace_stackable).with(:namespace, new_namespace)
+
+          subject.namespace :foo, foo: 'bar', &proc{}
+        end
+
+        it 'calls #joined_space_path on Namespace' do
+          result_of_namspace_stackable = Object.new
+          allow(subject).to receive(:namespace_stackable).and_return(result_of_namspace_stackable)
+          expect(Namespace).to receive(:joined_space_path).with(result_of_namspace_stackable)
+          subject.namespace
+        end
       end
 
       describe '.group' do