add API version

spec/api/users_spec.rb

@@ -5,34 +5,33 @@ describe Gitlab::API do
 
   describe "GET /users" do
     it "should return authentication error" do
-      get "/api/users"
+      get "#{api_prefix}/users"
       response.status.should == 401
     end
 
     describe "authenticated GET /users" do
       it "should return an array of users" do
-        get "/api/users?private_token=#{user.private_token}"
+        get "#{api_prefix}/users?private_token=#{user.private_token}"
         response.status.should == 200
-        json = JSON.parse(response.body)
-        json.should be_an Array
-        json.first['email'].should == user.email
+        json_response.should be_an Array
+        json_response.first['email'].should == user.email
       end
     end
   end
 
   describe "GET /users/:id" do
     it "should return a user by id" do
-      get "/api/users/#{user.id}?private_token=#{user.private_token}"
+      get "#{api_prefix}/users/#{user.id}?private_token=#{user.private_token}"
       response.status.should == 200
-      JSON.parse(response.body)['email'].should == user.email
+      json_response['email'].should == user.email
     end
   end
 
   describe "GET /user" do
     it "should return current user" do
-      get "/api/user?private_token=#{user.private_token}"
+      get "#{api_prefix}/user?private_token=#{user.private_token}"
       response.status.should == 200
-      JSON.parse(response.body)['email'].should == user.email
+      json_response['email'].should == user.email
     end
   end
 end