refactored tests

app/controllers/nilms_controller.rb

@@ -46,11 +46,12 @@ class NilmsController < ApplicationController
     @service = StubService.new
     # redundant since the user must be an owner...
     @role = current_user.get_nilm_permission(@nilm)
-    if @nilm.update(nilm_params) and @nilm.db.update(db_params)
+    if @nilm.update(nilm_params) && @db.update(db_params)
       @service.add_notice('Installation Updated')
       render :show, status: :ok
     else
-      @service.errors = @nilm.errors.full_messages
+      @service.errors = @nilm.errors.full_messages +
+                        @db.errors.full_messages
       render :show, status: :unprocessable_entity
     end
   end

app/views/nilms/show.json.jbuilder

@@ -2,11 +2,15 @@
 json.data do
   json.extract! @nilm, *Nilm.json_keys
   json.role @role
-  json.max_points_per_plot @nilm.db.max_points_per_plot
-  json.root_folder do
-    json.partial! 'db_folders/db_folder',
-                  db_folder: @nilm.db.root_folder,
-                  nilm: @nilm
+  if @nilm.db != nil
+    json.max_points_per_plot @nilm.db.max_points_per_plot
+    json.root_folder do
+      if @nilm.db.root_folder != nil
+        json.partial! 'db_folders/db_folder',
+                      db_folder: @nilm.db.root_folder,
+                      nilm: @nilm
+      end
+    end
   end
   json.jouleModules(@nilm.joule_modules) do |m|
     json.extract! m, *JouleModule.json_keys

spec/controllers/nilms_controller_spec.rb

@@ -67,22 +67,22 @@ RSpec.describe NilmsController, type: :request do
       it 'returns 422 on invalid db parameters' do
         # max points must be a positive number
         put "/nilms/#{john_nilm.id}.json",
-            params: {db: {max_points_per_plot: 'invalid'}},
+            params: {max_points_per_plot: 'invalid'},
             headers: john.create_new_auth_token
         expect(response.status).to eq(422)
         expect(response).to have_error_message(/not a number/)
       end
 
       it 'only allows configurable db parameters to be changed' do
-        # should ignore size and accept max_points
-        url = john_nilm.db.url
+        # should ignore url and accept max_points
+        size_db = john_nilm.db.size_db
         num_points = john_nilm.db.max_points_per_plot
         put "/nilms/#{john_nilm.id}.json",
-            params: {db: {max_points_per_plot: num_points+10, url: 'different'}},
+            params: {max_points_per_plot: num_points+10, size: 'different'},
             headers:  john.create_new_auth_token
         expect(response.status).to eq(200)
         expect(response).to have_notice_message()
-        expect(john_nilm.db.reload.url).to eq(url)
+        expect(john_nilm.db.reload.size_db).to eq(size_db)
         expect(john_nilm.db.max_points_per_plot).to eq(num_points+10)
       end
     end
@@ -113,7 +113,7 @@ RSpec.describe NilmsController, type: :request do
   describe 'GET show' do
     context 'with any permissions' do
 
-      it 'returns nilm and nested db as json' do
+      it 'returns nilm and nested root folder as json' do
         # john has some permission on all 3 nilms
         [pete_nilm, lab_nilm, john_nilm].each do |nilm|
           get "/nilms/#{nilm.id}.json",
@@ -122,7 +122,7 @@ RSpec.describe NilmsController, type: :request do
           expect(response.header['Content-Type']).to include('application/json')
           body = JSON.parse(response.body)
           expect(body['data']['name']).to eq(nilm.name)
-          expect(body['data']['db']['url']).to eq(nilm.db.url)
+          expect(body['data']['root_folder']['name']).to_not be_empty
         end
       end
       it 'returns joule modules as json' do