Add order to Boards

spec/models/post_status_spec.rb

@@ -61,4 +61,13 @@ RSpec.describe PostStatus, type: :model do
     expect(roadmap.first).to eq(post_status3)
     expect(roadmap.second).to eq(post_status2)
   end
+
+  it 'automatically sets order to last order if not specified' do
+    order = 10
+    post_status1 = FactoryBot.create(:post_status, order: order)
+    post_status2 = PostStatus.new
+    
+    expect(post_status1.order).to eq(order)
+    expect(post_status2.order).to eq(order + 1)
+  end
 end