allow protected keys to be set/unset + config_db tests

spec/integration/config_spec.rb

@@ -0,0 +1,45 @@
+require_relative '../spec_helper'
+
+describe 'admin/configs', type: :feature do
+  let(:name) { Faker::Lorem.words(rand(2..4)).join(' ') }
+
+  describe type: :feature, js: true do
+    let(:admin) { create :admin }
+    before { login admin }
+
+    it 'has initial value' do
+      FoodsoftConfig[:name] = name
+      visit admin_config_path
+      within('form.config') do
+        expect(find_field('config_name').value).to eq name
+      end
+    end
+
+    it 'can modify a value' do
+      visit admin_config_path
+      fill_in 'config_name', with: name
+      within('form.config') do
+        find('input[type="submit"]').click
+        expect(find_field('config_name').value).to eq name
+      end
+      expect(FoodsoftConfig[:name]).to eq name
+    end
+
+    it 'keeps config the same without changes' do
+      orig_values = get_full_config
+      visit admin_config_path
+      within('form.config') do
+        find('input[type="submit"]').click
+        expect(find_field('config_name').value).to eq FoodsoftConfig[:name]
+      end
+      expect(get_full_config).to eq orig_values
+    end
+
+    def get_full_config
+      cfg = FoodsoftConfig.to_hash.deep_dup
+      cfg.each {|k,v| v.reject! {|k,v| v.blank?} if v.is_a? Hash}
+      cfg
+    end
+
+  end
+end