refactored conferences controller, dividing responsabilities using an service and an query

spec/services/queries/conferences_spec.rb

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Queries::Conferences, type: :query do
+  describe '::conference_by_filter' do
+    let!(:conference) { create :conference }
+    it 'returns conference by flter' do
+      result = described_class::conference_by_filter({
+        id: conference.id
+      })
+      expect(result).to eq(conference)
+    end
+  end
+
+  describe '.sponsorship_levels' do
+    let!(:conference) { create :full_conference }
+   
+    it 'returns sponsorship_levels' do
+      result = described_class.new(conference: conference).sponsorship_levels
+
+      expect(result.map(&:id).sort).to eq(conference.sponsorship_levels.map(&:id).sort)
+    end
+  end
+
+  describe '.confirmed_tracks' do
+    let!(:conference) { create :full_conference }
+
+    it 'returns confirmed_tracks' do
+      result = described_class.new(conference: conference).confirmed_tracks
+
+      expect(result.map(&:id).sort).to eq(conference.confirmed_tracks.map(&:id).sort)
+    end
+  end
+end