Add tracks attr_reader to Configuration

Co-authored-by: Santiago Bartesaghi <santib@hey.com>

lib/rack/attack/configuration.rb

@@ -19,7 +19,7 @@ class Configuration
         end
       end
 
-      attr_reader :safelists, :blocklists, :throttles, :anonymous_blocklists, :anonymous_safelists
+      attr_reader :safelists, :blocklists, :throttles, :tracks, :anonymous_blocklists, :anonymous_safelists
       attr_accessor :blocklisted_responder, :throttled_responder, :throttled_response_retry_after_header
 
       attr_reader :blocklisted_response, :throttled_response # Keeping these for backwards compatibility

spec/configuration_spec.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require_relative "spec_helper"
+
+describe Rack::Attack::Configuration do
+  let(:config) { Rack::Attack::Configuration.new }
+
+  describe 'attributes' do
+    it 'exposes the safelists attribute' do
+      expect(config.safelists).to eq({})
+    end
+
+    it 'exposes the blocklists attribute' do
+      expect(config.blocklists).to eq({})
+    end
+
+    it 'exposes the throttles attribute' do
+      expect(config.throttles).to eq({})
+    end
+
+    it 'exposes the tracks attribute' do
+      expect(config.tracks).to eq({})
+    end
+
+    it 'exposes the anonymous_blocklists attribute' do
+      expect(config.anonymous_blocklists).to eq([])
+    end
+
+    it 'exposes the anonymous_safelists attribute' do
+      expect(config.anonymous_safelists).to eq([])
+    end
+  end
+end