Expose final_stop_active? for diagnostic sampling

lib/zaptec/state.rb

@@ -24,6 +24,8 @@ def disconnected? = charger_operation_mode == DISCONNECTED
 
     def paused? = charger_operation_mode == CONNECTED_FINISHED && final_stop_active?
 
+    def final_stop_active? = @data.fetch(:FinalStopActive).to_i == 1
+
     def online? = @data.fetch(:IsOnline).to_i.positive?
 
     def session_identifier
@@ -39,8 +41,6 @@ def meter_reading
 
     private
 
-    def final_stop_active? = @data.fetch(:FinalStopActive).to_i == 1
-
     def charger_operation_mode
       Constants.charger_operation_mode_to_name(@data.fetch(:ChargerOperationMode).to_i)
     end

spec/zaptec/state_spec.rb

@@ -0,0 +1,15 @@
+RSpec.describe Zaptec::State do
+  describe "#final_stop_active?" do
+    it "is true when FinalStopActive is 1" do
+      state = Zaptec::State.new(FinalStopActive: "1")
+
+      expect(state).to be_final_stop_active
+    end
+
+    it "is false when FinalStopActive is 0" do
+      state = Zaptec::State.new(FinalStopActive: "0")
+
+      expect(state).not_to be_final_stop_active
+    end
+  end
+end