Use option instead of answer text to find multiple answers

spec/models/poll/question_spec.rb

@@ -86,4 +86,68 @@ RSpec.describe Poll::Question do
       expect(question.options_total_votes).to eq 3
     end
   end
+
+  describe "#find_or_initialize_user_answer" do
+    let(:user) { create(:user) }
+    let(:other_user) { create(:user) }
+
+    context "unique question" do
+      let(:question) { create(:poll_question_unique, :abc) }
+      let(:answer_a) { question.question_options.find_by(title: "Answer A") }
+      let(:answer_b) { question.question_options.find_by(title: "Answer B") }
+
+      it "finds the existing answer for the same user" do
+        existing_answer = create(:poll_answer, question: question, author: user, option: answer_a)
+        create(:poll_answer, question: question, author: other_user, option: answer_b)
+
+        answer = question.find_or_initialize_user_answer(user, answer_b.id)
+
+        expect(answer).to eq existing_answer
+        expect(answer.author).to eq user
+        expect(answer.option).to eq answer_b
+        expect(answer.answer).to eq "Answer B"
+      end
+
+      it "initializes a new answer when only another user has answered" do
+        create(:poll_answer, question: question, author: other_user, option: answer_a)
+
+        answer = question.find_or_initialize_user_answer(user, answer_a.id)
+
+        expect(answer).to be_new_record
+        expect(answer.author).to eq user
+        expect(answer.option).to eq answer_a
+        expect(answer.answer).to eq "Answer A"
+      end
+    end
+
+    context "multiple question" do
+      let(:question) { create(:poll_question_multiple, :abc, max_votes: 3) }
+      let(:answer_a) { question.question_options.find_by(title: "Answer A") }
+      let(:answer_b) { question.question_options.find_by(title: "Answer B") }
+
+      it "finds the existing answer for the same user and option" do
+        existing_answer = create(:poll_answer, question: question, author: user, option: answer_a)
+        create(:poll_answer, question: question, author: other_user, option: answer_a)
+
+        answer = question.find_or_initialize_user_answer(user, answer_a.id)
+
+        expect(answer).to eq existing_answer
+        expect(answer.author).to eq user
+        expect(answer.option).to eq answer_a
+        expect(answer.answer).to eq "Answer A"
+      end
+
+      it "initializes a new answer when selecting a different option" do
+        create(:poll_answer, question: question, author: user, option: answer_a)
+        create(:poll_answer, question: question, author: other_user, option: answer_b)
+
+        answer = question.find_or_initialize_user_answer(user, answer_b.id)
+
+        expect(answer).to be_new_record
+        expect(answer.author).to eq user
+        expect(answer.option).to eq answer_b
+        expect(answer.answer).to eq "Answer B"
+      end
+    end
+  end
 end