lotteries_pathへのリスクエストspecを追加

spec/requests/lotteries_spec.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Lottery, type: :request do
+  describe 'GET /lotteries' do
+    subject { get lotteries_path }
+
+    let(:user) { create(:user) }
+    let!(:lottery) { create(:lottery, name: 'テストの抽選会', user:) }
+
+    it 'return 200 status' do
+      sign_in user
+      subject
+
+      expect(response).to have_http_status(:ok)
+    end
+  end
+end