feat: テスト自動化（#104） (#220)

#104

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: #220

backend/spec/support/test_records.rb

@@ -0,0 +1,8 @@
+module TestRecords
+  def create_member_user!
+    User.create!(name: 'spec user',
+                 inheritance_code: SecureRandom.hex(16),
+                 role: 'member',
+                 banned: false)
+  end
+end