ruby-on-rails - How to say “any_instance” “should_receive”在RSpec中任何次数

我在rails中有一个导入 Controller ，该 Controller 将具有多个记录的多个csv文件导入到数据库中。我想在RSpec中测试是否通过使用RSpec实际保存了记录:

<Model>.any_instance.should_receive(:save).at_least(:once)

但是我得到错误说:

The message 'save' was received by <model instance> but has already been received by <another model instance>

人为的 Controller 示例:

rows = CSV.parse(uploaded_file.tempfile, col_sep: "|")

  ActiveRecord::Base.transaction do
    rows.each do |row|
    mutation = Mutation.new
    row.each_with_index do |value, index|
      Mutation.send("#{attribute_order[index]}=", value)
    end
  mutation.save
end

是否可以使用RSpec对此进行测试，或者有任何解决方法？

最佳答案

有一个新的语法:

expect_any_instance_of(Model).to receive(:save).at_least(:once)