怎么说“any_instance"?“应该接收"RSpec 中的任意次数 [英] How to say "any_instance" "should_receive" any number of times in RSpec

问题描述

我在 Rails 中有一个导入控制器，可以将多个包含多条记录的 csv 文件导入我的数据库.如果记录实际上是使用 RSpec 保存的，我想在 RSpec 中进行测试:

I've got an import controller in rails that imports several csv files with multiple records into my database. I would like to test in RSpec if the records are actually saved by using RSpec:

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

但是我收到错误消息:

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

一个人为的控制器示例:

A contrived example of the controller:

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 对此进行测试或有任何解决方法?

Is it possible to test this using RSpec or is there any workaround?

推荐答案

有一个新的语法:

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

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