How to say “any_instance” “should_receive” any number of times in RSpec

Question

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 save

Answer 1

This is Rob's example using RSpec 3.3, which no longer supports Foo.any_instance. I found this useful when in a loop creating objects

# code (simplified version)
array_of_hashes.each { |hash| Model.new(hash).write! }

# spec
it "calls write! for each instance of Model" do 
  call_count = 0
  allow_any_instance_of(Model).to receive(:write!) { call_count += 1 }

  response.process # run the test
  expect(call_count).to eq(2)
end