RSpec sequence of returned values AND raised errors from stub

Question

I want to stub first two calls to HTTParty with raised exception and then, the third call, should return value.

   before do
          allow(HTTParty).to receive(:get).exactly(2).times.with(url).and_raise(HTTParty::Error)
          allow(HTTParty).to receive(:get).with(url).and_return('{}')
        end

but one allow override another one. how to set stub to raise errors for first few tries and then let it return a value?

Answer 1

According to info provided in this github issue, you can also do that with the following pure-RSpec approach. It leverages the most general way of defining mock responses using block:

before do
  reponse_values = [:raise, :raise, '{}']
  allow(HTTParty).to receive(:get).exactly(3).times.with(url) do
    v = response_values.shift
    v == :raise ? raise(HTTParty::Error) : v
  end
end