Stub methods with newer syntax (stub that raises and then returns)

[Joery Moinsen]

Hello, how can i stub methods with the newer syntax? My current stub looks like

      dbl.stub(:raise_then_return) do
        @counter = @counter.to_i.succ
        raise RuntimeError if @counter < 2
        return "foo"
      end

and i get a deprecation warning

Deprecation Warnings:

Using `stub` from rspec-mocks' old `:should` syntax without explicitly enabling the syntax is deprecated. Use the new `:expect` syntax or explicitly enable `:should` instead.

The doc on Method stubs (https://www.relishapp.com/rspec/rspec-mocks/v/2-3/docs/method-stubs) has no equivalent for Rspec 3.5

What is the preferred way to express my stub? I need a method that raises on first call and then returns something on the second call.

Many thanks for considering my request.

[Myron Marston]

With the newer, non-monkey patching syntax, you would do:

allow(dbl).to receive(:raise_then_return) do

  @counter = @counter.to_i.succ
  raise RuntimeError if @counter < 2

  "foo"
end

​

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[Joery Moinsen]

thank you very much for the quick response.