RSpec - Dealing with a retry inside a rescue block

Question

I'm currently running into a loop where retry gets executed within my test. How can I stub retry and still test the code above it?

I have a snippet to catch HostKeyMismatch exceptions:

rescue Net::SSH::HostKeyMismatch => e
  e.remember_host!
  retry
end

My spec:

describe "rescues Net::SSH::HostKeyMismatch" do
  it "resyncs the ssh keys" do
    Net::SSH::HostKeyMismatch.any_instance.should_receive(:remember_host!).and_return(true)
    ssh_class.new.run_ssh_command { raise Net::SSH::HostKeyMismatch }
  end
end

Error I'm getting:

   The message 'remember_host!' was received by #<Net::SSH::HostKeyMismatch: Net::SSH::HostKeyMismatch> but has already been received by Net::SSH::HostKeyMismatch

Update:

I was able to resolve the issue by adding a counter to the suggested answer below:

describe "rescues Net::SSH::HostKeyMismatch" do
  it "resyncs the ssh keys" do
    exception = Net::SSH::HostKeyMismatch.new
    exception.should_receive(:remember_host!).and_return(true)
    count = 0
    ssh_class.new.run_ssh_command do
      count += 1
      raise exception unless count > 1
    end
  end
end

Answer 1

Retry is called on the object on which your run_ssh_command was called.

So

describe "rescues Net::SSH::HostKeyMismatch" do
  it "resyncs the ssh keys" do
    ssh_instance = ssh_class.new

    Net::SSH::HostKeyMismatch.any_instance.should_receive(:remember_host!).and_return(true)
    ssh_instance.should_receive(:retry)

    ssh_instance.run_ssh_command { raise  Net::SSH::HostKeyMismatch}
  end
end