How to write down the rspec to test rescue block.?

Question

I have method like this

def className  
  def method_name
    some code  
  rescue  
    some code and error message  
  end  
end

So, How

Answer 1

you can stub with return error

for example you have class with method like this :

class Email
  def self.send_email
    # send email
  rescue
    'Error sent email'
  end
end

so rspec for raising error is

context 'when error occures' do
  it 'should return error message' do
    allow(Email).to receive(:send_email) { err }
    expect(Email.send_email).to eq 'Error sent email brand'
  end
end