How do I write an RSpec test for a Ruby method that contains “gets.chomp”? [duplicate]

Answer 1

You can stub out standard input stream like this:

require 'stringio'

def capture_name
  $stdin.gets.chomp
end

describe 'capture_name' do
  before do
    $stdin = StringIO.new("James T. Kirk\n")
  end

  after do
    $stdin = STDIN
  end

  it "should be 'James T. Kirk'" do
    expect(capture_name).to be == 'James T. Kirk'
  end
end