example_spec_rerun.rb

require 'rspec'

spec_file = 'spec/sample_spec.rb'

File.open(spec_file, 'w') { |file| file.write 'describe { specify { expect(true).to eq false } }' }

1.upto(5) do |i|
  puts "Running spec from within ruby runtime"
  ::RSpec::Core::Runner.run([spec_file], STDERR, STDOUT)

  #rewriting the spec file
  File.open(spec_file, 'w') { |file| file.write "describe { specify { expect(#{i}).to eq false } }" }
  
end