Reap invalid session

[tientt-holistics]

Context

• I am using Capybara + Rails + RSpec for end to end testing
• Some of my tests could cause the browser to crash on CI
  • Because of limited resources, I am unable to increase the memory size on the CI environment

Problem

• If test crashes the browser, all subsequent retry or run other tests will fail.
• Is there a safe way to reopen the browse in my case?

Workaround

• I am implementing the below monkey-patch on Capybara#reset!.
• It will remove any invalid session. During the next test run, calling Capybara.current_session will run a new browser.
• Are there any problems to this?

module Capybara
    class << self
        # MONKEY PATCH this method to reap invalid session in case of browser crashed
        # This allows subsequent test run/retry success instead of throw out invalid session id
        def reset_sessions!
          # reset in reverse so sessions that started servers are reset last
          invalid_keys = []
          session_pool.reverse_each do |key, session|
            session.reset!
          rescue => e
            puts "Encouter error while reseting session with key #{key} #{e}"
            invalid_keys << key
          end
          invalid_keys.each { |k| session_pool.delete(k) }
        end
      end
end