ruby - Instantiating a watir browser on test failure in Cucumber without using the singleton pattern -

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i've been trying create "cucumber seed" project can use bootstrap browser-based acceptance test suite. alister scott has written common antipattern of closing , reopening browser windows (which adds unnecessary delay test suite), can avoided adding following env.rb file:

browser = watir::browser.new  before   @browser = browser end  at_exit   browser.close end

but i'm unsure of how incorporate behavior, while still restarting browser when test fails (this ensures failed test not leak browser state , cause cascade of failures unrelated scenarios).

my current approach wrap watir::browser instantiation in browser singleton class, so:

# support/browser.rb  class browser   class << self     def instance       @browser     end      def start(name: 'chrome')       @name = name       @browser = watir::browser.new(name.to_sym)     end      def stop       @browser.close # if page hangs fail selenium unknown error     rescue selenium::webdriver::error       puts 'failed close old browser (possibly because page hanging), starting new one!'     end      def restart       stop       start(name: @name)     end   end # singleton methods end

and call in env.rb/hooks file so:

browser.start  before   @browser = browser.instance end  after |scenario|   browser.restart if scenario.failed? end  at_exit   browser.stop end

which works, there better way write this? avoids having use singleton, perhaps?

i don't think approach useful if application not stable. suggest creating new instance of browser , closing @ end of scenario.


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