rakefile.rb

require 'rake'
require 'json'
require 'cucumber/rake/task'

task :ios_browserstack, [:device] do |_task, args|
  device = args.device
  ENV['DEVICE_NAME'] = device
  ENV['SERVER'] = 'BROWSERSTACK'

  puts "<< Device #{device} >>"
  mkdir_p(["./tmp", "./reports"], verbose: false)

  system "cucumber features/scenarios/*.feature" +
             " --exclude features/pages/android" +
             " --exclude features/step_definitions/android" +
             " --format html" +
             " --out reports/output.html" +
             " --format pretty" +
             " --guess" +
             " PLATFORM=IOS" +
             " SERVER=BROWSERSTACK" +
             " DEVICE_NAME=#{device}"
end

#to run on particular Android device
task :android_browserstack, [:device] do |_task, args|
  device = args.device
  ENV['DEVICE_NAME'] = device
  ENV['SERVER'] = 'BROWSERSTACK'

  puts "<< Device #{device} >>"
  mkdir_p(["./tmp", "./reports"], verbose: false)

  system "cucumber features/scenarios/*.feature" +
             " --exclude features/pages/ios" +
             " --exclude features/step_definitions/ios" +
             " --format html" +
             " --out reports/output.html" +
             " --format pretty" +
             " --guess" +
             " PLATFORM=ANDROID" +
             " SERVER=BROWSERSTACK" +
             " DEVICE_NAME=#{device}"
end

task :clean do
  rm_rf "tmp"
  rm_rf "screenshot.png"
  rm_rf "reports"
end