How to use null_device method of Platform Package

Best Selenium code snippet using Platform.null_device

platform.rb

Source: platform.rb Github

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...79 def cygwin?80 RUBY_PLATFORM =~ /​cygwin/​81 !Regexp.last_match.nil?82 end83 def null_device84 @null_device ||= if defined?(File::NULL)85 File::NULL86 else87 Platform.windows? ? 'NUL' : '/​dev/​null'88 end89 end90 def wrap_in_quotes_if_necessary(str)91 windows? && !cygwin? ? %("#{str}") : str92 end93 def cygwin_path(path, opts = {})94 flags = []95 opts.each { |k, v| flags << "--#{k}" if v }96 `cygpath #{flags.join ' '} "#{path}"`.strip97 end98 def make_writable(file)99 File.chmod 0o766, file100 end101 def assert_file(path)102 return if File.file? path103 raise Error::WebDriverError, "not a file: #{path.inspect}"104 end105 def assert_executable(path)106 assert_file(path)107 return if File.executable? path108 raise Error::WebDriverError, "not executable: #{path.inspect}"109 end110 def exit_hook111 pid = Process.pid112 at_exit { yield if Process.pid == pid }113 end114 def find_binary(*binary_names)115 paths = ENV['PATH'].split(File::PATH_SEPARATOR)116 if windows?117 binary_names.map! { |n| "#{n}.exe" }118 binary_names.dup.each { |n| binary_names << n.gsub('exe', 'bat') }119 end120 binary_names.each do |binary_name|121 paths.each do |path|122 full_path = File.join(path, binary_name)123 full_path.tr!('\\', '/​') if windows?124 exe = Dir.glob(full_path).find { |f| File.executable?(f) }125 return exe if exe126 end127 end128 nil129 end130 def find_in_program_files(*binary_names)131 paths = [132 ENV['PROGRAMFILES'] || '\\Program Files',133 ENV['ProgramFiles(x86)'] || '\\Program Files (x86)',134 ENV['ProgramW6432'] || '\\Program Files'135 ]136 paths.each do |root|137 binary_names.each do |name|138 exe = File.join(root, name)139 return exe if File.executable?(exe)140 end141 end142 nil143 end144 def localhost145 info = Socket.getaddrinfo 'localhost', 80, Socket::AF_INET, Socket::SOCK_STREAM146 return info[0][3] unless info.empty?147 raise Error::WebDriverError, "unable to translate 'localhost' for TCP + IPv4"148 end149 def ip150 orig = Socket.do_not_reverse_lookup151 Socket.do_not_reverse_lookup = true152 begin153 UDPSocket.open do |s|154 s.connect '8.8.8.8', 53155 return s.addr.last156 end157 ensure158 Socket.do_not_reverse_lookup = orig159 end160 rescue Errno::ENETUNREACH, Errno::EHOSTUNREACH161 # no external ip162 end163 def interfaces164 interfaces = Socket.getaddrinfo('localhost', 8080).map { |e| e[3] }165 interfaces += ['0.0.0.0', Platform.ip]166 interfaces.compact.uniq167 end168 end # Platform169 end # WebDriver170end # Selenium171if $PROGRAM_NAME == __FILE__172 p engine: Selenium::WebDriver::Platform.engine,173 os: Selenium::WebDriver::Platform.os,174 ruby_version: Selenium::WebDriver::Platform.ruby_version,175 jruby?: Selenium::WebDriver::Platform.jruby?,176 windows?: Selenium::WebDriver::Platform.windows?,177 home: Selenium::WebDriver::Platform.home,178 bitsize: Selenium::WebDriver::Platform.bitsize,179 localhost: Selenium::WebDriver::Platform.localhost,180 ip: Selenium::WebDriver::Platform.ip,181 interfaces: Selenium::WebDriver::Platform.interfaces,182 null_device: Selenium::WebDriver::Platform.null_device183end...

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util.rb

Source: util.rb Github

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...63 return system(*(cmds << opt))64 rescue TypeError65 require 'thread'66 @silent_mutex ||= Mutex.new67 null_device = NULL_DEVICE68 @silent_mutex.synchronize do69 begin70 stdout = STDOUT.dup71 stderr = STDERR.dup72 STDOUT.reopen null_device, 'w'73 STDERR.reopen null_device, 'w'74 return system(*command)75 ensure76 STDOUT.reopen stdout77 STDERR.reopen stderr78 stdout.close79 stderr.close80 end81 end82 end83 ##84 # Enumerates the parents of +directory+.85 def self.traverse_parents directory, &block86 return enum_for __method__, directory unless block_given?87 here = File.expand_path directory...

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null_device

Using AI Code Generation

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1file = File.open(Platform.null_device, "w")2file.write("Hello")3file = File.open(Platform.null_device, "w")4file.write("Hello")5file = File.open(Platform.null_device, "w")6file.write("Hello")7file = File.open(Platform.null_device, "w")8file.write("Hello")9file = File.open(Platform.null_device, "w")10file.write("Hello")11file = File.open(Platform.null_device, "w")12file.write("Hello")13file = File.open(Platform.null_device, "w")14file.write("Hello")15file = File.open(

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null_device

Using AI Code Generation

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1file = File.open(Platform.null_device, "w")2file.write("Hello")3file = File.open(Platform.null_device, "w")4file.write("Hello")5file = File.open(Platform.null_device, "w")6file.write("Hello")7file = File.open(Platform.null_device, "w")8file.write("Hello")9file = File.open(Platform.null_device, "w")10file.write("Hello")11file = File.open(Platform.null_device, "w")12file.write("Hello")13file = File.open(Platform.null_device, "w")14file.write("Hello")15file = File.open(

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A proper way to do it for all js tests is to add following inside spec_helper.rb RSpec.configure block

config.before(:each, js: true) do
  Capybara.page.driver.browser.manage.window.maximize
end

to maximize the window. Change to resize_to(x,y) to set any window size.

EDIT: If you happen to be using Poltergeist the correct way to do it is

config.before(:each, js: true) do
  Capybara.page.driver.browser.resize(x,y)
end
https://stackoverflow.com/questions/18390071/change-default-capybara-browser-window-size

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