Module: ActiveSupport::Testing::Isolation::Subprocess
- Defined in:
- lib/active_support/testing/isolation.rb
Constant Summary collapse
- ORIG_ARGV =
ARGV.dup
Instance Method Summary collapse
-
#run_in_isolation(&blk) ⇒ Object
Crazy H4X to get this working in windows / jruby with no forking.
Instance Method Details
#run_in_isolation(&blk) ⇒ Object
Crazy H4X to get this working in windows / jruby with no forking.
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# File 'lib/active_support/testing/isolation.rb', line 76 def run_in_isolation(&blk) require "tempfile" if ENV["ISOLATION_TEST"] yield File.open(ENV["ISOLATION_OUTPUT"], "w") do |file| file.puts [Marshal.dump(self.dup)].pack("m") end exit! else Tempfile.open("isolation") do |tmpfile| env = { 'ISOLATION_TEST' => self.class.name, 'ISOLATION_OUTPUT' => tmpfile.path } load_paths = $-I.map {|p| "-I\"#{File.(p)}\"" }.join(" ") orig_args = ORIG_ARGV.join(" ") test_opts = "-n#{self.class.name}##{self.name}" command = "#{Gem.ruby} #{load_paths} #{$0} '#{orig_args}' #{test_opts}" # IO.popen lets us pass env in a cross-platform way child = IO.popen(env, command) begin Process.wait(child.pid) rescue Errno::ECHILD # The child process may exit before we wait nil end return tmpfile.read.unpack("m")[0] end end end |