def run_in_isolation(&blk)
require "tempfile"
if ENV["ISOLATION_TEST"]
proxy = ProxyTestResult.new
retval = yield proxy
File.open(ENV["ISOLATION_OUTPUT"], "w") do |file|
file.puts [Marshal.dump([retval, proxy])].pack("m")
end
exit!
else
Tempfile.open("isolation") do |tmpfile|
ENV["ISOLATION_TEST"] = @method_name
ENV["ISOLATION_OUTPUT"] = tmpfile.path
load_paths = $-I.map {|p| "-I\"#{File.expand_path(p)}\"" }.join(" ")
`#{Gem.ruby} #{load_paths} #{$0} #{ORIG_ARGV.join(" ")} -t\"#{self.class}\"`
ENV.delete("ISOLATION_TEST")
ENV.delete("ISOLATION_OUTPUT")
return tmpfile.read.unpack("m")[0]
end
end
end