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module ActiveSupport::Testing
class ProxyTestResult
def initialize
@calls = []
end
def __replay__(result)
@calls.each do |name, args|
result.send(name, *args)
end
end
def method_missing(name, *args)
@calls << [name, args]
end
end
module Isolation
def self.forking_env?
!ENV["NO_FORK"] && RUBY_PLATFORM !~ /mswin|mingw|java/
end
def run(result)
unless defined?(@@ran_class_setup)
self.class.setup
@@ran_class_setup = true
end
yield(Test::Unit::TestCase::STARTED, name)
@_result = result
proxy = run_in_isolation do |proxy|
super(proxy) { }
end
proxy.__replay__(@_result)
yield(Test::Unit::TestCase::FINISHED, name)
end
module Forking
def run_in_isolation(&blk)
read, write = IO.pipe
pid = fork do
read.close
proxy = ProxyTestResult.new
yield proxy
write.puts [Marshal.dump(proxy)].pack("m")
exit!
end
write.close
result = read.read
Process.wait2(pid)
Marshal.load(result.unpack("m")[0])
end
end
module Subprocess
# Crazy H4X to get this working in windows / jruby with
# no forking.
def run_in_isolation(&blk)
require "tempfile"
if ENV["ISOLATION_TEST"]
proxy = ProxyTestResult.new
yield proxy
File.open(ENV["ISOLATION_OUTPUT"], "w") do |file|
file.puts [Marshal.dump(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 Marshal.load(tmpfile.read.unpack("m")[0])
end
end
end
end
include forking_env? ? Forking : Subprocess
end
end
# Only in subprocess for windows / jruby.
if ENV['ISOLATION_TEST']
require "test/unit/collector/objectspace"
class Test::Unit::Collector::ObjectSpace
def include?(test)
super && test.method_name == ENV['ISOLATION_TEST']
end
end
end
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