mini_racer/test/test_crash.rb

$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
require 'mini_racer'

def test
  context = MiniRacer::Context.new(timeout: 10)
  context.attach("echo", proc{ |msg|
    GC.start
    msg
  })

  GC.disable
  100.times { 'foo' } # alloc a handful of objects
  GC.enable


  context.eval("while(true) echo('foo');") rescue nil

  # give some time to clean up
  puts "we are done"
end

def test2

  context = MiniRacer::Context.new(timeout: 5)

  context.attach("marsh", proc do |a, b, c|
    return [a,b,c] if a.is_a?(MiniRacer::FailedV8Conversion) || b.is_a?(MiniRacer::FailedV8Conversion) || c.is_a?(MiniRacer::FailedV8Conversion)

    a[rand(10000).to_s] = "a"
    b[rand(10000).to_s] = "b"
    c[rand(10000).to_s] = "c"
    [a,b,c]
  end)

  begin
    context.eval("var a = [{},{},{}]; while(true) { a = marsh(a[0],a[1],a[2]); }")
  rescue
    p "BOOM"
  end

end

def test3
  snapshot = MiniRacer::Snapshot.new('Math.sin = 1;')

  begin
    snapshot.warmup!('var a = Math.sin(1);')
  rescue
    # do nothing
  end

  context = MiniRacer::Context.new(snapshot: snapshot)

  assert_equal 1, context.eval('Math.sin')
end


500_000.times do
  test2
end

exit

test
GC.start

test

10.times{GC.start}
test