zen_spec.rb

require'libuv'


describeLibuv::Listenerdo
it"should ensure there are no remaining object references in callbacks",network: truedo
require'objspace'

checked=[]

# These are created by loop objects and are never cleaned up
# This is OK as the loops are expected to execute for the life of the application
except=[::Libuv::Async, ::Libuv::Timer, ::Libuv::Prepare, ::Libuv::Signal]

ObjectSpace.each_object(Class)do |cls|
nextunlesscls.ancestors.include? ::Libuv::Handle
nextifchecked.include?cls
checked << cls

values=cls.callback_lookup.values
values.select!{|val| except.include?(val.class) ? false : val.class}

ifvalues.length > 0
puts"\nMemory Leak in #{cls} with #{values.length} left over objects"
puts"Checked #{checked.length} classes, objects are:"
values.eachdo |val|
puts"\n#{val}\n"
end
raise'Free the machines!'
end
end

expect(checked.length).tobe > 3
end
end