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require "helper/all"

describe EM::Synchrony do
  describe "#sync" do
    it "returns immediately if the syncee already succeeded" do
      args = stub("args")

      Fiber.new {
        df = EM::DefaultDeferrable.new
        df.succeed args
        EM::Synchrony.sync(df).should == args

        df = EM::DefaultDeferrable.new
        df.succeed nil
        EM::Synchrony.sync(df).should == nil
      }.resume
    end
  end

  describe "#next_tick" do
    it "should wrap next_tick into a Fiber context" do
      Fiber.new {
        df = EM::DefaultDeferrable.new

        EM::Synchrony.next_tick do
          df.succeed args
          EM::Synchrony.sync(df).should == args
        end
      }.resume
    end
  end

end