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require 'spec_helper'
require File.expand_path("#{File.dirname(__FILE__)}/socket_spec_shared")

describe 'Thrift::ServerSocket' do
  describe Thrift::ServerSocket do
    before(:each) do
      @socket = Thrift::ServerSocket.new(1234)
    end

    it "should create a handle when calling listen" do
      expect(TCPServer).to receive(:new).with(nil, 1234)
      @socket.listen
    end

    it "should accept an optional host argument" do
      @socket = Thrift::ServerSocket.new('localhost', 1234)
      expect(TCPServer).to receive(:new).with('localhost', 1234)
      @socket.to_s == "server(localhost:1234)"
      @socket.listen
    end

    it "should create a Thrift::Socket to wrap accepted sockets" do
      handle = double("TCPServer")
      expect(TCPServer).to receive(:new).with(nil, 1234).and_return(handle)
      @socket.listen
      sock = double("sock")
      expect(sock).to receive(:setsockopt).with(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)
      expect(handle).to receive(:accept).and_return(sock)
      trans = double("Socket")
      expect(Thrift::Socket).to receive(:new).and_return(trans)
      expect(trans).to receive(:timeout=).with(Thrift::BaseServerTransport::DEFAULT_CLIENT_TIMEOUT)
      expect(trans).to receive(:handle=).with(sock)
      expect(@socket.accept).to eq(trans)
    end

    it "should default accepted sockets to a finite client timeout" do
      expect(@socket.client_timeout).to eq(5)
    end

    it "should accept a custom client timeout" do
      @socket = Thrift::ServerSocket.new(1234, client_timeout: 2.5)
      expect(@socket.client_timeout).to eq(2.5)
    end

    it "should allow blocking accepted sockets with nil or zero client timeout" do
      expect(Thrift::ServerSocket.new(1234, client_timeout: nil).client_timeout).to be_nil
      expect(Thrift::ServerSocket.new(1234, client_timeout: 0).client_timeout).to eq(0)
    end

    it "should use the accepted socket timeout for writes" do
      handle = double("TCPServer")
      allow(TCPServer).to receive(:new).with(nil, 1234).and_return(handle)
      @socket.listen

      sock = double("sock", :closed? => false)
      allow(sock).to receive(:setsockopt)
      allow(handle).to receive(:accept).and_return(sock)

      transport = @socket.accept
      expect(transport.timeout).to eq(Thrift::BaseServerTransport::DEFAULT_CLIENT_TIMEOUT)

      expect(sock).to receive(:write_nonblock).with("test data").and_raise(IO::EAGAINWaitWritable)
      expect(Process).to receive(:clock_gettime).with(Process::CLOCK_MONOTONIC).and_return(100.0, 100.0, 105.1)
      expect(IO).to receive(:select).with(nil, [sock], nil, 5.0).and_return(nil)

      expect { transport.write("test data") }.to raise_error(Thrift::TransportException) do |e|
        expect(e.type).to eq(Thrift::TransportException::TIMED_OUT)
      end
    end

    it "should close the handle when closed" do
      handle = double("TCPServer", :closed? => false)
      expect(TCPServer).to receive(:new).with(nil, 1234).and_return(handle)
      @socket.listen
      expect(handle).to receive(:close)
      @socket.close
    end

    it "should return nil when accepting if there is no handle" do
      expect(@socket.accept).to be_nil
    end

    it "should return true for closed? when appropriate" do
      handle = double("TCPServer", :closed? => false)
      allow(TCPServer).to receive(:new).and_return(handle)
      @socket.listen
      expect(@socket).not_to be_closed
      allow(handle).to receive(:close)
      @socket.close
      expect(@socket).to be_closed
      @socket.listen
      expect(@socket).not_to be_closed
      allow(handle).to receive(:closed?).and_return(true)
      expect(@socket).to be_closed
    end

    it "should provide a reasonable to_s" do
      expect(@socket.to_s).to eq("socket(:1234)")
    end
  end
end
