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

describe 'UNIXSocket' do
  describe Thrift::UNIXSocket do
    before(:each) do
      @path = '/tmp/thrift_spec_socket'
      @socket = Thrift::UNIXSocket.new(@path)
      @handle = double("Handle", :closed? => false)
      allow(@handle).to receive(:close)
      allow(::UNIXSocket).to receive(:new).and_return(@handle)
    end

    it_should_behave_like "a socket"

    it "should raise a TransportException when it cannot open a socket" do
      expect(::UNIXSocket).to receive(:new).and_raise(StandardError)
      expect { @socket.open }.to raise_error(Thrift::TransportException) { |e| expect(e.type).to eq(Thrift::TransportException::NOT_OPEN) }
    end

    it "should accept an optional timeout" do
      allow(::UNIXSocket).to receive(:new)
      expect(Thrift::UNIXSocket.new(@path, 5).timeout).to eq(5)
    end

    it "should provide a reasonable to_s" do
      allow(::UNIXSocket).to receive(:new)
      expect(Thrift::UNIXSocket.new(@path).to_s).to eq("domain(#{@path})")
    end
  end

  describe Thrift::UNIXServerSocket do
    before(:each) do
      @path = '/tmp/thrift_spec_socket'
      @socket = Thrift::UNIXServerSocket.new(@path)
    end

    it "should create a handle when calling listen" do
      expect(UNIXServer).to receive(:new).with(@path)
      @socket.listen
    end

    it "should create a Thrift::UNIXSocket to wrap accepted sockets" do
      handle = double("UNIXServer")
      expect(UNIXServer).to receive(:new).with(@path).and_return(handle)
      @socket.listen
      sock = double("sock")
      expect(handle).to receive(:accept).and_return(sock)
      trans = double("UNIXSocket")
      expect(Thrift::UNIXSocket).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::UNIXServerSocket.new(@path, 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::UNIXServerSocket.new(@path, client_timeout: nil).client_timeout).to be_nil
      expect(Thrift::UNIXServerSocket.new(@path, client_timeout: 0).client_timeout).to eq(0)
    end

    it "should close the handle when closed" do
      handle = double("UNIXServer", :closed? => false)
      expect(UNIXServer).to receive(:new).with(@path).and_return(handle)
      @socket.listen
      expect(handle).to receive(:close)
      allow(File).to receive(:delete)
      @socket.close
    end

    it "should delete the socket when closed" do
      handle = double("UNIXServer", :closed? => false)
      expect(UNIXServer).to receive(:new).with(@path).and_return(handle)
      @socket.listen
      allow(handle).to receive(:close)
      expect(File).to receive(:delete).with(@path)
      @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("UNIXServer", :closed? => false)
      allow(UNIXServer).to receive(:new).and_return(handle)
      allow(File).to receive(:delete)
      @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("domain(#{@path})")
    end
  end
end
