require 'test/unit'
require 'webrick'
require_relative 'webrick_testing'
require "xmlrpc/server"
require 'xmlrpc/client'

class Test_Webrick < Test::Unit::TestCase
  include WEBrick_Testing

  def create_servlet
    s = XMLRPC::WEBrickServlet.new

    s.add_handler("test.add") do |a,b|
      a + b
    end

    s.add_handler("test.div") do |a,b|
      if b == 0
        raise XMLRPC::FaultException.new(1, "division by zero")
      else
        a / b
      end
    end

    s.set_default_handler do |name, *args|
      raise XMLRPC::FaultException.new(-99, "Method #{name} missing" +
            " or wrong number of parameters!")
    end

    s.add_introspection

    return s
  end

  def setup_http_server(port, use_ssl)
    option = {
      :Port => port,
      :SSLEnable => use_ssl,
    }
    if use_ssl
      require 'webrick/https'
      option.update(
        :SSLVerifyClient => ::OpenSSL::SSL::VERIFY_NONE,
        :SSLCertName => []
      )
    end

    start_server(option) {|w| w.mount('/RPC2', create_servlet) }

    @s = XMLRPC::Client.new3(:port => port, :use_ssl => use_ssl)
  end

  PORT = 8070
  def test_client_server
    # NOTE: I don't enable SSL testing as this hangs
    [false].each do |use_ssl|
      begin
        setup_http_server(PORT, use_ssl)
        do_test
      ensure
        stop_server
      end
    end
  end

  def do_test
    # simple call
    assert_equal 9, @s.call('test.add', 4, 5)

    # fault exception
    assert_raise(XMLRPC::FaultException) { @s.call('test.div', 1, 0) }

    # fault exception via call2
    ok, param = @s.call2('test.div', 1, 0)
    assert_equal false, ok
    assert_instance_of XMLRPC::FaultException, param
    assert_equal 1, param.faultCode
    assert_equal 'division by zero', param.faultString

    # call2 without fault exception
    ok, param = @s.call2('test.div', 10, 5)
    assert_equal true, ok
    assert_equal param, 2

    # introspection
    assert_equal ["test.add", "test.div", "system.listMethods", "system.methodSignature", "system.methodHelp"], @s.call("system.listMethods")

    # default handler (missing handler)
    ok, param = @s.call2('test.nonexisting')
    assert_equal false, ok
    assert_equal(-99, param.faultCode)

    # default handler (wrong number of arguments)
    ok, param = @s.call2('test.add', 1, 2, 3)
    assert_equal false, ok
    assert_equal(-99, param.faultCode)
  end
end