test_message.rb

require 'test_helper'
require 'support/test_util'
require 'openid/message'

require 'rexml/document'

module OpenID
  module GetArgsMixin

    # Tests a standard set of behaviors of Message.get_arg with
    # variations on handling defaults.
    def get_arg_tests(ns, key, expected=nil)
      assert_equal(expected, @m.get_arg(ns, key))

      if expected.nil?
        assert_equal(@m.get_arg(ns, key, :a_default), :a_default)
        assert_raise(Message::KeyNotFound) { @m.get_arg(ns, key, NO_DEFAULT) }
      else
        assert_equal(@m.get_arg(ns, key, :a_default), expected)
        assert_equal(@m.get_arg(ns, key, NO_DEFAULT), expected)
      end

    end

  end

  class EmptyMessageTestCase < Test::Unit::TestCase
    include GetArgsMixin

    def setup
      @m = Message.new
    end

    def test_get_aliased_arg_no_default
      assert_raises(Message::KeyNotFound) do
        @m.get_aliased_arg('ns.pork', NO_DEFAULT)
      end

      ns_uri = "urn:pork"
      @m.namespaces.add_alias(ns_uri, 'pork_alias')

      # Should return ns_uri.
      assert_equal(ns_uri, @m.get_aliased_arg('ns.pork_alias', NO_DEFAULT))
    end

    def test_to_post_args
      assert_equal({}, @m.to_post_args)
    end

    def test_to_args
      assert_equal({}, @m.to_args)
    end

    def test_to_kvform
      assert_equal('', @m.to_kvform)
    end

    def test_from_kvform
      kvform = "foo:bar\none:two\n"
      args = {'foo' => 'bar', 'one' => 'two'}
      expected_result = Message.from_openid_args(args)

      assert_equal(expected_result, Message.from_kvform(kvform))
    end

    def test_to_url_encoded
      assert_equal('', @m.to_url_encoded)
    end

    def test_to_url
      base_url = 'http://base.url/'
      assert_equal(base_url, @m.to_url(base_url))
    end

    def test_get_openid
      assert_equal(nil, @m.get_openid_namespace)
    end

    def test_get_key_openid
      assert_raise(UndefinedOpenIDNamespace) {
        @m.get_key(OPENID_NS, nil)
      }
    end

    def test_get_key_bare
      assert_equal('foo', @m.get_key(BARE_NS, 'foo'))
    end

    def test_get_key_ns1
      assert_equal(nil, @m.get_key(OPENID1_NS, 'foo'))
    end

    def test_get_key_ns2
      assert_equal(nil, @m.get_key(OPENID2_NS, 'foo'))
    end

    def test_get_key_ns3
      assert_equal(nil, @m.get_key('urn:something-special', 'foo'))
    end

    def test_has_key
      assert_raise(UndefinedOpenIDNamespace) {
        @m.has_key?(OPENID_NS, 'foo')
      }
    end

    def test_has_key_bare
      assert_equal(false, @m.has_key?(BARE_NS, 'foo'))
    end

    def test_has_key_ns1
      assert_equal(false, @m.has_key?(OPENID1_NS, 'foo'))
    end

    def test_has_key_ns2
      assert_equal(false, @m.has_key?(OPENID2_NS, 'foo'))
    end

    def test_has_key_ns3
      assert_equal(false, @m.has_key?('urn:xxx', 'foo'))
    end

    def test_get_arg
      assert_raise(UndefinedOpenIDNamespace) {
        @m.get_args(OPENID_NS)
      }
    end

    def test_get_arg_bare
      get_arg_tests(ns=BARE_NS, key='foo')
    end

    def test_get_arg_ns1
      get_arg_tests(ns=OPENID1_NS, key='foo')
    end

    def test_get_arg_ns2
      get_arg_tests(ns=OPENID2_NS, key='foo')
    end

    def test_get_arg_ns3
      get_arg_tests(ns='urn:nothing-significant', key='foo')
    end

    def test_get_args
      assert_raise(UndefinedOpenIDNamespace) {
        @m.get_args(OPENID_NS)
      }
    end

    def test_get_args_bare
      assert_equal({}, @m.get_args(BARE_NS))
    end

    def test_get_args_ns1
      assert_equal({}, @m.get_args(OPENID1_NS))
    end

    def test_get_args_ns2
      assert_equal({}, @m.get_args(OPENID2_NS))
    end

    def test_get_args_ns3
      assert_equal({}, @m.get_args('urn:xxx'))
    end

    def test_update_args
      assert_raise(UndefinedOpenIDNamespace) {
        @m.update_args(OPENID_NS, {'does not'=>'matter'})
      }
    end

    def _test_update_args_ns(ns)
      updates = {
        'camper van beethoven' => 'david l',
        'magnolia electric, co' => 'jason m'
      }
      assert_equal({}, @m.get_args(ns))
      @m.update_args(ns, updates)
      assert_equal(updates, @m.get_args(ns))
    end

    def test_update_args_bare
      _test_update_args_ns(BARE_NS)
    end
    def test_update_args_ns1
      _test_update_args_ns(OPENID1_NS)
    end
    def test_update_args_ns2
      _test_update_args_ns(OPENID2_NS)
    end
    def test_update_args_ns3
      _test_update_args_ns('urn:xxx')
    end

    def test_set_arg
      assert_raise(UndefinedOpenIDNamespace) {
        @m.set_arg(OPENID_NS,'does not','matter')
      }
    end

    def _test_set_arg_ns(ns)
      key = 'Camper Van Beethoven'
      value = 'David Lowery'
      assert_equal(nil, @m.get_arg(ns, key))
      @m.set_arg(ns, key, value)
      assert_equal(value, @m.get_arg(ns, key))
    end

    def test_set_arg_bare
      _test_set_arg_ns(BARE_NS)
    end
    def test_set_arg_ns1
      _test_set_arg_ns(OPENID1_NS)
    end
    def test_set_arg_ns2
      _test_set_arg_ns(OPENID2_NS)
    end
    def test_set_arg_ns3
      _test_set_arg_ns('urn:xxx')
    end

    def test_del_arg
      assert_raise(UndefinedOpenIDNamespace) {
        @m.set_arg(OPENID_NS, 'does not', 'matter')
      }
    end

    def _test_del_arg_ns(ns)
      key = 'Fleeting Joys'
      assert_equal(nil, @m.del_arg(ns, key))
    end

    def test_del_arg_bare
      _test_del_arg_ns(BARE_NS)
    end
    def test_del_arg_ns1
      _test_del_arg_ns(OPENID1_NS)
    end
    def test_del_arg_ns2
      _test_del_arg_ns(OPENID2_NS)
    end
    def test_del_arg_ns3
      _test_del_arg_ns('urn:xxx')
    end

    def test_isOpenID1
      assert_equal(false, @m.is_openid1)
    end

    def test_isOpenID2
      assert_equal(false, @m.is_openid2)
    end

    def test_set_openid_namespace
      assert_raise(InvalidOpenIDNamespace) {
        @m.set_openid_namespace('http://invalid/', false)
      }
    end
  end

  class OpenID1MessageTest < Test::Unit::TestCase
    include GetArgsMixin

    def setup
      @m = Message.from_post_args({'openid.mode' => 'error',
                                            'openid.error' => 'unit test'})
    end

    def test_has_openid_ns
      assert_equal(OPENID1_NS, @m.get_openid_namespace)
      assert_equal(OPENID1_NS,
                   @m.namespaces.get_namespace_uri(NULL_NAMESPACE))
    end

    def test_get_aliased_arg
      assert_equal('error', @m.get_aliased_arg('mode'))
    end

    def test_get_aliased_arg_ns
      assert_equal(OPENID1_NS, @m.get_aliased_arg('ns'))
    end

    def test_get_aliased_arg_with_ns
      @m = Message.from_post_args(
          {'openid.mode' => 'error',
           'openid.error' => 'unit test',
           'openid.ns.invalid' => 'http://invalid/',
           'openid.invalid.stuff' => 'things',
           'openid.invalid.stuff.blinky' => 'powerplant',
          })
      assert_equal('http://invalid/', @m.get_aliased_arg('ns.invalid'))
      assert_equal('things', @m.get_aliased_arg('invalid.stuff'))
      assert_equal('powerplant', @m.get_aliased_arg('invalid.stuff.blinky'))
    end

    def test_get_aliased_arg_with_ns_default
      @m = Message.from_post_args({})
      assert_equal('monkeys!', @m.get_aliased_arg('ns.invalid',
                                                  default="monkeys!"))
    end

    def test_to_post_args
      assert_equal({'openid.mode' => 'error',
                     'openid.error' => 'unit test'},
                   @m.to_post_args)
    end

    def test_to_post_args_ns
      invalid_ns = 'http://invalid/'
      @m.namespaces.add_alias(invalid_ns, 'foos')
      @m.set_arg(invalid_ns, 'ball', 'awesome')
      @m.set_arg(BARE_NS, 'xey', 'value')
      assert_equal({'openid.mode' => 'error',
                     'openid.error' => 'unit test',
                     'openid.foos.ball' => 'awesome',
                     'xey' => 'value',
                     'openid.ns.foos' => 'http://invalid/'
                   }, @m.to_post_args)
    end

    def test_to_args
      assert_equal({'mode' => 'error',
                     'error' => 'unit test'},
                   @m.to_args)
    end

    def test_to_kvform
      assert_equal("error:unit test\nmode:error\n",
                   @m.to_kvform)
    end

    def test_to_url_encoded
      assert_equal('openid.error=unit+test&openid.mode=error',
                   @m.to_url_encoded)
    end

    def test_to_url
      base_url = 'http://base.url/'
      actual = @m.to_url(base_url)
      actual_base = actual[0...base_url.length]
      assert_equal(base_url, actual_base)
      assert_equal('?', actual[base_url.length].chr)
      query = actual[base_url.length+1..-1]
      assert_equal({'openid.mode'=>['error'],'openid.error'=>['unit test']},
                   CGI.parse(query))
    end

    def test_get_openid
      assert_equal(OPENID1_NS, @m.get_openid_namespace)
    end

    def test_get_key_openid
      assert_equal('openid.mode', @m.get_key(OPENID_NS, 'mode'))
    end

    def test_get_key_bare
      assert_equal('mode', @m.get_key(BARE_NS, 'mode'))
    end

    def test_get_key_ns1
      assert_equal('openid.mode', @m.get_key(OPENID1_NS, 'mode'))
    end

    def test_get_key_ns2
      assert_equal(nil, @m.get_key(OPENID2_NS, 'mode'))
    end

    def test_get_key_ns3
      assert_equal(nil, @m.get_key('urn:xxx', 'mode'))
    end

    def test_has_key
      assert_equal(true, @m.has_key?(OPENID_NS, 'mode'))
    end
    def test_has_key_bare
      assert_equal(false, @m.has_key?(BARE_NS, 'mode'))
    end
    def test_has_key_ns1
      assert_equal(true, @m.has_key?(OPENID1_NS, 'mode'))
    end
    def test_has_key_ns2
      assert_equal(false, @m.has_key?(OPENID2_NS, 'mode'))
    end
    def test_has_key_ns3
      assert_equal(false, @m.has_key?('urn:xxx', 'mode'))
    end

    def test_get_arg
      assert_equal('error', @m.get_arg(OPENID_NS, 'mode'))
    end

    def test_get_arg_bare
      get_arg_tests(ns=BARE_NS, key='mode')
    end

    def test_get_arg_ns
      get_arg_tests(ns=OPENID_NS, key='mode', expected='error')
    end

    def test_get_arg_ns1
      get_arg_tests(ns=OPENID1_NS, key='mode', expected='error')
    end

    def test_get_arg_ns2
      get_arg_tests(ns=OPENID2_NS, key='mode')
    end

    def test_get_arg_ns3
      get_arg_tests(ns='urn:nothing-significant', key='mode')
    end

    def test_get_args
      assert_equal({'mode'=>'error','error'=>'unit test'},
                   @m.get_args(OPENID_NS))
    end
    def test_get_args_bare
      assert_equal({}, @m.get_args(BARE_NS))
    end
    def test_get_args_ns1
      assert_equal({'mode'=>'error','error'=>'unit test'},
                   @m.get_args(OPENID1_NS))
    end
    def test_get_args_ns2
      assert_equal({}, @m.get_args(OPENID2_NS))
    end
    def test_get_args_ns3
      assert_equal({}, @m.get_args('urn:xxx'))
    end

    def _test_update_args_ns(ns, before=nil)
      if before.nil?
        before = {}
      end
      update_args = {
        'Camper van Beethoven'=>'David Lowery',
        'Magnolia Electric Co.'=>'Jason Molina'
      }
      assert_equal(before, @m.get_args(ns))
      @m.update_args(ns, update_args)
      after = before.dup
      after.update(update_args)
      assert_equal(after, @m.get_args(ns))
    end

    def test_update_args
      _test_update_args_ns(OPENID_NS, {'mode'=>'error','error'=>'unit test'})
    end
    def test_update_args_bare
      _test_update_args_ns(BARE_NS)
    end
    def test_update_args_ns1
      _test_update_args_ns(OPENID1_NS, {'mode'=>'error','error'=>'unit test'})
    end
    def test_update_args_ns2
      _test_update_args_ns(OPENID2_NS)
    end
    def test_update_args_ns3
      _test_update_args_ns('urn:xxx')
    end

    def _test_set_arg_ns(ns)
      key = 'awesometown'
      value = 'funny'
      assert_equal(nil, @m.get_arg(ns,key))
      @m.set_arg(ns, key, value)
      assert_equal(value, @m.get_arg(ns,key))
    end

    def test_set_arg; _test_set_arg_ns(OPENID_NS); end
    def test_set_arg_bare; _test_set_arg_ns(BARE_NS); end
    def test_set_arg_ns1; _test_set_arg_ns(OPENID1_NS); end
    def test_set_arg_ns2; _test_set_arg_ns(OPENID2_NS); end
    def test_set_arg_ns3; _test_set_arg_ns('urn:xxx'); end

    def _test_del_arg_ns(ns)
      key = 'marry an'
      value = 'ice cream sandwich'
      @m.set_arg(ns, key, value)
      assert_equal(value, @m.get_arg(ns,key))
      @m.del_arg(ns,key)
      assert_equal(nil, @m.get_arg(ns,key))
    end

    def test_del_arg; _test_del_arg_ns(OPENID_NS); end
    def test_del_arg_bare; _test_del_arg_ns(BARE_NS); end
    def test_del_arg_ns1; _test_del_arg_ns(OPENID1_NS); end
    def test_del_arg_ns2; _test_del_arg_ns(OPENID2_NS); end
    def test_del_arg_ns3; _test_del_arg_ns('urn:yyy'); end

    def test_isOpenID1
      assert_equal(true, @m.is_openid1)
    end

    def test_isOpenID2
      assert_equal(false, @m.is_openid2)
    end

    def test_equal
      assert_equal(Message.new, Message.new)
      assert_not_equal(Message.new, nil)
    end

    def test_from_openid_args_undefined_ns
      expected = 'almost.complete'
      msg = Message.from_openid_args({'coverage.is' => expected})
      actual = msg.get_arg(OPENID1_NS, 'coverage.is')
      assert_equal(expected, actual)
    end

    # XXX: we need to implement the KVForm module before we can fix this
    def TODOtest_from_kvform
      kv = 'foos:ball\n'
      msg = Message.from_kvform(kv)
      assert_equal(msg.get(OPENID1_NS, 'foos'), 'ball')
    end

    def test_initialize_sets_namespace
      msg = Message.new(OPENID1_NS)
      assert_equal(OPENID1_NS, msg.get_openid_namespace)
    end
  end

  class OpenID1ExplicitMessageTest < Test::Unit::TestCase
    # XXX - check to make sure the test suite will get built the way this
    # expects.
    def setup
      @m = Message.from_post_args({'openid.mode'=>'error',
                                          'openid.error'=>'unit test',
                                          'openid.ns'=>OPENID1_NS})
    end

    def test_to_post_args
      assert_equal({'openid.mode' => 'error',
                    'openid.error' => 'unit test',
                    'openid.ns'=>OPENID1_NS,
                    },
                   @m.to_post_args)
    end

    def test_to_post_args_ns
      invalid_ns = 'http://invalid/'
      @m.namespaces.add_alias(invalid_ns, 'foos')
      @m.set_arg(invalid_ns, 'ball', 'awesome')
      @m.set_arg(BARE_NS, 'xey', 'value')
      assert_equal({'openid.mode' => 'error',
                     'openid.error' => 'unit test',
                     'openid.foos.ball' => 'awesome',
                     'xey' => 'value',
                     'openid.ns'=>OPENID1_NS,
                     'openid.ns.foos' => 'http://invalid/'
                   }, @m.to_post_args)
    end

    def test_to_args
      assert_equal({'mode' => 'error',
                     'error' => 'unit test',
                     'ns'=>OPENID1_NS
                     },
                   @m.to_args)
    end

    def test_to_kvform
      assert_equal("error:unit test\nmode:error\nns:#{OPENID1_NS}\n",
                   @m.to_kvform)
    end

    def test_to_url_encoded
      assert_equal('openid.error=unit+test&openid.mode=error&openid.ns=http%3A%2F%2Fopenid.net%2Fsignon%2F1.0',
                   @m.to_url_encoded)
    end

    def test_to_url
      base_url = 'http://base.url/'
      actual = @m.to_url(base_url)
      actual_base = actual[0...base_url.length]
      assert_equal(base_url, actual_base)
      assert_equal('?', actual[base_url.length].chr)
      query = actual[base_url.length+1..-1]
      assert_equal({'openid.mode'=>['error'],
                    'openid.error'=>['unit test'],
                    'openid.ns'=>[OPENID1_NS],
                    },
                   CGI.parse(query))
    end


  end

  class OpenID2MessageTest < Test::Unit::TestCase
    include TestUtil

    def setup
      @m = Message.from_post_args({'openid.mode'=>'error',
                                          'openid.error'=>'unit test',
                                          'openid.ns'=>OPENID2_NS})
      @m.set_arg(BARE_NS, 'xey', 'value')
    end

    def test_to_args_fails
      assert_raises(ArgumentError) {
        @m.to_args
      }
    end

    def test_fix_ns_non_string
      # Using has_key to invoke _fix_ns since _fix_ns should be private
      assert_raises(ArgumentError) {
        @m.has_key?(:non_string_namespace, "key")
      }
    end

    def test_fix_ns_non_uri
      # Using has_key to invoke _fix_ns since _fix_ns should be private
      assert_log_matches(/identifiers SHOULD be URIs/) {
        @m.has_key?("foo", "key")
      }
    end

    def test_fix_ns_sreg_literal
      # Using has_key to invoke _fix_ns since _fix_ns should be private
      assert_log_matches(/identifiers SHOULD be URIs/, /instead of "sreg"/) {
        @m.has_key?("sreg", "key")
      }
    end

    def test_copy
      n = @m.copy
      assert_equal(@m, n)
    end

    def test_to_post_args
      assert_equal({'openid.mode' => 'error',
                     'openid.error' => 'unit test',
                     'openid.ns' => OPENID2_NS,
                     'xey' => 'value',
                   }, @m.to_post_args)
    end

    def test_to_post_args_ns
      invalid_ns = 'http://invalid/'
      @m.namespaces.add_alias(invalid_ns, 'foos')
      @m.set_arg(invalid_ns, 'ball', 'awesome')
      assert_equal({'openid.mode' => 'error',
                     'openid.error' => 'unit test',
                     'openid.ns' => OPENID2_NS,
                     'openid.ns.foos' => invalid_ns,
                     'openid.foos.ball' => 'awesome',
                     'xey' => 'value',
                   }, @m.to_post_args)
    end

    def test_to_args
      @m.del_arg(BARE_NS, 'xey')
      assert_equal({'mode' => 'error',
                   'error' => 'unit test',
                   'ns' => OPENID2_NS},
                   @m.to_args)
    end

    def test_to_kvform
      @m.del_arg(BARE_NS, 'xey')
      assert_equal("error:unit test\nmode:error\nns:#{OPENID2_NS}\n",
                   @m.to_kvform)
    end

    def _test_urlencoded(s)
      expected_list = ["openid.error=unit+test",
                       "openid.mode=error",
                       "openid.ns=#{CGI.escape(OPENID2_NS)}",
                       "xey=value"]
      # Hard to do this with string comparison since the mapping doesn't
      # preserve order.
      encoded_list = s.split('&')
      encoded_list.sort!
      assert_equal(expected_list, encoded_list)
    end

    def test_to_urlencoded
      _test_urlencoded(@m.to_url_encoded)
    end

    def test_to_url
      base_url = 'http://base.url/'
      actual = @m.to_url(base_url)
      actual_base = actual[0...base_url.length]
      assert_equal(base_url, actual_base)
      assert_equal('?', actual[base_url.length].chr)
      query = actual[base_url.length+1..-1]
      _test_urlencoded(query)
    end

    def test_get_openid
      assert_equal(OPENID2_NS, @m.get_openid_namespace)
    end

    def test_get_key_openid
      assert_equal('openid.mode', @m.get_key(OPENID2_NS, 'mode'))
    end

    def test_get_key_bare
      assert_equal('mode', @m.get_key(BARE_NS, 'mode'))
    end

    def test_get_key_ns1
      assert_equal(nil, @m.get_key(OPENID1_NS, 'mode'))
    end

    def test_get_key_ns2
      assert_equal('openid.mode', @m.get_key(OPENID2_NS, 'mode'))
    end

    def test_get_key_ns3
      assert_equal(nil, @m.get_key('urn:xxx', 'mode'))
    end

    def test_has_key_openid
      assert_equal(true, @m.has_key?(OPENID_NS,'mode'))
    end

    def test_has_key_bare
      assert_equal(false, @m.has_key?(BARE_NS,'mode'))
    end

    def test_has_key_ns1
      assert_equal(false, @m.has_key?(OPENID1_NS,'mode'))
    end

    def test_has_key_ns2
      assert_equal(true, @m.has_key?(OPENID2_NS,'mode'))
    end

    def test_has_key_ns3
      assert_equal(false, @m.has_key?('urn:xxx','mode'))
    end

    # XXX - getArgTest
    def test_get_arg_openid
      assert_equal('error', @m.get_arg(OPENID_NS,'mode'))
    end

    def test_get_arg_bare
      assert_equal(nil, @m.get_arg(BARE_NS,'mode'))
    end

    def test_get_arg_ns1
      assert_equal(nil, @m.get_arg(OPENID1_NS,'mode'))
    end

    def test_get_arg_ns2
      assert_equal('error', @m.get_arg(OPENID2_NS,'mode'))
    end

    def test_get_arg_ns3
      assert_equal(nil, @m.get_arg('urn:bananastand','mode'))
    end

    def test_get_args_openid
      assert_equal({'mode'=>'error','error'=>'unit test'},
                   @m.get_args(OPENID_NS))
    end

    def test_get_args_bare
      assert_equal({'xey'=>'value'},
                   @m.get_args(BARE_NS))
    end

    def test_get_args_ns1
      assert_equal({},
                   @m.get_args(OPENID1_NS))
    end

    def test_get_args_ns2
      assert_equal({'mode'=>'error','error'=>'unit test'},
                   @m.get_args(OPENID2_NS))
    end

    def test_get_args_ns3
      assert_equal({},
                   @m.get_args('urn:loose seal'))
    end

    def _test_update_args_ns(ns, before=nil)
      before = {} unless before
      update_args = {'aa'=>'bb','cc'=>'dd'}

      assert_equal(before, @m.get_args(ns))
      @m.update_args(ns, update_args)
      after = before.dup
      after.update(update_args)
      assert_equal(after, @m.get_args(ns))
    end

    def test_update_args_openid
      _test_update_args_ns(OPENID_NS, {'mode'=>'error','error'=>'unit test'})
    end

    def test_update_args_bare
      _test_update_args_ns(BARE_NS, {'xey'=>'value'})
    end

    def test_update_args_ns1
      _test_update_args_ns(OPENID1_NS)
    end

    def test_update_args_ns2
      _test_update_args_ns(OPENID2_NS, {'mode'=>'error','error'=>'unit test'})
    end

    def test_update_args_ns3
      _test_update_args_ns('urn:sven')
    end

    def _test_set_arg_ns(ns)
      key = "logan's"
      value = "run"
      assert_equal(nil, @m.get_arg(ns,key))
      @m.set_arg(ns, key, value)
      assert_equal(value, @m.get_arg(ns,key))
    end

    def test_set_arg_openid; _test_set_arg_ns(OPENID_NS); end
    def test_set_arg_bare; _test_set_arg_ns(BARE_NS); end
    def test_set_arg_ns1; _test_set_arg_ns(OPENID1_NS); end
    def test_set_arg_ns2; _test_set_arg_ns(OPENID2_NS); end
    def test_set_arg_ns3; _test_set_arg_ns('urn:g'); end

    def test_bad_alias
      # Make sure dotted aliases and OpenID protocol fields are not allowed
      # as namespace aliases.

      fields = OPENID_PROTOCOL_FIELDS + ['dotted.alias']

      fields.each { |f|
        args = {"openid.ns.#{f}" => "blah#{f}",
          "openid.#{f}.foo" => "test#{f}"}

        # .fromPostArgs covers .fromPostArgs, .fromOpenIDArgs,
        # ._fromOpenIDArgs, and .fromOpenIDArgs (since it calls
        # .fromPostArgs).
        assert_raise(AssertionError) {
          Message.from_post_args(args)
        }
      }
    end

    def test_from_post_args
      msg = Message.from_post_args({'foos' => 'ball'})
      assert_equal('ball', msg.get_arg(BARE_NS, 'foos'))
    end

    def _test_del_arg_ns(ns)
      key = 'no'
      value = 'socks'
      assert_equal(nil, @m.get_arg(ns, key))
      @m.set_arg(ns, key, value)
      assert_equal(value, @m.get_arg(ns, key))
      @m.del_arg(ns, key)
      assert_equal(nil, @m.get_arg(ns, key))
    end

    def test_del_arg_openid; _test_del_arg_ns(OPENID_NS); end
    def test_del_arg_bare; _test_del_arg_ns(BARE_NS); end
    def test_del_arg_ns1; _test_del_arg_ns(OPENID1_NS); end
    def test_del_arg_ns2; _test_del_arg_ns(OPENID2_NS); end
    def test_del_arg_ns3; _test_del_arg_ns('urn:tofu'); end

    def test_overwrite_extension_arg
      ns = 'urn:unittest_extension'
      key = 'mykey'
      value_1 = 'value_1'
      value_2 = 'value_2'

      @m.set_arg(ns, key, value_1)
      assert_equal(value_1, @m.get_arg(ns, key))
      @m.set_arg(ns, key, value_2)
      assert_equal(value_2, @m.get_arg(ns, key))
    end

    def test_argList
      assert_raise(ArgumentError) {
        Message.from_post_args({'arg' => [1, 2, 3]})
      }
    end

    def test_isOpenID1
      assert_equal(false, @m.is_openid1)
    end

    def test_isOpenID2
      assert_equal(true, @m.is_openid2)
    end
  end

  class MessageTest < Test::Unit::TestCase
    def setup
      @postargs = {
        'openid.ns' => OPENID2_NS,
        'openid.mode' => 'checkid_setup',
        'openid.identity' => 'http://bogus.example.invalid:port/',
        'openid.assoc_handle' => 'FLUB',
        'openid.return_to' => 'Neverland',
        'openid.ax.value.fullname' => "Bob&Smith'"
      }

      @action_url = 'scheme://host:port/path?query'

      @form_tag_attrs = {
        'company' => 'janrain',
        'class' => 'fancyCSS',
      }

      @submit_text = 'GO!'

      ### Expected data regardless of input

      @required_form_attrs = {
        'accept-charset' => 'UTF-8',
        'enctype' => 'application/x-www-form-urlencoded',
        'method' => 'post',
        'id' => Util::HTML_FORM_ID
      }
    end

    def _checkForm(html, message_, action_url,
                   form_tag_attrs, submit_text)
      @xml = REXML::Document.new(html)

      # Get root element
      form = @xml.root

      # Check required form attributes
      @required_form_attrs.each { |k, v|
        assert(form.attributes[k] == v,
               "Expected '#{v}' for required form attribute '#{k}', got '#{form.attributes[k]}'")
      }

      # Check extra form attributes
      @form_tag_attrs.each { |k, v|
        # Skip attributes that already passed the required attribute
        # check, since they should be ignored by the form generation
        # code.
        if @required_form_attrs.include?(k)
          continue
        end

        assert(form.attributes[k] == v,
               "Form attribute '#{k}' should be '#{v}', found '#{form.attributes[k]}'")

        # Check hidden fields against post args
        hiddens = []
        form.each { |e|
          if (e.is_a?(REXML::Element)) and
              (e.name.upcase() == 'INPUT') and
              (e.attributes['type'].upcase() == 'HIDDEN')
            # For each post arg, make sure there is a hidden with that
            # value.  Make sure there are no other hiddens.
            hiddens += [e]
          end
        }

        message_.to_post_args().each { |name, value|
          success = false

          hiddens.each { |e|
            if e.attributes['name'] == name
              assert(e.attributes['value'] == value,
                     "Expected value of hidden input '#{e.attributes['name']}' " +
                     "to be '#{value}', got '#{e.attributes['value']}'")
              success = true
              break
            end
          }

          if !success
            flunk "Post arg '#{name}' not found in form"
          end
        }

        hiddens.each { |e|
          assert(message_.to_post_args().keys().include?(e.attributes['name']),
                 "Form element for '#{e.attributes['name']}' not in " +
                 "original message")
        }

        # Check action URL
        assert(form.attributes['action'] == action_url,
               "Expected form 'action' to be '#{action_url}', got '#{form.attributes['action']}'")

        # Check submit text
        submits = []
        form.each { |e|
          if (e.is_a?(REXML::Element)) and
              (e.name.upcase() == 'INPUT') and
              e.attributes['type'].upcase() == 'SUBMIT'
            submits += [e]
          end
        }

        assert(submits.length == 1,
               "Expected only one 'input' with type = 'submit', got #{submits.length}")

        assert(submits[0].attributes['value'] == submit_text,
               "Expected submit value to be '#{submit_text}', " +
               "got '#{submits[0].attributes['value']}'")
      }

    end

    def test_toFormMarkup
      m = Message.from_post_args(@postargs)
      html = m.to_form_markup(@action_url, @form_tag_attrs,
                              @submit_text)
      _checkForm(html, m, @action_url,
                 @form_tag_attrs, @submit_text)
    end

    def test_overrideMethod
      # Be sure that caller cannot change form method to GET.
      m = Message.from_post_args(@postargs)

      tag_attrs = @form_tag_attrs.clone
      tag_attrs['method'] = 'GET'

      html = m.to_form_markup(@action_url, @form_tag_attrs,
                              @submit_text)
      _checkForm(html, m, @action_url,
                 @form_tag_attrs, @submit_text)
    end

    def test_overrideRequired
      # Be sure that caller CANNOT change the form charset for
      # encoding type.
      m = Message.from_post_args(@postargs)

      tag_attrs = @form_tag_attrs.clone
      tag_attrs['accept-charset'] = 'UCS4'
      tag_attrs['enctype'] = 'invalid/x-broken'

      html = m.to_form_markup(@action_url, tag_attrs,
                              @submit_text)
      _checkForm(html, m, @action_url,
                 tag_attrs, @submit_text)
    end
  end

  class NamespaceMapTestCase < Test::Unit::TestCase

    def test_onealias
      nsm = NamespaceMap.new
      uri = 'http://example.com/foo'
      _alias = 'foo'
      nsm.add_alias(uri, _alias)
      assert_equal(uri, nsm.get_namespace_uri(_alias))
      assert_equal(_alias, nsm.get_alias(uri))
    end


    def test_iteration
      nsm = NamespaceMap.new
      uripat = "http://example.com/foo%i"
      nsm.add(uripat % 0)

      (1..23).each { |i|
        assert_equal(false, nsm.member?(uripat % i))
        nsm.add(uripat % i)
      }
      nsm.each { |uri, _alias|
        assert_equal(uri[22..-1], _alias[3..-1])
      }

      nsm = NamespaceMap.new
      alias_ = 'bogus'
      uri = 'urn:bogus'

      nsm.add_alias(uri, alias_)

      assert_equal(nsm.aliases(), [alias_])
      assert_equal(nsm.namespace_uris(), [uri])
    end

    def test_register_default_alias
      invalid_ns = 'http://invalid/'
      alias_ = 'invalid'
      Message.register_namespace_alias(invalid_ns, alias_)
      # Doing it again doesn't raise an exception
      Message.register_namespace_alias(invalid_ns, alias_)

      # Once it's registered, you can't register it again
      assert_raises(NamespaceAliasRegistrationError) {
        Message.register_namespace_alias(invalid_ns, 'another_alias')
      }

      # Once it's registered, you can't register another URL with that alias
      assert_raises(NamespaceAliasRegistrationError) {
        Message.register_namespace_alias('http://janrain.com/', alias_)
      }

      # It gets used automatically by the Message class:
      msg = Message.from_openid_args({'invalid.stuff' => 'things'})
      assert(msg.is_openid1)
      assert_equal(alias_, msg.namespaces.get_alias(invalid_ns))
      assert_equal(invalid_ns, msg.namespaces.get_namespace_uri(alias_))
    end

    def test_alias_defined_twice
      nsm = NamespaceMap.new
      uri = 'urn:bogus'

      nsm.add_alias(uri, 'foos')
      assert_raises(IndexError) {
        nsm.add_alias(uri, 'ball')
      }
    end
  end
end