rails--rails/activerecord/test/cases/xml_serialization_test.rb

require "cases/helper"
require 'models/contact'
require 'models/post'
require 'models/author'
require 'models/comment'
require 'models/company_in_module'
require 'models/toy'
require 'models/topic'
require 'models/reply'
require 'models/company'

class XmlSerializationTest < ActiveRecord::TestCase
  def test_should_serialize_default_root
    @xml = Contact.new.to_xml
    assert_match %r{^<contact>},  @xml
    assert_match %r{</contact>$}, @xml
  end

  def test_should_serialize_default_root_with_namespace
    @xml = Contact.new.to_xml :namespace=>"http://xml.rubyonrails.org/contact"
    assert_match %r{^<contact xmlns="http://xml.rubyonrails.org/contact">},  @xml
    assert_match %r{</contact>$}, @xml
  end

  def test_should_serialize_custom_root
    @xml = Contact.new.to_xml :root => 'xml_contact'
    assert_match %r{^<xml-contact>},  @xml
    assert_match %r{</xml-contact>$}, @xml
  end

  def test_should_allow_undasherized_tags
    @xml = Contact.new.to_xml :root => 'xml_contact', :dasherize => false
    assert_match %r{^<xml_contact>},  @xml
    assert_match %r{</xml_contact>$}, @xml
    assert_match %r{<created_at},     @xml
  end

  def test_should_allow_camelized_tags
    @xml = Contact.new.to_xml :root => 'xml_contact', :camelize => true
    assert_match %r{^<XmlContact>},  @xml
    assert_match %r{</XmlContact>$}, @xml
    assert_match %r{<CreatedAt},    @xml
  end

  def test_should_allow_skipped_types
    @xml = Contact.new(:age => 25).to_xml :skip_types => true
    assert %r{<age>25</age>}.match(@xml)
  end

  def test_should_include_yielded_additions
    @xml = Contact.new.to_xml do |xml|
      xml.creator "David"
    end
    assert_match %r{<creator>David</creator>}, @xml
  end

  def test_to_xml_with_block
    value = "Rockin' the block"
    xml = Contact.new.to_xml(:skip_instruct => true) do |_xml|
      _xml.tag! "arbitrary-element", value
    end
    assert_equal "<contact>", xml.first(9)
    assert xml.include?(%(<arbitrary-element>#{value}</arbitrary-element>))
  end

  def test_should_skip_instruct_for_included_records
    @contact = Contact.new
    @contact.alternative = Contact.new(:name => 'Copa Cabana')
    @xml = @contact.to_xml(:include => [ :alternative ])
    assert_equal @xml.index('<?xml '), 0
    assert_nil @xml.index('<?xml ', 1)
  end
end

class DefaultXmlSerializationTest < ActiveRecord::TestCase
  def setup
    @contact = Contact.new(
      :name        => 'aaron stack',
      :age         => 25,
      :avatar      => 'binarydata',
      :created_at  => Time.utc(2006, 8, 1),
      :awesome     => false,
      :preferences => { :gem => 'ruby' }
    )
  end

  def test_should_serialize_string
    assert_match %r{<name>aaron stack</name>}, @contact.to_xml
  end

  def test_should_serialize_integer
    assert_match %r{<age type="integer">25</age>}, @contact.to_xml
  end

  def test_should_serialize_binary
    xml = @contact.to_xml
    assert_match %r{YmluYXJ5ZGF0YQ==\n</avatar>},    xml
    assert_match %r{<avatar(.*)(type="binary")},     xml
    assert_match %r{<avatar(.*)(encoding="base64")}, xml
  end

  def test_should_serialize_datetime
    assert_match %r{<created-at type=\"dateTime\">2006-08-01T00:00:00Z</created-at>}, @contact.to_xml
  end

  def test_should_serialize_boolean
    assert_match %r{<awesome type=\"boolean\">false</awesome>}, @contact.to_xml
  end

  def test_should_serialize_hash
    assert_match %r{<preferences>\s*<gem>ruby</gem>\s*</preferences>}m, @contact.to_xml
  end

  def test_uses_serializable_hash_with_only_option
    def @contact.serializable_hash(options=nil)
      super(only: %w(name))
    end

    xml = @contact.to_xml
    assert_match %r{<name>aaron stack</name>}, xml
    assert_no_match %r{age}, xml
    assert_no_match %r{awesome}, xml
  end

  def test_uses_serializable_hash_with_except_option
    def @contact.serializable_hash(options=nil)
      super(except: %w(age))
    end

    xml = @contact.to_xml
    assert_match %r{<name>aaron stack</name>}, xml
    assert_match %r{<awesome type=\"boolean\">false</awesome>}, xml
    assert_no_match %r{age}, xml
  end

  def test_does_not_include_inheritance_column_from_sti
    @contact = ContactSti.new(@contact.attributes)
    assert_equal 'ContactSti', @contact.type

    xml = @contact.to_xml
    assert_match %r{<name>aaron stack</name>}, xml
    assert_no_match %r{<type}, xml
    assert_no_match %r{ContactSti}, xml
  end

  def test_serializable_hash_with_default_except_option_and_excluding_inheritance_column_from_sti
    @contact = ContactSti.new(@contact.attributes)
    assert_equal 'ContactSti', @contact.type

    def @contact.serializable_hash(options={})
      super({ except: %w(age) }.merge!(options))
    end

    xml = @contact.to_xml
    assert_match %r{<name>aaron stack</name>}, xml
    assert_no_match %r{age}, xml
    assert_no_match %r{<type}, xml
    assert_no_match %r{ContactSti}, xml
  end
end

class DefaultXmlSerializationTimezoneTest < ActiveRecord::TestCase
  def test_should_serialize_datetime_with_timezone
    timezone, Time.zone = Time.zone, "Pacific Time (US & Canada)"

    toy = Toy.create(:name => 'Mickey', :updated_at => Time.utc(2006, 8, 1))
    assert_match %r{<updated-at type=\"dateTime\">2006-07-31T17:00:00-07:00</updated-at>}, toy.to_xml
  ensure
    Time.zone = timezone
  end

  def test_should_serialize_datetime_with_timezone_reloaded
    timezone, Time.zone = Time.zone, "Pacific Time (US & Canada)"

    toy = Toy.create(:name => 'Minnie', :updated_at => Time.utc(2006, 8, 1)).reload
    assert_match %r{<updated-at type=\"dateTime\">2006-07-31T17:00:00-07:00</updated-at>}, toy.to_xml
  ensure
    Time.zone = timezone
  end
end

class NilXmlSerializationTest < ActiveRecord::TestCase
  def setup
    @xml = Contact.new.to_xml(:root => 'xml_contact')
  end

  def test_should_serialize_string
    assert_match %r{<name nil="true"/>}, @xml
  end

  def test_should_serialize_integer
    assert %r{<age (.*)/>}.match(@xml)
    attributes = $1
    assert_match %r{nil="true"}, attributes
    assert_match %r{type="integer"}, attributes
  end

  def test_should_serialize_binary
    assert %r{<avatar (.*)/>}.match(@xml)
    attributes = $1
    assert_match %r{type="binary"}, attributes
    assert_match %r{encoding="base64"}, attributes
    assert_match %r{nil="true"}, attributes
  end

  def test_should_serialize_datetime
    assert %r{<created-at (.*)/>}.match(@xml)
    attributes = $1
    assert_match %r{nil="true"}, attributes
    assert_match %r{type="dateTime"}, attributes
  end

  def test_should_serialize_boolean
    assert %r{<awesome (.*)/>}.match(@xml)
    attributes = $1
    assert_match %r{type="boolean"}, attributes
    assert_match %r{nil="true"}, attributes
  end

  def test_should_serialize_yaml
    assert_match %r{<preferences nil=\"true\"/>}, @xml
  end
end

class DatabaseConnectedXmlSerializationTest < ActiveRecord::TestCase
  fixtures :topics, :companies, :accounts, :authors, :posts, :projects

  def test_to_xml
    xml = REXML::Document.new(topics(:first).to_xml(:indent => 0))
    bonus_time_in_current_timezone = topics(:first).bonus_time.xmlschema
    written_on_in_current_timezone = topics(:first).written_on.xmlschema
    last_read_in_current_timezone = topics(:first).last_read.xmlschema

    assert_equal "topic", xml.root.name
    assert_equal "The First Topic" , xml.elements["//title"].text
    assert_equal "David" , xml.elements["//author-name"].text
    assert_match "Have a nice day", xml.elements["//content"].text

    assert_equal "1", xml.elements["//id"].text
    assert_equal "integer" , xml.elements["//id"].attributes['type']

    assert_equal "1", xml.elements["//replies-count"].text
    assert_equal "integer" , xml.elements["//replies-count"].attributes['type']

    assert_equal written_on_in_current_timezone, xml.elements["//written-on"].text
    assert_equal "dateTime" , xml.elements["//written-on"].attributes['type']

    assert_equal "david@loudthinking.com", xml.elements["//author-email-address"].text

    assert_equal nil, xml.elements["//parent-id"].text
    assert_equal "integer", xml.elements["//parent-id"].attributes['type']
    assert_equal "true", xml.elements["//parent-id"].attributes['nil']

    if current_adapter?(:SybaseAdapter)
      assert_equal last_read_in_current_timezone, xml.elements["//last-read"].text
      assert_equal "dateTime" , xml.elements["//last-read"].attributes['type']
    else
      # Oracle enhanced adapter allows to define Date attributes in model class (see topic.rb)
      assert_equal "2004-04-15", xml.elements["//last-read"].text
      assert_equal "date" , xml.elements["//last-read"].attributes['type']
    end

    # Oracle and DB2 don't have true boolean or time-only fields
    unless current_adapter?(:OracleAdapter, :DB2Adapter)
      assert_equal "false", xml.elements["//approved"].text
      assert_equal "boolean" , xml.elements["//approved"].attributes['type']

      assert_equal bonus_time_in_current_timezone, xml.elements["//bonus-time"].text
      assert_equal "dateTime" , xml.elements["//bonus-time"].attributes['type']
    end
  end

  def test_except_option
    xml = topics(:first).to_xml(:indent => 0, :skip_instruct => true, :except => [:title, :replies_count])
    assert_equal "<topic>", xml.first(7)
    assert !xml.include?(%(<title>The First Topic</title>))
    assert xml.include?(%(<author-name>David</author-name>))

    xml = topics(:first).to_xml(:indent => 0, :skip_instruct => true, :except => [:title, :author_name, :replies_count])
    assert !xml.include?(%(<title>The First Topic</title>))
    assert !xml.include?(%(<author-name>David</author-name>))
  end

  # to_xml used to mess with the hash the user provided which
  # caused the builder to be reused.  This meant the document kept
  # getting appended to.

  def test_modules
    projects = MyApplication::Business::Project.all
    xml = projects.to_xml
    root = projects.first.class.to_s.underscore.pluralize.tr('/','_').dasherize
    assert_match "<#{root} type=\"array\">", xml
    assert_match "</#{root}>", xml
  end

  def test_passing_hash_shouldnt_reuse_builder
    options = {:include=>:posts}
    david = authors(:david)
    first_xml_size = david.to_xml(options).size
    second_xml_size = david.to_xml(options).size
    assert_equal first_xml_size, second_xml_size
  end

  def test_include_uses_association_name
    xml = authors(:david).to_xml :include=>:hello_posts, :indent => 0
    assert_match %r{<hello-posts type="array">}, xml
    assert_match %r{<hello-post type="Post">}, xml
    assert_match %r{<hello-post type="StiPost">}, xml
  end

  def test_included_associations_should_skip_types
    xml = authors(:david).to_xml :include=>:hello_posts, :indent => 0, :skip_types => true
    assert_match %r{<hello-posts>}, xml
    assert_match %r{<hello-post>}, xml
    assert_match %r{<hello-post>}, xml
  end

  def test_including_has_many_association
    xml = topics(:first).to_xml(:indent => 0, :skip_instruct => true, :include => :replies, :except => :replies_count)
    assert_equal "<topic>", xml.first(7)
    assert xml.include?(%(<replies type="array"><reply>))
    assert xml.include?(%(<title>The Second Topic of the day</title>))
  end

  def test_including_belongs_to_association
    xml = companies(:first_client).to_xml(:indent => 0, :skip_instruct => true, :include => :firm)
    assert !xml.include?("<firm>")

    xml = companies(:second_client).to_xml(:indent => 0, :skip_instruct => true, :include => :firm)
    assert xml.include?("<firm>")
  end

  def test_including_multiple_associations
    xml = companies(:first_firm).to_xml(:indent => 0, :skip_instruct => true, :include => [ :clients, :account ])
    assert_equal "<firm>", xml.first(6)
    assert xml.include?(%(<account>))
    assert xml.include?(%(<clients type="array"><client>))
  end

  def test_including_association_with_options
    xml = companies(:first_firm).to_xml(
      :indent  => 0, :skip_instruct => true,
      :include => { :clients => { :only => :name } }
    )

    assert_equal "<firm>", xml.first(6)
    assert xml.include?(%(<client><name>Summit</name></client>))
    assert xml.include?(%(<clients type="array"><client>))
  end

  def test_methods_are_called_on_object
    xml = authors(:david).to_xml :methods => :label, :indent => 0
    assert_match %r{<label>.*</label>}, xml
  end

  def test_should_not_call_methods_on_associations_that_dont_respond
    xml = authors(:david).to_xml :include=>:hello_posts, :methods => :label, :indent => 2
    assert !authors(:david).hello_posts.first.respond_to?(:label)
    assert_match %r{^  <label>.*</label>}, xml
    assert_no_match %r{^      <label>}, xml
  end

  def test_procs_are_called_on_object
    proc = Proc.new { |options| options[:builder].tag!('nationality', 'Danish') }
    xml = authors(:david).to_xml(:procs => [ proc ])
    assert_match %r{<nationality>Danish</nationality>}, xml
  end

  def test_dual_arity_procs_are_called_on_object
    proc = Proc.new { |options, record| options[:builder].tag!('name-reverse', record.name.reverse) }
    xml = authors(:david).to_xml(:procs => [ proc ])
    assert_match %r{<name-reverse>divaD</name-reverse>}, xml
  end

  def test_top_level_procs_arent_applied_to_associations
    author_proc = Proc.new { |options| options[:builder].tag!('nationality', 'Danish') }
    xml = authors(:david).to_xml(:procs => [ author_proc ], :include => :posts, :indent => 2)

    assert_match %r{^  <nationality>Danish</nationality>}, xml
    assert_no_match %r{^ {6}<nationality>Danish</nationality>}, xml
  end

  def test_procs_on_included_associations_are_called
    posts_proc = Proc.new { |options| options[:builder].tag!('copyright', 'DHH') }
    xml = authors(:david).to_xml(
      :indent => 2,
      :include => {
        :posts => { :procs => [ posts_proc ] }
      }
    )

    assert_no_match %r{^  <copyright>DHH</copyright>}, xml
    assert_match %r{^ {6}<copyright>DHH</copyright>}, xml
  end

  def test_should_include_empty_has_many_as_empty_array
    authors(:david).posts.delete_all
    xml = authors(:david).to_xml :include=>:posts, :indent => 2

    assert_equal [], Hash.from_xml(xml)['author']['posts']
    assert_match %r{^  <posts type="array"/>}, xml
  end

  def test_should_has_many_array_elements_should_include_type_when_different_from_guessed_value
    xml = authors(:david).to_xml :include=>:posts_with_comments, :indent => 2

    assert Hash.from_xml(xml)
    assert_match %r{^  <posts-with-comments type="array">}, xml
    assert_match %r{^    <posts-with-comment type="Post">}, xml
    assert_match %r{^    <posts-with-comment type="StiPost">}, xml

    types = Hash.from_xml(xml)['author']['posts_with_comments'].collect {|t| t['type'] }
    assert types.include?('SpecialPost')
    assert types.include?('Post')
    assert types.include?('StiPost')
  end

  def test_should_produce_xml_for_methods_returning_array
    xml = authors(:david).to_xml(:methods => :social)
    array = Hash.from_xml(xml)['author']['social']
    assert_equal 2, array.size
    assert array.include? 'twitter'
    assert array.include? 'github'
  end

  def test_should_support_aliased_attributes
    xml = Author.select("name as firstname").to_xml
    array = Hash.from_xml(xml)['authors']
    assert_equal array.size, array.select { |author| author.has_key? 'firstname' }.size
  end

  def test_array_to_xml_including_has_many_association
    xml = [ topics(:first), topics(:second) ].to_xml(:indent => 0, :skip_instruct => true, :include => :replies)
    assert xml.include?(%(<replies type="array"><reply>))
  end

  def test_array_to_xml_including_methods
    xml = [ topics(:first), topics(:second) ].to_xml(:indent => 0, :skip_instruct => true, :methods => [ :topic_id ])
    assert xml.include?(%(<topic-id type="integer">#{topics(:first).topic_id}</topic-id>)), xml
    assert xml.include?(%(<topic-id type="integer">#{topics(:second).topic_id}</topic-id>)), xml
  end

  def test_array_to_xml_including_has_one_association
    xml = [ companies(:first_firm), companies(:rails_core) ].to_xml(:indent => 0, :skip_instruct => true, :include => :account)
    assert xml.include?(companies(:first_firm).account.to_xml(:indent => 0, :skip_instruct => true))
    assert xml.include?(companies(:rails_core).account.to_xml(:indent => 0, :skip_instruct => true))
  end

  def test_array_to_xml_including_belongs_to_association
    xml = [ companies(:first_client), companies(:second_client), companies(:another_client) ].to_xml(:indent => 0, :skip_instruct => true, :include => :firm)
    assert xml.include?(companies(:first_client).to_xml(:indent => 0, :skip_instruct => true))
    assert xml.include?(companies(:second_client).firm.to_xml(:indent => 0, :skip_instruct => true))
    assert xml.include?(companies(:another_client).firm.to_xml(:indent => 0, :skip_instruct => true))
  end
end