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# -*- coding: utf-8 -*-

require "cases/helper"
require 'models/person'

class I18nValidationTest < ActiveModel::TestCase

  def setup
    Person.clear_validators!
    @person = Person.new

    @old_load_path, @old_backend = I18n.load_path.dup, I18n.backend
    I18n.load_path.clear
    I18n.backend = I18n::Backend::Simple.new
    I18n.backend.store_translations('en', errors: { messages: { custom: nil } })
  end

  def teardown
    Person.clear_validators!
    I18n.load_path.replace @old_load_path
    I18n.backend = @old_backend
  end

  def test_full_message_encoding
    I18n.backend.store_translations('en', errors: {
      messages: { too_short: '猫舌' } })
    Person.validates_length_of :title, within: 3..5
    @person.valid?
    assert_equal ['Title 猫舌'], @person.errors.full_messages
  end

  def test_errors_full_messages_translates_human_attribute_name_for_model_attributes
    @person.errors.add(:name, 'not found')
    Person.expects(:human_attribute_name).with(:name, default: 'Name').returns("Person's name")
    assert_equal ["Person's name not found"], @person.errors.full_messages
  end

  def test_errors_full_messages_uses_format
    I18n.backend.store_translations('en', errors: { format: "Field %{attribute} %{message}" })
    @person.errors.add('name', 'empty')
    assert_equal ["Field Name empty"], @person.errors.full_messages
  end

  # ActiveModel::Validations

  # A set of common cases for ActiveModel::Validations message generation that
  # are used to generate tests to keep things DRY
  #
  COMMON_CASES = [
  # [ case,                                validation_options,            generate_message_options]
    [ "given no options",                  {},                            {}],
    [ "given custom message",              { message: "custom" },         { message: "custom" }],
    [ "given if condition",                { if:                          lambda { true }},  {}],
    [ "given unless condition",            { unless:                      lambda { false }}, {}],
    [ "given option that is not reserved", { format: "jpg" },             { format: "jpg" }]
  ]

  # validates_confirmation_of w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_confirmation_of on generated message #{name}" do
      Person.validates_confirmation_of :title, validation_options
      @person.title_confirmation = 'foo'
      @person.errors.expects(:generate_message).with(:title_confirmation, :confirmation, generate_message_options.merge(attribute: 'Title'))
      @person.valid?
    end
  end

  # validates_acceptance_of w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_acceptance_of on generated message #{name}" do
      Person.validates_acceptance_of :title, validation_options.merge(allow_nil: false)
      @person.errors.expects(:generate_message).with(:title, :accepted, generate_message_options)
      @person.valid?
    end
  end

  # validates_presence_of w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_presence_of on generated message #{name}" do
      Person.validates_presence_of :title, validation_options
      @person.errors.expects(:generate_message).with(:title, :blank, generate_message_options)
      @person.valid?
    end
  end

  # validates_length_of :within too short w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_length_of for :withing on generated message when too short #{name}" do
      Person.validates_length_of :title, validation_options.merge(within: 3..5)
      @person.errors.expects(:generate_message).with(:title, :too_short, generate_message_options.merge(count: 3))
      @person.valid?
    end
  end

  # validates_length_of :within too long w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_length_of for :too_long generated message #{name}" do
      Person.validates_length_of :title, validation_options.merge(within: 3..5)
      @person.title = 'this title is too long'
      @person.errors.expects(:generate_message).with(:title, :too_long, generate_message_options.merge(count: 5))
      @person.valid?
    end
  end

  # validates_length_of :is w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_length_of for :is on generated message #{name}" do
      Person.validates_length_of :title, validation_options.merge(is: 5)
      @person.errors.expects(:generate_message).with(:title, :wrong_length, generate_message_options.merge(count: 5))
      @person.valid?
    end
  end

  # validates_format_of w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_format_of on generated message #{name}" do
      Person.validates_format_of :title, validation_options.merge(with: /\A[1-9][0-9]*\z/)
      @person.title = '72x'
      @person.errors.expects(:generate_message).with(:title, :invalid, generate_message_options.merge(value: '72x'))
      @person.valid?
    end
  end

  # validates_inclusion_of w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_inclusion_of on generated message #{name}" do
      Person.validates_inclusion_of :title, validation_options.merge(in: %w(a b c))
      @person.title = 'z'
      @person.errors.expects(:generate_message).with(:title, :inclusion, generate_message_options.merge(value: 'z'))
      @person.valid?
    end
  end

  # validates_inclusion_of using :within w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_inclusion_of using :within on generated message #{name}" do
      Person.validates_inclusion_of :title, validation_options.merge(within: %w(a b c))
      @person.title = 'z'
      @person.errors.expects(:generate_message).with(:title, :inclusion, generate_message_options.merge(value: 'z'))
      @person.valid?
    end
  end

  # validates_exclusion_of w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_exclusion_of generated message #{name}" do
      Person.validates_exclusion_of :title, validation_options.merge(in: %w(a b c))
      @person.title = 'a'
      @person.errors.expects(:generate_message).with(:title, :exclusion, generate_message_options.merge(value: 'a'))
      @person.valid?
    end
  end

  # validates_exclusion_of using :within w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_exclusion_of using :within generated message #{name}" do
      Person.validates_exclusion_of :title, validation_options.merge(within: %w(a b c))
      @person.title = 'a'
      @person.errors.expects(:generate_message).with(:title, :exclusion, generate_message_options.merge(value: 'a'))
      @person.valid?
    end
  end

  # validates_numericality_of without :only_integer w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_numericality_of generated message #{name}" do
      Person.validates_numericality_of :title, validation_options
      @person.title = 'a'
      @person.errors.expects(:generate_message).with(:title, :not_a_number, generate_message_options.merge(value: 'a'))
      @person.valid?
    end
  end

  # validates_numericality_of with :only_integer w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_numericality_of for :only_integer on generated message #{name}" do
      Person.validates_numericality_of :title, validation_options.merge(only_integer: true)
      @person.title = '0.0'
      @person.errors.expects(:generate_message).with(:title, :not_an_integer, generate_message_options.merge(value: '0.0'))
      @person.valid?
    end
  end

  # validates_numericality_of :odd w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_numericality_of for :odd on generated message #{name}" do
      Person.validates_numericality_of :title, validation_options.merge(only_integer: true, odd: true)
      @person.title = 0
      @person.errors.expects(:generate_message).with(:title, :odd, generate_message_options.merge(value: 0))
      @person.valid?
    end
  end

  # validates_numericality_of :less_than w/ mocha

  COMMON_CASES.each do |name, validation_options, generate_message_options|
    test "validates_numericality_of for :less_than on generated message #{name}" do
      Person.validates_numericality_of :title, validation_options.merge(only_integer: true, less_than: 0)
      @person.title = 1
      @person.errors.expects(:generate_message).with(:title, :less_than, generate_message_options.merge(value: 1, count: 0))
      @person.valid?
    end
  end


  # To make things DRY this macro is defined to define 3 tests for every validation case.
  def self.set_expectations_for_validation(validation, error_type, &block_that_sets_validation)
    if error_type == :confirmation
      attribute = :title_confirmation
    else
      attribute = :title
    end
    # test "validates_confirmation_of finds custom model key translation when blank"
    test "#{validation} finds custom model key translation when #{error_type}" do
      I18n.backend.store_translations 'en', activemodel: { errors: { models: { person: { attributes: { attribute => { error_type => 'custom message' } } } } } }
      I18n.backend.store_translations 'en', errors: { messages: { error_type => 'global message'}}

      yield(@person, {})
      @person.valid?
      assert_equal ['custom message'], @person.errors[attribute]
    end

    # test "validates_confirmation_of finds custom model key translation with interpolation when blank"
    test "#{validation} finds custom model key translation with interpolation when #{error_type}" do
      I18n.backend.store_translations 'en', activemodel: { errors: { models: { person: { attributes: { attribute => { error_type => 'custom message with %{extra}' } } } } } }
      I18n.backend.store_translations 'en', errors: { messages: {error_type => 'global message'} }

      yield(@person, { extra: "extra information" })
      @person.valid?
      assert_equal ['custom message with extra information'], @person.errors[attribute]
    end

    # test "validates_confirmation_of finds global default key translation when blank"
    test "#{validation} finds global default key translation when #{error_type}" do
      I18n.backend.store_translations 'en', errors: { messages: {error_type => 'global message'} }

      yield(@person, {})
      @person.valid?
      assert_equal ['global message'], @person.errors[attribute]
    end
  end

  # validates_confirmation_of w/o mocha

  set_expectations_for_validation "validates_confirmation_of", :confirmation do |person, options_to_merge|
    Person.validates_confirmation_of :title, options_to_merge
    person.title_confirmation = 'foo'
  end

  # validates_acceptance_of w/o mocha

  set_expectations_for_validation "validates_acceptance_of", :accepted do |person, options_to_merge|
    Person.validates_acceptance_of :title, options_to_merge.merge(allow_nil: false)
  end

  # validates_presence_of w/o mocha

  set_expectations_for_validation "validates_presence_of", :blank do |person, options_to_merge|
    Person.validates_presence_of :title, options_to_merge
  end

  # validates_length_of :within w/o mocha

  set_expectations_for_validation "validates_length_of", :too_short do |person, options_to_merge|
    Person.validates_length_of :title, options_to_merge.merge(within: 3..5)
  end

  set_expectations_for_validation "validates_length_of", :too_long do |person, options_to_merge|
    Person.validates_length_of :title, options_to_merge.merge(within: 3..5)
    person.title = "too long"
  end

  # validates_length_of :is w/o mocha

  set_expectations_for_validation "validates_length_of", :wrong_length do |person, options_to_merge|
    Person.validates_length_of :title, options_to_merge.merge(is: 5)
  end

  # validates_format_of w/o mocha

  set_expectations_for_validation "validates_format_of", :invalid do |person, options_to_merge|
    Person.validates_format_of :title, options_to_merge.merge(with: /\A[1-9][0-9]*\z/)
  end

  # validates_inclusion_of w/o mocha

  set_expectations_for_validation "validates_inclusion_of", :inclusion do |person, options_to_merge|
    Person.validates_inclusion_of :title, options_to_merge.merge(in: %w(a b c))
  end

  # validates_exclusion_of w/o mocha

  set_expectations_for_validation "validates_exclusion_of", :exclusion do |person, options_to_merge|
    Person.validates_exclusion_of :title, options_to_merge.merge(in: %w(a b c))
    person.title = 'a'
  end

  # validates_numericality_of without :only_integer w/o mocha

  set_expectations_for_validation "validates_numericality_of", :not_a_number do |person, options_to_merge|
    Person.validates_numericality_of :title, options_to_merge
    person.title = 'a'
  end

  # validates_numericality_of with :only_integer w/o mocha

  set_expectations_for_validation "validates_numericality_of", :not_an_integer do |person, options_to_merge|
    Person.validates_numericality_of :title, options_to_merge.merge(only_integer: true)
    person.title = '1.0'
  end

  # validates_numericality_of :odd w/o mocha

  set_expectations_for_validation "validates_numericality_of", :odd do |person, options_to_merge|
    Person.validates_numericality_of :title, options_to_merge.merge(only_integer: true, odd: true)
    person.title = 0
  end

  # validates_numericality_of :less_than w/o mocha

  set_expectations_for_validation "validates_numericality_of", :less_than do |person, options_to_merge|
    Person.validates_numericality_of :title, options_to_merge.merge(only_integer: true, less_than: 0)
    person.title = 1
  end

  # test with validates_with

  def test_validations_with_message_symbol_must_translate
    I18n.backend.store_translations 'en', errors: { messages: { custom_error: "I am a custom error" } }
    Person.validates_presence_of :title, message: :custom_error
    @person.title = nil
    @person.valid?
    assert_equal ["I am a custom error"], @person.errors[:title]
  end

  def test_validates_with_message_symbol_must_translate_per_attribute
    I18n.backend.store_translations 'en', activemodel: { errors: { models: { person: { attributes: { title: { custom_error: "I am a custom error" } } } } } }
    Person.validates_presence_of :title, message: :custom_error
    @person.title = nil
    @person.valid?
    assert_equal ["I am a custom error"], @person.errors[:title]
  end

  def test_validates_with_message_symbol_must_translate_per_model
    I18n.backend.store_translations 'en', activemodel: { errors: { models: { person: { custom_error: "I am a custom error" } } } }
    Person.validates_presence_of :title, message: :custom_error
    @person.title = nil
    @person.valid?
    assert_equal ["I am a custom error"], @person.errors[:title]
  end

  def test_validates_with_message_string
    Person.validates_presence_of :title, message: "I am a custom error"
    @person.title = nil
    @person.valid?
    assert_equal ["I am a custom error"], @person.errors[:title]
  end
end