validations_test.rb

# encoding: utf-8
require 'cases/helper'
require 'cases/tests_database'

require 'models/topic'
require 'models/reply'
require 'models/developer'

class ValidationsTest < ActiveModel::TestCase
  include ActiveModel::TestsDatabase
  include ActiveModel::ValidationsRepairHelper

  # Most of the tests mess with the validations of Topic, so lets repair it all the time.
  # Other classes we mess with will be dealt with in the specific tests
  repair_validations(Topic)

  def test_single_field_validation
    r = Reply.new
    r.title = "There's no content!"
    assert !r.valid?, "A reply without content shouldn't be saveable"

    r.content = "Messa content!"
    assert r.valid?, "A reply with content should be saveable"
  end

  def test_single_attr_validation_and_error_msg
    r = Reply.new
    r.title = "There's no content!"
    assert !r.valid?
    assert r.errors.invalid?("content"), "A reply without content should mark that attribute as invalid"
    assert_equal ["Empty"], r.errors["content"], "A reply without content should contain an error"
    assert_equal 1, r.errors.count
  end

  def test_double_attr_validation_and_error_msg
    r = Reply.new
    assert !r.valid?

    assert r.errors.invalid?("title"), "A reply without title should mark that attribute as invalid"
    assert_equal ["Empty"], r.errors["title"], "A reply without title should contain an error"

    assert r.errors.invalid?("content"), "A reply without content should mark that attribute as invalid"
    assert_equal ["Empty"], r.errors["content"], "A reply without content should contain an error"

    assert_equal 2, r.errors.count
  end

  def test_single_error_per_attr_iteration
    r = Reply.new
    r.save

    errors = []
    r.errors.each {|attr, messages| errors << [attr.to_s, messages] }

    assert errors.include?(["title", "Empty"])
    assert errors.include?(["content", "Empty"])
  end

  def test_multiple_errors_per_attr_iteration_with_full_error_composition
    r = Reply.new
    r.title   = "Wrong Create"
    r.content = "Mismatch"
    r.save

    errors = r.errors.to_a

    assert_equal "Title is Wrong Create", errors[0]
    assert_equal "Title is Content Mismatch", errors[1]
    assert_equal 2, r.errors.count
  end

  def test_errors_on_base
    r = Reply.new
    r.content = "Mismatch"
    r.save
    r.errors.add_to_base "Reply is not dignifying"

    errors = []
    r.errors.each_full { |error| errors << error }

    assert_equal ["Reply is not dignifying"], r.errors[:base]

    assert errors.include?("Title Empty")
    assert errors.include?("Reply is not dignifying")
    assert_equal 2, r.errors.count
  end

  def test_validates_each
    hits = 0
    Topic.validates_each(:title, :content, [:title, :content]) do |record, attr|
      record.errors.add attr, 'gotcha'
      hits += 1
    end
    t = Topic.new("title" => "valid", "content" => "whatever")
    assert !t.save
    assert_equal 4, hits
    assert_equal %w(gotcha gotcha), t.errors[:title]
    assert_equal %w(gotcha gotcha), t.errors[:content]
  end

  def test_validate_block
    Topic.validate { |topic| topic.errors.add("title", "will never be valid") }
    t = Topic.create("title" => "Title", "content" => "whatever")
    assert !t.valid?
    assert t.errors[:title].any?
    assert_equal ["will never be valid"], t.errors["title"]
  end

  def test_invalid_validator
    Topic.validate 3
    assert_raise(ArgumentError) { t = Topic.create }
  end

  def test_errors_to_xml
    r = Reply.new :title => "Wrong Create"
    assert !r.valid?
    xml = r.errors.to_xml(:skip_instruct => true)
    assert_equal "<errors>", xml.first(8)
    assert xml.include?("<error>Title is Wrong Create</error>")
    assert xml.include?("<error>Content Empty</error>")
  end

  def test_validation_order
     Topic.validates_presence_of :title
     Topic.validates_length_of :title, :minimum => 2

     t = Topic.new("title" => "")
     assert !t.valid?
     assert_equal "can't be blank", t.errors["title"].first
  end

  def test_invalid_should_be_the_opposite_of_valid
    Topic.validates_presence_of :title

    t = Topic.new
    assert t.invalid?
    assert t.errors.invalid?(:title)

    t.title = 'Things are going to change'
    assert !t.invalid?
  end

  def test_deprecated_error_messages_on
    Topic.validates_presence_of :title

    t = Topic.new
    assert t.invalid?

    [:title, "title"].each do |attribute|
      assert_deprecated { assert_equal "can't be blank", t.errors.on(attribute) }
    end

    Topic.validates_each(:title) do |record, attribute|
      record.errors[attribute] << "invalid"
    end

    assert t.invalid?

    [:title, "title"].each do |attribute|
      assert_deprecated do
        assert t.errors.on(attribute).include?("invalid")
        assert t.errors.on(attribute).include?("can't be blank")
      end
    end
  end
end