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# encoding: utf-8
require 'cases/helper'
require 'models/topic'
require 'models/reply'
require 'models/custom_reader'
require 'models/automobile'
require 'active_support/json'
require 'active_support/xml_mini'
class ValidationsTest < ActiveModel::TestCase
class CustomStrictValidationException < StandardError; end
def setup
Topic._validators.clear
end
# 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
def teardown
Topic.reset_callbacks(:validate)
end
def test_single_field_validation
r = Reply.new
r.title = "There's no content!"
assert r.invalid?, "A reply without content shouldn't be savable"
assert r.after_validation_performed, "after_validation callback should be called"
r.content = "Messa content!"
assert r.valid?, "A reply with content should be savable"
assert r.after_validation_performed, "after_validation callback should be called"
end
def test_single_attr_validation_and_error_msg
r = Reply.new
r.title = "There's no content!"
assert r.invalid?
assert r.errors[:content].any?, "A reply without content should mark that attribute as invalid"
assert_equal ["is 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.invalid?
assert r.errors[:title].any?, "A reply without title should mark that attribute as invalid"
assert_equal ["is Empty"], r.errors["title"], "A reply without title should contain an error"
assert r.errors[:content].any?, "A reply without content should mark that attribute as invalid"
assert_equal ["is 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.valid?
errors = r.errors.collect {|attr, messages| [attr.to_s, messages]}
assert errors.include?(["title", "is Empty"])
assert errors.include?(["content", "is Empty"])
end
def test_multiple_errors_per_attr_iteration_with_full_error_composition
r = Reply.new
r.title = ""
r.content = ""
r.valid?
errors = r.errors.to_a
assert_equal "Content is Empty", errors[0]
assert_equal "Title is Empty", errors[1]
assert_equal 2, r.errors.count
end
def test_errors_on_nested_attributes_expands_name
t = Topic.new
t.errors["replies.name"] << "can't be blank"
assert_equal ["Replies name can't be blank"], t.errors.full_messages
end
def test_errors_on_base
r = Reply.new
r.content = "Mismatch"
r.valid?
r.errors.add(:base, "Reply is not dignifying")
errors = r.errors.to_a.inject([]) { |result, error| result + [error] }
assert_equal ["Reply is not dignifying"], r.errors[:base]
assert errors.include?("Title is Empty")
assert errors.include?("Reply is not dignifying")
assert_equal 2, r.errors.count
end
def test_errors_on_base_with_symbol_message
r = Reply.new
r.content = "Mismatch"
r.valid?
r.errors.add(:base, :invalid)
errors = r.errors.to_a.inject([]) { |result, error| result + [error] }
assert_equal ["is invalid"], r.errors[:base]
assert errors.include?("Title is Empty")
assert errors.include?("is invalid")
assert_equal 2, r.errors.count
end
def test_errors_empty_after_errors_on_check
t = Topic.new
assert t.errors[:id].empty?
assert t.errors.empty?
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.invalid?
assert_equal 4, hits
assert_equal %w(gotcha gotcha), t.errors[:title]
assert_equal %w(gotcha gotcha), t.errors[:content]
end
def test_validates_each_custom_reader
hits = 0
CustomReader.validates_each(:title, :content, [:title, :content]) do |record, attr|
record.errors.add attr, 'gotcha'
hits += 1
end
t = CustomReader.new("title" => "valid", "content" => "whatever")
assert t.invalid?
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 { errors.add("title", "will never be valid") }
t = Topic.new("title" => "Title", "content" => "whatever")
assert t.invalid?
assert t.errors[:title].any?
assert_equal ["will never be valid"], t.errors["title"]
end
def test_validate_block_with_params
Topic.validate { |topic| topic.errors.add("title", "will never be valid") }
t = Topic.new("title" => "Title", "content" => "whatever")
assert t.invalid?
assert t.errors[:title].any?
assert_equal ["will never be valid"], t.errors["title"]
end
def test_invalid_validator
Topic.validate :i_dont_exist
assert_raises(NoMethodError) do
t = Topic.new
t.valid?
end
end
def test_errors_conversions
Topic.validates_presence_of %w(title content)
t = Topic.new
assert t.invalid?
xml = t.errors.to_xml
assert_match %r{<errors>}, xml
assert_match %r{<error>Title can't be blank</error>}, xml
assert_match %r{<error>Content can't be blank</error>}, xml
hash = {}
hash[:title] = ["can't be blank"]
hash[:content] = ["can't be blank"]
assert_equal t.errors.to_json, hash.to_json
end
def test_validation_order
Topic.validates_presence_of :title
Topic.validates_length_of :title, minimum: 2
t = Topic.new("title" => "")
assert t.invalid?
assert_equal "can't be blank", t.errors["title"].first
Topic.validates_presence_of :title, :author_name
Topic.validate {errors.add('author_email_address', 'will never be valid')}
Topic.validates_length_of :title, :content, minimum: 2
t = Topic.new title: ''
assert t.invalid?
assert_equal :title, key = t.errors.keys[0]
assert_equal "can't be blank", t.errors[key][0]
assert_equal 'is too short (minimum is 2 characters)', t.errors[key][1]
assert_equal :author_name, key = t.errors.keys[1]
assert_equal "can't be blank", t.errors[key][0]
assert_equal :author_email_address, key = t.errors.keys[2]
assert_equal 'will never be valid', t.errors[key][0]
assert_equal :content, key = t.errors.keys[3]
assert_equal 'is too short (minimum is 2 characters)', t.errors[key][0]
end
def test_validation_with_if_and_on
Topic.validates_presence_of :title, if: Proc.new{|x| x.author_name = "bad"; true }, on: :update
t = Topic.new(title: "")
# If block should not fire
assert t.valid?
assert t.author_name.nil?
# If block should fire
assert t.invalid?(:update)
assert t.author_name == "bad"
end
def test_invalid_should_be_the_opposite_of_valid
Topic.validates_presence_of :title
t = Topic.new
assert t.invalid?
assert t.errors[:title].any?
t.title = 'Things are going to change'
assert !t.invalid?
end
def test_validation_with_message_as_proc
Topic.validates_presence_of(:title, message: proc { "no blanks here".upcase })
t = Topic.new
assert t.invalid?
assert_equal ["NO BLANKS HERE"], t.errors[:title]
end
def test_list_of_validators_for_model
Topic.validates_presence_of :title
Topic.validates_length_of :title, minimum: 2
assert_equal 2, Topic.validators.count
assert_equal [:presence, :length], Topic.validators.map(&:kind)
end
def test_list_of_validators_on_an_attribute
Topic.validates_presence_of :title, :content
Topic.validates_length_of :title, minimum: 2
assert_equal 2, Topic.validators_on(:title).count
assert_equal [:presence, :length], Topic.validators_on(:title).map(&:kind)
assert_equal 1, Topic.validators_on(:content).count
assert_equal [:presence], Topic.validators_on(:content).map(&:kind)
end
def test_accessing_instance_of_validator_on_an_attribute
Topic.validates_length_of :title, minimum: 10
assert_equal 10, Topic.validators_on(:title).first.options[:minimum]
end
def test_list_of_validators_on_multiple_attributes
Topic.validates :title, length: { minimum: 10 }
Topic.validates :author_name, presence: true, format: /a/
validators = Topic.validators_on(:title, :author_name)
assert_equal [
ActiveModel::Validations::FormatValidator,
ActiveModel::Validations::LengthValidator,
ActiveModel::Validations::PresenceValidator
], validators.map { |v| v.class }.sort_by { |c| c.to_s }
end
def test_list_of_validators_will_be_empty_when_empty
Topic.validates :title, length: { minimum: 10 }
assert_equal [], Topic.validators_on(:author_name)
end
def test_validations_on_the_instance_level
auto = Automobile.new
assert auto.invalid?
assert_equal 2, auto.errors.size
auto.make = 'Toyota'
auto.model = 'Corolla'
assert auto.valid?
end
def test_strict_validation_in_validates
Topic.validates :title, strict: true, presence: true
assert_raises ActiveModel::StrictValidationFailed do
Topic.new.valid?
end
end
def test_strict_validation_not_fails
Topic.validates :title, strict: true, presence: true
assert Topic.new(title: "hello").valid?
end
def test_strict_validation_particular_validator
Topic.validates :title, presence: { strict: true }
assert_raises ActiveModel::StrictValidationFailed do
Topic.new.valid?
end
end
def test_strict_validation_in_custom_validator_helper
Topic.validates_presence_of :title, strict: true
assert_raises ActiveModel::StrictValidationFailed do
Topic.new.valid?
end
end
def test_strict_validation_custom_exception
Topic.validates_presence_of :title, strict: CustomStrictValidationException
assert_raises CustomStrictValidationException do
Topic.new.valid?
end
end
def test_validates_with_bang
Topic.validates! :title, presence: true
assert_raises ActiveModel::StrictValidationFailed do
Topic.new.valid?
end
end
def test_validates_with_false_hash_value
Topic.validates :title, presence: false
assert Topic.new.valid?
end
def test_strict_validation_error_message
Topic.validates :title, strict: true, presence: true
exception = assert_raises(ActiveModel::StrictValidationFailed) do
Topic.new.valid?
end
assert_equal "Title can't be blank", exception.message
end
def test_does_not_modify_options_argument
options = { presence: true }
Topic.validates :title, options
assert_equal({ presence: true }, options)
end
def test_dup_validity_is_independent
Topic.validates_presence_of :title
topic = Topic.new("title" => "Literature")
topic.valid?
duped = topic.dup
duped.title = nil
assert duped.invalid?
topic.title = nil
duped.title = 'Mathematics'
assert topic.invalid?
assert duped.valid?
end
# validator test:
def test_setup_is_deprecated_but_still_receives_klass # TODO: remove me in 4.2.
validator_class = Class.new(ActiveModel::Validator) do
def setup(klass)
@old_klass = klass
end
def validate(*)
@old_klass == Topic or raise "#setup didn't work"
end
end
assert_deprecated do
Topic.validates_with validator_class
end
t = Topic.new
t.valid?
end
end
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