# frozen_string_literal: true
require "cases/helper"
require "yaml"
class ErrorsTest < ActiveModel::TestCase
class Person
extend ActiveModel::Naming
def initialize
@errors = ActiveModel::Errors.new(self)
end
attr_accessor :name, :age, :gender, :city
attr_reader :errors
def validate!
errors.add(:name, :blank, message: "cannot be nil") if name == nil
end
def read_attribute_for_validation(attr)
send(attr)
end
def self.human_attribute_name(attr, options = {})
attr
end
def self.lookup_ancestors
[self]
end
end
def test_delete
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :blank)
errors.delete("name")
assert_empty errors[:name]
end
def test_include?
errors = ActiveModel::Errors.new(Person.new)
assert_deprecated { errors[:foo] << "omg" }
assert_includes errors, :foo, "errors should include :foo"
assert_includes errors, "foo", "errors should include 'foo' as :foo"
end
def test_each_when_arity_is_negative
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :blank)
errors.add(:gender, :blank)
assert_equal([:name, :gender], errors.map(&:attribute))
end
def test_any?
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name)
assert_not_deprecated {
assert errors.any?, "any? should return true"
}
assert_not_deprecated {
assert errors.any? { |_| true }, "any? should return true"
}
end
def test_dup
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name)
errors_dup = errors.dup
assert_not_same errors_dup.errors, errors.errors
end
def test_has_key?
errors = ActiveModel::Errors.new(Person.new)
errors.add(:foo, "omg")
assert_equal true, errors.has_key?(:foo), "errors should have key :foo"
assert_equal true, errors.has_key?("foo"), "errors should have key 'foo' as :foo"
end
def test_has_no_key
errors = ActiveModel::Errors.new(Person.new)
assert_equal false, errors.has_key?(:name), "errors should not have key :name"
end
def test_key?
errors = ActiveModel::Errors.new(Person.new)
errors.add(:foo, "omg")
assert_equal true, errors.key?(:foo), "errors should have key :foo"
assert_equal true, errors.key?("foo"), "errors should have key 'foo' as :foo"
end
def test_no_key
errors = ActiveModel::Errors.new(Person.new)
assert_equal false, errors.key?(:name), "errors should not have key :name"
end
test "clear errors" do
person = Person.new
person.validate!
assert_equal 1, person.errors.count
person.errors.clear
assert_empty person.errors
end
test "error access is indifferent" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, "omg")
assert_equal ["omg"], errors["name"]
end
test "values returns an array of messages" do
errors = ActiveModel::Errors.new(Person.new)
assert_deprecated { errors.messages[:foo] = "omg" }
assert_deprecated { errors.messages[:baz] = "zomg" }
assert_deprecated do
assert_equal ["omg", "zomg"], errors.values
end
end
test "[]= overrides values" do
errors = ActiveModel::Errors.new(self)
assert_deprecated { errors.messages[:foo] = "omg" }
assert_deprecated { errors.messages[:foo] = "zomg" }
assert_equal ["zomg"], errors[:foo]
end
test "values returns an empty array after try to get a message only" do
errors = ActiveModel::Errors.new(Person.new)
errors.messages[:foo]
errors.messages[:baz]
assert_deprecated do
assert_equal [], errors.values
end
end
test "keys returns the error keys" do
errors = ActiveModel::Errors.new(Person.new)
assert_deprecated { errors.messages[:foo] << "omg" }
assert_deprecated { errors.messages[:baz] << "zomg" }
assert_deprecated do
assert_equal [:foo, :baz], errors.keys
end
end
test "keys returns an empty array after try to get a message only" do
errors = ActiveModel::Errors.new(Person.new)
errors.messages[:foo]
errors.messages[:baz]
assert_deprecated do
assert_equal [], errors.keys
end
end
test "detecting whether there are errors with empty?, blank?, include?" do
person = Person.new
person.errors[:foo]
assert_empty person.errors
assert_predicate person.errors, :blank?
assert_not_includes person.errors, :foo
end
test "include? does not add a key to messages hash" do
person = Person.new
person.errors.include?(:foo)
assert_not person.errors.messages.key?(:foo)
end
test "adding errors using conditionals with Person#validate!" do
person = Person.new
person.validate!
assert_equal ["name cannot be nil"], person.errors.full_messages
assert_equal ["cannot be nil"], person.errors[:name]
end
test "add an error message on a specific attribute (deprecated)" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_equal ["cannot be blank"], person.errors[:name]
end
test "add an error message on a specific attribute with a defined type (deprecated)" do
person = Person.new
person.errors.add(:name, :blank, message: "cannot be blank")
assert_equal ["cannot be blank"], person.errors[:name]
end
test "add an error with a symbol (deprecated)" do
person = Person.new
person.errors.add(:name, :blank)
message = person.errors.generate_message(:name, :blank)
assert_equal [message], person.errors[:name]
end
test "add an error with a proc (deprecated)" do
person = Person.new
message = Proc.new { "cannot be blank" }
person.errors.add(:name, message)
assert_equal ["cannot be blank"], person.errors[:name]
end
test "add creates an error object and returns it" do
person = Person.new
error = person.errors.add(:name, :blank)
assert_equal :name, error.attribute
assert_equal :blank, error.type
assert_equal error, person.errors.objects.first
end
test "add, with type as symbol" do
person = Person.new
person.errors.add(:name, :blank)
assert_equal :blank, person.errors.objects.first.type
assert_equal ["can't be blank"], person.errors[:name]
end
test "add, with type as String" do
msg = "custom msg"
person = Person.new
person.errors.add(:name, msg)
assert_equal [msg], person.errors[:name]
end
test "add, with type as nil" do
person = Person.new
person.errors.add(:name)
assert_equal :invalid, person.errors.objects.first.type
assert_equal ["is invalid"], person.errors[:name]
end
test "add, with type as Proc, which evaluates to String" do
msg = "custom msg"
type = Proc.new { msg }
person = Person.new
person.errors.add(:name, type)
assert_equal [msg], person.errors[:name]
end
test "add, type being Proc, which evaluates to Symbol" do
type = Proc.new { :blank }
person = Person.new
person.errors.add(:name, type)
assert_equal :blank, person.errors.objects.first.type
assert_equal ["can't be blank"], person.errors[:name]
end
test "initialize options[:message] as Proc, which evaluates to String" do
msg = "custom msg"
type = Proc.new { msg }
person = Person.new
person.errors.add(:name, :blank, message: type)
assert_equal :blank, person.errors.objects.first.type
assert_equal [msg], person.errors[:name]
end
test "add, with options[:message] as Proc, which evaluates to String, where type is nil" do
msg = "custom msg"
type = Proc.new { msg }
person = Person.new
person.errors.add(:name, message: type)
assert_equal :invalid, person.errors.objects.first.type
assert_equal [msg], person.errors[:name]
end
test "added? when attribute was added through a collection" do
person = Person.new
person.errors.add(:"family_members.name", :too_long, count: 25)
assert person.errors.added?(:"family_members.name", :too_long, count: 25)
assert_not person.errors.added?(:"family_members.name", :too_long)
assert_not person.errors.added?(:"family_members.name", :too_long, name: "hello")
end
test "added? ignores callback option" do
person = Person.new
person.errors.add(:name, :too_long, if: -> { true })
assert person.errors.added?(:name, :too_long)
end
test "added? ignores message option" do
person = Person.new
person.errors.add(:name, :too_long, message: proc { "foo" })
assert person.errors.added?(:name, :too_long)
end
test "added? detects indifferent if a specific error was added to the object" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert person.errors.added?(:name, "cannot be blank")
assert person.errors.added?("name", "cannot be blank")
end
test "added? handles symbol message" do
person = Person.new
person.errors.add(:name, :blank)
assert person.errors.added?(:name, :blank)
end
test "added? returns true when string attribute is used with a symbol message" do
person = Person.new
person.errors.add(:name, :blank)
assert person.errors.added?("name", :blank)
end
test "added? handles proc messages" do
person = Person.new
message = Proc.new { "cannot be blank" }
person.errors.add(:name, message)
assert person.errors.added?(:name, message)
end
test "added? defaults message to :invalid" do
person = Person.new
person.errors.add(:name)
assert person.errors.added?(:name)
end
test "added? matches the given message when several errors are present for the same attribute" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:name, "is invalid")
assert person.errors.added?(:name, "cannot be blank")
assert person.errors.added?(:name, "is invalid")
assert_not person.errors.added?(:name, "incorrect")
end
test "added? returns false when no errors are present" do
person = Person.new
assert_not person.errors.added?(:name)
end
test "added? returns false when checking a nonexisting error and other errors are present for the given attribute" do
person = Person.new
person.errors.add(:name, "is invalid")
assert_not person.errors.added?(:name, "cannot be blank")
end
test "added? returns false when checking for an error, but not providing message argument" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_not person.errors.added?(:name)
end
test "added? returns false when checking for an error with an incorrect or missing option" do
person = Person.new
person.errors.add :name, :too_long, count: 25
assert person.errors.added? :name, :too_long, count: 25
assert person.errors.added? :name, "is too long (maximum is 25 characters)"
assert_not person.errors.added? :name, :too_long, count: 24
assert_not person.errors.added? :name, :too_long
assert_not person.errors.added? :name, "is too long"
end
test "added? returns false when checking for an error by symbol and a different error with same message is present" do
I18n.backend.store_translations("en", errors: { attributes: { name: { wrong: "is wrong", used: "is wrong" } } })
person = Person.new
person.errors.add(:name, :wrong)
assert_not person.errors.added?(:name, :used)
assert person.errors.added?(:name, :wrong)
end
test "of_kind? returns false when checking for an error, but not providing message argument" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_not person.errors.of_kind?(:name)
end
test "of_kind? returns false when checking a nonexisting error and other errors are present for the given attribute" do
person = Person.new
person.errors.add(:name, "is invalid")
assert_not person.errors.of_kind?(:name, "cannot be blank")
end
test "of_kind? returns false when no errors are present" do
person = Person.new
assert_not person.errors.of_kind?(:name)
end
test "of_kind? matches the given message when several errors are present for the same attribute" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:name, "is invalid")
assert person.errors.of_kind?(:name, "cannot be blank")
assert person.errors.of_kind?(:name, "is invalid")
assert_not person.errors.of_kind?(:name, "incorrect")
end
test "of_kind? defaults message to :invalid" do
person = Person.new
person.errors.add(:name)
assert person.errors.of_kind?(:name)
end
test "of_kind? handles proc messages" do
person = Person.new
message = Proc.new { "cannot be blank" }
person.errors.add(:name, message)
assert person.errors.of_kind?(:name, message)
end
test "of_kind? returns true when string attribute is used with a symbol message" do
person = Person.new
person.errors.add(:name, :blank)
assert person.errors.of_kind?("name", :blank)
end
test "of_kind? handles symbol message" do
person = Person.new
person.errors.add(:name, :blank)
assert person.errors.of_kind?(:name, :blank)
end
test "of_kind? detects indifferent if a specific error was added to the object" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert person.errors.of_kind?(:name, "cannot be blank")
assert person.errors.of_kind?("name", "cannot be blank")
end
test "of_kind? ignores options" do
person = Person.new
person.errors.add :name, :too_long, count: 25
assert person.errors.of_kind? :name, :too_long
assert person.errors.of_kind? :name, "is too long (maximum is 25 characters)"
end
test "of_kind? returns false when checking for an error by symbol and a different error with same message is present" do
I18n.backend.store_translations("en", errors: { attributes: { name: { wrong: "is wrong", used: "is wrong" } } })
person = Person.new
person.errors.add(:name, :wrong)
assert_not person.errors.of_kind?(:name, :used)
assert person.errors.of_kind?(:name, :wrong)
end
test "size calculates the number of error messages" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_equal 1, person.errors.size
end
test "count calculates the number of error messages" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_equal 1, person.errors.count
end
test "to_a returns the list of errors with complete messages containing the attribute names" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:name, "cannot be nil")
assert_equal ["name cannot be blank", "name cannot be nil"], person.errors.to_a
end
test "to_h is deprecated" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:name, "too long")
expected_deprecation = "ActiveModel::Errors#to_h is deprecated"
assert_deprecated(expected_deprecation) do
assert_equal({ name: "too long" }, person.errors.to_h)
end
end
test "to_hash returns the error messages hash" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_equal({ name: ["cannot be blank"] }, person.errors.to_hash)
end
test "to_hash returns a hash without default proc" do
person = Person.new
assert_nil person.errors.to_hash.default_proc
end
test "as_json returns a hash without default proc" do
person = Person.new
assert_nil person.errors.as_json.default_proc
end
test "full_messages doesn't require the base object to respond to `:errors" do
model = Class.new do
def initialize
@errors = ActiveModel::Errors.new(self)
@errors.add(:name, "bar")
end
def self.human_attribute_name(attr, options = {})
"foo"
end
def call
error_wrapper = Struct.new(:model_errors)
error_wrapper.new(@errors)
end
end
assert_equal(["foo bar"], model.new.call.model_errors.full_messages)
end
test "full_messages creates a list of error messages with the attribute name included" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:name, "cannot be nil")
assert_equal ["name cannot be blank", "name cannot be nil"], person.errors.full_messages
end
test "full_messages_for contains all the error messages for the given attribute indifferent" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:name, "cannot be nil")
assert_equal ["name cannot be blank", "name cannot be nil"], person.errors.full_messages_for(:name)
end
test "full_messages_for does not contain error messages from other attributes" do
person = Person.new
person.errors.add(:name, "cannot be blank")
person.errors.add(:email, "cannot be blank")
assert_equal ["name cannot be blank"], person.errors.full_messages_for(:name)
assert_equal ["name cannot be blank"], person.errors.full_messages_for("name")
end
test "full_messages_for returns an empty list in case there are no errors for the given attribute" do
person = Person.new
person.errors.add(:name, "cannot be blank")
assert_equal [], person.errors.full_messages_for(:email)
end
test "full_message returns the given message when attribute is :base" do
person = Person.new
assert_equal "press the button", person.errors.full_message(:base, "press the button")
end
test "full_message returns the given message with the attribute name included" do
person = Person.new
assert_equal "name cannot be blank", person.errors.full_message(:name, "cannot be blank")
assert_equal "name_test cannot be blank", person.errors.full_message(:name_test, "cannot be blank")
end
test "as_json creates a json formatted representation of the errors hash" do
person = Person.new
person.validate!
assert_equal({ name: ["cannot be nil"] }, person.errors.as_json)
end
test "as_json with :full_messages option creates a json formatted representation of the errors containing complete messages" do
person = Person.new
person.validate!
assert_equal({ name: ["name cannot be nil"] }, person.errors.as_json(full_messages: true))
end
test "generate_message works without i18n_scope" do
person = Person.new
assert_not_respond_to Person, :i18n_scope
assert_nothing_raised {
person.errors.generate_message(:name, :blank)
}
end
test "details returns added error detail" do
person = Person.new
person.errors.add(:name, :invalid)
assert_equal({ name: [{ error: :invalid }] }, person.errors.details)
end
test "details returns added error detail with custom option" do
person = Person.new
person.errors.add(:name, :greater_than, count: 5)
assert_equal({ name: [{ error: :greater_than, count: 5 }] }, person.errors.details)
end
test "details do not include message option" do
person = Person.new
person.errors.add(:name, :invalid, message: "is bad")
assert_equal({ name: [{ error: :invalid }] }, person.errors.details)
end
test "details retains original type as error" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, "cannot be nil")
errors.add("foo", "bar")
errors.add(:baz, nil)
errors.add(:age, :invalid, count: 3, message: "%{count} is too low")
assert_equal(
{
name: [{ error: "cannot be nil" }],
foo: [{ error: "bar" }],
baz: [{ error: nil }],
age: [{ error: :invalid, count: 3 }]
},
errors.details
)
end
test "group_by_attribute" do
person = Person.new
error = person.errors.add(:name, :invalid, message: "is bad")
hash = person.errors.group_by_attribute
assert_equal({ name: [error] }, hash)
end
test "dup duplicates details" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
errors_dup = errors.dup
errors_dup.add(:name, :taken)
assert_not_equal errors_dup.details, errors.details
end
test "delete returns nil when no errors were deleted" do
errors = ActiveModel::Errors.new(Person.new)
assert_nil(errors.delete(:name))
end
test "delete removes details on given attribute" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
errors.delete(:name)
assert_not errors.added?(:name)
end
test "delete returns the deleted messages" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
assert_equal ["is invalid"], errors.delete(:name)
end
test "clear removes details" do
person = Person.new
person.errors.add(:name, :invalid)
assert_equal 1, person.errors.details.count
person.errors.clear
assert_empty person.errors.details
end
test "copy errors (deprecated)" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
person = Person.new
person.errors.copy!(errors)
assert_equal [:name], person.errors.messages.keys
assert_equal [:name], person.errors.details.keys
end
test "details returns empty array when accessed with non-existent attribute" do
errors = ActiveModel::Errors.new(Person.new)
assert_equal [], errors.details[:foo]
end
test "copy errors" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
person = Person.new
person.errors.copy!(errors)
assert person.errors.added?(:name, :invalid)
person.errors.each do |error|
assert_same person, error.base
end
end
test "merge errors (deprecated)" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
person = Person.new
person.errors.add(:name, :blank)
person.errors.merge!(errors)
assert_equal({ name: ["can't be blank", "is invalid"] }, person.errors.messages)
assert_equal({ name: [{ error: :blank }, { error: :invalid }] }, person.errors.details)
end
test "merge errors" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
person = Person.new
person.errors.add(:name, :blank)
person.errors.merge!(errors)
assert(person.errors.added?(:name, :invalid))
assert(person.errors.added?(:name, :blank))
end
test "slice! removes all errors except the given keys" do
person = Person.new
person.errors.add(:name, "cannot be nil")
person.errors.add(:age, "cannot be nil")
person.errors.add(:gender, "cannot be nil")
person.errors.add(:city, "cannot be nil")
assert_deprecated { person.errors.slice!(:age, "gender") }
assert_equal [:age, :gender], assert_deprecated { person.errors.keys }
end
test "slice! returns the deleted errors" do
person = Person.new
person.errors.add(:name, "cannot be nil")
person.errors.add(:age, "cannot be nil")
person.errors.add(:gender, "cannot be nil")
person.errors.add(:city, "cannot be nil")
removed_errors = assert_deprecated { person.errors.slice!(:age, "gender") }
assert_equal({ name: ["cannot be nil"], city: ["cannot be nil"] }, removed_errors)
end
test "errors are marshalable" do
errors = ActiveModel::Errors.new(Person.new)
errors.add(:name, :invalid)
serialized = Marshal.load(Marshal.dump(errors))
assert_equal Person, serialized.instance_variable_get(:@base).class
assert_equal errors.messages, serialized.messages
assert_equal errors.details, serialized.details
end
test "errors are compatible with marshal dumped from Rails 5.x" do
# Derived from
# errors = ActiveModel::Errors.new(Person.new)
# errors.add(:name, :invalid)
dump = "\x04\bU:\x18ActiveModel::Errors[\bo:\x17ErrorsTest::Person\x06:\f@errorsU;\x00[\b@\a{\x00{\x00{\x06:\tname[\x06I\"\x0Fis invalid\x06:\x06ET{\x06;\b[\x06{\x06:\nerror:\finvalid"
serialized = Marshal.load(dump)
assert_equal Person, serialized.instance_variable_get(:@base).class
assert_equal({ name: ["is invalid"] }, serialized.messages)
assert_equal({ name: [{ error: :invalid }] }, serialized.details)
end
test "errors are backward compatible with the Rails 4.2 format" do
yaml = <<~CODE
--- !ruby/object:ActiveModel::Errors
base: &1 !ruby/object:ErrorsTest::Person
errors: !ruby/object:ActiveModel::Errors
base: *1
messages: {}
messages: {}
CODE
errors = YAML.load(yaml)
errors.add(:name, :invalid)
assert_equal({ name: ["is invalid"] }, errors.messages)
assert_equal({ name: [{ error: :invalid }] }, errors.details)
errors.clear
assert_equal({}, errors.messages)
assert_equal({}, errors.details)
end
test "errors are compatible with YAML dumped from Rails 5.x" do
yaml = <<~CODE
--- !ruby/object:ActiveModel::Errors
base: &1 !ruby/object:ErrorsTest::Person
errors: !ruby/object:ActiveModel::Errors
base: *1
messages: {}
details: {}
messages:
:name:
- is invalid
details:
:name:
- :error: :invalid
CODE
errors = YAML.load(yaml)
assert_equal({ name: ["is invalid"] }, errors.messages)
assert_equal({ name: [{ error: :invalid }] }, errors.details)
errors.clear
assert_equal({}, errors.messages)
assert_equal({}, errors.details)
end
test "errors are compatible with YAML dumped from Rails 6.x" do
yaml = <<~CODE
--- !ruby/object:ActiveModel::Errors
base: &1 !ruby/object:ErrorsTest::Person
errors: !ruby/object:ActiveModel::Errors
base: *1
errors: []
errors:
- !ruby/object:ActiveModel::Error
base: *1
attribute: :name
type: :invalid
raw_type: :invalid
options: {}
CODE
errors = YAML.load(yaml)
assert_equal({ name: ["is invalid"] }, errors.messages)
assert_equal({ name: [{ error: :invalid }] }, errors.details)
errors.clear
assert_equal({}, errors.messages)
assert_equal({}, errors.details)
end
end