How to write test about validates_associated

rubyonrails-talk
1

Here is my model:

class Account < ActiveRecord::Base

  has_many :users, :dependent => :destroy   has_many :bus   belongs_to :currency   has_many :mylogs, :dependent => :destroy   has_many :batchuserdefines, :dependent => :destroy   has_many :materialuserdefines, :dependent => :destroy   has_many :materials   has_many :inventories   has_many :batchs   has_many :courses   has_many :projects   has_many :initstocks,:dependent => :destroy   has_many :vouchertypes, :dependent => :destroy   has_one :coursecodeformat, :dependent => :destroy

  validates_uniqueness_of :name_native   validates_uniqueness_of :code   validates_presence_of :code   validates_presence_of :name_native   validates_presence_of :email   validates_presence_of :phone   validates_associated :currency   validates_associated :coursecodeformat   validates_associated :vouchertypes end

and here is my test:

require File.dirname(__FILE__) + '/../test_helper'

class AccountTest < Test::Unit::TestCase

  def test_validate_present     account = Account.new     assert !account.valid?     assert account.errors.invalid?(:name_native)     assert !account.errors.invalid?(:code)     assert account.errors.invalid?(:email)     assert account.errors.invalid?(:phone)     assert account.errors.invalid?(:currency)     assert account.errors.invalid?(:coursecodeformat)     assert account.errors.invalid?(:vouchertypes)   end end

and the resualt: test_validate_present(AccountTest) [test/unit/account_test.rb:12]: (false) is not true.

It looks the test failed at assert account.errors.invalid?(:currency)

I feel puzzle. The model and the test looks simple,why failed

2

Michael Gao wrote:

Here is my model:

class Account < ActiveRecord::Base   belongs_to :currency   validates_associated :currency   validates_associated :coursecodeformat   validates_associated :vouchertypes end

and here is my test:

require File.dirname(__FILE__) + '/../test_helper'

class AccountTest < Test::Unit::TestCase

  def test_validate_present     account = Account.new     assert account.errors.invalid?(:currency)   end end

and the resualt: test_validate_present(AccountTest) [test/unit/account_test.rb:12]: (false) is not true.

It looks the test failed at assert account.errors.invalid?(:currency)

I feel puzzle. The model and the test looks simple,why failed

I think you mis-understood the docs

http://api.rubyonrails.org/classes/ActiveRecord/Validations/ClassMethods.html#M001055

validates_associated - "Validates whether the associated object or objects are all valid themselves"

ie. it doesn't validate that there is a currency, it just says something like;

def account.errors.invalid?(:currency)   if account.currency     account.currency.invalid?   else     return false   end end

so at the moment the test would only pass if you did

account = Account.new account.build_currency(:something => :invalid) ...

think maybe "validates_presence_of :currency" will work for you.

3

Ok,it work,thanks