为自定义验证器创建测试

Question

Trying to implement a couple tests for my custom validations and I came across this example .

My validator looks like this

class FutureValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    if value == nil
      record.errors[attribute] << " can't be nil"
    elsif value < Time.now
      record.errors[attribute] << (options[:message] || "can't be in the past!")
    end
  end
end

And I've gotten as far as this using the above mentioned example as a guideline.

require 'test_helper'

class FutureValidatorable
  include ActiveModel::Validations
  # validates_with FutureValidator
  attr_accessor :future

  validates :future, future: true
end

class FutureValidator < ActiveSupport::TestCase

  future_value = [nil]
  def obj; @obj ||= FutureValidatorable.new; end

  test 'future validator returns proper error code when nil is passed to it' do
    future_value.each do |value|
      @obj.value = value
      assert_not obj.valid?
    end
  end

At this stage I'm getting the error message I am getting is as follows.

rake aborted! TypeError: superclass mismatch for class FutureValidator

I'm not sure how to proceed from here.

Answer 1

Looks like your model and TestCase have the same class name. Changing the name of your test should fix the issue.