Validation Matchers ¶ ↑

RSpec matchers for testing ActiveModel custom validations in isolation from your application’s models

From the command line

gem install validation_matchers

Using bundler

gem "validation_matchers", "~> 0.1.0"

Currently we support testing subclasses of ActiveModel::EachValidator.

Use the gem in your specs by including ValidationMatchers::ActiveModel. You will get access to “pass_validate_each” and “fail_validate_each” methods.

require 'validation_matchers/active_model' 

describe MyActiveModelValidator do
  include ValidationMatchers::ActiveModel
  subject { MyActiveModelValidator.new({:attributes=>{}}) }

  it "allows a valid value" do
    subject.should pass_validate_each(:attr, "valid value") 
  end

  it "rejects an invalid value" do
    subject.should fail_validate_each(:attr, "some bad value") 
  end
end