Module: Validator::Matchers::ValidatorSpecHelper

Defined in:
lib/validator/matchers/validator_spec_helper.rb

Overview

TODO: Document and cleanup.

Constant Summary collapse

DEFAULT_ATTRIBUTE_NAME = 
:value

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object

Auto extend validator specs when included



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# File 'lib/validator/matchers/validator_spec_helper.rb', line 16

def self.included(base)
  base.instance_eval do
    let(:validator_name) do
      RSpec.current_example.full_description.match(/\A[\w:]+Validator/)[0]
    end

    let(:validator_class) { Object.const_get(validator_name) }

    let(:validator_type) do
      if validator_class.ancestors.include? ActiveModel::EachValidator
        ActiveModel::EachValidator
      else
        ActiveModel::Validator
      end
    end

    let(:validation_name) do
      validator_name.underscore.gsub(/_validator\Z/, '')
    end

    let(:attribute_names) { [DEFAULT_ATTRIBUTE_NAME] }

    let(DEFAULT_ATTRIBUTE_NAME) { nil }

    let(:options) { nil }

    # This smells like it can be extracted into two objects.
    let(:model_class) do
      example_group = self
      Struct.new(*attribute_names) do
        include ActiveModel::Validations

        def self.name
          'ValidatorModelMock'
        end

        if example_group.validator_type == ActiveModel::EachValidator
          args =
            {
              example_group.validation_name.to_sym => (
                example_group.options || true
              )
            }
          validates DEFAULT_ATTRIBUTE_NAME, args
        else
          if example_group.options.nil?
            validates_with example_group.validator_class
          else
            validates_with example_group.validator_class,
              example_group.options
          end
        end
      end
    end

    let(:validator_model_mock) do
      attributes = attribute_names.map { |name| eval("#{name}") }
      model_class.new(*attributes)
    end
  end
end