You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: 04_using_static_composition_via_inner_flow_test.rb
    path of file: ./repos/u-case/test/micro/case/MWRF/steps
    
    the code of the file until where you have to start completion: require 'test_helper'

require_relative '../users_entity'
require_relative '../shared_assertions'

class Micro::Case::MWRF
  class Step04UsingStaticCompositionViaInnerFlowTest < Minitest::Test
    include Sha
    
        def call!
          validation_errors = []
          validation_errors << "Name can't be blank" if name.empty?
          validation_errors << "Email is invalid" if email !~ URI::MailTo::EMAIL_REGEXP

          return Success() if validation_errors.empty?

          Failure :invalid_attributes, result: {
            errors: OpenStruct.new(full_messages: validation_errors)
          }
        end