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: test_minitest_spec.rb
    path of file: ./repos/minitest/test/minitest
    
    the code of the file until where you have to start completion: # encoding: utf-8
require "minitest/metametameta"
require "stringio"

class MiniSpecA < Minitest::Spec; end
class MiniSpecB < Minitest::Test; extend 
    
  def assert_triggered expected = "blah", klass = Minitest::Assertion
    @assertion_count += 1

    e = assert_raises(klass) do
      yield
    end

    msg = e.message.sub(/(---Backtrace---).*/m, '\1')
    msg.gsub!(/\(oid=[-0-9]+\)/, "(oid=N)")
    msg.gsub!(/(\d\.\d{6})\d+/, '\1xxx') # normalize: ruby version, impl, platform
    msg.gsub!(/:0x[Xa-fA-F0-9]{4,}[ @].+?>/, ":0xXXXXXX@PATH>")

    if expected
      @assertion_count += 1
      case expected
      when String then
        assert_equal expected, msg
      when Regexp then
        @assertion_count += 1
        assert_match expected, msg
      else
        flunk "Unknown: #{expected.inspect}"
      end