Attempted test case of Active Record Query bug

test.rb

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  source "https://rubygems.org"
  gem "rails",'5.0.0.1'
  gem "arel"
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :users, force: true do |t|
    t.string   "name"
    t.string   "phone"
    t.string   "email"
    t.timestamps
  end

end

class User < ActiveRecord::Base
  before_validation { self.email = email.try(:downcase) }
  validates :name,  presence: { message: "cannot be empty" }, length: { maximum: 50 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, presence: { message: "cannot be empty" },
                    format: { with: VALID_EMAIL_REGEX, message: "should be valid email format" }
  validates :phone,  presence: { message: "cannot be empty" }, length: { maximum: 50 }
end

class BugTest < Minitest::Test
  def test_stuff
    user1 = User.create!(name:"Test1", email: "test45@test.com",  phone: "1234567890")
    (1..100).each {|n| User.create!(name:"Test#{n}", email: "test#{n}@test.com",  phone: "1234567890")}
    user2 = User.create!(name:"Test2", email: "test45@test.com",  phone: "1234567890")

    sleep 1
    user1.name = "Test 1"
    user1.save

    email = "test45@test.com"
    query = User.where("email = '#{email}'")

    puts "Blank?: " + query.blank?.to_s
    puts "Length: " + query.length.to_s
    puts "Last.id: " + query.last.id.to_s

    assert_equal query.last, User.where("email = '#{email}'").last
  end
end