shoulda error with validates_each

error.txt

suki[test] (feature/testing)$ ruby unit/instructor_test.rb
/Users/suki/.rvm/gems/ruby-1.8.7-p302@rails2.3.5/gems/rails-2.3.5/lib/rails/gem_dependency.rb:119:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010.  Use #requirement
Loaded suite unit/instructor_test
Started
..EE
Finished in 0.146222 seconds.

  1) Error:
test: Instructor should require email to be set. (InstructorTest):
NoMethodError: undefined method `[]' for false:FalseClass
    app/models/instructor.rb:11
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/allow_value_matcher.rb:61:in `errors_match?'
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/allow_value_matcher.rb:43:in `matches?'
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/validation_matcher.rb:43:in `disallows_value_of'
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/validate_presence_of_matcher.rb:32:in `matches?'
    shoulda (2.11.3) [v] lib/shoulda/assertions.rb:53:in `assert_accepts'
    shoulda (2.11.3) [v] lib/shoulda/context.rb:324:in `__bind_1285369213_172216'
    shoulda (2.11.3) [v] lib/shoulda/context.rb:382:in `call'
    shoulda (2.11.3) [v] lib/shoulda/context.rb:382:in `test: Instructor should require email to be set. '

  2) Error:
test: Instructor should require name to be set. (InstructorTest):
NoMethodError: undefined method `[]' for false:FalseClass
    app/models/instructor.rb:11
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/allow_value_matcher.rb:61:in `errors_match?'
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/allow_value_matcher.rb:43:in `matches?'
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/validation_matcher.rb:43:in `disallows_value_of'
    shoulda (2.11.3) [v] lib/shoulda/active_record/matchers/validate_presence_of_matcher.rb:32:in `matches?'
    shoulda (2.11.3) [v] lib/shoulda/assertions.rb:53:in `assert_accepts'
    shoulda (2.11.3) [v] lib/shoulda/context.rb:324:in `__bind_1285369213_176152'
    shoulda (2.11.3) [v] lib/shoulda/context.rb:382:in `call'
    shoulda (2.11.3) [v] lib/shoulda/context.rb:382:in `test: Instructor should require name to be set. '

4 tests, 2 assertions, 0 failures, 2 errors

instructor_model.rb

class Instructor < ActiveRecord::Base
  validates_presence_of :name
  validates_presence_of :email
  validates_uniqueness_of :name

  # Causes test errors. Works in real practice.
  validates_each :name do |record, attr, value|
    name_hash = self.parse_name(value) # returns a hash with :first_name and :last_name
    record.errors.add attr, 'must have a first and last name' if
      ( name_hash[:first_name].nil? || name_hash[:last_name].nil? )
  end

  private
  def self.parse_name(value)
    # The code for this method can be found at
    # http://gist.github.com/491187
    #
    # It returns the following when value = "John Doe"
    return {
      :suffix => "",
      :last_name  => "Doe",
      :prefix => "",
      :first_name => "John",
      :middle_name => ""
    }
  end
end

instructor_test.rb

require 'test_helper'

class InstructorTest < ActiveSupport::TestCase
  should validate_presence_of(:name)
  should validate_uniqueness_of(:name)

  should validate_presence_of(:email)
end

rvm-info.txt

ruby-1.8.7-p302@rails2.3.5:

  system:
    uname:       "Darwin Yuzuki 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386 i386"
    bash:        "/bin/bash => GNU bash, version 3.2.48(1)-release (x86_64-apple-darwin10.0)"
    zsh:         "/bin/zsh => zsh 4.3.9 (i386-apple-darwin10.0)"

  rvm:
    version:      "rvm 1.0.11 by Wayne E. Seguin (wayneeseguin@gmail.com) [http://rvm.beginrescueend.com/]"

  ruby:
    interpreter:  "ruby"
    version:      "1.8.7"
    date:         "2010-08-16"
    platform:     "i686-darwin10.4.0"
    patchlevel:   "2010-08-16 patchlevel 302"
    full_version: "ruby 1.8.7 (2010-08-16 patchlevel 302) [i686-darwin10.4.0]"

  homes:
    gem:          "/Users/suki/.rvm/gems/ruby-1.8.7-p302@rails2.3.5"
    ruby:         "/Users/suki/.rvm/rubies/ruby-1.8.7-p302"

  binaries:
    ruby:         "/Users/suki/.rvm/rubies/ruby-1.8.7-p302/bin/ruby"
    irb:          "/Users/suki/.rvm/rubies/ruby-1.8.7-p302/bin/irb"
    gem:          "/Users/suki/.rvm/rubies/ruby-1.8.7-p302/bin/gem"
    rake:         "/usr/local/bin/rake"

  environment:
    PATH:         "/Users/suki/.rvm/gems/ruby-1.8.7-p302@rails2.3.5/bin:/Users/suki/.rvm/gems/ruby-1.8.7-p302@global/bin:/Users/suki/.rvm/rubies/ruby-1.8.7-p302/bin:/Users/suki/.rvm/bin:/usr/local/bin:/usr/local/sbin:/Users/suki/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11/bin:/Developer/Tools"
    GEM_HOME:     "/Users/suki/.rvm/gems/ruby-1.8.7-p302@rails2.3.5"
    GEM_PATH:     "/Users/suki/.rvm/gems/ruby-1.8.7-p302@rails2.3.5:/Users/suki/.rvm/gems/ruby-1.8.7-p302@global"
    BUNDLE_PATH:  "/Users/suki/.rvm/gems/ruby-1.8.7-p302@rails2.3.5"
    MY_RUBY_HOME: "/Users/suki/.rvm/rubies/ruby-1.8.7-p302"
    IRBRC:        "/Users/suki/.rvm/rubies/ruby-1.8.7-p302/.irbrc"
    RUBYOPT:      ""
    gemset:       "rails2.3.5"