activesupport/test/whiny_nil_test.rb


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# Stub to enable testing without Active Record
module ActiveRecord
  class Base
    def save!
    end
  end
end

require 'abstract_unit'
require 'active_support/whiny_nil'

NilClass.add_whiner ::ActiveRecord::Base

class WhinyNilTest < Test::Unit::TestCase
  def test_unchanged
    nil.method_thats_not_in_whiners
  rescue NoMethodError => nme
    assert_match(/nil:NilClass/, nme.message)
  end

  def test_active_record
    nil.save!
  rescue NoMethodError => nme
    assert_no_match(/nil:NilClass/, nme.message)
    assert_match(/nil\.save!/, nme.message)
  end

  def test_array
    nil.each
  rescue NoMethodError => nme
    assert_no_match(/nil:NilClass/, nme.message)
    assert_match(/nil\.each/, nme.message)
  end

  def test_id
    nil.id
  rescue RuntimeError => nme
    assert_no_match(/nil:NilClass/, nme.message)
    assert_match(Regexp.new(nil.object_id.to_s), nme.message)
  end

  def test_no_to_ary_coercion
    nil.to_ary
  rescue NoMethodError => nme
    assert_no_match(/nil:NilClass/, nme.message)
    assert_match(/nil\.to_ary/, nme.message)
  end

  def test_no_to_str_coercion
    nil.to_str
  rescue NoMethodError => nme
    assert_match(/nil:NilClass/, nme.message)
  end
end