Rails - Mar 2007 - Validations only don't work in tests!

Hi all

I have written the following unit tests:

  def test_invalid_characters_in_abbrevation
    @country = Country.new(valid_country_attrs)
    assert @country.valid?

    %w{ a1 11 09 äü ''(a'' ''d&'' }.each do
|abbr|
      @country.abbrevation = abbr
      assert(!@country.valid?, "''#{@country.abbrevation}''
should not be
a valid abbrevation because of invalid characters")
      assert_equal(@country.errors.on(:abbrevation),
Country.error_messages[:not_allowed_chars_in_abbrevation])
    end
  end

  def test_invalid_abbrevation_length
    @country = Country.new(valid_country_attrs)
    assert @country.valid?
    %w{ a b x D G X aAa BBb CCC DFwFe }.each do |abbr|
      @country.abbrevation = abbr
      assert(!@country.valid?, "''#{@country.abbrevation}''
should not be
a valid abbrevation because of invalid length")
      assert_equal(@country.errors.on(:abbrevation),
Country.error_messages[:abbrevation_has_wrong_length])
    end
  end

My Country model looks like the following:

class Country < ActiveRecord::Base
  validates_presence_of :abbrevation
  validates_presence_of :name

  def self.error_messages
    { :not_allowed_chars_in_abbrevation => ''must contain only A-Z
(uppercase)'',
      :abbrevation_has_wrong_length => ''must be exactly 2 chars
long''}
  end

  def before_validation
    abbrevation.upcase! # Make abbrevation upper case!
  end

  def after_validation
    if !@errors.on(:abbrevation)
      @errors.add(:abbrevation,
self.class.error_messages[:not_allowed_chars_in_abbrevation]) unless
abbrevation =~ /^[A-Z]+$/
    end
    if !@errors.on(:abbrevation)
      @errors.add(:abbrevation,
self.class.error_messages[:abbrevation_has_wrong_length]) unless
abbrevation.length == 2
    end
  end
end

Strangely these tests work perfectly when manually testing them via web
browser. But in my unit tests they abort!

chraftbuech:~/Webwork/pgbookings josh$ ruby test/unit/country_test.rb
Loaded suite test/unit/country_test
Started
.FF...
Finished in 0.13866 seconds.

  1) Failure:
test_invalid_abbrevation_length(CountryTest)
    [test/unit/country_test.rb:73:in `test_invalid_abbrevation_length''
     test/unit/country_test.rb:71:in `each''
     test/unit/country_test.rb:71:in
`test_invalid_abbrevation_length'']:
''A'' should not be a valid abbrevation because of invalid
length.
<false> is not true.

  2) Failure:
test_invalid_characters_in_abbrevation(CountryTest)
    [test/unit/country_test.rb:63:in
`test_invalid_characters_in_abbrevation''
     test/unit/country_test.rb:61:in `each''
     test/unit/country_test.rb:61:in
`test_invalid_characters_in_abbrevation'']:
''A1'' should not be a valid abbrevation because of invalid
characters.
<false> is not true.

6 tests, 32 assertions, 2 failures, 0 errors

I don''t have any clue why! Anyone can point me into the right
direction?

Thanks a lot
Josh

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