Problem z ładowaniem klasy przy rspecu

Potrzebna pomoc
1

Hej,
mam taki głupi problem.
Otóż przy ładowaniu rspeca mam błąd:
/home/slawosz/.rvm/gems/ruby-1.8.7-p248@gemy_dla_x/gems/activesupport-2.3.5/lib/active_support/core_ext/date/calculations.rb:11:in alias_method': undefined method+’ for class `Date’ (NameError)
W script/console (zarówno w enviroment jak i test) jest tak:

>> Date.instance_methods.sort => ["+", "-", "<", "<<", "<=", "<=>", "==", "===", "=~", ">", ">=", ">>", "_?", "__id__", "__send__", "_dump", "`", "acts_like?", "acts_like_date?", "advance", "ago", "ajd", "amjd", "as_json", "asctime", "at_beginning_of_day", "at_beginning_of_month", "at_beginning_of_quarter", "at_beginning_of_week", "at_beginning_of_year", "at_end_of_month", "at_end_of_quarter", "at_end_of_week", "at_end_of_year", "at_midnight", "b64encode", "beginning_of_day", "beginning_of_month", "beginning_of_quarter", "beginning_of_week", "beginning_of_year", "between?", "blank?", "breakpoint", "change", "class", "class_eval", "classy_module", "clone", "copy_instance_variables_from", "ctime", "cwday", "cweek", "cwyear", "daemonize", "day", "day_fraction", "dclone", "debugger", "decode64", "decode_b", "default_inspect", "display", "downto", "dup", "duplicable?", "enable_warnings", "encode64", "end_of_day", "end_of_month", "end_of_quarter", "end_of_week", "end_of_year", "england", "enum_for", "eql?", "equal?", "extend", "extend_with_included_modules_from", "extended_by", "freeze", "frozen?", "future?", "gregorian", "gregorian?", "hash", "id", "in", "in?", "inspect", "instance_eval", "instance_exec", "instance_of?", "instance_values", "instance_variable_defined?", "instance_variable_get", "instance_variable_names", "instance_variable_set", "instance_variables", "is_a?", "is_a_without_multiple_args?", "it", "italy", "its", "jd", "julian", "julian?", "kind_of?", "last_month", "last_year", "ld", "leap?", "load_with_new_constant_marking", "mday", "meta_def", "meta_eval", "metaclass", "metaclass_eval", "method", "methods", "midnight", "minus_with_duration", "minus_without_duration", "mjd", "mon", "monday", "month", "months_ago", "months_since", "new_start", "newsg", "next", "next_month", "next_week", "next_year", "nil?", "not_in?", "ns?", "numeric?", "object_id", "os?", "past?", "plus_with_duration", "plus_without_duration", "present?", "pretty_inspect", "pretty_print", "pretty_print_cycle", "pretty_print_inspect", "pretty_print_instance_variables", "private_methods", "protected_methods", "public_methods", "readable_inspect", "remove_subclasses_of", "require", "require_association", "require_dependency", "require_library_or_gem", "require_or_load", "respond_to?", "returning", "send", "sg", "silence_stderr", "silence_stream", "silence_warnings", "since", "singleton_methods", "start", "step", "strftime", "subclasses_of", "succ", "suppress", "taguri", "taguri=", "taint", "tainted?", "tap", "to_a", "to_date", "to_datetime", "to_default_s", "to_enum", "to_formatted_s", "to_json", "to_param", "to_query", "to_s", "to_time", "to_yaml", "to_yaml_properties", "to_yaml_style", "today?", "tomorrow", "try", "type", "unloadable", "untaint", "upto", "wday", "weekday?", "with_options", "workday?", "xmlschema", "yday", "year", "years_ago", "years_since", "yesterday"]
Natomiast dodając linijkę w
/home/slawosz/.rvm/gems/ruby-1.8.7-p248@gemy_dla_x/gems/activesupport-2.3.5/lib/active_support/core_ext/date/calculations.rb
p

[code=ruby]module ActiveSupport #:nodoc:
module CoreExtensions #:nodoc:
module Date #:nodoc:
# Enables the use of time calculations within Date itself
module Calculations
def self.included(base) #:nodoc:

      # debug
      p Date.instance_methods.sort
      base.extend ClassMethods

      base.instance_eval do
        p self.class
        alias_method :plus_without_duration, :+
        alias_method :+, :plus_with_duration

        alias_method :minus_without_duration, :-
        alias_method :-, :minus_with_duration
      end
    end[/code]

i uruchamiając testy (spec spec/, rake spec) istotnie nie ma metody + w tablicy.
Co ciekawe, jak robię rake test (jest parę starych testów z generatora to debug z railsów uruchamia się 2 razy - raz pokazuje metody z + a drugi raz już bez + i jest błąd jak na początku.

Podejrzewam, że coś się wcina i ‘nadpisuje’ klasę Date. Moje pytanie - jak to wyśledzić? Jakieś hooki w stylu method_added itp?
Pozdrawiam,
Sławosz

2

[quote=Metaprogramming Ruby/ Paolo Perrota]Plugging Into Standard Methods
The notion of hooks extends beyond specialized methodslike Class#inherited( ) or Module#method_added( ). Because mostoperations in Ruby are just regular methods, you can easily twistthem into improvised Hook Methods.
For example, in Section 5.7, Hook Methods, on page 182, you learned how to override Module#included() to execute codewhen a module is included. But you can also plug into the sameevent, so to speak, from the other side: Because you include amodule with the include() method, instead of overriding Mod-ule#included( ), you can override Module#include( ) itself.
For example:

module M; end class C def self.include(*modules) puts "Called: C.include(#{modules})" super end include M end Called: C.include(M)
[/quote]

3
  • to metoda instancji a nie klasowa

Przypuszczam, że w spec’u piszesz Date zamiast Date.new lub coś w tym stylu, podeślij kod spec’a.

4

No właśnie w specu nic nie mam. Ten błąd występuje na poziomie samego ładowania, co mi skutecznie uniemożliwia napisanie speców.

Hmm, to może gdzieś w na poziomie ładowania coś zamiast działać na instancji, działa na klasie…

@sevos:
Dzięki, za chwilę spróbuję podziałać

5

Jaka wersja RSpec? 2.0-beta-cośtam czy 1.2.9/1.3?

6

rspec (1.3.0)
rspec-rails (1.3.2)

Na innej aplikacji e tym gemsecie rspec działa…

7

Okazało się, ze w spec-helper było

require File.expand_path(File.join(File.dirname(__FILE__),'..','config','environment'))

więc się srodowisko załadowało 2 razy tylko przy uruchomieniu speców, wystarczyło zamienić na:

require File.expand_path(File.join(File.dirname(__FILE__),'..','config','environment')) unless defined?(:Rails)

Dzięki wszystkim za rady :slight_smile: