vendor/rails/activerecord/test/cases/finder_respond_to_test.rb

   1 require "cases/helper"
   2 require 'models/topic'
   3
   4 class FinderRespondToTest < ActiveRecord::TestCase
   5
   6   fixtures :topics
   7
   8   def test_should_preserve_normal_respond_to_behaviour_and_respond_to_newly_added_method
   9     class << Topic; self; end.send(:define_method, :method_added_for_finder_respond_to_test) { }
  10     assert Topic.respond_to?(:method_added_for_finder_respond_to_test)
  11   ensure
  12     class << Topic; self; end.send(:remove_method, :method_added_for_finder_respond_to_test)
  13   end
  14
  15   def test_should_preserve_normal_respond_to_behaviour_and_respond_to_standard_object_method
  16     assert Topic.respond_to?(:to_s)
  17   end
  18
  19   def test_should_respond_to_find_by_one_attribute_before_caching
  20     ensure_topic_method_is_not_cached(:find_by_title)
  21     assert Topic.respond_to?(:find_by_title)
  22   end
  23
  24   def test_should_respond_to_find_all_by_one_attribute
  25     ensure_topic_method_is_not_cached(:find_all_by_title)
  26     assert Topic.respond_to?(:find_all_by_title)
  27   end
  28
  29   def test_should_respond_to_find_all_by_two_attributes
  30     ensure_topic_method_is_not_cached(:find_all_by_title_and_author_name)
  31     assert Topic.respond_to?(:find_all_by_title_and_author_name)
  32   end
  33
  34   def test_should_respond_to_find_by_two_attributes
  35     ensure_topic_method_is_not_cached(:find_by_title_and_author_name)
  36     assert Topic.respond_to?(:find_by_title_and_author_name)
  37   end
  38
  39   def test_should_respond_to_find_or_initialize_from_one_attribute
  40     ensure_topic_method_is_not_cached(:find_or_initialize_by_title)
  41     assert Topic.respond_to?(:find_or_initialize_by_title)
  42   end
  43
  44   def test_should_respond_to_find_or_initialize_from_two_attributes
  45     ensure_topic_method_is_not_cached(:find_or_initialize_by_title_and_author_name)
  46     assert Topic.respond_to?(:find_or_initialize_by_title_and_author_name)
  47   end
  48
  49   def test_should_respond_to_find_or_create_from_one_attribute
  50     ensure_topic_method_is_not_cached(:find_or_create_by_title)
  51     assert Topic.respond_to?(:find_or_create_by_title)
  52   end
  53
  54   def test_should_respond_to_find_or_create_from_two_attributes
  55     ensure_topic_method_is_not_cached(:find_or_create_by_title_and_author_name)
  56     assert Topic.respond_to?(:find_or_create_by_title_and_author_name)
  57   end
  58
  59   def test_should_not_respond_to_find_by_one_missing_attribute
  60     assert !Topic.respond_to?(:find_by_undertitle)
  61   end
  62
  63   def test_should_not_respond_to_find_by_invalid_method_syntax
  64     assert !Topic.respond_to?(:fail_to_find_by_title)
  65     assert !Topic.respond_to?(:find_by_title?)
  66     assert !Topic.respond_to?(:fail_to_find_or_create_by_title)
  67     assert !Topic.respond_to?(:find_or_create_by_title?)
  68   end
  69
  70   private
  71
  72   def ensure_topic_method_is_not_cached(method_id)
  73     class << Topic; self; end.send(:remove_method, method_id) if Topic.public_methods.any? { |m| m.to_s == method_id.to_s }
  74   end
  75
  76 end