Merged updates from trunk into stable branch

[feedcatcher.git] / vendor / rails / activerecord / test / cases / associations / eager_load_nested_include_test.rb

diff --git a/vendor/rails/activerecord/test/cases/associations/eager_load_nested_include_test.rb b/vendor/rails/activerecord/test/cases/associations/eager_load_nested_include_test.rb
new file mode 100644 (file)
index 0000000..1b2e0fc
--- /dev/null
+++ b/vendor/rails/activerecord/test/cases/associations/eager_load_nested_include_test.rb
@@ -0,0 +1,130 @@
+require 'cases/helper'
+require 'models/author'
+require 'models/post'
+require 'models/comment'
+require 'models/category'
+require 'models/categorization'
+
+module Remembered
+  def self.included(base)
+    base.extend ClassMethods
+    base.class_eval do
+      after_create :remember
+    protected
+      def remember; self.class.remembered << self; end
+    end
+  end
+
+  module ClassMethods
+    def remembered; @@remembered ||= []; end
+    def rand; @@remembered.rand; end
+  end
+end
+
+class ShapeExpression < ActiveRecord::Base
+  belongs_to :shape, :polymorphic => true
+  belongs_to :paint, :polymorphic => true
+end
+
+class Circle < ActiveRecord::Base
+  has_many :shape_expressions, :as => :shape
+  include Remembered
+end
+class Square < ActiveRecord::Base
+  has_many :shape_expressions, :as => :shape
+  include Remembered
+end
+class Triangle < ActiveRecord::Base
+  has_many :shape_expressions, :as => :shape
+  include Remembered
+end
+class PaintColor  < ActiveRecord::Base
+  has_many   :shape_expressions, :as => :paint
+  belongs_to :non_poly, :foreign_key => "non_poly_one_id", :class_name => "NonPolyOne"
+  include Remembered
+end
+class PaintTexture < ActiveRecord::Base
+  has_many   :shape_expressions, :as => :paint
+  belongs_to :non_poly, :foreign_key => "non_poly_two_id", :class_name => "NonPolyTwo"
+  include Remembered
+end
+class NonPolyOne < ActiveRecord::Base
+  has_many :paint_colors
+  include Remembered
+end
+class NonPolyTwo < ActiveRecord::Base
+  has_many :paint_textures
+  include Remembered
+end
+
+
+
+class EagerLoadPolyAssocsTest < ActiveRecord::TestCase
+  NUM_SIMPLE_OBJS = 50
+  NUM_SHAPE_EXPRESSIONS = 100
+
+  def setup
+    generate_test_object_graphs
+  end
+  
+  def teardown
+    [Circle, Square, Triangle, PaintColor, PaintTexture, 
+     ShapeExpression, NonPolyOne, NonPolyTwo].each do |c|
+      c.delete_all
+    end
+    
+  end
+
+
+  def generate_test_object_graphs
+    1.upto(NUM_SIMPLE_OBJS) do
+      [Circle, Square, Triangle, NonPolyOne, NonPolyTwo].map(&:create!)
+    end
+    1.upto(NUM_SIMPLE_OBJS) do
+      PaintColor.create!(:non_poly_one_id => NonPolyOne.rand.id)
+      PaintTexture.create!(:non_poly_two_id => NonPolyTwo.rand.id)
+    end
+    1.upto(NUM_SHAPE_EXPRESSIONS) do
+      shape_type = [Circle, Square, Triangle].rand
+      paint_type = [PaintColor, PaintTexture].rand
+      ShapeExpression.create!(:shape_type => shape_type.to_s, :shape_id => shape_type.rand.id,
+                              :paint_type => paint_type.to_s, :paint_id => paint_type.rand.id)
+    end
+  end
+
+  def test_include_query
+    res = 0
+    res = ShapeExpression.find :all, :include => [ :shape, { :paint => :non_poly } ]
+    assert_equal NUM_SHAPE_EXPRESSIONS, res.size
+    assert_queries(0) do
+      res.each do |se|
+        assert_not_nil se.paint.non_poly, "this is the association that was loading incorrectly before the change"
+        assert_not_nil se.shape, "just making sure other associations still work"
+      end
+    end
+  end
+end
+
+class EagerLoadNestedIncludeWithMissingDataTest < ActiveRecord::TestCase
+  def setup
+    @davey_mcdave = Author.create(:name => 'Davey McDave')
+    @first_post = @davey_mcdave.posts.create(:title => 'Davey Speaks', :body => 'Expressive wordage')
+    @first_comment = @first_post.comments.create(:body => 'Inflamatory doublespeak')
+    @first_categorization = @davey_mcdave.categorizations.create(:category => Category.first, :post => @first_post)
+  end
+
+  def teardown
+    @davey_mcdave.destroy
+    @first_post.destroy
+    @first_comment.destroy
+    @first_categorization.destroy
+  end
+
+  def test_missing_data_in_a_nested_include_should_not_cause_errors_when_constructing_objects
+    assert_nothing_raised do
+      # @davey_mcdave doesn't have any author_favorites
+      includes = {:posts => :comments, :categorizations => :category, :author_favorites => :favorite_author }
+      Author.all :include => includes, :conditions => {:authors => {:name => @davey_mcdave.name}}, :order => 'categories.name'
+    end
+  end
+end
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