# HG changeset patch
# User tyler.rick <tyler.rick@e8f5f159-813c-0410-8c33-cd1931e36101>
# Date 1192429107 0
# Node ID 7abf2daec7572e3a46030884a1b5d8d80b8152f3
# Parent  ac95efc9417bae4ae152c42fc94160e8976a7c08
Imported tests I'd originally written... Made sure test still passes.

git-svn-id: https://habtm-with-deferred-save.googlecode.com/svn/trunk@3 e8f5f159-813c-0410-8c33-cd1931e36101

diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/init.rb
--- a/has_and_belong_to_many_with_deferred_save/init.rb	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/init.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -1,1 +1,1 @@
-# Include hook code here
\ No newline at end of file
+require File.join(File.dirname(__FILE__), 'lib/has_and_belongs_to_many_with_deferred_save')
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/has_and_belongs_to_many_with_deferred_save_test.rb
--- a/has_and_belong_to_many_with_deferred_save/test/has_and_belongs_to_many_with_deferred_save_test.rb	Mon Oct 15 05:48:30 2007 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,8 +0,0 @@
-require 'test/unit'
-
-class HasAndBelongsToManyWithDeferredSaveTest < Test::Unit::TestCase
-  # Replace this with your real tests.
-  def test_this_plugin
-    flunk
-  end
-end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/app/models/person.rb
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/app/models/person.rb	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/app/models/person.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -1,2 +1,3 @@
 class Person < ActiveRecord::Base
+  has_and_belongs_to_many :room
 end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/app/models/room.rb
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/app/models/room.rb	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/app/models/room.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -1,2 +1,17 @@
 class Room < ActiveRecord::Base
+  has_and_belongs_to_many_with_deferred_save :people, :before_add => :before_adding_person
+
+  def validate
+    if people.size > maximum_occupancy
+      errors.add :people, "There are too many people in this room"
+    end
+  end
+
+  # Just in case they try to bypass our new accessor and call people_without_deferred_save directly...
+  # (This should never be necessary; it is for demonstration purposes only...)
+  def before_adding_person(person)
+    if self.people_without_deferred_save.size + [person].size > maximum_occupancy
+      raise "There are too many people in this room"
+    end
+  end
 end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/db/migrate/001_create_rooms.rb
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/db/migrate/001_create_rooms.rb	Mon Oct 15 05:48:30 2007 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,10 +0,0 @@
-class CreateRooms < ActiveRecord::Migration
-  def self.up
-    create_table :rooms do |t|
-    end
-  end
-
-  def self.down
-    drop_table :rooms
-  end
-end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/db/migrate/001_create_rooms_and_people.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/db/migrate/001_create_rooms_and_people.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,21 @@
+class CreateRoomsAndPeople < ActiveRecord::Migration
+  def self.up
+    create_table :people do |t|
+      t.column :name, :string
+    end
+    create_table :rooms do |t|
+      t.column :name, :string
+      t.column :maximum_occupancy, :integer
+    end
+    create_table :people_rooms do |t|
+      t.column :person_id, :integer
+      t.column :room_id, :integer
+    end
+  end
+
+  def self.down
+    drop_table :people
+    drop_table :rooms
+    drop_table :people_rooms
+  end
+end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/db/migrate/002_create_people.rb
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/db/migrate/002_create_people.rb	Mon Oct 15 05:48:30 2007 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,10 +0,0 @@
-class CreatePeople < ActiveRecord::Migration
-  def self.up
-    create_table :people do |t|
-    end
-  end
-
-  def self.down
-    drop_table :people
-  end
-end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/db/schema.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/db/schema.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,21 @@
+# This file is autogenerated. Instead of editing this file, please use the
+# migrations feature of ActiveRecord to incrementally modify your database, and
+# then regenerate this schema definition.
+
+ActiveRecord::Schema.define(:version => 1) do
+
+  create_table "people", :force => true do |t|
+    t.column "name", :string
+  end
+
+  create_table "people_rooms", :force => true do |t|
+    t.column "person_id", :integer
+    t.column "room_id",   :integer
+  end
+
+  create_table "rooms", :force => true do |t|
+    t.column "name",              :string
+    t.column "maximum_occupancy", :integer
+  end
+
+end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/log/development.log
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/log/development.log	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/log/development.log	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,100 @@
+  SQL (0.000000)   SQLite3::SQLException: no such table: schema_info: SELECT * FROM schema_info
+  SQL (0.000230)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.024843)   CREATE TABLE schema_info (version integer)
+  SQL (0.001990)   INSERT INTO schema_info (version) VALUES(0)
+  SQL (0.000000)   SQLite3::SQLException: table schema_info already exists: CREATE TABLE schema_info (version integer)
+  SQL (0.000331)   SELECT version FROM schema_info
+Migrating to CreateRooms (1)
+  SQL (0.002799)   CREATE TABLE rooms ("id" INTEGER PRIMARY KEY NOT NULL) 
+  SQL (0.001995)   UPDATE schema_info SET version = 1
+  SQL (0.000359)   SELECT version FROM schema_info
+Migrating to CreatePeople (2)
+  SQL (0.009934)   CREATE TABLE people ("id" INTEGER PRIMARY KEY NOT NULL) 
+  SQL (0.002042)   UPDATE schema_info SET version = 2
+  SQL (0.000309)   SELECT * FROM schema_info
+  SQL (0.000367)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000088)   PRAGMA index_list(people)
+  SQL (0.000082)   PRAGMA index_list(rooms)
+  SQL (0.000000)   SQLite3::SQLException: table schema_info already exists: CREATE TABLE schema_info (version integer)
+  SQL (0.000302)   SELECT version FROM schema_info
+  SQL (0.000225)   SELECT version FROM schema_info
+  SQL (0.000000)   SQLite3::SQLException: table schema_info already exists: CREATE TABLE schema_info (version integer)
+  SQL (0.000284)   SELECT version FROM schema_info
+Migrating to CreatePeople (2)
+  SQL (0.009962)   DROP TABLE people
+  SQL (0.002864)   UPDATE schema_info SET version = 1
+  SQL (0.000313)   SELECT version FROM schema_info
+Migrating to CreateRooms (1)
+  SQL (0.002600)   DROP TABLE rooms
+  SQL (0.002322)   UPDATE schema_info SET version = 0
+  SQL (0.000313)   SELECT * FROM schema_info
+  SQL (0.000251)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000000)   SQLite3::SQLException: table schema_info already exists: CREATE TABLE schema_info (version integer)
+  SQL (0.000000)   SQLite3::SQLException: table schema_info already exists: CREATE TABLE schema_info (version integer)
+  SQL (0.000339)   SELECT version FROM schema_info
+Migrating to CreateRoomsAndPeople (1)
+  SQL (0.024409)   CREATE TABLE people ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL) 
+  SQL (0.007128)   CREATE TABLE rooms ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL, "maximum_occupancy" integer DEFAULT NULL) 
+  SQL (0.003440)   CREATE TABLE people_rooms ("id" INTEGER PRIMARY KEY NOT NULL, "person_id" integer DEFAULT NULL, "room_id" integer DEFAULT NULL) 
+  SQL (0.002608)   UPDATE schema_info SET version = 1
+  SQL (0.000318)   SELECT * FROM schema_info
+  SQL (0.000429)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000087)   PRAGMA index_list(people)
+  SQL (0.000085)   PRAGMA index_list(people_rooms)
+  SQL (0.000084)   PRAGMA index_list(rooms)
+  SQL (0.000861)   SELECT * FROM schema_info
+  SQL (0.000564)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000085)   PRAGMA index_list(people)
+  SQL (0.000082)   PRAGMA index_list(people_rooms)
+  SQL (0.000082)   PRAGMA index_list(rooms)
+  SQL (0.000000)   SQLite3::SQLException: no such table: people: DROP TABLE people
+  SQL (0.009971)   CREATE TABLE people ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: people_rooms: DROP TABLE people_rooms
+  SQL (0.002587)   CREATE TABLE people_rooms ("id" INTEGER PRIMARY KEY NOT NULL, "person_id" integer DEFAULT NULL, "room_id" integer DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: rooms: DROP TABLE rooms
+  SQL (0.002565)   CREATE TABLE rooms ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL, "maximum_occupancy" integer DEFAULT NULL) 
+  SQL (0.002742)   CREATE TABLE schema_info (version integer)
+  SQL (0.009701)   INSERT INTO schema_info (version) VALUES(0)
+  SQL (0.002448)   UPDATE schema_info SET version = 1
+  SQL (0.000780)   SELECT * FROM schema_info
+  SQL (0.000436)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000084)   PRAGMA index_list(people)
+  SQL (0.000082)   PRAGMA index_list(people_rooms)
+  SQL (0.000081)   PRAGMA index_list(rooms)
+  SQL (0.000000)   SQLite3::SQLException: no such table: people: DROP TABLE people
+  SQL (0.022222)   CREATE TABLE people ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: people_rooms: DROP TABLE people_rooms
+  SQL (0.004313)   CREATE TABLE people_rooms ("id" INTEGER PRIMARY KEY NOT NULL, "person_id" integer DEFAULT NULL, "room_id" integer DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: rooms: DROP TABLE rooms
+  SQL (0.002948)   CREATE TABLE rooms ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL, "maximum_occupancy" integer DEFAULT NULL) 
+  SQL (0.004096)   CREATE TABLE schema_info (version integer)
+  SQL (0.002451)   INSERT INTO schema_info (version) VALUES(0)
+  SQL (0.004048)   UPDATE schema_info SET version = 1
+  SQL (0.000771)   SELECT * FROM schema_info
+  SQL (0.000434)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000110)   PRAGMA index_list(people)
+  SQL (0.000082)   PRAGMA index_list(people_rooms)
+  SQL (0.000083)   PRAGMA index_list(rooms)
+  SQL (0.000000)   SQLite3::SQLException: no such table: people: DROP TABLE people
+  SQL (0.105043)   CREATE TABLE people ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: people_rooms: DROP TABLE people_rooms
+  SQL (0.003520)   CREATE TABLE people_rooms ("id" INTEGER PRIMARY KEY NOT NULL, "person_id" integer DEFAULT NULL, "room_id" integer DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: rooms: DROP TABLE rooms
+  SQL (0.002869)   CREATE TABLE rooms ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL, "maximum_occupancy" integer DEFAULT NULL) 
+  SQL (0.003102)   CREATE TABLE schema_info (version integer)
+  SQL (0.002188)   INSERT INTO schema_info (version) VALUES(0)
+  SQL (0.002526)   UPDATE schema_info SET version = 1
+  SQL (0.000807)   SELECT * FROM schema_info
+  SQL (0.000434)   SELECT name FROM sqlite_master WHERE type = 'table'
+  SQL (0.000085)   PRAGMA index_list(people)
+  SQL (0.000084)   PRAGMA index_list(people_rooms)
+  SQL (0.000082)   PRAGMA index_list(rooms)
+  SQL (0.000000)   SQLite3::SQLException: no such table: people: DROP TABLE people
+  SQL (0.017608)   CREATE TABLE people ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: people_rooms: DROP TABLE people_rooms
+  SQL (0.002525)   CREATE TABLE people_rooms ("id" INTEGER PRIMARY KEY NOT NULL, "person_id" integer DEFAULT NULL, "room_id" integer DEFAULT NULL) 
+  SQL (0.000000)   SQLite3::SQLException: no such table: rooms: DROP TABLE rooms
+  SQL (0.002427)   CREATE TABLE rooms ("id" INTEGER PRIMARY KEY NOT NULL, "name" varchar(255) DEFAULT NULL, "maximum_occupancy" integer DEFAULT NULL) 
+  SQL (0.002475)   CREATE TABLE schema_info (version integer)
+  SQL (0.009441)   INSERT INTO schema_info (version) VALUES(0)
+  SQL (0.002270)   UPDATE schema_info SET version = 1
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/log/test.log
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/log/test.log	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/log/test.log	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,41 @@
+  Person Load (0.000276)   SELECT * FROM people WHERE (people."id" = 1) 
+  Person Load (0.000221)   SELECT * FROM people WHERE (people."id" = 2) 
+  Room Count (0.000244)   select count(*) from people_rooms
+  SQL (0.000217)   INSERT INTO rooms ("name", "maximum_occupancy") VALUES(NULL, 2)
+  Room Count (0.000198)   select count(*) from people_rooms
+  Person Load (0.000281)   SELECT * FROM people WHERE (people."id" = 1) 
+  Person Load (0.000221)   SELECT * FROM people WHERE (people."id" = 2) 
+  Room Count (0.000225)   select count(*) from people_rooms
+  SQL (0.000227)   INSERT INTO rooms ("name", "maximum_occupancy") VALUES(NULL, 2)
+  SQL (0.000125)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (1, 1, 1)
+  SQL (0.000108)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (2, 1, 2)
+  Room Count (0.000193)   select count(*) from people_rooms
+  Person Load (0.000220)   SELECT * FROM people WHERE (people."id" = 3) 
+  Room Count (0.000184)   select count(*) from people_rooms
+  Person Load (0.000278)   SELECT * FROM people WHERE (people."id" = 1) 
+  Person Load (0.000227)   SELECT * FROM people WHERE (people."id" = 2) 
+  Room Count (0.000227)   select count(*) from people_rooms
+  SQL (0.000224)   INSERT INTO rooms ("name", "maximum_occupancy") VALUES(NULL, 2)
+  SQL (0.000122)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (1, 1, 1)
+  SQL (0.000102)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (2, 1, 2)
+  Room Count (0.000189)   select count(*) from people_rooms
+  Person Load (0.000220)   SELECT * FROM people WHERE (people."id" = 3) 
+  Room Count (0.000183)   select count(*) from people_rooms
+  Room Count (0.000186)   select count(*) from people_rooms
+  Room Load (0.000239)   SELECT * FROM rooms WHERE (rooms."id" = 1) 
+  Person Load (0.000444)   SELECT * FROM people INNER JOIN people_rooms ON people.id = people_rooms.person_id WHERE (people_rooms.room_id = 1 ) 
+  Room Count (0.000199)   select count(*) from people_rooms
+  SQL (0.000110)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (3, 1, 3)
+  Person Load (0.000276)   SELECT * FROM people WHERE (people."id" = 1) 
+  Person Load (0.000219)   SELECT * FROM people WHERE (people."id" = 2) 
+  Room Count (0.000224)   select count(*) from people_rooms
+  SQL (0.000245)   INSERT INTO rooms ("name", "maximum_occupancy") VALUES(NULL, 2)
+  SQL (0.000121)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (1, 1, 1)
+  SQL (0.000103)   INSERT INTO people_rooms ("id", "room_id", "person_id") VALUES (2, 1, 2)
+  Room Count (0.000190)   select count(*) from people_rooms
+  Person Load (0.000234)   SELECT * FROM people WHERE (people."id" = 3) 
+  Room Count (0.000183)   select count(*) from people_rooms
+  Room Count (0.000188)   select count(*) from people_rooms
+  Room Load (0.000237)   SELECT * FROM rooms WHERE (rooms."id" = 1) 
+  Person Load (0.000442)   SELECT * FROM people INNER JOIN people_rooms ON people.id = people_rooms.person_id WHERE (people_rooms.room_id = 1 ) 
+  Room Count (0.000206)   select count(*) from people_rooms
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/fixtures/people.yml
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/test/fixtures/people.yml	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/test/fixtures/people.yml	Mon Oct 15 06:18:27 2007 +0000
@@ -1,5 +1,7 @@
 # Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
-one:
+person1:
   id: 1
-two:
+person2:
   id: 2
+person3:
+  id: 3
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/fixtures/rooms.yml
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/test/fixtures/rooms.yml	Mon Oct 15 05:48:30 2007 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/test/fixtures/rooms.yml	Mon Oct 15 06:18:27 2007 +0000
@@ -1,5 +1,5 @@
 # Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
-one:
+first:
   id: 1
-two:
+another:
   id: 2
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/person_test.rb
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/person_test.rb	Mon Oct 15 05:48:30 2007 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,10 +0,0 @@
-require File.dirname(__FILE__) + '/../test_helper'
-
-class PersonTest < Test::Unit::TestCase
-  fixtures :people
-
-  # Replace this with your real tests.
-  def test_truth
-    assert true
-  end
-end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,56 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class RoomMaximumOccupancyTest < Test::Unit::TestCase
+  fixtures :people
+
+#  def test_1
+#    room = Room.new(:maximum_occupancy => 4)
+#    room.maximum_occupancy = 10
+#
+#    assert_equal 10, room.maximum_occupancy   # Still invalid
+#    assert_equal false, room.save
+#    assert_equal "You can't have the maximum set so high", room.errors.on(:maximum_occupancy)
+#    assert_equal 10, room.maximum_occupancy   # Still invalid
+#  end
+
+  def test_maximum_occupancy
+    room = Room.new(:maximum_occupancy => 2)
+    assert_equal [], room.people
+    assert_equal [], room.people_without_deferred_save
+    assert_not_equal room.unsaved_people.object_id, 
+                     room.people_without_deferred_save.object_id
+
+    assert_nothing_raised { room.people << people(:person1) }
+    assert_nothing_raised { room.people << people(:person2) }
+    assert_equal 0, Room.count_by_sql("select count(*) from people_rooms")  # Still not saved to the association table!
+    assert_equal 0, room.people_without_deferred_save.size
+    assert_equal 2, room.people.size        # 2 because this looks at unsaved_people
+
+    assert room.save    # Only here is it actually saved to the association table!
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 2, room.people.size
+    assert_equal 2, room.people_without_deferred_save.size
+
+    assert_nothing_raised { room.people << people(:person3) }
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")  # person3 is not yet saved to the association table
+    assert_equal false, room.valid?
+    assert_equal "There are too many people in this room", room.errors.on(:people)
+
+    assert_equal false, room.save
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")  # It's still not there, because it didn't pass the validation.
+    assert_equal "There are too many people in this room", room.errors.on(:people)
+    assert_equal 3, room.people.size    # Just like with normal attributes that fail validation... the attribute still contains the invalid data but we refuse to save until it is changed to something that is *valid*.
+
+    room.reload
+    assert_equal 2, room.people.size
+    assert_equal 2, room.people_without_deferred_save.size
+
+    assert_nothing_raised { room.people << people(:person3) }
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")  # person3 is not yet saved to the association table
+
+    # If they try to go around our accessors and use the original accessors, then (and only then) will the exception be raised in before_adding_person...
+    assert_raise RuntimeError do
+      room.people_without_deferred_save << people(:person3)
+    end
+  end
+end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test_1.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test_1.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,26 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class RoomMaximumOccupancyTest < Test::Unit::TestCase
+  fixtures :people
+
+  def test_maximum_occupancy
+    room = Room.new(:maximum_occupancy => 2)
+    assert_equal 0, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 0, room.people.size
+
+    room.people << people(:person1)
+    room.people << people(:person2)
+    assert room.save
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 2, room.people.size
+
+    room.people << people(:person3)
+    #assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")  # FAILS because it saves it in people_rooms before we even call room.save !
+
+    assert_equal false, room.save
+    # Good, it has the error ... 
+    assert_equal "There are too many people in this room", room.errors.on(:people)
+    # ... but it's too late. It didn't prevent the invalid data from getting in there!
+    #assert_equal 2, room.people.size  # FAILS
+  end
+end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test_2.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test_2.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,31 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class RoomMaximumOccupancyTest < Test::Unit::TestCase
+  fixtures :people
+
+  def test_maximum_occupancy_using_build
+    room = Room.new(:maximum_occupancy => 2)
+    assert_equal 0, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 0, room.people.size
+
+    room.people.build(:name => 'person1')
+    room.people.build(:name => 'person2')
+    assert room.save
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 2, room.people.size
+
+    room.people.build(:name => 'person3')
+    # Good, it prevented it from being saved to the database ...
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")
+    # ... but it still added it to the collection stored in memory!
+    #assert_equal 2, room.people.size  # Still FAILs. It thinks it has 3, even though the 3rd one is invalid.
+
+    assert_equal false, room.save
+    assert_equal "There are too many people in this room", room.errors.on(:people)
+
+    # If we reload from what is stored in memory, it will still just have the 2 valid people...
+    room.reload
+    assert_equal 2, room.people.size
+  end
+
+end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test_3.rb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_maximum_occupancy_test_3.rb	Mon Oct 15 06:18:27 2007 +0000
@@ -0,0 +1,33 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class RoomMaximumOccupancyTest < Test::Unit::TestCase
+  fixtures :people
+
+  def test_maximum_occupancy
+    room = Room.new(:maximum_occupancy => 2)
+    assert_equal 0, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 0, room.people.size
+
+    assert_nothing_raised { room.people << people(:person1) }
+    assert_nothing_raised { room.people << people(:person2) }
+    assert room.save
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")
+    assert_equal 2, room.people.size
+
+    assert_raise RuntimeError do
+      room.people << people(:person3)
+    end
+    assert_equal 2, Room.count_by_sql("select count(*) from people_rooms")
+
+    assert_equal "There are too many people in this room", room.errors.on(:people)  # Passes (for now!)
+
+    # But as soon as I go to save it, it clears out the errors array!! Arg!
+    room.save
+    #assert_equal "There are too many people in this room", room.errors.on(:people)  # FAILS
+
+    #assert_equal false, room.valid?  # FAILS
+    #assert_equal false, room.save    # FAILS
+    assert_equal 2, room.people.size
+  end
+
+end
diff -r ac95efc9417bae4ae152c42fc94160e8976a7c08 -r 7abf2daec7572e3a46030884a1b5d8d80b8152f3 has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_test.rb
--- a/has_and_belong_to_many_with_deferred_save/test/rails_root/test/unit/room_test.rb	Mon Oct 15 05:48:30 2007 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,10 +0,0 @@
-require File.dirname(__FILE__) + '/../test_helper'
-
-class RoomTest < Test::Unit::TestCase
-  fixtures :rooms
-
-  # Replace this with your real tests.
-  def test_truth
-    assert true
-  end
-end