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

   1 require "cases/helper"
   2 require 'models/author'
   3 require 'models/categorization'
   4 require 'models/comment'
   5 require 'models/company'
   6 require 'models/topic'
   7 require 'models/reply'
   8 require 'models/entrant'
   9 require 'models/developer'
  10 require 'models/post'
  11 require 'models/customer'
  12 require 'models/job'
  13 require 'models/categorization'
  14
  15 class DynamicFinderMatchTest < ActiveRecord::TestCase
  16   def test_find_no_match
  17     assert_nil ActiveRecord::DynamicFinderMatch.match("not_a_finder")
  18   end
  19
  20   def test_find_by
  21     match = ActiveRecord::DynamicFinderMatch.match("find_by_age_and_sex_and_location")
  22     assert_not_nil match
  23     assert match.finder?
  24     assert_equal :first, match.finder
  25     assert_equal %w(age sex location), match.attribute_names
  26   end
  27
  28   def find_by_bang
  29     match = ActiveRecord::DynamicFinderMatch.match("find_by_age_and_sex_and_location!")
  30     assert_not_nil match
  31     assert match.finder?
  32     assert match.bang?
  33     assert_equal :first, match.finder
  34     assert_equal %w(age sex location), match.attribute_names
  35   end
  36
  37   def test_find_all_by
  38     match = ActiveRecord::DynamicFinderMatch.match("find_all_by_age_and_sex_and_location")
  39     assert_not_nil match
  40     assert match.finder?
  41     assert_equal :all, match.finder
  42     assert_equal %w(age sex location), match.attribute_names
  43   end
  44
  45   def test_find_or_initialize_by
  46     match = ActiveRecord::DynamicFinderMatch.match("find_or_initialize_by_age_and_sex_and_location")
  47     assert_not_nil match
  48     assert !match.finder?
  49     assert match.instantiator?
  50     assert_equal :first, match.finder
  51     assert_equal :new, match.instantiator
  52     assert_equal %w(age sex location), match.attribute_names
  53   end
  54
  55   def test_find_or_create_by
  56     match = ActiveRecord::DynamicFinderMatch.match("find_or_create_by_age_and_sex_and_location")
  57     assert_not_nil match
  58     assert !match.finder?
  59     assert match.instantiator?
  60     assert_equal :first, match.finder
  61     assert_equal :create, match.instantiator
  62     assert_equal %w(age sex location), match.attribute_names
  63   end
  64 end
  65
  66 class FinderTest < ActiveRecord::TestCase
  67   fixtures :companies, :topics, :entrants, :developers, :developers_projects, :posts, :comments, :accounts, :authors, :customers
  68
  69   def test_find
  70     assert_equal(topics(:first).title, Topic.find(1).title)
  71   end
  72
  73   # find should handle strings that come from URLs
  74   # (example: Category.find(params[:id]))
  75   def test_find_with_string
  76     assert_equal(Topic.find(1).title,Topic.find("1").title)
  77   end
  78
  79   def test_exists
  80     assert Topic.exists?(1)
  81     assert Topic.exists?("1")
  82     assert Topic.exists?(:author_name => "David")
  83     assert Topic.exists?(:author_name => "Mary", :approved => true)
  84     assert Topic.exists?(["parent_id = ?", 1])
  85     assert !Topic.exists?(45)
  86
  87     begin
  88       assert !Topic.exists?("foo")
  89     rescue ActiveRecord::StatementInvalid
  90       # PostgreSQL complains about string comparison with integer field
  91     rescue Exception
  92       flunk
  93     end
  94
  95     assert_raise(NoMethodError) { Topic.exists?([1,2]) }
  96   end
  97
  98   def test_exists_with_aggregate_having_three_mappings
  99     existing_address = customers(:david).address
 100     assert Customer.exists?(:address => existing_address)
 101   end
 102
 103   def test_exists_with_aggregate_having_three_mappings_with_one_difference
 104     existing_address = customers(:david).address
 105     assert !Customer.exists?(:address =>
 106       Address.new(existing_address.street, existing_address.city, existing_address.country + "1"))
 107     assert !Customer.exists?(:address =>
 108       Address.new(existing_address.street, existing_address.city + "1", existing_address.country))
 109     assert !Customer.exists?(:address =>
 110       Address.new(existing_address.street + "1", existing_address.city, existing_address.country))
 111   end
 112
 113   def test_find_by_array_of_one_id
 114     assert_kind_of(Array, Topic.find([ 1 ]))
 115     assert_equal(1, Topic.find([ 1 ]).length)
 116   end
 117
 118   def test_find_by_ids
 119     assert_equal 2, Topic.find(1, 2).size
 120     assert_equal topics(:second).title, Topic.find([2]).first.title
 121   end
 122
 123   def test_find_by_ids_with_limit_and_offset
 124     assert_equal 2, Entrant.find([1,3,2], :limit => 2).size
 125     assert_equal 1, Entrant.find([1,3,2], :limit => 3, :offset => 2).size
 126
 127     # Also test an edge case: If you have 11 results, and you set a
 128     #   limit of 3 and offset of 9, then you should find that there
 129     #   will be only 2 results, regardless of the limit.
 130     devs = Developer.find :all
 131     last_devs = Developer.find devs.map(&:id), :limit => 3, :offset => 9
 132     assert_equal 2, last_devs.size
 133   end
 134
 135   def test_find_an_empty_array
 136     assert_equal [], Topic.find([])
 137   end
 138
 139   def test_find_by_ids_missing_one
 140     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, 2, 45) }
 141   end
 142
 143   def test_find_all_with_limit
 144     entrants = Entrant.find(:all, :order => "id ASC", :limit => 2)
 145
 146     assert_equal(2, entrants.size)
 147     assert_equal(entrants(:first).name, entrants.first.name)
 148   end
 149
 150   def test_find_all_with_prepared_limit_and_offset
 151     entrants = Entrant.find(:all, :order => "id ASC", :limit => 2, :offset => 1)
 152
 153     assert_equal(2, entrants.size)
 154     assert_equal(entrants(:second).name, entrants.first.name)
 155
 156     entrants = Entrant.find(:all, :order => "id ASC", :limit => 2, :offset => 2)
 157     assert_equal(1, entrants.size)
 158     assert_equal(entrants(:third).name, entrants.first.name)
 159   end
 160
 161   def test_find_all_with_limit_and_offset_and_multiple_orderings
 162     developers = Developer.find(:all, :order => "salary ASC, id DESC", :limit => 3, :offset => 1)
 163     assert_equal ["David", "fixture_10", "fixture_9"], developers.collect {|d| d.name}
 164   end
 165
 166   def test_find_with_limit_and_condition
 167     developers = Developer.find(:all, :order => "id DESC", :conditions => "salary = 100000", :limit => 3, :offset =>7)
 168     assert_equal(1, developers.size)
 169     assert_equal("fixture_3", developers.first.name)
 170   end
 171
 172   def test_find_with_group
 173     developers =  Developer.find(:all, :group => "salary", :select => "salary")
 174     assert_equal 4, developers.size
 175     assert_equal 4, developers.map(&:salary).uniq.size
 176   end
 177
 178   def test_find_with_entire_select_statement
 179     topics = Topic.find_by_sql "SELECT * FROM topics WHERE author_name = 'Mary'"
 180
 181     assert_equal(1, topics.size)
 182     assert_equal(topics(:second).title, topics.first.title)
 183   end
 184
 185   def test_find_with_prepared_select_statement
 186     topics = Topic.find_by_sql ["SELECT * FROM topics WHERE author_name = ?", "Mary"]
 187
 188     assert_equal(1, topics.size)
 189     assert_equal(topics(:second).title, topics.first.title)
 190   end
 191
 192   def test_find_by_sql_with_sti_on_joined_table
 193     accounts = Account.find_by_sql("SELECT * FROM accounts INNER JOIN companies ON companies.id = accounts.firm_id")
 194     assert_equal [Account], accounts.collect(&:class).uniq
 195   end
 196
 197   def test_find_first
 198     first = Topic.find(:first, :conditions => "title = 'The First Topic'")
 199     assert_equal(topics(:first).title, first.title)
 200   end
 201
 202   def test_find_first_failing
 203     first = Topic.find(:first, :conditions => "title = 'The First Topic!'")
 204     assert_nil(first)
 205   end
 206
 207   def test_first
 208     assert_equal topics(:second).title, Topic.first(:conditions => "title = 'The Second Topic of the day'").title
 209   end
 210
 211   def test_first_failing
 212     assert_nil Topic.first(:conditions => "title = 'The Second Topic of the day!'")
 213   end
 214
 215   def test_unexisting_record_exception_handling
 216     assert_raises(ActiveRecord::RecordNotFound) {
 217       Topic.find(1).parent
 218     }
 219
 220     Topic.find(2).topic
 221   end
 222
 223   def test_find_only_some_columns
 224     topic = Topic.find(1, :select => "author_name")
 225     assert_raises(ActiveRecord::MissingAttributeError) {topic.title}
 226     assert_equal "David", topic.author_name
 227     assert !topic.attribute_present?("title")
 228     #assert !topic.respond_to?("title")
 229     assert topic.attribute_present?("author_name")
 230     assert topic.respond_to?("author_name")
 231   end
 232
 233   def test_find_on_blank_conditions
 234     [nil, " ", [], {}].each do |blank|
 235       assert_nothing_raised { Topic.find(:first, :conditions => blank) }
 236     end
 237   end
 238
 239   def test_find_on_blank_bind_conditions
 240     [ [""], ["",{}] ].each do |blank|
 241       assert_nothing_raised { Topic.find(:first, :conditions => blank) }
 242     end
 243   end
 244
 245   def test_find_on_array_conditions
 246     assert Topic.find(1, :conditions => ["approved = ?", false])
 247     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => ["approved = ?", true]) }
 248   end
 249
 250   def test_find_on_hash_conditions
 251     assert Topic.find(1, :conditions => { :approved => false })
 252     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => { :approved => true }) }
 253   end
 254
 255   def test_find_on_hash_conditions_with_explicit_table_name
 256     assert Topic.find(1, :conditions => { 'topics.approved' => false })
 257     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => { 'topics.approved' => true }) }
 258   end
 259
 260   def test_find_on_hash_conditions_with_hashed_table_name
 261     assert Topic.find(1, :conditions => {:topics => { :approved => false }})
 262     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => {:topics => { :approved => true }}) }
 263   end
 264
 265   def test_find_with_hash_conditions_on_joined_table
 266     firms = Firm.all :joins => :account, :conditions => {:accounts => { :credit_limit => 50 }}
 267     assert_equal 1, firms.size
 268     assert_equal companies(:first_firm), firms.first
 269   end
 270
 271   def test_find_with_hash_conditions_on_joined_table_and_with_range
 272     firms = DependentFirm.all :joins => :account, :conditions => {:name => 'RailsCore', :accounts => { :credit_limit => 55..60 }}
 273     assert_equal 1, firms.size
 274     assert_equal companies(:rails_core), firms.first
 275   end
 276
 277   def test_find_on_hash_conditions_with_explicit_table_name_and_aggregate
 278     david = customers(:david)
 279     assert Customer.find(david.id, :conditions => { 'customers.name' => david.name, :address => david.address })
 280     assert_raises(ActiveRecord::RecordNotFound) {
 281       Customer.find(david.id, :conditions => { 'customers.name' => david.name + "1", :address => david.address })
 282     }
 283   end
 284
 285   def test_find_on_association_proxy_conditions
 286     assert_equal [1, 2, 3, 5, 6, 7, 8, 9, 10], Comment.find_all_by_post_id(authors(:david).posts).map(&:id).sort
 287   end
 288
 289   def test_find_on_hash_conditions_with_range
 290     assert_equal [1,2], Topic.find(:all, :conditions => { :id => 1..2 }).map(&:id).sort
 291     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => { :id => 2..3 }) }
 292   end
 293
 294   def test_find_on_hash_conditions_with_multiple_ranges
 295     assert_equal [1,2,3], Comment.find(:all, :conditions => { :id => 1..3, :post_id => 1..2 }).map(&:id).sort
 296     assert_equal [1], Comment.find(:all, :conditions => { :id => 1..1, :post_id => 1..10 }).map(&:id).sort
 297   end
 298
 299   def test_find_on_multiple_hash_conditions
 300     assert Topic.find(1, :conditions => { :author_name => "David", :title => "The First Topic", :replies_count => 1, :approved => false })
 301     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => { :author_name => "David", :title => "The First Topic", :replies_count => 1, :approved => true }) }
 302     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => { :author_name => "David", :title => "HHC", :replies_count => 1, :approved => false }) }
 303     assert_raises(ActiveRecord::RecordNotFound) { Topic.find(1, :conditions => { :author_name => "David", :title => "The First Topic", :replies_count => 1, :approved => true }) }
 304   end
 305
 306   def test_condition_interpolation
 307     assert_kind_of Firm, Company.find(:first, :conditions => ["name = '%s'", "37signals"])
 308     assert_nil Company.find(:first, :conditions => ["name = '%s'", "37signals!"])
 309     assert_nil Company.find(:first, :conditions => ["name = '%s'", "37signals!' OR 1=1"])
 310     assert_kind_of Time, Topic.find(:first, :conditions => ["id = %d", 1]).written_on
 311   end
 312
 313   def test_condition_array_interpolation
 314     assert_kind_of Firm, Company.find(:first, :conditions => ["name = '%s'", "37signals"])
 315     assert_nil Company.find(:first, :conditions => ["name = '%s'", "37signals!"])
 316     assert_nil Company.find(:first, :conditions => ["name = '%s'", "37signals!' OR 1=1"])
 317     assert_kind_of Time, Topic.find(:first, :conditions => ["id = %d", 1]).written_on
 318   end
 319
 320   def test_condition_hash_interpolation
 321     assert_kind_of Firm, Company.find(:first, :conditions => { :name => "37signals"})
 322     assert_nil Company.find(:first, :conditions => { :name => "37signals!"})
 323     assert_kind_of Time, Topic.find(:first, :conditions => {:id => 1}).written_on
 324   end
 325
 326   def test_hash_condition_find_malformed
 327     assert_raises(ActiveRecord::StatementInvalid) {
 328       Company.find(:first, :conditions => { :id => 2, :dhh => true })
 329     }
 330   end
 331
 332   def test_hash_condition_find_with_escaped_characters
 333     Company.create("name" => "Ain't noth'n like' \#stuff")
 334     assert Company.find(:first, :conditions => { :name => "Ain't noth'n like' \#stuff" })
 335   end
 336
 337   def test_hash_condition_find_with_array
 338     p1, p2 = Post.find(:all, :limit => 2, :order => 'id asc')
 339     assert_equal [p1, p2], Post.find(:all, :conditions => { :id => [p1, p2] }, :order => 'id asc')
 340     assert_equal [p1, p2], Post.find(:all, :conditions => { :id => [p1, p2.id] }, :order => 'id asc')
 341   end
 342
 343   def test_hash_condition_find_with_nil
 344     topic = Topic.find(:first, :conditions => { :last_read => nil } )
 345     assert_not_nil topic
 346     assert_nil topic.last_read
 347   end
 348
 349   def test_hash_condition_find_with_aggregate_having_one_mapping
 350     balance = customers(:david).balance
 351     assert_kind_of Money, balance
 352     found_customer = Customer.find(:first, :conditions => {:balance => balance})
 353     assert_equal customers(:david), found_customer
 354   end
 355
 356   def test_hash_condition_find_with_aggregate_attribute_having_same_name_as_field_and_key_value_being_aggregate
 357     gps_location = customers(:david).gps_location
 358     assert_kind_of GpsLocation, gps_location
 359     found_customer = Customer.find(:first, :conditions => {:gps_location => gps_location})
 360     assert_equal customers(:david), found_customer
 361   end
 362
 363   def test_hash_condition_find_with_aggregate_having_one_mapping_and_key_value_being_attribute_value
 364     balance = customers(:david).balance
 365     assert_kind_of Money, balance
 366     found_customer = Customer.find(:first, :conditions => {:balance => balance.amount})
 367     assert_equal customers(:david), found_customer
 368   end
 369
 370   def test_hash_condition_find_with_aggregate_attribute_having_same_name_as_field_and_key_value_being_attribute_value
 371     gps_location = customers(:david).gps_location
 372     assert_kind_of GpsLocation, gps_location
 373     found_customer = Customer.find(:first, :conditions => {:gps_location => gps_location.gps_location})
 374     assert_equal customers(:david), found_customer
 375   end
 376
 377   def test_hash_condition_find_with_aggregate_having_three_mappings
 378     address = customers(:david).address
 379     assert_kind_of Address, address
 380     found_customer = Customer.find(:first, :conditions => {:address => address})
 381     assert_equal customers(:david), found_customer
 382   end
 383
 384   def test_hash_condition_find_with_one_condition_being_aggregate_and_another_not
 385     address = customers(:david).address
 386     assert_kind_of Address, address
 387     found_customer = Customer.find(:first, :conditions => {:address => address, :name => customers(:david).name})
 388     assert_equal customers(:david), found_customer
 389   end
 390
 391   def test_bind_variables
 392     assert_kind_of Firm, Company.find(:first, :conditions => ["name = ?", "37signals"])
 393     assert_nil Company.find(:first, :conditions => ["name = ?", "37signals!"])
 394     assert_nil Company.find(:first, :conditions => ["name = ?", "37signals!' OR 1=1"])
 395     assert_kind_of Time, Topic.find(:first, :conditions => ["id = ?", 1]).written_on
 396     assert_raises(ActiveRecord::PreparedStatementInvalid) {
 397       Company.find(:first, :conditions => ["id=? AND name = ?", 2])
 398     }
 399     assert_raises(ActiveRecord::PreparedStatementInvalid) {
 400      Company.find(:first, :conditions => ["id=?", 2, 3, 4])
 401     }
 402   end
 403
 404   def test_bind_variables_with_quotes
 405     Company.create("name" => "37signals' go'es agains")
 406     assert Company.find(:first, :conditions => ["name = ?", "37signals' go'es agains"])
 407   end
 408
 409   def test_named_bind_variables_with_quotes
 410     Company.create("name" => "37signals' go'es agains")
 411     assert Company.find(:first, :conditions => ["name = :name", {:name => "37signals' go'es agains"}])
 412   end
 413
 414   def test_bind_arity
 415     assert_nothing_raised                                 { bind '' }
 416     assert_raises(ActiveRecord::PreparedStatementInvalid) { bind '', 1 }
 417
 418     assert_raises(ActiveRecord::PreparedStatementInvalid) { bind '?' }
 419     assert_nothing_raised                                 { bind '?', 1 }
 420     assert_raises(ActiveRecord::PreparedStatementInvalid) { bind '?', 1, 1  }
 421   end
 422
 423   def test_named_bind_variables
 424     assert_equal '1', bind(':a', :a => 1) # ' ruby-mode
 425     assert_equal '1 1', bind(':a :a', :a => 1)  # ' ruby-mode
 426
 427     assert_nothing_raised { bind("'+00:00'", :foo => "bar") }
 428
 429     assert_kind_of Firm, Company.find(:first, :conditions => ["name = :name", { :name => "37signals" }])
 430     assert_nil Company.find(:first, :conditions => ["name = :name", { :name => "37signals!" }])
 431     assert_nil Company.find(:first, :conditions => ["name = :name", { :name => "37signals!' OR 1=1" }])
 432     assert_kind_of Time, Topic.find(:first, :conditions => ["id = :id", { :id => 1 }]).written_on
 433   end
 434
 435   def test_bind_enumerable
 436     quoted_abc = %(#{ActiveRecord::Base.connection.quote('a')},#{ActiveRecord::Base.connection.quote('b')},#{ActiveRecord::Base.connection.quote('c')})
 437
 438     assert_equal '1,2,3', bind('?', [1, 2, 3])
 439     assert_equal quoted_abc, bind('?', %w(a b c))
 440
 441     assert_equal '1,2,3', bind(':a', :a => [1, 2, 3])
 442     assert_equal quoted_abc, bind(':a', :a => %w(a b c)) # '
 443
 444     require 'set'
 445     assert_equal '1,2,3', bind('?', Set.new([1, 2, 3]))
 446     assert_equal quoted_abc, bind('?', Set.new(%w(a b c)))
 447
 448     assert_equal '1,2,3', bind(':a', :a => Set.new([1, 2, 3]))
 449     assert_equal quoted_abc, bind(':a', :a => Set.new(%w(a b c))) # '
 450   end
 451
 452   def test_bind_empty_enumerable
 453     quoted_nil = ActiveRecord::Base.connection.quote(nil)
 454     assert_equal quoted_nil, bind('?', [])
 455     assert_equal " in (#{quoted_nil})", bind(' in (?)', [])
 456     assert_equal "foo in (#{quoted_nil})", bind('foo in (?)', [])
 457   end
 458
 459   def test_bind_string
 460     assert_equal ActiveRecord::Base.connection.quote(''), bind('?', '')
 461   end
 462
 463   def test_bind_chars
 464     quoted_bambi = ActiveRecord::Base.connection.quote("Bambi")
 465     quoted_bambi_and_thumper = ActiveRecord::Base.connection.quote("Bambi\nand\nThumper")
 466     assert_equal "name=#{quoted_bambi}", bind('name=?', "Bambi")
 467     assert_equal "name=#{quoted_bambi_and_thumper}", bind('name=?', "Bambi\nand\nThumper")
 468     assert_equal "name=#{quoted_bambi}", bind('name=?', "Bambi".mb_chars)
 469     assert_equal "name=#{quoted_bambi_and_thumper}", bind('name=?', "Bambi\nand\nThumper".mb_chars)
 470   end
 471
 472   def test_bind_record
 473     o = Struct.new(:quoted_id).new(1)
 474     assert_equal '1', bind('?', o)
 475
 476     os = [o] * 3
 477     assert_equal '1,1,1', bind('?', os)
 478   end
 479
 480   def test_named_bind_with_postgresql_type_casts
 481     l = Proc.new { bind(":a::integer '2009-01-01'::date", :a => '10') }
 482     assert_nothing_raised(&l)
 483     assert_equal "#{ActiveRecord::Base.quote_value('10')}::integer '2009-01-01'::date", l.call
 484   end
 485
 486   def test_string_sanitation
 487     assert_not_equal "#{ActiveRecord::Base.connection.quoted_string_prefix}'something ' 1=1'", ActiveRecord::Base.sanitize("something ' 1=1")
 488     assert_equal "#{ActiveRecord::Base.connection.quoted_string_prefix}'something; select table'", ActiveRecord::Base.sanitize("something; select table")
 489   end
 490
 491   def test_count
 492     assert_equal(0, Entrant.count(:conditions => "id > 3"))
 493     assert_equal(1, Entrant.count(:conditions => ["id > ?", 2]))
 494     assert_equal(2, Entrant.count(:conditions => ["id > ?", 1]))
 495   end
 496
 497   def test_count_by_sql
 498     assert_equal(0, Entrant.count_by_sql("SELECT COUNT(*) FROM entrants WHERE id > 3"))
 499     assert_equal(1, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 2]))
 500     assert_equal(2, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 1]))
 501   end
 502
 503   uses_mocha('test_dynamic_finder_should_go_through_the_find_class_method') do
 504     def test_dynamic_finders_should_go_through_the_find_class_method
 505       Topic.expects(:find).with(:first, :conditions => { :title => 'The First Topic!' })
 506       Topic.find_by_title("The First Topic!")
 507
 508       Topic.expects(:find).with(:last, :conditions => { :title => 'The Last Topic!' })
 509       Topic.find_last_by_title("The Last Topic!")
 510
 511       Topic.expects(:find).with(:all, :conditions => { :title => 'A Topic.' })
 512       Topic.find_all_by_title("A Topic.")
 513
 514       Topic.expects(:find).with(:first, :conditions => { :title => 'Does not exist yet for sure!' }).times(2)
 515       Topic.find_or_initialize_by_title('Does not exist yet for sure!')
 516       Topic.find_or_create_by_title('Does not exist yet for sure!')
 517     end
 518   end
 519
 520   def test_find_by_one_attribute
 521     assert_equal topics(:first), Topic.find_by_title("The First Topic")
 522     assert_nil Topic.find_by_title("The First Topic!")
 523   end
 524
 525   def test_find_by_one_attribute_bang
 526     assert_equal topics(:first), Topic.find_by_title!("The First Topic")
 527     assert_raises(ActiveRecord::RecordNotFound) { Topic.find_by_title!("The First Topic!") }
 528   end
 529
 530   def test_find_by_one_attribute_caches_dynamic_finder
 531     # ensure this test can run independently of order
 532     class << Topic; self; end.send(:remove_method, :find_by_title) if Topic.public_methods.any? { |m| m.to_s == 'find_by_title' }
 533     assert !Topic.public_methods.any? { |m| m.to_s == 'find_by_title' }
 534     t = Topic.find_by_title("The First Topic")
 535     assert Topic.public_methods.any? { |m| m.to_s == 'find_by_title' }
 536   end
 537
 538   def test_dynamic_finder_returns_same_results_after_caching
 539     # ensure this test can run independently of order
 540     class << Topic; self; end.send(:remove_method, :find_by_title) if Topic.public_method_defined?(:find_by_title)
 541     t = Topic.find_by_title("The First Topic")
 542     assert_equal t, Topic.find_by_title("The First Topic") # find_by_title has been cached
 543   end
 544
 545   def test_find_by_one_attribute_with_order_option
 546     assert_equal accounts(:signals37), Account.find_by_credit_limit(50, :order => 'id')
 547     assert_equal accounts(:rails_core_account), Account.find_by_credit_limit(50, :order => 'id DESC')
 548   end
 549
 550   def test_find_by_one_attribute_with_conditions
 551     assert_equal accounts(:rails_core_account), Account.find_by_credit_limit(50, :conditions => ['firm_id = ?', 6])
 552   end
 553
 554   def test_find_by_one_attribute_that_is_an_aggregate
 555     address = customers(:david).address
 556     assert_kind_of Address, address
 557     found_customer = Customer.find_by_address(address)
 558     assert_equal customers(:david), found_customer
 559   end
 560
 561   def test_find_by_one_attribute_that_is_an_aggregate_with_one_attribute_difference
 562     address = customers(:david).address
 563     assert_kind_of Address, address
 564     missing_address = Address.new(address.street, address.city, address.country + "1")
 565     assert_nil Customer.find_by_address(missing_address)
 566     missing_address = Address.new(address.street, address.city + "1", address.country)
 567     assert_nil Customer.find_by_address(missing_address)
 568     missing_address = Address.new(address.street + "1", address.city, address.country)
 569     assert_nil Customer.find_by_address(missing_address)
 570   end
 571
 572   def test_find_by_two_attributes_that_are_both_aggregates
 573     balance = customers(:david).balance
 574     address = customers(:david).address
 575     assert_kind_of Money, balance
 576     assert_kind_of Address, address
 577     found_customer = Customer.find_by_balance_and_address(balance, address)
 578     assert_equal customers(:david), found_customer
 579   end
 580
 581   def test_find_by_two_attributes_with_one_being_an_aggregate
 582     balance = customers(:david).balance
 583     assert_kind_of Money, balance
 584     found_customer = Customer.find_by_balance_and_name(balance, customers(:david).name)
 585     assert_equal customers(:david), found_customer
 586   end
 587
 588   def test_dynamic_finder_on_one_attribute_with_conditions_caches_method
 589     # ensure this test can run independently of order
 590     class << Account; self; end.send(:remove_method, :find_by_credit_limit) if Account.public_methods.any? { |m| m.to_s == 'find_by_credit_limit' }
 591     assert !Account.public_methods.any? { |m| m.to_s == 'find_by_credit_limit' }
 592     a = Account.find_by_credit_limit(50, :conditions => ['firm_id = ?', 6])
 593     assert Account.public_methods.any? { |m| m.to_s == 'find_by_credit_limit' }
 594   end
 595
 596   def test_dynamic_finder_on_one_attribute_with_conditions_returns_same_results_after_caching
 597     # ensure this test can run independently of order
 598     class << Account; self; end.send(:remove_method, :find_by_credit_limit) if Account.public_methods.any? { |m| m.to_s == 'find_by_credit_limit' }
 599     a = Account.find_by_credit_limit(50, :conditions => ['firm_id = ?', 6])
 600     assert_equal a, Account.find_by_credit_limit(50, :conditions => ['firm_id = ?', 6]) # find_by_credit_limit has been cached
 601   end
 602
 603   def test_find_by_one_attribute_with_several_options
 604     assert_equal accounts(:unknown), Account.find_by_credit_limit(50, :order => 'id DESC', :conditions => ['id != ?', 3])
 605   end
 606
 607   def test_find_by_one_missing_attribute
 608     assert_raises(NoMethodError) { Topic.find_by_undertitle("The First Topic!") }
 609   end
 610
 611   def test_find_by_invalid_method_syntax
 612     assert_raises(NoMethodError) { Topic.fail_to_find_by_title("The First Topic") }
 613     assert_raises(NoMethodError) { Topic.find_by_title?("The First Topic") }
 614     assert_raises(NoMethodError) { Topic.fail_to_find_or_create_by_title("Nonexistent Title") }
 615     assert_raises(NoMethodError) { Topic.find_or_create_by_title?("Nonexistent Title") }
 616   end
 617
 618   def test_find_by_two_attributes
 619     assert_equal topics(:first), Topic.find_by_title_and_author_name("The First Topic", "David")
 620     assert_nil Topic.find_by_title_and_author_name("The First Topic", "Mary")
 621   end
 622
 623   def test_find_last_by_one_attribute
 624     assert_equal Topic.last, Topic.find_last_by_title(Topic.last.title)
 625     assert_nil Topic.find_last_by_title("A title with no matches")
 626   end
 627
 628   def test_find_last_by_one_attribute_caches_dynamic_finder
 629     # ensure this test can run independently of order
 630     class << Topic; self; end.send(:remove_method, :find_last_by_title) if Topic.public_methods.any? { |m| m.to_s == 'find_last_by_title' }
 631     assert !Topic.public_methods.any? { |m| m.to_s == 'find_last_by_title' }
 632     t = Topic.find_last_by_title(Topic.last.title)
 633     assert Topic.public_methods.any? { |m| m.to_s == 'find_last_by_title' }
 634   end
 635
 636   def test_find_last_by_invalid_method_syntax
 637     assert_raises(NoMethodError) { Topic.fail_to_find_last_by_title("The First Topic") }
 638     assert_raises(NoMethodError) { Topic.find_last_by_title?("The First Topic") }
 639   end
 640
 641   def test_find_last_by_one_attribute_with_several_options
 642     assert_equal accounts(:signals37), Account.find_last_by_credit_limit(50, :order => 'id DESC', :conditions => ['id != ?', 3])
 643   end
 644
 645   def test_find_last_by_one_missing_attribute
 646     assert_raises(NoMethodError) { Topic.find_last_by_undertitle("The Last Topic!") }
 647   end
 648
 649   def test_find_last_by_two_attributes
 650     topic = Topic.last
 651     assert_equal topic, Topic.find_last_by_title_and_author_name(topic.title, topic.author_name)
 652     assert_nil Topic.find_last_by_title_and_author_name(topic.title, "Anonymous")
 653   end
 654
 655   def test_find_all_by_one_attribute
 656     topics = Topic.find_all_by_content("Have a nice day")
 657     assert_equal 2, topics.size
 658     assert topics.include?(topics(:first))
 659
 660     assert_equal [], Topic.find_all_by_title("The First Topic!!")
 661   end
 662
 663   def test_find_all_by_one_attribute_that_is_an_aggregate
 664     balance = customers(:david).balance
 665     assert_kind_of Money, balance
 666     found_customers = Customer.find_all_by_balance(balance)
 667     assert_equal 1, found_customers.size
 668     assert_equal customers(:david), found_customers.first
 669   end
 670
 671   def test_find_all_by_two_attributes_that_are_both_aggregates
 672     balance = customers(:david).balance
 673     address = customers(:david).address
 674     assert_kind_of Money, balance
 675     assert_kind_of Address, address
 676     found_customers = Customer.find_all_by_balance_and_address(balance, address)
 677     assert_equal 1, found_customers.size
 678     assert_equal customers(:david), found_customers.first
 679   end
 680
 681   def test_find_all_by_two_attributes_with_one_being_an_aggregate
 682     balance = customers(:david).balance
 683     assert_kind_of Money, balance
 684     found_customers = Customer.find_all_by_balance_and_name(balance, customers(:david).name)
 685     assert_equal 1, found_customers.size
 686     assert_equal customers(:david), found_customers.first
 687   end
 688
 689   def test_find_all_by_one_attribute_with_options
 690     topics = Topic.find_all_by_content("Have a nice day", :order => "id DESC")
 691     assert topics(:first), topics.last
 692
 693     topics = Topic.find_all_by_content("Have a nice day", :order => "id")
 694     assert topics(:first), topics.first
 695   end
 696
 697   def test_find_all_by_array_attribute
 698     assert_equal 2, Topic.find_all_by_title(["The First Topic", "The Second Topic of the day"]).size
 699   end
 700
 701   def test_find_all_by_boolean_attribute
 702     topics = Topic.find_all_by_approved(false)
 703     assert_equal 1, topics.size
 704     assert topics.include?(topics(:first))
 705
 706     topics = Topic.find_all_by_approved(true)
 707     assert_equal 3, topics.size
 708     assert topics.include?(topics(:second))
 709   end
 710
 711   def test_find_by_nil_attribute
 712     topic = Topic.find_by_last_read nil
 713     assert_not_nil topic
 714     assert_nil topic.last_read
 715   end
 716
 717   def test_find_all_by_nil_attribute
 718     topics = Topic.find_all_by_last_read nil
 719     assert_equal 3, topics.size
 720     assert topics.collect(&:last_read).all?(&:nil?)
 721   end
 722
 723   def test_find_by_nil_and_not_nil_attributes
 724     topic = Topic.find_by_last_read_and_author_name nil, "Mary"
 725     assert_equal "Mary", topic.author_name
 726   end
 727
 728   def test_find_all_by_nil_and_not_nil_attributes
 729     topics = Topic.find_all_by_last_read_and_author_name nil, "Mary"
 730     assert_equal 1, topics.size
 731     assert_equal "Mary", topics[0].author_name
 732   end
 733
 734   def test_find_or_create_from_one_attribute
 735     number_of_companies = Company.count
 736     sig38 = Company.find_or_create_by_name("38signals")
 737     assert_equal number_of_companies + 1, Company.count
 738     assert_equal sig38, Company.find_or_create_by_name("38signals")
 739     assert !sig38.new_record?
 740   end
 741
 742   def test_find_or_create_from_two_attributes
 743     number_of_topics = Topic.count
 744     another = Topic.find_or_create_by_title_and_author_name("Another topic","John")
 745     assert_equal number_of_topics + 1, Topic.count
 746     assert_equal another, Topic.find_or_create_by_title_and_author_name("Another topic", "John")
 747     assert !another.new_record?
 748   end
 749
 750   def test_find_or_create_from_two_attributes_with_one_being_an_aggregate
 751     number_of_customers = Customer.count
 752     created_customer = Customer.find_or_create_by_balance_and_name(Money.new(123), "Elizabeth")
 753     assert_equal number_of_customers + 1, Customer.count
 754     assert_equal created_customer, Customer.find_or_create_by_balance(Money.new(123), "Elizabeth")
 755     assert !created_customer.new_record?
 756   end
 757
 758   def test_find_or_create_from_one_attribute_and_hash
 759     number_of_companies = Company.count
 760     sig38 = Company.find_or_create_by_name({:name => "38signals", :firm_id => 17, :client_of => 23})
 761     assert_equal number_of_companies + 1, Company.count
 762     assert_equal sig38, Company.find_or_create_by_name({:name => "38signals", :firm_id => 17, :client_of => 23})
 763     assert !sig38.new_record?
 764     assert_equal "38signals", sig38.name
 765     assert_equal 17, sig38.firm_id
 766     assert_equal 23, sig38.client_of
 767   end
 768
 769   def test_find_or_create_from_one_aggregate_attribute
 770     number_of_customers = Customer.count
 771     created_customer = Customer.find_or_create_by_balance(Money.new(123))
 772     assert_equal number_of_customers + 1, Customer.count
 773     assert_equal created_customer, Customer.find_or_create_by_balance(Money.new(123))
 774     assert !created_customer.new_record?
 775   end
 776
 777   def test_find_or_create_from_one_aggregate_attribute_and_hash
 778     number_of_customers = Customer.count
 779     balance = Money.new(123)
 780     name = "Elizabeth"
 781     created_customer = Customer.find_or_create_by_balance({:balance => balance, :name => name})
 782     assert_equal number_of_customers + 1, Customer.count
 783     assert_equal created_customer, Customer.find_or_create_by_balance({:balance => balance, :name => name})
 784     assert !created_customer.new_record?
 785     assert_equal balance, created_customer.balance
 786     assert_equal name, created_customer.name
 787   end
 788
 789   def test_find_or_initialize_from_one_attribute
 790     sig38 = Company.find_or_initialize_by_name("38signals")
 791     assert_equal "38signals", sig38.name
 792     assert sig38.new_record?
 793   end
 794
 795   def test_find_or_initialize_from_one_aggregate_attribute
 796     new_customer = Customer.find_or_initialize_by_balance(Money.new(123))
 797     assert_equal 123, new_customer.balance.amount
 798     assert new_customer.new_record?
 799   end
 800
 801   def test_find_or_initialize_from_one_attribute_should_not_set_attribute_even_when_protected
 802     c = Company.find_or_initialize_by_name({:name => "Fortune 1000", :rating => 1000})
 803     assert_equal "Fortune 1000", c.name
 804     assert_not_equal 1000, c.rating
 805     assert c.valid?
 806     assert c.new_record?
 807   end
 808
 809   def test_find_or_create_from_one_attribute_should_set_not_attribute_even_when_protected
 810     c = Company.find_or_create_by_name({:name => "Fortune 1000", :rating => 1000})
 811     assert_equal "Fortune 1000", c.name
 812     assert_not_equal 1000, c.rating
 813     assert c.valid?
 814     assert !c.new_record?
 815   end
 816
 817   def test_find_or_initialize_from_one_attribute_should_set_attribute_even_when_protected
 818     c = Company.find_or_initialize_by_name_and_rating("Fortune 1000", 1000)
 819     assert_equal "Fortune 1000", c.name
 820     assert_equal 1000, c.rating
 821     assert c.valid?
 822     assert c.new_record?
 823   end
 824
 825   def test_find_or_create_from_one_attribute_should_set_attribute_even_when_protected
 826     c = Company.find_or_create_by_name_and_rating("Fortune 1000", 1000)
 827     assert_equal "Fortune 1000", c.name
 828     assert_equal 1000, c.rating
 829     assert c.valid?
 830     assert !c.new_record?
 831   end
 832
 833   def test_find_or_initialize_should_set_protected_attributes_if_given_as_block
 834     c = Company.find_or_initialize_by_name(:name => "Fortune 1000") { |f| f.rating = 1000 }
 835     assert_equal "Fortune 1000", c.name
 836     assert_equal 1000.to_f, c.rating.to_f
 837     assert c.valid?
 838     assert c.new_record?
 839   end
 840
 841   def test_find_or_create_should_set_protected_attributes_if_given_as_block
 842     c = Company.find_or_create_by_name(:name => "Fortune 1000") { |f| f.rating = 1000 }
 843     assert_equal "Fortune 1000", c.name
 844     assert_equal 1000.to_f, c.rating.to_f
 845     assert c.valid?
 846     assert !c.new_record?
 847   end
 848
 849   def test_find_or_create_should_work_with_block_on_first_call
 850           class << Company
 851                 undef_method(:find_or_create_by_name) if method_defined?(:find_or_create_by_name)
 852           end
 853     c = Company.find_or_create_by_name(:name => "Fortune 1000") { |f| f.rating = 1000 }
 854     assert_equal "Fortune 1000", c.name
 855     assert_equal 1000.to_f, c.rating.to_f
 856     assert c.valid?
 857     assert !c.new_record?
 858   end
 859
 860   def test_dynamic_find_or_initialize_from_one_attribute_caches_method
 861     class << Company; self; end.send(:remove_method, :find_or_initialize_by_name) if Company.public_methods.any? { |m| m.to_s == 'find_or_initialize_by_name' }
 862     assert !Company.public_methods.any? { |m| m.to_s == 'find_or_initialize_by_name' }
 863     sig38 = Company.find_or_initialize_by_name("38signals")
 864     assert Company.public_methods.any? { |m| m.to_s == 'find_or_initialize_by_name' }
 865   end
 866
 867   def test_find_or_initialize_from_two_attributes
 868     another = Topic.find_or_initialize_by_title_and_author_name("Another topic","John")
 869     assert_equal "Another topic", another.title
 870     assert_equal "John", another.author_name
 871     assert another.new_record?
 872   end
 873
 874   def test_find_or_initialize_from_one_aggregate_attribute_and_one_not
 875     new_customer = Customer.find_or_initialize_by_balance_and_name(Money.new(123), "Elizabeth")
 876     assert_equal 123, new_customer.balance.amount
 877     assert_equal "Elizabeth", new_customer.name
 878     assert new_customer.new_record?
 879   end
 880
 881   def test_find_or_initialize_from_one_attribute_and_hash
 882     sig38 = Company.find_or_initialize_by_name({:name => "38signals", :firm_id => 17, :client_of => 23})
 883     assert_equal "38signals", sig38.name
 884     assert_equal 17, sig38.firm_id
 885     assert_equal 23, sig38.client_of
 886     assert sig38.new_record?
 887   end
 888
 889   def test_find_or_initialize_from_one_aggregate_attribute_and_hash
 890     balance = Money.new(123)
 891     name = "Elizabeth"
 892     new_customer = Customer.find_or_initialize_by_balance({:balance => balance, :name => name})
 893     assert_equal balance, new_customer.balance
 894     assert_equal name, new_customer.name
 895     assert new_customer.new_record?
 896   end
 897
 898   def test_find_with_bad_sql
 899     assert_raises(ActiveRecord::StatementInvalid) { Topic.find_by_sql "select 1 from badtable" }
 900   end
 901
 902   def test_find_with_invalid_params
 903     assert_raises(ArgumentError) { Topic.find :first, :join => "It should be `joins'" }
 904     assert_raises(ArgumentError) { Topic.find :first, :conditions => '1 = 1', :join => "It should be `joins'" }
 905   end
 906
 907   def test_dynamic_finder_with_invalid_params
 908     assert_raises(ArgumentError) { Topic.find_by_title 'No Title', :join => "It should be `joins'" }
 909   end
 910
 911   def test_find_all_with_limit
 912     first_five_developers = Developer.find :all, :order => 'id ASC', :limit =>  5
 913     assert_equal 5, first_five_developers.length
 914     assert_equal 'David', first_five_developers.first.name
 915     assert_equal 'fixture_5', first_five_developers.last.name
 916
 917     no_developers = Developer.find :all, :order => 'id ASC', :limit => 0
 918     assert_equal 0, no_developers.length
 919   end
 920
 921   def test_find_all_with_limit_and_offset
 922     first_three_developers = Developer.find :all, :order => 'id ASC', :limit => 3, :offset => 0
 923     second_three_developers = Developer.find :all, :order => 'id ASC', :limit => 3, :offset => 3
 924     last_two_developers = Developer.find :all, :order => 'id ASC', :limit => 2, :offset => 8
 925
 926     assert_equal 3, first_three_developers.length
 927     assert_equal 3, second_three_developers.length
 928     assert_equal 2, last_two_developers.length
 929
 930     assert_equal 'David', first_three_developers.first.name
 931     assert_equal 'fixture_4', second_three_developers.first.name
 932     assert_equal 'fixture_9', last_two_developers.first.name
 933   end
 934
 935   def test_find_all_with_limit_and_offset_and_multiple_order_clauses
 936     first_three_posts = Post.find :all, :order => 'author_id, id', :limit => 3, :offset => 0
 937     second_three_posts = Post.find :all, :order => ' author_id,id ', :limit => 3, :offset => 3
 938     last_posts = Post.find :all, :order => ' author_id, id  ', :limit => 3, :offset => 6
 939
 940     assert_equal [[0,3],[1,1],[1,2]], first_three_posts.map { |p| [p.author_id, p.id] }
 941     assert_equal [[1,4],[1,5],[1,6]], second_three_posts.map { |p| [p.author_id, p.id] }
 942     assert_equal [[2,7]], last_posts.map { |p| [p.author_id, p.id] }
 943   end
 944
 945   def test_find_all_with_join
 946     developers_on_project_one = Developer.find(
 947       :all,
 948       :joins => 'LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id',
 949       :conditions => 'project_id=1'
 950     )
 951     assert_equal 3, developers_on_project_one.length
 952     developer_names = developers_on_project_one.map { |d| d.name }
 953     assert developer_names.include?('David')
 954     assert developer_names.include?('Jamis')
 955   end
 956
 957   def test_joins_dont_clobber_id
 958     first = Firm.find(
 959       :first,
 960       :joins => 'INNER JOIN companies AS clients ON clients.firm_id = companies.id',
 961       :conditions => 'companies.id = 1'
 962     )
 963     assert_equal 1, first.id
 964   end
 965
 966   def test_joins_with_string_array
 967     person_with_reader_and_post = Post.find(
 968       :all,
 969       :joins => [
 970         "INNER JOIN categorizations ON categorizations.post_id = posts.id",
 971         "INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'"
 972       ]
 973     )
 974     assert_equal 1, person_with_reader_and_post.size
 975   end
 976
 977   def test_find_by_id_with_conditions_with_or
 978     assert_nothing_raised do
 979       Post.find([1,2,3],
 980         :conditions => "posts.id <= 3 OR posts.#{QUOTED_TYPE} = 'Post'")
 981     end
 982   end
 983
 984   # http://dev.rubyonrails.org/ticket/6778
 985   def test_find_ignores_previously_inserted_record
 986     post = Post.create!(:title => 'test', :body => 'it out')
 987     assert_equal [], Post.find_all_by_id(nil)
 988   end
 989
 990   def test_find_by_empty_ids
 991     assert_equal [], Post.find([])
 992   end
 993
 994   def test_find_by_empty_in_condition
 995     assert_equal [], Post.find(:all, :conditions => ['id in (?)', []])
 996   end
 997
 998   def test_find_by_records
 999     p1, p2 = Post.find(:all, :limit => 2, :order => 'id asc')
1000     assert_equal [p1, p2], Post.find(:all, :conditions => ['id in (?)', [p1, p2]], :order => 'id asc')
1001     assert_equal [p1, p2], Post.find(:all, :conditions => ['id in (?)', [p1, p2.id]], :order => 'id asc')
1002   end
1003
1004   def test_select_value
1005     assert_equal "37signals", Company.connection.select_value("SELECT name FROM companies WHERE id = 1")
1006     assert_nil Company.connection.select_value("SELECT name FROM companies WHERE id = -1")
1007     # make sure we didn't break count...
1008     assert_equal 0, Company.count_by_sql("SELECT COUNT(*) FROM companies WHERE name = 'Halliburton'")
1009     assert_equal 1, Company.count_by_sql("SELECT COUNT(*) FROM companies WHERE name = '37signals'")
1010   end
1011
1012   def test_select_values
1013     assert_equal ["1","2","3","4","5","6","7","8","9"], Company.connection.select_values("SELECT id FROM companies ORDER BY id").map! { |i| i.to_s }
1014     assert_equal ["37signals","Summit","Microsoft", "Flamboyant Software", "Ex Nihilo", "RailsCore", "Leetsoft", "Jadedpixel", "Odegy"], Company.connection.select_values("SELECT name FROM companies ORDER BY id")
1015   end
1016
1017   def test_select_rows
1018     assert_equal(
1019       [["1", nil, nil, "37signals"],
1020        ["2", "1", "2", "Summit"],
1021        ["3", "1", "1", "Microsoft"]],
1022       Company.connection.select_rows("SELECT id, firm_id, client_of, name FROM companies WHERE id IN (1,2,3) ORDER BY id").map! {|i| i.map! {|j| j.to_s unless j.nil?}})
1023     assert_equal [["1", "37signals"], ["2", "Summit"], ["3", "Microsoft"]],
1024       Company.connection.select_rows("SELECT id, name FROM companies WHERE id IN (1,2,3) ORDER BY id").map! {|i| i.map! {|j| j.to_s unless j.nil?}}
1025   end
1026
1027   def test_find_with_order_on_included_associations_with_construct_finder_sql_for_association_limiting_and_is_distinct
1028     assert_equal 2, Post.find(:all, :include => { :authors => :author_address }, :order => ' author_addresses.id DESC ', :limit => 2).size
1029
1030     assert_equal 3, Post.find(:all, :include => { :author => :author_address, :authors => :author_address},
1031                               :order => ' author_addresses_authors.id DESC ', :limit => 3).size
1032   end
1033
1034   def test_with_limiting_with_custom_select
1035     posts = Post.find(:all, :include => :author, :select => ' posts.*, authors.id as "author_id"', :limit => 3, :order => 'posts.id')
1036     assert_equal 3, posts.size
1037     assert_equal [0, 1, 1], posts.map(&:author_id).sort
1038   end
1039
1040   protected
1041     def bind(statement, *vars)
1042       if vars.first.is_a?(Hash)
1043         ActiveRecord::Base.send(:replace_named_bind_variables, statement, vars.first)
1044       else
1045         ActiveRecord::Base.send(:replace_bind_variables, statement, vars)
1046       end
1047     end
1048 end