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Viewing changes to vendor/rails/activerecord/test/cases/associations/habtm_join_table_test.rb

  • Committer: Richard Lee (Canonical)
  • Date: 2010-10-15 15:17:58 UTC
  • mfrom: (190.1.3 use-case-mapper)
  • Revision ID: richard.lee@canonical.com-20101015151758-wcvmfxrexsongf9d
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vendor/rails/activerecord/test/cases/associations/habtm_join_table_test.rb
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require 'cases/helper'
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class MyReader < ActiveRecord::Base
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  has_and_belongs_to_many :my_books
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end
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class MyBook < ActiveRecord::Base
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  has_and_belongs_to_many :my_readers
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end
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class HabtmJoinTableTest < ActiveRecord::TestCase
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  def setup
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    ActiveRecord::Base.connection.create_table :my_books, :force => true do |t|
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      t.string :name
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    end
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    assert ActiveRecord::Base.connection.table_exists?(:my_books)
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    ActiveRecord::Base.connection.create_table :my_readers, :force => true do |t|
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      t.string :name
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    end
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    assert ActiveRecord::Base.connection.table_exists?(:my_readers)
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    ActiveRecord::Base.connection.create_table :my_books_my_readers, :force => true do |t|
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      t.integer :my_book_id
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      t.integer :my_reader_id
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    end
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    assert ActiveRecord::Base.connection.table_exists?(:my_books_my_readers)
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  end
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  def teardown
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    ActiveRecord::Base.connection.drop_table :my_books
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    ActiveRecord::Base.connection.drop_table :my_readers
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    ActiveRecord::Base.connection.drop_table :my_books_my_readers
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  end
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  uses_transaction :test_should_raise_exception_when_join_table_has_a_primary_key
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  def test_should_raise_exception_when_join_table_has_a_primary_key
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    if ActiveRecord::Base.connection.supports_primary_key?
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      assert_raise ActiveRecord::ConfigurationError do
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        jaime = MyReader.create(:name=>"Jaime")
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        jaime.my_books << MyBook.create(:name=>'Great Expectations')
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      end
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    end
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  end
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  uses_transaction :test_should_cache_result_of_primary_key_check
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  def test_should_cache_result_of_primary_key_check
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    if ActiveRecord::Base.connection.supports_primary_key?
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      ActiveRecord::Base.connection.stubs(:primary_key).with('my_books_my_readers').returns(false).once
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      weaz = MyReader.create(:name=>'Weaz')
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      weaz.my_books << MyBook.create(:name=>'Great Expectations')
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      weaz.my_books << MyBook.create(:name=>'Greater Expectations')
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    end
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  end
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end