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rails--rails/activerecord/test/threaded_connections_test.rb
Jeremy Kemper 15aa6e0552 r4644@asus: jeremy | 2006-06-16 14:57:03 -0700
locking
 r4645@asus:  jeremy | 2006-06-17 12:41:30 -0700
 missing reply fixture
 r4646@asus:  jeremy | 2006-06-19 13:05:23 -0700
 Use a per-thread (rather than global) transaction mutex so you may execute concurrent transactions on separate connections.
 r4647@asus:  jeremy | 2006-06-19 13:07:23 -0700
 PostgreSQL: introduce allow_concurrency option which determines whether to use blocking or asynchronous #execute. Adapters with blocking #execute will deadlock Ruby threads. The default value is ActiveRecord::Base.allow_concurrency.
 r4648@asus:  jeremy | 2006-06-19 13:08:40 -0700
 Pass the default allow_concurrency when instantiating new connections.
 r4649@asus:  jeremy | 2006-06-19 13:11:12 -0700
 Break out concurrent transaction tests and run them for PostgreSQLAdapter only (need to fork or system('some_test_script') for the other adapters)
 r4650@asus:  jeremy | 2006-06-19 13:42:48 -0700
 Row locking. Provide a locking clause with the :lock finder option or true for the default "FOR UPDATE".
 r4661@asus:  jeremy | 2006-06-19 15:36:51 -0700
 excise the junk mutex


git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4460 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
2006-06-19 22:48:51 +00:00

48 lines
1.3 KiB
Ruby

require 'abstract_unit'
require 'fixtures/topic'
require 'fixtures/reply'
unless %w(FrontBase).include? ActiveRecord::Base.connection.adapter_name
class ThreadedConnectionsTest < Test::Unit::TestCase
self.use_transactional_fixtures = false
fixtures :topics
def setup
@connection = ActiveRecord::Base.remove_connection
@connections = []
@allow_concurrency = ActiveRecord::Base.allow_concurrency
end
def teardown
# clear the connection cache
ActiveRecord::Base.send(:clear_all_cached_connections!)
# set allow_concurrency to saved value
ActiveRecord::Base.allow_concurrency = @allow_concurrency
# reestablish old connection
ActiveRecord::Base.establish_connection(@connection)
end
def gather_connections(use_threaded_connections)
ActiveRecord::Base.allow_concurrency = use_threaded_connections
ActiveRecord::Base.establish_connection(@connection)
5.times do
Thread.new do
Topic.find :first
@connections << ActiveRecord::Base.active_connections.values.first
end.join
end
end
def test_threaded_connections
gather_connections(true)
assert_equal @connections.uniq.length, 5
end
def test_unthreaded_connections
gather_connections(false)
assert_equal @connections.uniq.length, 1
end
end
end