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require "cases/helper"
class PooledConnectionsTest < ActiveRecord::TestCase
def setup
super
@connection = ActiveRecord::Base.remove_connection
end
def teardown
ActiveRecord::Base.clear_all_connections!
ActiveRecord::Base.establish_connection(@connection)
super
end
def checkout_connections
ActiveRecord::Base.establish_connection(@connection.merge({:pool => 2, :wait_timeout => 0.3}))
@connections = []
@timed_out = 0
4.times do
Thread.new do
begin
@connections << ActiveRecord::Base.connection_pool.checkout
rescue ActiveRecord::ConnectionTimeoutError
@timed_out += 1
end
end.join
end
end
def test_pooled_connection_checkout
checkout_connections
assert_equal @connections.length, 2
assert_equal @timed_out, 2
end
def checkout_checkin_connections(pool_size, threads)
ActiveRecord::Base.establish_connection(@connection.merge({:pool => pool_size, :wait_timeout => 0.5}))
@connection_count = 0
@timed_out = 0
threads.times do
Thread.new do
begin
conn = ActiveRecord::Base.connection_pool.checkout
sleep 0.1
ActiveRecord::Base.connection_pool.checkin conn
@connection_count += 1
rescue ActiveRecord::ConnectionTimeoutError
@timed_out += 1
end
end.join
end
end
def test_pooled_connection_checkin_one
checkout_checkin_connections 1, 2
assert_equal 2, @connection_count
assert_equal 0, @timed_out
end
def test_pooled_connection_checkin_two
checkout_checkin_connections 2, 3
assert_equal 3, @connection_count
assert_equal 0, @timed_out
end
def test_pooled_connection_checkout_existing_first
ActiveRecord::Base.establish_connection(@connection.merge({:pool => 1}))
conn_pool = ActiveRecord::Base.connection_pool
conn = conn_pool.checkout
conn_pool.checkin(conn)
conn = conn_pool.checkout
assert ActiveRecord::ConnectionAdapters::AbstractAdapter === conn
conn_pool.checkin(conn)
end
end unless %w(FrontBase).include? ActiveRecord::Base.connection.adapter_name
class AllowConcurrencyDeprecatedTest < ActiveRecord::TestCase
def test_allow_concurrency_is_deprecated
assert_deprecated('ActiveRecord::Base.allow_concurrency') do
ActiveRecord::Base.allow_concurrency
end
assert_deprecated('ActiveRecord::Base.allow_concurrency=') do
ActiveRecord::Base.allow_concurrency = true
end
end
end
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