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require_relative "spec_helper"
describe "connection_checkout_event_callback extension" do
it "should error if using an unsupported connection pool" do
db = Sequel.mock(:pool_class => :single)
proc{db.extension(:connection_checkout_event_callback)}.must_raise Sequel::Error
end
end
[true, false].each do |sharded|
describe "connection_checkout_event_callback extension with #{"sharded_" if sharded}timed_queue connection pool" do
if sharded
def wrap(x)
[x, :default]
end
else
def wrap(x)
x
end
end
it "should issue expected events" do
opts = {max_connections: 1}
opts[:servers] = {:a=>{}} if sharded
db = Sequel.mock(opts)
db.extension(:connection_checkout_event_callback)
# Test that default callback does not break anything
db.synchronize{}
db.disconnect
events = []
if sharded
db.pool.on_checkout_event = proc{|*event| events << event}
else
db.pool.on_checkout_event = proc{|event| events << event}
end
db.synchronize{}
events.must_equal [wrap(:not_immediately_available), wrap(:new_connection)]
events.clear
q = Queue.new
q2 = Queue.new
db_thread = proc do
db.synchronize do
q2.push(true)
_(q.pop(timeout: 1)).must_equal true
end
true
end
t = Thread.new(&db_thread)
q2.pop(timeout: 1).must_equal true
events.must_equal [wrap(:immediately_available)]
events.clear
t2 = Thread.new(&db_thread)
sleep 0.001 until db.pool.num_waiting > 0
q.push(true)
q2.pop(timeout: 1).must_equal true
q.push(true)
events[0].must_equal wrap(:not_immediately_available)
if sharded
events[1][0].must_be :<, 1
events[1][1].must_equal :default
else
events[1].must_be :<, 1
end
t.join(1).value.must_equal true
t2.join(1).value.must_equal true
end
end
end if RUBY_VERSION >= "3.2"
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