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# frozen_string_literal: true
require "cases/helper"
require "models/post"
module ActiveRecord
class ConnectionHandlingTest < ActiveRecord::TestCase
fixtures :posts
setup do
@_permanent_connection_checkout_was = ActiveRecord.permanent_connection_checkout
end
teardown do
ActiveRecord.permanent_connection_checkout = @_permanent_connection_checkout_was
end
unless in_memory_db?
test "#with_connection lease the connection for the duration of the block" do
ActiveRecord::Base.release_connection
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
ActiveRecord::Base.with_connection do |connection|
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
end
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
end
test "#lease_connection makes the lease permanent even inside #with_connection" do
ActiveRecord::Base.release_connection
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
conn = nil
ActiveRecord::Base.with_connection do |connection|
conn = connection
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
2.times do
assert_same connection, ActiveRecord::Base.lease_connection
end
end
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
assert_same conn, ActiveRecord::Base.lease_connection
end
test "#lease_connection makes the lease permanent even inside #with_connection(prevent_permanent_checkout: true)" do
ActiveRecord::Base.release_connection
ActiveRecord::Base.with_connection(prevent_permanent_checkout: true) do |connection|
assert_same connection, ActiveRecord::Base.lease_connection
end
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
end
test "#with_connection use the already leased connection if available" do
leased_connection = ActiveRecord::Base.lease_connection
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
ActiveRecord::Base.with_connection do |connection|
assert_same leased_connection, connection
assert_same ActiveRecord::Base.lease_connection, connection
end
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
assert_same ActiveRecord::Base.lease_connection, leased_connection
end
test "#with_connection is reentrant" do
leased_connection = ActiveRecord::Base.lease_connection
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
ActiveRecord::Base.with_connection do |connection|
assert_same leased_connection, connection
assert_same ActiveRecord::Base.lease_connection, connection
ActiveRecord::Base.with_connection do |connection2|
assert_same leased_connection, connection2
assert_same ActiveRecord::Base.lease_connection, connection2
end
end
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
assert_same ActiveRecord::Base.lease_connection, leased_connection
end
test "#connection is a soft-deprecated alias to #lease_connection" do
ActiveRecord.permanent_connection_checkout = true
ActiveRecord::Base.release_connection
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
conn = nil
ActiveRecord::Base.with_connection do |connection|
conn = connection
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
2.times do
assert_same connection, ActiveRecord::Base.connection
end
end
assert_predicate ActiveRecord::Base.connection_pool, :active_connection?
assert_same conn, ActiveRecord::Base.connection
ActiveRecord::Base.release_connection
end
test "#connection emits a deprecation warning if ActiveRecord.permanent_connection_checkout == :deprecated" do
ActiveRecord.permanent_connection_checkout = :deprecated
ActiveRecord::Base.release_connection
assert_deprecated(ActiveRecord.deprecator) do
ActiveRecord::Base.connection
end
assert_not_deprecated(ActiveRecord.deprecator) do
ActiveRecord::Base.connection
end
ActiveRecord::Base.release_connection
assert_deprecated(ActiveRecord.deprecator) do
ActiveRecord::Base.connection
end
ActiveRecord::Base.release_connection
ActiveRecord::Base.with_connection do
assert_deprecated(ActiveRecord.deprecator) do
ActiveRecord::Base.connection
end
end
end
test "#connection raises an error if ActiveRecord.permanent_connection_checkout == :disallowed" do
ActiveRecord.permanent_connection_checkout = :disallowed
ActiveRecord::Base.release_connection
assert_raises(ActiveRecordError) do
ActiveRecord::Base.connection
end
ActiveRecord::Base.with_connection do
assert_raises(ActiveRecordError) do
ActiveRecord::Base.connection
end
end
ActiveRecord::Base.lease_connection
assert_nothing_raised do
ActiveRecord::Base.connection
end
end
test "#connection doesn't make the lease permanent if inside #with_connection(prevent_permanent_checkout: true)" do
ActiveRecord.permanent_connection_checkout = :disallowed
ActiveRecord::Base.release_connection
ActiveRecord::Base.with_connection(prevent_permanent_checkout: true) do |connection|
assert_same connection, ActiveRecord::Base.connection
end
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
end
test "common APIs don't permanently hold a connection when permanent checkout is deprecated or disallowed" do
ActiveRecord.permanent_connection_checkout = :deprecated
ActiveRecord::Base.release_connection
assert_not_predicate ActiveRecord::Base.connection_pool, :active_connection?
Post.create!(title: "foo", body: "bar")
assert_not_predicate Post.connection_pool, :active_connection?
Post.first
assert_not_predicate Post.connection_pool, :active_connection?
Post.count
assert_not_predicate Post.connection_pool, :active_connection?
end
end
end
end
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