From e1b500ec96987de595da1541a73a7d5fb9eece9c Mon Sep 17 00:00:00 2001 From: Aaron Patterson Date: Wed, 7 Sep 2011 15:26:26 -0700 Subject: LRU cache in mysql and sqlite are now per-process caches. --- .../cases/adapters/mysql/statement_pool_test.rb | 23 +++++++++++++++++++++ .../cases/adapters/sqlite3/statement_pool_test.rb | 24 ++++++++++++++++++++++ 2 files changed, 47 insertions(+) create mode 100644 activerecord/test/cases/adapters/mysql/statement_pool_test.rb create mode 100644 activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb (limited to 'activerecord/test') diff --git a/activerecord/test/cases/adapters/mysql/statement_pool_test.rb b/activerecord/test/cases/adapters/mysql/statement_pool_test.rb new file mode 100644 index 0000000000..83de90f179 --- /dev/null +++ b/activerecord/test/cases/adapters/mysql/statement_pool_test.rb @@ -0,0 +1,23 @@ +require 'cases/helper' + +module ActiveRecord::ConnectionAdapters + class MysqlAdapter + class StatementPoolTest < ActiveRecord::TestCase + def test_cache_is_per_pid + return skip('must support fork') unless Process.respond_to?(:fork) + + cache = StatementPool.new nil, 10 + cache['foo'] = 'bar' + assert_equal 'bar', cache['foo'] + + pid = fork { + lookup = cache['foo']; + exit!(!lookup) + } + + Process.waitpid pid + assert $?.success?, 'process should exit successfully' + end + end + end +end diff --git a/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb b/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb new file mode 100644 index 0000000000..ae272e2c4b --- /dev/null +++ b/activerecord/test/cases/adapters/sqlite3/statement_pool_test.rb @@ -0,0 +1,24 @@ +require 'cases/helper' + +module ActiveRecord::ConnectionAdapters + class SQLiteAdapter + class StatementPoolTest < ActiveRecord::TestCase + def test_cache_is_per_pid + return skip('must support fork') unless Process.respond_to?(:fork) + + cache = StatementPool.new nil, 10 + cache['foo'] = 'bar' + assert_equal 'bar', cache['foo'] + + pid = fork { + lookup = cache['foo']; + exit!(!lookup) + } + + Process.waitpid pid + assert $?.success?, 'process should exit successfully' + end + end + end +end + -- cgit v1.2.3