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require "cases/helper"
class MysqlConnectionTest < ActiveRecord::TestCase
def setup
super
@subscriber = SQLSubscriber.new
ActiveSupport::Notifications.subscribe('sql.active_record', @subscriber)
@connection = ActiveRecord::Base.connection
end
def teardown
ActiveSupport::Notifications.unsubscribe(@subscriber)
super
end
def test_no_automatic_reconnection_after_timeout
assert @connection.active?
@connection.update('set @@wait_timeout=1')
sleep 2
assert !@connection.active?
end
def test_successful_reconnection_after_timeout_with_manual_reconnect
assert @connection.active?
@connection.update('set @@wait_timeout=1')
sleep 2
@connection.reconnect!
assert @connection.active?
end
def test_successful_reconnection_after_timeout_with_verify
assert @connection.active?
@connection.update('set @@wait_timeout=1')
sleep 2
@connection.verify!
assert @connection.active?
end
# TODO: Below is a straight up copy/paste from mysql/connection_test.rb
# I'm not sure what the correct way is to share these tests between
# adapters in minitest.
def test_mysql_default_in_strict_mode
result = @connection.exec_query "SELECT @@SESSION.sql_mode"
assert_equal [["STRICT_ALL_TABLES"]], result.rows
end
def test_mysql_strict_mode_disabled_dont_override_global_sql_mode
run_without_connection do |orig_connection|
ActiveRecord::Base.establish_connection(orig_connection.merge({:strict => false}))
global_sql_mode = ActiveRecord::Base.connection.exec_query "SELECT @@GLOBAL.sql_mode"
session_sql_mode = ActiveRecord::Base.connection.exec_query "SELECT @@SESSION.sql_mode"
assert_equal global_sql_mode.rows, session_sql_mode.rows
end
end
def test_mysql_set_session_variable
run_without_connection do |orig_connection|
ActiveRecord::Base.establish_connection(orig_connection.deep_merge({:variables => {:default_week_format => 3}}))
session_mode = ActiveRecord::Base.connection.exec_query "SELECT @@SESSION.DEFAULT_WEEK_FORMAT"
assert_equal 3, session_mode.rows.first.first.to_i
end
end
def test_mysql_set_session_variable_to_default
run_without_connection do |orig_connection|
ActiveRecord::Base.establish_connection(orig_connection.deep_merge({:variables => {:default_week_format => :default}}))
global_mode = ActiveRecord::Base.connection.exec_query "SELECT @@GLOBAL.DEFAULT_WEEK_FORMAT"
session_mode = ActiveRecord::Base.connection.exec_query "SELECT @@SESSION.DEFAULT_WEEK_FORMAT"
assert_equal global_mode.rows, session_mode.rows
end
end
def test_logs_name_show_variable
@connection.show_variable 'foo'
assert_equal "SCHEMA", @subscriber.logged[0][1]
end
def test_logs_name_rename_column_sql
@connection.execute "CREATE TABLE `bar_baz` (`foo` varchar(255))"
@subscriber.logged.clear
@connection.send(:rename_column_sql, 'bar_baz', 'foo', 'foo2')
assert_equal "SCHEMA", @subscriber.logged[0][1]
ensure
@connection.execute "DROP TABLE `bar_baz`"
end
private
def run_without_connection
original_connection = ActiveRecord::Base.remove_connection
begin
yield original_connection
ensure
ActiveRecord::Base.establish_connection(original_connection)
end
end
end
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