Update helper.php
Update helper.php
Add param to TestMockDatabaseDriver to create a mock child of JDatabaseDriver, use the mocker for JDatabaseExporterMysqlTest
Improve the test structure of JDatabaseExporterMysqlTest
Merge branch 'staging' of github.com:joomla/joomla-cms into staging
Update to PHPCS 1.5.5, fix DB schema paths
Fix codestyle
Improvements to some JDatabase tests and the mocker
Removed empty and unreachable tests (Fix #4697)
Merge pull request #4690 from joomdonation/staging

Fix issue #4679: Sorting Joomla! available languages
Tweaks to JAdministratorHelperTest
Improving structure of FinderIndexer test suite
Make getMockDatabase signature match TestMockDatabaseDriver::create
Prefer the getMockDatabase API endpoint
Reverting #4284 as it doubles some tabs (see  #4705)
Merge remote-tracking branch 'origin/staging' into currentSystemTest