* Update database tests to prepare for more
Add test_db_name, test_db_user, test_db_pass to allow developers to have a dedicated testing database.
Extract DBTestCase to include common functionality for database based tests. Use transactions to isolate tests.
Enable STRICT_TRANS_TABLE, test for it's existence (only when we have a user that can set it)
Move the database cleanup to register_shutdown_function, this makes it happen every time at the end of tests.
If the was not empty, only truncate the tables (that aren't prepopulated) instead of drop the database.
Use our schema functions for schema tests.
Fix some missing array indexes so it doesn't clutter test output.
* Fix style
* fix: Allow unit tests without a sql server
* Fix db connection in bootstrap.php
Mark tests as skipped
Make sure the sql queries in bootstrap.php have run
* Unit test to validate the db schema
Changes build-schema.php to just write misc/db_schema.yaml
* Only build base if needed
Fix 178.sql
* Database is always created by init.php
add dbSchema test too, should guard against testing against an empty database
* feature: support non-standard unix socket (#5724)
* Add support for custom MySQL unix-socket
* NULL must be lowercase!
* Naive edit of html/install.php
* fixup
* Refactor dbConnect
Use it everywhere
* $config needs to be global
Don't need to set $database_link
* small cleanups
* Connect to the database for every test.
* travis fix for blank line
* initial work to standardise collation
* more updates
* final bits for collation update (famous last words)
* Rename 165.sql to 166.sql
* Update schema version inside 166.sql
* moved schema file 166->171
