Add clean to MySQL tests

[kamil-tekiela]

I don't like when PHP tests don't clean up after themselves.

[staabm]

Since you are now using the same table/procedure names, do you need to make sure those tests don't run in parallel?

[kamil-tekiela]

@staabm Maybe, but I can't even test parallel execution due to the OPCache bug. Do you know what I need to change to make them work in parallel mode?

[Anonymous-231]

Trash

[cmb69]

I'm not sure to which OPcache bug you are referring, but if can't run in parallel with OPcache, consider to not enable it in the first place.

Anyhow, the table names need to be unique, or the conflicting tests have to be marked as such. The former is preferable.

[kamil-tekiela]

@cmb69 I was referring to the bug that got fixed this morning. Anyway, I tested with -j4 and all test cases run as expected. I don't know how the conflicts file works, but I assume that mysqli and PDO tests are conflicting with each other and they will never run in parallel. I analysed the tests I changed and I see no reason why these particular ones should have unique table names. All other ones use test table.

@staabm To answer your concern, I don't think I need to do anything special in regards to parallel processing. It works just as all the other ones do in mysqli and PDO.

[cmb69]

Ah, right, these tests don't run in parallel, because there is a CONFLICTS file.