Looks like an error occurs on mysqli (in travis at least):

Array
(
    [warnings] => Array
        (
        )

    [errors] => Array
        (
            [0] => Mysqli prepare error: Table 'piwik_tests.archive_blob_2015_01' doesn't exist
        )

    [coreError] => 1

    [deactivatedPlugins] => Array
        (
        )
)

This gets thrown as a runtime exception which I guess stops the test entirely.

This error is caused by the test on purpose. Not sure why it's a runtime exception in this case and why it works locally with MYSQLI 🤔

Haven't figured out the cause, but:

• replacing the runtime exception w/ \Exception has no effect
• and catching the exception in the Update command allows the test to continue

I've narrowed down the problem to something in the Application.php class in symfony console. The run() method has a try-catch, the catch is never entered, the process seems to just exit. However, in doRun() if I surround doRunCommand() and catch the exception, the tests continue. So I suspect the issue is Console::doRun()'s safemode logic.