Data providers are executed at the beginning of the execution
of the phpunit run, not when the test is run.

So, setting anything on them being dependent of current time
has high chances or fail when the test is executed (maybe some
hours later in slow databases / systems).

Data provider only can contain the relative values and then,
when the test is effectively run, they are applied to *current* time.

Some columns in the database have already 29 characters, so we
cannot use a prefix of 3 characters because that puts orcle over
the 30 characters max.

laurentdavid authored Nov 24, 2021 and victor committed Nov 24, 2021

This commit includes a copy of the bigbluebuttonbn activity module from:
- branch: tags/v2.5-alpha.2^0
- commit:

Eloy Lafuente authored Nov 22, 2021 and jun committed Nov 23, 2021

Added one extra TEXT column so we have it covered too.

PHPUnit test dataProvider methods should not modify global state,
such as initializing $OUTPUT, as they can cause failures in
unrelated tests at a distance.

This allows a report creator to create personalised reports
according to the user who is viewing the report.

This change overcomes limitations in certain DB engines (such as
MySQL[1]) which can lead to truncation of data when applying group
concatenation to columns.

Ensure we account for that by validating that we are able to extract
the expected number of fields from each concatenated value.

[1] https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_group_concat_max_len