I have no idea why it CI Testing PHP 7.4 with SQLite failing. I tested in my dev machine and test passed.

What should I do to make it through?

I have no idea why it CI Testing PHP 7.4 with SQLite failing.

You're asserting that the database will return a real boolean. However, many databases don't know what a boolean is and even if they do, the corresponding drivers don't cast to boolean. You'll get 0 or 1 instead, either as integer or string.

@ribeiropaulor did you try removing

assert($valueFromDatabase === null || is_bool($valueFromDatabase));

?

The correct assertion is done by

self::assertSame(
            $input,
            $this->connection->convertToPHPValue($valueFromDatabase, 'boolean'),
            'Must return from database the same value inserted.',
        );

Closing in favor of #7059. Thank you for bringing this issue to our attention!