fix tests without assertions

[denissonleal]

these two test cases doesn't have assertions and the phpunit shows errors because of that

[Smolevich]

Add description please

[denissonleal]

fails shown in phpunit:

.R.............................................................  63 / 186 ( 33%)
............................................................... 126 / 186 ( 67%)
......................................................R.....    186 / 186 (100%)

Time: 1.27 minutes, Memory: 64.00 MB

There were 2 risky tests:

1) AuthTest::testRemindOld
This test did not perform any assertions

/code/tests/AuthTest.php:28

2) SchemaTest::testDummies
This test did not perform any assertions

/code/tests/SchemaTest.php:297

OK, but incomplete, skipped, or risky tests!
Tests: 186, Assertions: 779, Risky: 2.

[jenssegers]

Thanks!