Do your unit tests even get to assertFoo?

Lots of my unit tests involve looking up data in a database. My tests often look something like this:

public void crazyDatabaseTest()  {
    if (...) {
         if (...) {

         }
         else {
              for (SomeThing doodad: things) {
                   assertFuz(...)
              }
         }
    }
}

Now what happens if things is empty, or if by some chance my conditional logic breaks down and no asserts even get executed? To catch myself from this blunder, I often set a testAnything boolean like so:

public void crazyDatabaseTest()  {
    boolean testedAnything = false;
    if (...) {
         if (...) {

         }
         else {
              for (SomeThing doodad: things) {
                   testedAnything = true;
                   assertFuz(...)
              }
         }
    }

    if (!testedAnything) {
        fail("Nothing got tested!");
    }
}