@Test
  public void testFillPatternAdvancedForTinyAllocations() throws Exception {
    doFillPatternAdvancedTest(() -> {
      int allocation = random.nextInt(MAX_WORKER_ALLOCATION_SIZE + 1);

      while (allocation < MIN_WORKER_ALLOCATION_SIZE) {
        allocation = random.nextInt(MAX_WORKER_ALLOCATION_SIZE + 1);
      }
      return allocation;
    });
  }
This test hammers a MemoryAllocatorImpl with multiple threads exercising the fill validation of
tiny Chunks for one minute. This, of course, exercises many aspects of the MemoryAllocatorImpl
and its helper classes.
geode-core/src/integrationTest/java/org/apache/geode/internal/offheap/MemoryAllocatorFillPatternIntegrationTest.java