@Test public void batchSizeOfOneAlwaysPerformsOperation() {

    batcher = new TestBatcher(1);
    assertEquals(0, operationCount);
    assertEquals(1, resetCount);
    batcher.operate();
    assertEquals(1, operationCount);
    assertEquals(2, resetCount);
    
    batcher.operate();
    assertEquals(2, operationCount);
    assertEquals(3, resetCount);
}