File f1 = getFile("A", "A", "t1", 829, 54);
File f2 = getFile("A", "B", "t2", 29, 42);
File f3 = getFile("B", "C", "t3", 823, 30);
submitFile(additionDao, f1);
assertEquals(new LibraryStatistics(1, 1, 1, 829, 54), getStats());
submitFile(additionDao, f2);
assertEquals(new LibraryStatistics(1, 2, 2, 829+29, 54+42), getStats());
submitFile(additionDao, f3);
assertEquals(new LibraryStatistics(2, 3, 3, 829+29+823, 54+42+30), getStats());
}