if (events.isEmpty()) {
            return noData();
        } else {
            return new GarbageCollectionStats(
                    calculateRate(events),
                    calculateAverageUsage(events),
                    findMaxSize(events),
                    events.size()
            );
        }
    }

        calculator.update(ByteBuffer.allocate(0));
        assertEquals(calculator.checksum(), "da39a3ee5e6b4b0d3255bfef95601890afd80709");
    }

    @Test
    void calculateByte() throws IOException {
        Map<ChecksumAlgorithmService.ChecksumAlgorithm, String> checksums = service.calculate(
                "test".getBytes(StandardCharsets.UTF_8), service.select(Arrays.asList("SHA-1", "MD5")));