new DefaultChecksumAlgorithmFactorySelector(getChecksumAlgorithmFactories()));

    @Test
    void smokeTest() {
        Collection<String> algNames = service.getChecksumAlgorithmNames();
        assertEquals(4, algNames.size());
    }

    @Test
    void emptySha1Calculator() {
        ChecksumAlgorithmService.ChecksumCalculator calculator =