@Test
public void testRetrieveLastModificationTime() {

    ZMSFileChangeLogStoreCommon cstore = new ZMSFileChangeLogStoreCommon(FSTORE_PATH);
    try (PrintWriter out = new PrintWriter(FSTORE_PATH + "/.lastModTime")) {
        out.write("{\"lastModTime\":\"12345\"}");
    } catch (FileNotFoundException e) {
        fail();
    }
    assertEquals(cstore.retrieveLastModificationTime(), "12345");
}