@Test
public void haveFilesBeenChangedTestFilesAltered() throws Exception {

    KeyRefresher keyRefresher = new KeyRefresher("", "", mockedTrustStore, mockedKeyManagerProxy, mockedTrustManagerProxy);
    assertTrue(keyRefresher.haveFilesBeenChanged(classLoader.getResource("testFile").getPath(), new byte[md.getDigestLength()]));
}