@Test
public void verifyValidSignature() {

    String configJson = FileUtils.readFileContent(getClass().getClassLoader().getResourceAsStream("config.json"));
    byte[] configSignature = FileUtils.readFileContentBytes(getClass().getClassLoader().getResourceAsStream("config.rsa"));
    String configSignaturePublicKey = FileUtils.readFileContent(getClass().getClassLoader().getResourceAsStream("config.pub"));
    assertTrue(SignatureVerifier.verify(configSignature, configSignaturePublicKey, configJson));
}