### Question:
DigestUtils { public static String md5(String src) { return md5(src, BASE64); } private  DigestUtils(); static String uuid(); static long crc32(byte[] bytes); static String toBase64(byte[] input); static byte[] fromBase64(String base64); static void importCert2Keystore(String keystorePath, String password, String host, int port); static String md5(String src); static String md5(String src, EncodeType encodeType); static String sha1(String src); static String sha1(String src, EncodeType encodeType); static String sha256(String src); static String sha256(String src, EncodeType encodeType);  }### Answer:
@Test public void testBase64() { assertEquals("5PWKgFpuH9D2vvWMhvnOsw==", DigestUtils.md5("I love you")); }