@Test
public void testWIF() {

    final String privateKey = "9117f4bf9be717c9a90994326897f4243503accd06712162267e77f18b49c3a3";
    byte[] privateKeyFromWIF = WIF.getPrivateKeyFromWIF("L25kgAQJXNHnhc7Sx9bomxxwVSMsZdkaNQ3m2VfHrnLzKWMLP13A");
    assertThat(Numeric.toHexStringNoPrefix(privateKeyFromWIF), is(privateKey));
}