@Test
public void findUser() throws Exception {

    PublicKey publicKey = new PublicKey();
    publicKey.setFingerPrint(new byte[]{6,-49,-18,45,-68,69,95,29,-100,-5,67,-81,-37,-120,-111,-45,-28,-36,3,51,-80,45,20,-45,18,106,110,-120,1,-20,100,-67});
    User nonUser = userStore.findUser(publicKey);
    assertNotNull(nonUser);
}