@Test
public void issueLinkToken() throws Exception {

    whenCall(retrofitMock.issueLinkToken(any()), new IssueLinkTokenResponse("ID"));
    final IssueLinkTokenResponse response = target.issueLinkToken("ID").get();
    verify(retrofitMock, only()).issueLinkToken("ID");
    assertThat(response).isEqualTo(new IssueLinkTokenResponse("ID"));
}