@Test
public void getProfileOfGroupMemberTest() throws Exception {

    final UserProfileResponse mockUserProfileResponse = UserProfileResponse
            .builder()
            .displayName("name")
            .userId("userId")
            .pictureUrl(URI.create("https://line.me/picture_url"))
            .statusMessage("Status message")
            .language("en")
            .build();
    whenCall(retrofitMock.getMemberProfile(any(), any(), any()),
             mockUserProfileResponse);
    // Do
    final UserProfileResponse response = target.getGroupMemberProfile("GROUP_ID", "USER_ID").get();
    // Verify
    verify(retrofitMock, only()).getMemberProfile("group", "GROUP_ID", "USER_ID");
    assertThat(response).isEqualTo(mockUserProfileResponse);
}