src/test/java/com/dalab/discovery/common/model/UserMapperTest.java

package com.dalab.discovery.common.model;

import static org.assertj.core.api.Assertions.*;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import com.dalab.discovery.client.dto.AdminUserDTO;
import com.dalab.discovery.client.dto.UserDTO;
import com.dalab.discovery.crawler.service.mapper.CrawlerUserMapper;

/**
 * Unit tests for {@link UserMapper}.
 */
class UserMapperTest {

    private static final String DEFAULT_LOGIN = "johndoe";
    private static final String DEFAULT_ID = "id1";

    private CrawlerUserMapper userMapper;
    private CrawlerUser user;
    private AdminUserDTO userDto;

    @BeforeEach
    public void init() {
        userMapper = new CrawlerUserMapper();
        user = new CrawlerUser();
        user.setLogin(DEFAULT_LOGIN);
        user.setActivated(true);
        user.setEmail("johndoe@localhost");
        user.setFirstName("john");
        user.setLastName("doe");
        user.setImageUrl("image_url");
        user.setLangKey("en");

        userDto = new AdminUserDTO(user);
    }

    @Test
    void usersToUserDTOsShouldMapOnlyNonNullUsers() {
        List<CrawlerUser> users = new ArrayList<>();
        users.add(user);
        users.add(null);

        List<UserDTO> userDTOS = userMapper.usersToUserDTOs(users);

        assertThat(userDTOS).isNotEmpty().size().isEqualTo(1);
    }

    @Test
    void userDTOsToUsersShouldMapOnlyNonNullUsers() {
        List<AdminUserDTO> usersDto = new ArrayList<>();
        usersDto.add(userDto);
        usersDto.add(null);

        List<CrawlerUser> users = userMapper.userDTOsToUsers(usersDto);

        assertThat(users).isNotEmpty().size().isEqualTo(1);
    }

    @Test
    void userDTOsToUsersWithAuthoritiesStringShouldMapToUsersWithAuthoritiesDomain() {
        Set<String> authoritiesAsString = new HashSet<>();
        authoritiesAsString.add("ADMIN");
        userDto.setAuthorities(authoritiesAsString);

        List<AdminUserDTO> usersDto = new ArrayList<>();
        usersDto.add(userDto);

        List<CrawlerUser> users = userMapper.userDTOsToUsers(usersDto);

        assertThat(users).isNotEmpty().size().isEqualTo(1);
        assertThat(users.get(0).getAuthorities()).isNotNull();
        assertThat(users.get(0).getAuthorities()).isNotEmpty();
        assertThat(users.get(0).getAuthorities().iterator().next().getName()).isEqualTo("ADMIN");
    }

    @Test
    void userDTOsToUsersMapWithNullAuthoritiesStringShouldReturnUserWithEmptyAuthorities() {
        userDto.setAuthorities(null);

        List<AdminUserDTO> usersDto = new ArrayList<>();
        usersDto.add(userDto);

        List<CrawlerUser> users = userMapper.userDTOsToUsers(usersDto);

        assertThat(users).isNotEmpty().size().isEqualTo(1);
        assertThat(users.get(0).getAuthorities()).isNotNull();
        assertThat(users.get(0).getAuthorities()).isEmpty();
    }

    @Test
    void userDTOToUserMapWithAuthoritiesStringShouldReturnUserWithAuthorities() {
        Set<String> authoritiesAsString = new HashSet<>();
        authoritiesAsString.add("ADMIN");
        userDto.setAuthorities(authoritiesAsString);

        CrawlerUser user = userMapper.userDTOToUser(userDto);

        assertThat(user).isNotNull();
        assertThat(user.getAuthorities()).isNotNull();
        assertThat(user.getAuthorities()).isNotEmpty();
        assertThat(user.getAuthorities().iterator().next().getName()).isEqualTo("ADMIN");
    }

    @Test
    void userDTOToUserMapWithNullAuthoritiesStringShouldReturnUserWithEmptyAuthorities() {
        userDto.setAuthorities(null);

        CrawlerUser user = userMapper.userDTOToUser(userDto);

        assertThat(user).isNotNull();
        assertThat(user.getAuthorities()).isNotNull();
        assertThat(user.getAuthorities()).isEmpty();
    }

    @Test
    void userDTOToUserMapWithNullUserShouldReturnNull() {
        assertThat(userMapper.userDTOToUser(null)).isNull();
    }

    @Test
    void testUserFromId() {
        assertThat(userMapper.userFromId(DEFAULT_ID).getId()).isEqualTo(DEFAULT_ID);
        assertThat(userMapper.userFromId(null)).isNull();
    }
}