mercykip

//Given an array arr[] of N elements, the task is to write a function to search a given element x in arr[].
public class LinearSearch {
    public static int search(int arr[], int x) {
        int n= arr.length;
       for(int i=0; i<n; i++){

            if (arr[i] == x) return i;
            
        }
        return -1;

mercykip

@ExtendWith(MockitoExtension.class)
class UserDataServiceImplTest {

    @Mock
    private UsersRepository userRepository;
    @InjectMocks
    private UserDataServiceImpl userService;

    @BeforeEach
    void setUp() {

mercykip

@AllArgsConstructor
@Service
public class UserDataServiceImpl implements UserDataService {

    private final UsersRepository usersRepository;

    @Override
    public Page getUsers(Specification specification, PageRequest pageRequest) {
        return usersRepository.findAll(specification,pageRequest);
    }

mercykip

public class UserPredicate implements Specification<Users> {
    private SearchCriteria criteria;

    public UserPredicate(SearchCriteria criteria) {
        this.criteria = criteria;
    }

    @Override
    public Predicate toPredicate(Root<Users> root, CriteriaQuery<?> cq, CriteriaBuilder builder) {
        if (criteria.getOperation().equalsIgnoreCase(">")) {

mercykip

@Repository
public interface UsersRepository extends JpaRepository<Users, Integer>, JpaSpecificationExecutor<Users> {
    Boolean selectExistsEmail(String email);

}

mercykip

@Test
void deleteUsers() {
    Integer id = 1;
    given(userRepository.existsById(id)).willReturn(true);

    userService.deleteUser(id);

    verify(userRepository).deleteById(1);
}
@Test

mercykip

    public void deleteUser(Integer id) {
        if(!usersRepository.existsById(id)) {
            throw new UserNotFoundException(
                    "User with id " + id + " does not exists");
        }
        usersRepository.deleteById(id);
    }

mercykip

    @Test
    void addUsers() {
        //create a user in  h2
        Users users = new Users(1, "mercy", "[email protected]");
        userService.addUsers(users);

        // captures the actual value of the student passed to the save method
        ArgumentCaptor<Users> studentArgumentCaptor = ArgumentCaptor.forClass(Users.class);
        verify(userRepository).save(studentArgumentCaptor.capture());

mercykip

    @Override
    public Users addUsers(Users user) {
        Boolean existsEmail = usersRepository.selectExistsEmail(user.getEmail());

        if (existsEmail) {
            throw new BadRequestException(
                    "Email " + user.getEmail() + " taken");
        }

        return usersRepository.save(user);

mercykip

@ExtendWith(MockitoExtension.class)
class UserServiceImplTest {

    @Mock
    private UsersRepository userRepository;
    private UserServiceImpl userService;

    @BeforeEach
    void setUp() {
        //initialize mock