LaboratoryTokenService.java

package com.edtech.service;

import com.edtech.model.User;
import com.edtech.model.UserRole;
import com.edtech.repository.UserRepository;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.List;
import java.util.Optional;
import java.util.UUID;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

/** Javadoc. */
@Service
public class LaboratoryTokenService {

  private final UserRepository userRepository;
  private final String serverSecret;

  public LaboratoryTokenService(
      UserRepository userRepository,
      @Value("${jwt.secret:default-secret-key-for-lab-token-12345}") String serverSecret) {
    this.userRepository = userRepository;
    this.serverSecret = serverSecret;
  }

  /** Javadoc. */
  public String generateToken(UUID advisorId) {
    long currentWeek = System.currentTimeMillis() / (7L * 24 * 60 * 60 * 1000);
    String rawData = advisorId.toString() + ":" + currentWeek + ":" + serverSecret;
    try {
      MessageDigest digest = MessageDigest.getInstance("SHA-256");
      byte[] hash = digest.digest(rawData.getBytes(StandardCharsets.UTF_8));

      // Extrai os 6 ultimos bytes para formar o TOTP
      int offset = hash[hash.length - 1] & 0xf;
      int binary =
          ((hash[offset] & 0x7f) << 24)
              | ((hash[offset + 1] & 0xff) << 16)
              | ((hash[offset + 2] & 0xff) << 8)
              | (hash[offset + 3] & 0xff);

      int otp = binary % 1000000;
      return String.format("%06d", otp);
    } catch (NoSuchAlgorithmException e) {
      throw new RuntimeException("SHA-256 not found", e);
    }
  }

  /** Javadoc. */
  public Optional<User> findAdvisorByToken(String token) {
    List<User> advisors = userRepository.findByRole(UserRole.ADVISOR);
    for (User advisor : advisors) {
      if (generateToken(advisor.getId()).equals(token)) {
        return Optional.of(advisor);
      }
    }
    return Optional.empty();
  }
}









Active mutators

CONDITIONALS_BOUNDARY
EMPTY_RETURNS
FALSE_RETURNS
INCREMENTS
INVERT_NEGS
MATH
NEGATE_CONDITIONALS
NULL_RETURNS
PRIMITIVE_RETURNS
TRUE_RETURNS
VOID_METHOD_CALLS

Tests examined

com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken()] (1 ms)
com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testFindAdvisorByToken_Found()] (0 ms)
com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] (2 ms)

Report generated by PIT 1.16.1

1		package com.edtech.service;
2
3		import com.edtech.model.User;
4		import com.edtech.model.UserRole;
5		import com.edtech.repository.UserRepository;
6		import java.nio.charset.StandardCharsets;
7		import java.security.MessageDigest;
8		import java.security.NoSuchAlgorithmException;
9		import java.util.List;
10		import java.util.Optional;
11		import java.util.UUID;
12		import org.springframework.beans.factory.annotation.Value;
13		import org.springframework.stereotype.Service;
14
15		/** Javadoc. */
16		@Service
17		public class LaboratoryTokenService {
18
19		private final UserRepository userRepository;
20		private final String serverSecret;
21
22		public LaboratoryTokenService(
23		UserRepository userRepository,
24		@Value("${jwt.secret:default-secret-key-for-lab-token-12345}") String serverSecret) {
25		this.userRepository = userRepository;
26		this.serverSecret = serverSecret;
27		}
28
29		/** Javadoc. */
30		public String generateToken(UUID advisorId) {
31	1 1. generateToken : Replaced long division with multiplication → KILLED	long currentWeek = System.currentTimeMillis() / (7L * 24 * 60 * 60 * 1000);
32		String rawData = advisorId.toString() + ":" + currentWeek + ":" + serverSecret;
33		try {
34		MessageDigest digest = MessageDigest.getInstance("SHA-256");
35		byte[] hash = digest.digest(rawData.getBytes(StandardCharsets.UTF_8));
36
37		// Extrai os 6 ultimos bytes para formar o TOTP
38	2 1. generateToken : Replaced bitwise AND with OR → KILLED 2. generateToken : Replaced integer subtraction with addition → KILLED	int offset = hash[hash.length - 1] & 0xf;
39	13 1. generateToken : Replaced integer addition with subtraction → KILLED 2. generateToken : Replaced Shift Left with Shift Right → KILLED 3. generateToken : Replaced bitwise OR with AND → KILLED 4. generateToken : Replaced bitwise AND with OR → KILLED 5. generateToken : Replaced integer addition with subtraction → KILLED 6. generateToken : Replaced Shift Left with Shift Right → KILLED 7. generateToken : Replaced bitwise AND with OR → KILLED 8. generateToken : Replaced bitwise AND with OR → KILLED 9. generateToken : Replaced bitwise OR with AND → KILLED 10. generateToken : Replaced integer addition with subtraction → KILLED 11. generateToken : Replaced Shift Left with Shift Right → KILLED 12. generateToken : Replaced bitwise OR with AND → KILLED 13. generateToken : Replaced bitwise AND with OR → KILLED	int binary =
40		((hash[offset] & 0x7f) << 24)
41		\| ((hash[offset + 1] & 0xff) << 16)
42		\| ((hash[offset + 2] & 0xff) << 8)
43		\| (hash[offset + 3] & 0xff);
44
45	1 1. generateToken : Replaced integer modulus with multiplication → KILLED	int otp = binary % 1000000;
46	1 1. generateToken : replaced return value with "" for com/edtech/service/LaboratoryTokenService::generateToken → KILLED	return String.format("%06d", otp);
47		} catch (NoSuchAlgorithmException e) {
48		throw new RuntimeException("SHA-256 not found", e);
49		}
50		}
51
52		/** Javadoc. */
53		public Optional<User> findAdvisorByToken(String token) {
54		List<User> advisors = userRepository.findByRole(UserRole.ADVISOR);
55		for (User advisor : advisors) {
56	1 1. findAdvisorByToken : negated conditional → KILLED	if (generateToken(advisor.getId()).equals(token)) {
57	1 1. findAdvisorByToken : replaced return value with Optional.empty for com/edtech/service/LaboratoryTokenService::findAdvisorByToken → KILLED	return Optional.of(advisor);
58		}
59		}
60		return Optional.empty();
61		}
62		}
		Mutations
31		1.1 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced long division with multiplication → KILLED
38		1.1 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testFindAdvisorByToken_Found()] Replaced bitwise AND with OR → KILLED 2.2 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken()] Replaced integer subtraction with addition → KILLED
39		1.1 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced integer addition with subtraction → KILLED 2.2 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced Shift Left with Shift Right → KILLED 3.3 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise OR with AND → KILLED 4.4 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise AND with OR → KILLED 5.5 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced integer addition with subtraction → KILLED 6.6 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced Shift Left with Shift Right → KILLED 7.7 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise AND with OR → KILLED 8.8 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise AND with OR → KILLED 9.9 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise OR with AND → KILLED 10.10 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced integer addition with subtraction → KILLED 11.11 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced Shift Left with Shift Right → KILLED 12.12 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise OR with AND → KILLED 13.13 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken_Deterministic()] Replaced bitwise AND with OR → KILLED
45		1.1 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken()] Replaced integer modulus with multiplication → KILLED
46		1.1 Location : generateToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testGenerateToken()] replaced return value with "" for com/edtech/service/LaboratoryTokenService::generateToken → KILLED
56		1.1 Location : findAdvisorByToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testFindAdvisorByToken_Found()] negated conditional → KILLED
57		1.1 Location : findAdvisorByToken Killed by : com.edtech.service.LaboratoryTokenServiceTest.[engine:junit-jupiter]/[class:com.edtech.service.LaboratoryTokenServiceTest]/[method:testFindAdvisorByToken_Found()] replaced return value with Optional.empty for com/edtech/service/LaboratoryTokenService::findAdvisorByToken → KILLED

LaboratoryTokenService.java

Mutations

Active mutators

Tests examined