AuditService.java

package com.rbctcsworld.ecommerce.audit;

import com.rbctcsworld.ecommerce.common.exception.BusinessRuleException;
import jakarta.persistence.EntityManager;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.event.TransactionPhase;
import org.springframework.transaction.event.TransactionalEventListener;

import java.time.Clock;
import java.time.LocalDateTime;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

/**
 * Writes and reads the audit trail (audit_log).
 *
 * Writing: services publish an AuditEvent inside their transaction. Just before that transaction commits,
 * this listener first flushes the pending entity changes (so every row lock the transaction needs is already
 * taken), then locks the chain head, appends one row per changed field and moves the head. The head is the
 * LAST lock any transaction takes, so audited transactions cannot deadlock on it. If writing fails, the
 * whole transaction rolls back: no change without its audit row.
 *
 * Reading (store admin): filter, verify the hash chain, export as CSV.
 */
@Service
public class AuditService {

    public static final int DEFAULT_LIMIT = 200;
    public static final int MAX_LIMIT = 1000;

    private static final RowMapper<AuditRecord> ROW = (rs, i) -> new AuditRecord(rs.getLong("seq"),
            rs.getTimestamp("occurred_at").toLocalDateTime(), rs.getString("actor"), rs.getString("entity_type"),
            rs.getLong("entity_id"), rs.getString("action"), rs.getString("field"), rs.getString("old_value"),
            rs.getString("new_value"), rs.getString("prev_hash"), rs.getString("hash"));
    private static final String COLUMNS =
            "seq, occurred_at, actor, entity_type, entity_id, action, field, old_value, new_value, prev_hash, hash";

    private final JdbcTemplate jdbc;
    private final EntityManager em;
    private final Clock clock;

    public AuditService(JdbcTemplate jdbc, EntityManager em, Clock clock) {
        this.jdbc = jdbc;
        this.em = em;
        this.clock = clock;
    }

    @TransactionalEventListener(phase = TransactionPhase.BEFORE_COMMIT)
    public void on(AuditEvent event) {
        if (event.changes().isEmpty()) return;
        em.flush();
        append(event.actor(), event.changes());
    }

    void append(String actor, List<AuditChange> changes) {
        long[] seq = new long[1];
        String[] prev = new String[1];
        jdbc.query("select last_seq, last_hash from audit_head where id = 1 for update", rs -> {
            seq[0] = rs.getLong(1);
            prev[0] = rs.getString(2);
        });
        if (prev[0] == null) throw new IllegalStateException("audit_head row is missing");
        LocalDateTime now = LocalDateTime.now(clock).truncatedTo(ChronoUnit.MILLIS);
        for (AuditChange c : changes) {
            seq[0]++;
            String hash = AuditChain.hash(prev[0], seq[0], now, actor, c.entityType(), c.entityId(), c.action(),
                    c.field(), c.oldValue(), c.newValue());
            jdbc.update("insert into audit_log (" + COLUMNS + ") values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
                    seq[0], now, actor, c.entityType(), c.entityId(), c.action(), c.field(), c.oldValue(),
                    c.newValue(), prev[0], hash);
            prev[0] = hash;
        }
        jdbc.update("update audit_head set last_seq = ?, last_hash = ? where id = 1", seq[0], prev[0]);
    }

    /** Newest first. Every filter is optional; limit 1..MAX_LIMIT (400 otherwise). */
    @Transactional(readOnly = true)
    public List<AuditRecord> find(String entityType, Long entityId, String actor, Integer limit) {
        int n = limit == null ? DEFAULT_LIMIT : limit;
        if (n < 1 || n > MAX_LIMIT) throw new BusinessRuleException("limit must be between 1 and " + MAX_LIMIT);
        StringBuilder sql = new StringBuilder("select " + COLUMNS + " from audit_log where 1 = 1");
        List<Object> args = new ArrayList<>();
        if (entityType != null && !entityType.isBlank()) {
            sql.append(" and entity_type = ?");
            args.add(entityType.trim().toUpperCase(Locale.ROOT));
        }
        if (entityId != null) {
            sql.append(" and entity_id = ?");
            args.add(entityId);
        }
        if (actor != null && !actor.isBlank()) {
            sql.append(" and lower(actor) = ?");
            args.add(actor.trim().toLowerCase(Locale.ROOT));
        }
        sql.append(" order by seq desc limit ").append(n);
        return jdbc.query(sql.toString(), ROW, args.toArray());
    }

    /** Recomputes the whole chain and compares its end with the head. */
    @Transactional(readOnly = true)
    public AuditChain.Verification verify() {
        List<AuditRecord> rows = jdbc.query("select " + COLUMNS + " from audit_log order by seq", ROW);
        long[] headSeq = new long[1];
        String[] headHash = new String[1];
        jdbc.query("select last_seq, last_hash from audit_head where id = 1", rs -> {
            headSeq[0] = rs.getLong(1);
            headHash[0] = rs.getString(2);
        });
        return AuditChain.verify(rows, headSeq[0], headHash[0]);
    }

    /** The filtered rows as CSV (oldest first), safe to open in a spreadsheet. */
    @Transactional(readOnly = true)
    public String csv(String entityType, Long entityId, String actor) {
        List<AuditRecord> rows = new ArrayList<>(find(entityType, entityId, actor, MAX_LIMIT));
        java.util.Collections.reverse(rows);
        StringBuilder s = new StringBuilder("seq,occurred_at,actor,entity_type,entity_id,action,field,old_value,new_value,hash\r\n");
        for (AuditRecord r : rows) {
            s.append(r.seq()).append(',').append(cell(r.occurredAt().toString())).append(',').append(cell(r.actor()))
                    .append(',').append(cell(r.entityType())).append(',').append(r.entityId()).append(',')
                    .append(cell(r.action())).append(',').append(cell(r.field())).append(',')
                    .append(cell(r.oldValue())).append(',').append(cell(r.newValue())).append(',')
                    .append(cell(r.hash())).append("\r\n");
        }
        return s.toString();
    }

    /**
     * One CSV cell: quoted, inner quotes doubled. A value that a spreadsheet would run as a formula
     * (=, +, -, @, tab, carriage return at the start) gets a leading apostrophe - CSV injection (OWASP).
     */
    static String cell(String value) {
        return com.rbctcsworld.ecommerce.common.Csv.cell(value);
    }
}



















Active mutators

CONDITIONALS_BOUNDARY
EMPTY_RETURNS
FALSE_RETURNS
INCREMENTS
INVERT_NEGS
MATH
NULL_RETURNS
PRIMITIVE_RETURNS
REMOVE_CONDITIONALS_EQUAL_ELSE
REMOVE_CONDITIONALS_ORDER_ELSE
TRUE_RETURNS
VOID_METHOD_CALLS

Tests examined

com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theCsvIsOldestFirstWithEveryColumn()] (10 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:aCreatedRowHasAnEmptyOldValueCell()] (193 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:cellsThatASpreadsheetWouldRunAsAFormulaAreDefused()] (4 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:verifyFindsAnEditedRowAndRemovedNewestRows()] (7 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:laterEventsContinueTheSameChain()] (8 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:filtersAreCombinedAndForgiving()] (13 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:eachChangeBecomesOneChainedRowAndTheHeadMoves()] (11 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theDefaultLimitIsTwoHundred()] (54 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:pendingEntityChangesAreFlushedBeforeTheHeadIsLocked()] (139 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theLimitMustBeBetweenOneAndOneThousand()] (4 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:aMissingHeadRowStopsTheWrite()] (26 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:anEmptyTrailVerifies()] (4 ms)
com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:anEventWithoutChangesWritesNothing()] (6 ms)

Report generated by PIT 1.30.0 support

1		package com.rbctcsworld.ecommerce.audit;
2
3		import com.rbctcsworld.ecommerce.common.exception.BusinessRuleException;
4		import jakarta.persistence.EntityManager;
5		import org.springframework.jdbc.core.JdbcTemplate;
6		import org.springframework.jdbc.core.RowMapper;
7		import org.springframework.stereotype.Service;
8		import org.springframework.transaction.annotation.Transactional;
9		import org.springframework.transaction.event.TransactionPhase;
10		import org.springframework.transaction.event.TransactionalEventListener;
11
12		import java.time.Clock;
13		import java.time.LocalDateTime;
14		import java.time.temporal.ChronoUnit;
15		import java.util.ArrayList;
16		import java.util.List;
17		import java.util.Locale;
18
19		/**
20		* Writes and reads the audit trail (audit_log).
21		*
22		* Writing: services publish an AuditEvent inside their transaction. Just before that transaction commits,
23		* this listener first flushes the pending entity changes (so every row lock the transaction needs is already
24		* taken), then locks the chain head, appends one row per changed field and moves the head. The head is the
25		* LAST lock any transaction takes, so audited transactions cannot deadlock on it. If writing fails, the
26		* whole transaction rolls back: no change without its audit row.
27		*
28		* Reading (store admin): filter, verify the hash chain, export as CSV.
29		*/
30		@Service
31		public class AuditService {
32
33		public static final int DEFAULT_LIMIT = 200;
34		public static final int MAX_LIMIT = 1000;
35
36		private static final RowMapper<AuditRecord> ROW = (rs, i) -> new AuditRecord(rs.getLong("seq"),
37		rs.getTimestamp("occurred_at").toLocalDateTime(), rs.getString("actor"), rs.getString("entity_type"),
38		rs.getLong("entity_id"), rs.getString("action"), rs.getString("field"), rs.getString("old_value"),
39		rs.getString("new_value"), rs.getString("prev_hash"), rs.getString("hash"));
40		private static final String COLUMNS =
41		"seq, occurred_at, actor, entity_type, entity_id, action, field, old_value, new_value, prev_hash, hash";
42
43		private final JdbcTemplate jdbc;
44		private final EntityManager em;
45		private final Clock clock;
46
47		public AuditService(JdbcTemplate jdbc, EntityManager em, Clock clock) {
48		this.jdbc = jdbc;
49		this.em = em;
50		this.clock = clock;
51		}
52
53		@TransactionalEventListener(phase = TransactionPhase.BEFORE_COMMIT)
54		public void on(AuditEvent event) {
55	1 1. on : removed conditional - replaced equality check with false → KILLED	if (event.changes().isEmpty()) return;
56	1 1. on : removed call to jakarta/persistence/EntityManager::flush → KILLED	em.flush();
57	1 1. on : removed call to com/rbctcsworld/ecommerce/audit/AuditService::append → KILLED	append(event.actor(), event.changes());
58		}
59
60		void append(String actor, List<AuditChange> changes) {
61		long[] seq = new long[1];
62		String[] prev = new String[1];
63	1 1. append : removed call to org/springframework/jdbc/core/JdbcTemplate::query → KILLED	jdbc.query("select last_seq, last_hash from audit_head where id = 1 for update", rs -> {
64		seq[0] = rs.getLong(1);
65		prev[0] = rs.getString(2);
66		});
67	1 1. append : removed conditional - replaced equality check with false → KILLED	if (prev[0] == null) throw new IllegalStateException("audit_head row is missing");
68		LocalDateTime now = LocalDateTime.now(clock).truncatedTo(ChronoUnit.MILLIS);
69		for (AuditChange c : changes) {
70	1 1. append : Replaced long addition with subtraction → KILLED	seq[0]++;
71		String hash = AuditChain.hash(prev[0], seq[0], now, actor, c.entityType(), c.entityId(), c.action(),
72		c.field(), c.oldValue(), c.newValue());
73		jdbc.update("insert into audit_log (" + COLUMNS + ") values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
74		seq[0], now, actor, c.entityType(), c.entityId(), c.action(), c.field(), c.oldValue(),
75		c.newValue(), prev[0], hash);
76		prev[0] = hash;
77		}
78		jdbc.update("update audit_head set last_seq = ?, last_hash = ? where id = 1", seq[0], prev[0]);
79		}
80
81		/** Newest first. Every filter is optional; limit 1..MAX_LIMIT (400 otherwise). */
82		@Transactional(readOnly = true)
83		public List<AuditRecord> find(String entityType, Long entityId, String actor, Integer limit) {
84	1 1. find : removed conditional - replaced equality check with false → KILLED	int n = limit == null ? DEFAULT_LIMIT : limit;
85	4 1. find : removed conditional - replaced comparison check with false → KILLED 2. find : removed conditional - replaced comparison check with false → KILLED 3. find : changed conditional boundary → KILLED 4. find : changed conditional boundary → KILLED	if (n < 1 \|\| n > MAX_LIMIT) throw new BusinessRuleException("limit must be between 1 and " + MAX_LIMIT);
86		StringBuilder sql = new StringBuilder("select " + COLUMNS + " from audit_log where 1 = 1");
87		List<Object> args = new ArrayList<>();
88	2 1. find : removed conditional - replaced equality check with false → KILLED 2. find : removed conditional - replaced equality check with false → KILLED	if (entityType != null && !entityType.isBlank()) {
89		sql.append(" and entity_type = ?");
90		args.add(entityType.trim().toUpperCase(Locale.ROOT));
91		}
92	1 1. find : removed conditional - replaced equality check with false → KILLED	if (entityId != null) {
93		sql.append(" and entity_id = ?");
94		args.add(entityId);
95		}
96	2 1. find : removed conditional - replaced equality check with false → KILLED 2. find : removed conditional - replaced equality check with false → KILLED	if (actor != null && !actor.isBlank()) {
97		sql.append(" and lower(actor) = ?");
98		args.add(actor.trim().toLowerCase(Locale.ROOT));
99		}
100		sql.append(" order by seq desc limit ").append(n);
101	1 1. find : replaced return value with Collections.emptyList for com/rbctcsworld/ecommerce/audit/AuditService::find → KILLED	return jdbc.query(sql.toString(), ROW, args.toArray());
102		}
103
104		/** Recomputes the whole chain and compares its end with the head. */
105		@Transactional(readOnly = true)
106		public AuditChain.Verification verify() {
107		List<AuditRecord> rows = jdbc.query("select " + COLUMNS + " from audit_log order by seq", ROW);
108		long[] headSeq = new long[1];
109		String[] headHash = new String[1];
110	1 1. verify : removed call to org/springframework/jdbc/core/JdbcTemplate::query → KILLED	jdbc.query("select last_seq, last_hash from audit_head where id = 1", rs -> {
111		headSeq[0] = rs.getLong(1);
112		headHash[0] = rs.getString(2);
113		});
114	1 1. verify : replaced return value with null for com/rbctcsworld/ecommerce/audit/AuditService::verify → KILLED	return AuditChain.verify(rows, headSeq[0], headHash[0]);
115		}
116
117		/** The filtered rows as CSV (oldest first), safe to open in a spreadsheet. */
118		@Transactional(readOnly = true)
119		public String csv(String entityType, Long entityId, String actor) {
120		List<AuditRecord> rows = new ArrayList<>(find(entityType, entityId, actor, MAX_LIMIT));
121	1 1. csv : removed call to java/util/Collections::reverse → KILLED	java.util.Collections.reverse(rows);
122		StringBuilder s = new StringBuilder("seq,occurred_at,actor,entity_type,entity_id,action,field,old_value,new_value,hash\r\n");
123		for (AuditRecord r : rows) {
124		s.append(r.seq()).append(',').append(cell(r.occurredAt().toString())).append(',').append(cell(r.actor()))
125		.append(',').append(cell(r.entityType())).append(',').append(r.entityId()).append(',')
126		.append(cell(r.action())).append(',').append(cell(r.field())).append(',')
127		.append(cell(r.oldValue())).append(',').append(cell(r.newValue())).append(',')
128		.append(cell(r.hash())).append("\r\n");
129		}
130	1 1. csv : replaced return value with "" for com/rbctcsworld/ecommerce/audit/AuditService::csv → KILLED	return s.toString();
131		}
132
133		/**
134		* One CSV cell: quoted, inner quotes doubled. A value that a spreadsheet would run as a formula
135		* (=, +, -, @, tab, carriage return at the start) gets a leading apostrophe - CSV injection (OWASP).
136		*/
137		static String cell(String value) {
138	1 1. cell : replaced return value with "" for com/rbctcsworld/ecommerce/audit/AuditService::cell → KILLED	return com.rbctcsworld.ecommerce.common.Csv.cell(value);
139		}
140		}
		Mutations
55		1.1 Location : on Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:anEventWithoutChangesWritesNothing()] removed conditional - replaced equality check with false → KILLED
56		1.1 Location : on Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:pendingEntityChangesAreFlushedBeforeTheHeadIsLocked()] removed call to jakarta/persistence/EntityManager::flush → KILLED
57		1.1 Location : on Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:verifyFindsAnEditedRowAndRemovedNewestRows()] removed call to com/rbctcsworld/ecommerce/audit/AuditService::append → KILLED
63		1.1 Location : append Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:verifyFindsAnEditedRowAndRemovedNewestRows()] removed call to org/springframework/jdbc/core/JdbcTemplate::query → KILLED
67		1.1 Location : append Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:aMissingHeadRowStopsTheWrite()] removed conditional - replaced equality check with false → KILLED
70		1.1 Location : append Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:verifyFindsAnEditedRowAndRemovedNewestRows()] Replaced long addition with subtraction → KILLED
84		1.1 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:laterEventsContinueTheSameChain()] removed conditional - replaced equality check with false → KILLED
85		1.1 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theLimitMustBeBetweenOneAndOneThousand()] removed conditional - replaced comparison check with false → KILLED 2.2 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theLimitMustBeBetweenOneAndOneThousand()] removed conditional - replaced comparison check with false → KILLED 3.3 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theLimitMustBeBetweenOneAndOneThousand()] changed conditional boundary → KILLED 4.4 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theLimitMustBeBetweenOneAndOneThousand()] changed conditional boundary → KILLED
88		1.1 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:filtersAreCombinedAndForgiving()] removed conditional - replaced equality check with false → KILLED 2.2 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:filtersAreCombinedAndForgiving()] removed conditional - replaced equality check with false → KILLED
92		1.1 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:filtersAreCombinedAndForgiving()] removed conditional - replaced equality check with false → KILLED
96		1.1 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:filtersAreCombinedAndForgiving()] removed conditional - replaced equality check with false → KILLED 2.2 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:filtersAreCombinedAndForgiving()] removed conditional - replaced equality check with false → KILLED
101		1.1 Location : find Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:laterEventsContinueTheSameChain()] replaced return value with Collections.emptyList for com/rbctcsworld/ecommerce/audit/AuditService::find → KILLED
110		1.1 Location : verify Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:anEmptyTrailVerifies()] removed call to org/springframework/jdbc/core/JdbcTemplate::query → KILLED
114		1.1 Location : verify Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:anEmptyTrailVerifies()] replaced return value with null for com/rbctcsworld/ecommerce/audit/AuditService::verify → KILLED
121		1.1 Location : csv Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theCsvIsOldestFirstWithEveryColumn()] removed call to java/util/Collections::reverse → KILLED
130		1.1 Location : csv Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:theCsvIsOldestFirstWithEveryColumn()] replaced return value with "" for com/rbctcsworld/ecommerce/audit/AuditService::csv → KILLED
138		1.1 Location : cell Killed by : com.rbctcsworld.ecommerce.audit.AuditServiceTest.[engine:junit-jupiter]/[class:com.rbctcsworld.ecommerce.audit.AuditServiceTest]/[method:cellsThatASpreadsheetWouldRunAsAFormulaAreDefused()] replaced return value with "" for com/rbctcsworld/ecommerce/audit/AuditService::cell → KILLED

AuditService.java

Mutations

Active mutators

Tests examined