Files
archived-Reclass/tests/test_scanner.cpp
IChooseYou 6a30e0a402 fix: replace remaining QList::append({}) in plugins and tests
Missed plugin and test directories in the previous Qt 6.8 compat fix.
2026-03-14 12:11:08 -06:00

2000 lines
78 KiB
C++

#include <QTest>
#include <QSignalSpy>
#include <QByteArray>
#include <cstring>
#include <cmath>
#include "scanner.h"
#include "providers/provider.h"
#include "providers/buffer_provider.h"
#include "providers/null_provider.h"
using namespace rcx;
// ── Test provider that exposes custom memory regions ──
class RegionProvider : public BufferProvider {
QVector<MemoryRegion> m_regions;
public:
RegionProvider(QByteArray data, QVector<MemoryRegion> regions)
: BufferProvider(std::move(data), "test")
, m_regions(std::move(regions)) {}
QVector<MemoryRegion> enumerateRegions() const override { return m_regions; }
};
class TestScanner : public QObject {
Q_OBJECT
private slots:
// ═══════════════════════════════════════════════════════════════════
// Pattern Parsing — Signature mode
// ═══════════════════════════════════════════════════════════════════
void parse_emptyPattern() {
QByteArray pat, mask;
QString err;
QVERIFY(!parseSignature("", pat, mask, &err));
QVERIFY(err.contains("Empty"));
}
void parse_spacesOnly() {
QByteArray pat, mask;
QString err;
QVERIFY(!parseSignature(" ", pat, mask, &err));
QVERIFY(err.contains("Empty"));
}
void parse_singleByte() {
QByteArray pat, mask;
QVERIFY(parseSignature("AB", pat, mask));
QCOMPARE(pat.size(), 1);
QCOMPARE((uint8_t)pat[0], (uint8_t)0xAB);
QCOMPARE((uint8_t)mask[0], (uint8_t)0xFF);
}
void parse_spaceSeparated() {
QByteArray pat, mask;
QVERIFY(parseSignature("48 8B 05", pat, mask));
QCOMPARE(pat.size(), 3);
QCOMPARE((uint8_t)pat[0], (uint8_t)0x48);
QCOMPARE((uint8_t)pat[1], (uint8_t)0x8B);
QCOMPARE((uint8_t)pat[2], (uint8_t)0x05);
QCOMPARE((uint8_t)mask[0], (uint8_t)0xFF);
QCOMPARE((uint8_t)mask[1], (uint8_t)0xFF);
QCOMPARE((uint8_t)mask[2], (uint8_t)0xFF);
}
void parse_withWildcards() {
QByteArray pat, mask;
QVERIFY(parseSignature("48 ?? 05 ?? ??", pat, mask));
QCOMPARE(pat.size(), 5);
QCOMPARE((uint8_t)pat[0], (uint8_t)0x48);
QCOMPARE((uint8_t)pat[2], (uint8_t)0x05);
QCOMPARE((uint8_t)mask[0], (uint8_t)0xFF);
QCOMPARE((uint8_t)mask[1], (uint8_t)0x00); // wildcard
QCOMPARE((uint8_t)mask[2], (uint8_t)0xFF);
QCOMPARE((uint8_t)mask[3], (uint8_t)0x00);
QCOMPARE((uint8_t)mask[4], (uint8_t)0x00);
}
void parse_singleQuestionMark() {
QByteArray pat, mask;
QVERIFY(parseSignature("48 ? 05", pat, mask));
QCOMPARE((uint8_t)mask[1], (uint8_t)0x00);
}
void parse_packedNoSpaces() {
QByteArray pat, mask;
QVERIFY(parseSignature("488B??05CC", pat, mask));
QCOMPARE(pat.size(), 5);
QCOMPARE((uint8_t)pat[0], (uint8_t)0x48);
QCOMPARE((uint8_t)pat[1], (uint8_t)0x8B);
QCOMPARE((uint8_t)mask[2], (uint8_t)0x00);
QCOMPARE((uint8_t)pat[3], (uint8_t)0x05);
QCOMPARE((uint8_t)pat[4], (uint8_t)0xCC);
}
void parse_cStyle() {
QByteArray pat, mask;
QVERIFY(parseSignature("\\x48\\x8B\\x05", pat, mask));
QCOMPARE(pat.size(), 3);
QCOMPARE((uint8_t)pat[0], (uint8_t)0x48);
QCOMPARE((uint8_t)pat[1], (uint8_t)0x8B);
QCOMPARE((uint8_t)pat[2], (uint8_t)0x05);
}
void parse_lowercaseHex() {
QByteArray pat, mask;
QVERIFY(parseSignature("ab cd ef", pat, mask));
QCOMPARE((uint8_t)pat[0], (uint8_t)0xAB);
QCOMPARE((uint8_t)pat[1], (uint8_t)0xCD);
QCOMPARE((uint8_t)pat[2], (uint8_t)0xEF);
}
void parse_mixedCase() {
QByteArray pat, mask;
QVERIFY(parseSignature("aB Cd eF", pat, mask));
QCOMPARE((uint8_t)pat[0], (uint8_t)0xAB);
QCOMPARE((uint8_t)pat[1], (uint8_t)0xCD);
QCOMPARE((uint8_t)pat[2], (uint8_t)0xEF);
}
void parse_invalidHex() {
QByteArray pat, mask;
QString err;
QVERIFY(!parseSignature("GG", pat, mask, &err));
QVERIFY(!err.isEmpty());
}
void parse_oddCharsNoSpaces() {
QByteArray pat, mask;
QString err;
QVERIFY(!parseSignature("ABC", pat, mask, &err));
QVERIFY(err.contains("Odd"));
}
void parse_invalidTokenWidth() {
QByteArray pat, mask;
QString err;
QVERIFY(!parseSignature("48 ABC 05", pat, mask, &err));
QVERIFY(!err.isEmpty());
}
void parse_leadingTrailingSpaces() {
QByteArray pat, mask;
QVERIFY(parseSignature(" 48 8B ", pat, mask));
QCOMPARE(pat.size(), 2);
}
void parse_allWildcards() {
QByteArray pat, mask;
QVERIFY(parseSignature("?? ?? ??", pat, mask));
QCOMPARE(pat.size(), 3);
for (int i = 0; i < 3; i++)
QCOMPARE((uint8_t)mask[i], (uint8_t)0x00);
}
// ═══════════════════════════════════════════════════════════════════
// Value Serialization
// ═══════════════════════════════════════════════════════════════════
void serialize_int8() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int8, "-42", pat, mask));
QCOMPARE(pat.size(), 1);
QCOMPARE((int8_t)pat[0], (int8_t)-42);
QCOMPARE((uint8_t)mask[0], (uint8_t)0xFF);
}
void serialize_int8_overflow() {
QByteArray pat, mask;
QString err;
QVERIFY(!serializeValue(ValueType::Int8, "200", pat, mask, &err));
}
void serialize_int16() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int16, "-1000", pat, mask));
QCOMPARE(pat.size(), 2);
int16_t v;
std::memcpy(&v, pat.constData(), 2);
QCOMPARE(v, (int16_t)-1000);
}
void serialize_int32() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int32, "12345", pat, mask));
QCOMPARE(pat.size(), 4);
int32_t v;
std::memcpy(&v, pat.constData(), 4);
QCOMPARE(v, 12345);
}
void serialize_int32_negative() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int32, "-1", pat, mask));
int32_t v;
std::memcpy(&v, pat.constData(), 4);
QCOMPARE(v, -1);
}
void serialize_int64() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int64, "9999999999", pat, mask));
QCOMPARE(pat.size(), 8);
int64_t v;
std::memcpy(&v, pat.constData(), 8);
QCOMPARE(v, (int64_t)9999999999LL);
}
void serialize_uint8() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt8, "255", pat, mask));
QCOMPARE(pat.size(), 1);
QCOMPARE((uint8_t)pat[0], (uint8_t)255);
}
void serialize_uint8_hex() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt8, "0xFF", pat, mask));
QCOMPARE((uint8_t)pat[0], (uint8_t)0xFF);
}
void serialize_uint16() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt16, "1234", pat, mask));
QCOMPARE(pat.size(), 2);
uint16_t v;
std::memcpy(&v, pat.constData(), 2);
QCOMPARE(v, (uint16_t)1234);
}
void serialize_uint32() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt32, "0xDEADBEEF", pat, mask));
QCOMPARE(pat.size(), 4);
uint32_t v;
std::memcpy(&v, pat.constData(), 4);
QCOMPARE(v, (uint32_t)0xDEADBEEF);
}
void serialize_uint64() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt64, "0xCAFEBABEDEADBEEF", pat, mask));
QCOMPARE(pat.size(), 8);
uint64_t v;
std::memcpy(&v, pat.constData(), 8);
QCOMPARE(v, (uint64_t)0xCAFEBABEDEADBEEFULL);
}
void serialize_float() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Float, "3.14", pat, mask));
QCOMPARE(pat.size(), 4);
float v;
std::memcpy(&v, pat.constData(), 4);
QCOMPARE(v, 3.14f);
}
void serialize_double() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Double, "2.71828", pat, mask));
QCOMPARE(pat.size(), 8);
double v;
std::memcpy(&v, pat.constData(), 8);
QCOMPARE(v, 2.71828);
}
void serialize_vec2() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Vec2, "1.0 2.0", pat, mask));
QCOMPARE(pat.size(), 8);
float v[2];
std::memcpy(v, pat.constData(), 8);
QCOMPARE(v[0], 1.0f);
QCOMPARE(v[1], 2.0f);
}
void serialize_vec3() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Vec3, "1.0 0.0 0.0", pat, mask));
QCOMPARE(pat.size(), 12);
float v[3];
std::memcpy(v, pat.constData(), 12);
QCOMPARE(v[0], 1.0f);
QCOMPARE(v[1], 0.0f);
QCOMPARE(v[2], 0.0f);
}
void serialize_vec3_wrongCount() {
QByteArray pat, mask;
QString err;
QVERIFY(!serializeValue(ValueType::Vec3, "1.0 2.0", pat, mask, &err));
QVERIFY(err.contains("3"));
}
void serialize_vec4() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Vec4, "1.0 2.0 3.0 4.0", pat, mask));
QCOMPARE(pat.size(), 16);
float v[4];
std::memcpy(v, pat.constData(), 16);
QCOMPARE(v[0], 1.0f);
QCOMPARE(v[1], 2.0f);
QCOMPARE(v[2], 3.0f);
QCOMPARE(v[3], 4.0f);
}
void serialize_utf8() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UTF8, "Hello", pat, mask));
QCOMPARE(pat, QByteArray("Hello"));
}
void serialize_utf16() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UTF16, "Hi", pat, mask));
QCOMPARE(pat.size(), 4); // 2 chars * 2 bytes
uint16_t v[2];
std::memcpy(v, pat.constData(), 4);
QCOMPARE(v[0], (uint16_t)'H');
QCOMPARE(v[1], (uint16_t)'i');
}
void serialize_hexBytes() {
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::HexBytes, "DE AD BE EF", pat, mask));
QCOMPARE(pat.size(), 4);
QCOMPARE((uint8_t)pat[0], (uint8_t)0xDE);
QCOMPARE((uint8_t)pat[1], (uint8_t)0xAD);
QCOMPARE((uint8_t)pat[2], (uint8_t)0xBE);
QCOMPARE((uint8_t)pat[3], (uint8_t)0xEF);
}
void serialize_emptyValue() {
QByteArray pat, mask;
QString err;
QVERIFY(!serializeValue(ValueType::Int32, "", pat, mask, &err));
QVERIFY(err.contains("Empty"));
}
void serialize_invalidInt() {
QByteArray pat, mask;
QString err;
QVERIFY(!serializeValue(ValueType::Int32, "notanumber", pat, mask, &err));
}
void serialize_invalidFloat() {
QByteArray pat, mask;
QString err;
QVERIFY(!serializeValue(ValueType::Float, "abc", pat, mask, &err));
}
// ═══════════════════════════════════════════════════════════════════
// Natural Alignment
// ═══════════════════════════════════════════════════════════════════
void alignment_int8() { QCOMPARE(naturalAlignment(ValueType::Int8), 1); }
void alignment_int16() { QCOMPARE(naturalAlignment(ValueType::Int16), 2); }
void alignment_int32() { QCOMPARE(naturalAlignment(ValueType::Int32), 4); }
void alignment_int64() { QCOMPARE(naturalAlignment(ValueType::Int64), 8); }
void alignment_float() { QCOMPARE(naturalAlignment(ValueType::Float), 4); }
void alignment_double(){ QCOMPARE(naturalAlignment(ValueType::Double),8); }
void alignment_vec3() { QCOMPARE(naturalAlignment(ValueType::Vec3), 4); }
void alignment_utf8() { QCOMPARE(naturalAlignment(ValueType::UTF8), 1); }
void alignment_utf16() { QCOMPARE(naturalAlignment(ValueType::UTF16), 2); }
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Basic functionality
// ═══════════════════════════════════════════════════════════════════
void scan_exactMatch() {
// Buffer: 00 11 22 33 44 55 66 77
QByteArray data(8, '\0');
data[2] = 0x22; data[3] = 0x33;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\x22\x33", 2);
req.mask = QByteArray("\xFF\xFF", 2);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)2);
}
void scan_wildcardMatch() {
// Buffer with known pattern
QByteArray data(16, '\0');
data[0] = 0x48; data[1] = 0x8B; data[2] = 0xAA; data[3] = 0x05;
data[8] = 0x48; data[9] = 0x8B; data[10] = 0xBB; data[11] = 0x05;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
// Pattern: 48 8B ?? 05
req.pattern = QByteArray("\x48\x8B\x00\x05", 4);
req.mask = QByteArray("\xFF\xFF\x00\xFF", 4);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)0);
QCOMPARE(results[1].address, (uint64_t)8);
}
void scan_noMatch() {
QByteArray data(32, '\0');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xFF\xFF", 2);
req.mask = QByteArray("\xFF\xFF", 2);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_alignment4() {
// Put pattern at offset 2 (not 4-aligned) and offset 4 (4-aligned)
QByteArray data(16, '\0');
data[2] = 0xAA; data[3] = 0xBB;
data[4] = 0xAA; data[5] = 0xBB;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA\xBB", 2);
req.mask = QByteArray("\xFF\xFF", 2);
req.alignment = 4;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)4); // only 4-aligned match
}
void scan_maxResults() {
// Fill buffer with pattern every byte
QByteArray data(1000, '\xAA');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA", 1);
req.mask = QByteArray("\xFF", 1);
req.maxResults = 10;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 10); // capped at maxResults
}
void scan_emptyProvider() {
auto prov = std::make_shared<NullProvider>();
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_emptyPattern() {
auto prov = std::make_shared<BufferProvider>(QByteArray(16, '\0'));
ScanEngine engine;
QSignalSpy errSpy(&engine, &ScanEngine::error);
ScanRequest req;
// Empty pattern — error emitted synchronously
engine.start(prov, req);
QCOMPARE(errSpy.size(), 1);
}
void scan_chunkBoundaryOverlap() {
// Create a buffer where the pattern straddles a chunk boundary
// Use a small-ish buffer and simulate by creating a pattern
// that sits at a position that would be at the overlap zone
const int kChunkSize = 256 * 1024;
QByteArray data(kChunkSize + 16, '\0');
// Place pattern right at chunk boundary
int pos = kChunkSize - 2; // pattern starts 2 bytes before boundary
data[pos] = 0xDE;
data[pos + 1] = 0xAD;
data[pos + 2] = 0xBE;
data[pos + 3] = 0xEF;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xDE\xAD\xBE\xEF", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
engine.start(prov, req);
QVERIFY(finSpy.wait(10000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)pos);
}
void scan_multipleMatches() {
QByteArray data(64, '\0');
// Place pattern at offsets 0, 16, 32, 48
for (int i = 0; i < 4; i++) {
data[i * 16] = 0xCA;
data[i * 16 + 1] = 0xFE;
}
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xCA\xFE", 2);
req.mask = QByteArray("\xFF\xFF", 2);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 4);
for (int i = 0; i < 4; i++)
QCOMPARE(results[i].address, (uint64_t)(i * 16));
}
void scan_singleBytePattern() {
QByteArray data(8, '\0');
data[5] = 0x42;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\x42", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)5);
}
void scan_patternLargerThanData() {
QByteArray data(4, '\xAA');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(8, '\xAA');
req.mask = QByteArray(8, '\xFF');
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_patternExactSize() {
QByteArray data("\xDE\xAD\xBE\xEF", 4);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xDE\xAD\xBE\xEF", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)0);
}
void scan_atEndOfBuffer() {
QByteArray data(32, '\0');
data[30] = 0xAB;
data[31] = 0xCD;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAB\xCD", 2);
req.mask = QByteArray("\xFF\xFF", 2);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)30);
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Region filtering
// ═══════════════════════════════════════════════════════════════════
void scan_filterExecutable() {
QByteArray data(32, '\0');
data[0] = 0xAA; // in region 0 (not executable)
data[16] = 0xAA; // in region 1 (executable)
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, "heap"});
regions.push_back(MemoryRegion{16, 16, true, false, true, "code"});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA", 1);
req.mask = QByteArray("\xFF", 1);
req.filterExecutable = true;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)16);
QCOMPARE(results[0].regionModule, QStringLiteral("code"));
}
void scan_filterWritable() {
QByteArray data(32, '\0');
data[0] = 0xBB; // region 0 (writable)
data[16] = 0xBB; // region 1 (not writable)
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, "data"});
regions.push_back(MemoryRegion{16, 16, true, false, true, "code"});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xBB", 1);
req.mask = QByteArray("\xFF", 1);
req.filterWritable = true;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)0);
}
void scan_bothFilters() {
QByteArray data(48, '\0');
data[0] = 0xCC; // region 0: +w -x
data[16] = 0xCC; // region 1: -w +x
data[32] = 0xCC; // region 2: +w +x
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, "data"});
regions.push_back(MemoryRegion{16, 16, true, false, true, "code"});
regions.push_back(MemoryRegion{32, 16, true, true, true, "rwx"});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xCC", 1);
req.mask = QByteArray("\xFF", 1);
req.filterExecutable = true;
req.filterWritable = true;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
// Both filters: region must be BOTH executable AND writable
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)32);
}
void scan_regionModuleName() {
QByteArray data(16, '\0');
data[0] = 0xDD;
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, true, "Game.exe"});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xDD", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].regionModule, QStringLiteral("Game.exe"));
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Abort
// ═══════════════════════════════════════════════════════════════════
void scan_abort() {
// Large buffer to ensure scan takes measurable time
QByteArray data(1024 * 1024, '\0'); // 1MB
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xFF", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(engine.isRunning());
engine.abort();
QVERIFY(finSpy.wait(5000));
// Should complete (possibly with 0 results since buffer is all zeros anyway)
QCOMPARE(finSpy.size(), 1);
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Progress signal
// ═══════════════════════════════════════════════════════════════════
void scan_progressEmitted() {
QByteArray data(512 * 1024, '\0'); // 512KB
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
QSignalSpy progSpy(&engine, &ScanEngine::progress);
ScanRequest req;
req.pattern = QByteArray("\xFF", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
// Should have at least one progress signal
QVERIFY(progSpy.size() > 0);
// Last progress should be near 100
int lastPct = progSpy.last().first().toInt();
QVERIFY(lastPct >= 50); // at least past halfway
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — isRunning
// ═══════════════════════════════════════════════════════════════════
void scan_isRunning() {
ScanEngine engine;
QVERIFY(!engine.isRunning());
QByteArray data(256 * 1024, '\0');
auto prov = std::make_shared<BufferProvider>(data);
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xFF", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
// May or may not be running depending on thread scheduling
// Just verify it completes
QVERIFY(finSpy.wait(5000));
QVERIFY(!engine.isRunning());
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Value scan integration
// ═══════════════════════════════════════════════════════════════════
void scan_findInt32Value() {
QByteArray data(64, '\0');
int32_t target = 12345;
std::memcpy(data.data() + 20, &target, 4);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int32, "12345", pat, mask));
ScanRequest req;
req.pattern = pat;
req.mask = mask;
req.alignment = 4;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)20);
}
void scan_findFloatValue() {
QByteArray data(64, '\0');
float target = 3.14f;
std::memcpy(data.data() + 8, &target, 4);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Float, "3.14", pat, mask));
ScanRequest req;
req.pattern = pat;
req.mask = mask;
req.alignment = 4;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)8);
}
void scan_findUtf16String() {
QByteArray data(128, '\0');
// Write "Hi" in UTF-16LE at offset 32
uint16_t chars[] = { 'H', 'i' };
std::memcpy(data.data() + 32, chars, 4);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UTF16, "Hi", pat, mask));
ScanRequest req;
req.pattern = pat;
req.mask = mask;
req.alignment = 2;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)32);
}
void scan_findVec3() {
QByteArray data(64, '\0');
float v[] = { 1.0f, 0.0f, 0.0f };
std::memcpy(data.data() + 12, v, 12);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Vec3, "1.0 0.0 0.0", pat, mask));
ScanRequest req;
req.pattern = pat;
req.mask = mask;
req.alignment = 4;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)12);
}
// ═══════════════════════════════════════════════════════════════════
// Provider — enumerateRegions default
// ═══════════════════════════════════════════════════════════════════
void provider_defaultRegionsEmpty() {
BufferProvider p(QByteArray(16, '\0'));
auto regions = p.enumerateRegions();
QVERIFY(regions.isEmpty());
}
void provider_nullProviderRegionsEmpty() {
NullProvider p;
auto regions = p.enumerateRegions();
QVERIFY(regions.isEmpty());
}
void provider_customRegions() {
QVector<MemoryRegion> regs;
regs.push_back(MemoryRegion{0x1000, 0x2000, true, true, false, "heap"});
regs.push_back(MemoryRegion{0x3000, 0x1000, true, false, true, "code"});
RegionProvider p(QByteArray(0x4000, '\0'), regs);
auto result = p.enumerateRegions();
QCOMPARE(result.size(), 2);
QCOMPARE(result[0].base, (uint64_t)0x1000);
QCOMPARE(result[0].moduleName, QStringLiteral("heap"));
QCOMPARE(result[1].executable, true);
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Mask/pattern size mismatch
// ═══════════════════════════════════════════════════════════════════
void scan_maskSizeMismatch() {
auto prov = std::make_shared<BufferProvider>(QByteArray(16, '\0'));
ScanEngine engine;
QSignalSpy errSpy(&engine, &ScanEngine::error);
ScanRequest req;
req.pattern = QByteArray(4, '\x00');
req.mask = QByteArray(2, '\xFF'); // mismatch!
engine.start(prov, req);
QCOMPARE(errSpy.size(), 1);
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Multiple regions, pattern found in each
// ═══════════════════════════════════════════════════════════════════
void scan_multipleRegions() {
QByteArray data(48, '\0');
data[4] = 0xEE; // region 0
data[20] = 0xEE; // region 1
data[36] = 0xEE; // region 2
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, "region0"});
regions.push_back(MemoryRegion{16, 16, true, true, false, "region1"});
regions.push_back(MemoryRegion{32, 16, true, true, false, "region2"});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xEE", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 3);
QCOMPARE(results[0].regionModule, QStringLiteral("region0"));
QCOMPARE(results[1].regionModule, QStringLiteral("region1"));
QCOMPARE(results[2].regionModule, QStringLiteral("region2"));
}
// ═══════════════════════════════════════════════════════════════════
// Scan Engine — Overlapping matches
// ═══════════════════════════════════════════════════════════════════
void scan_overlappingMatches() {
// Pattern AA AA — in buffer AA AA AA should find matches at 0 and 1
QByteArray data(4, '\0');
data[0] = 0xAA; data[1] = 0xAA; data[2] = 0xAA;
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA\xAA", 2);
req.mask = QByteArray("\xFF\xFF", 2);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)0);
QCOMPARE(results[1].address, (uint64_t)1);
}
// ═══════════════════════════════════════════════════════════════════
// Edge case: scan 1-byte buffer
// ═══════════════════════════════════════════════════════════════════
void scan_oneByteBuffer() {
QByteArray data(1, '\xAB');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAB", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)0);
}
// ═══════════════════════════════════════════════════════════════════
// Edge case: all-wildcard pattern matches everywhere
// ═══════════════════════════════════════════════════════════════════
void scan_allWildcardPattern() {
QByteArray data(8, '\x42');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(2, '\x00');
req.mask = QByteArray(2, '\x00'); // all wildcards
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 7); // 8 - 2 + 1 = 7 positions
}
// ═══════════════════════════════════════════════════════════════════
// Address range filtering — "Current Struct" support
// ═══════════════════════════════════════════════════════════════════
void scan_addressRangeNoLimit() {
// startAddress=0, endAddress=0 → scan all (default behavior unchanged)
QByteArray data(32, '\x00');
data[8] = '\xAA'; data[16] = '\xAA'; data[24] = '\xAA';
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA", 1);
req.mask = QByteArray("\xFF", 1);
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 3); // all 3 found
}
void scan_addressRangeClipsResults() {
// Only scan addresses [8, 20) — should find match at offset 8 and 16 but not 24
QByteArray data(32, '\x00');
data[8] = '\xAA'; data[16] = '\xAA'; data[24] = '\xAA';
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA", 1);
req.mask = QByteArray("\xFF", 1);
req.startAddress = 8;
req.endAddress = 20;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)8);
QCOMPARE(results[1].address, (uint64_t)16);
}
void scan_addressRangeOutsideData() {
// Range entirely outside data → no results
QByteArray data(16, '\xAA');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA", 1);
req.mask = QByteArray("\xFF", 1);
req.startAddress = 100;
req.endAddress = 200;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_addressRangeWithRegions() {
// Two regions: [1000, 1016) and [2000, 2016). Range [1000, 1020) clips to first region only.
QByteArray data(4096, '\x00');
// Place \xBB at offset 1000 and 2000
data[1000] = '\xBB';
data[2000] = '\xBB';
QVector<MemoryRegion> regions;
{ MemoryRegion r; r.base = 1000; r.size = 16; r.readable = true; r.writable = true; regions.append(r); }
{ MemoryRegion r; r.base = 2000; r.size = 16; r.readable = true; r.writable = true; regions.append(r); }
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xBB", 1);
req.mask = QByteArray("\xFF", 1);
req.startAddress = 1000;
req.endAddress = 1020;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)1000);
}
void scan_unknownWithAddressRange() {
// Unknown scan with address range should only capture within range
QByteArray data(32, '\x42');
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.condition = ScanCondition::UnknownValue;
req.valueSize = 4;
req.alignment = 4;
req.startAddress = 8;
req.endAddress = 24;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
// Range [8, 24) = 16 bytes, alignment 4, valueSize 4 → offsets 8, 12, 16, 20 = 4 results
QCOMPARE(results.size(), 4);
QCOMPARE(results[0].address, (uint64_t)8);
QCOMPARE(results[3].address, (uint64_t)20);
}
// -- constrainRegions (multi-range intersection) --
void scan_constrainRegions_multipleRanges() {
QByteArray data(32, 0);
data[4] = char(0xBB);
data[12] = char(0xBB);
data[20] = char(0xBB);
data[28] = char(0xBB);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xBB", 1);
req.mask = QByteArray("\xFF", 1);
req.constrainRegions = {{0, 8}, {16, 24}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)4);
QCOMPARE(results[1].address, (uint64_t)20);
}
void scan_constrainRegions_intersectsProviderRegions() {
QByteArray data(256, 0);
data[160] = char(0xCC);
data[210] = char(0xCC);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{100, 100, true, false, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xCC", 1);
req.mask = QByteArray("\xFF", 1);
req.constrainRegions = {{150, 250}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)160);
}
void scan_constrainRegions_noOverlap() {
QByteArray data(32, char(0xEE));
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, false, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xEE", 1);
req.mask = QByteArray("\xFF", 1);
req.constrainRegions = {{100, 200}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
// -- constrainRegions edge cases --
void scan_constrainRegions_gapBetweenRegions() {
// Provider has two regions with a gap: [0,16) and [32,48).
// Constraint spans the gap: [8, 40). Should find matches in both.
QByteArray data(64, 0);
data[10] = char(0xDD);
data[35] = char(0xDD);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, {}});
regions.push_back(MemoryRegion{32, 16, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xDD));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{8, 40}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)10);
QCOMPARE(results[1].address, (uint64_t)35);
}
void scan_constrainRegions_partialRegionOverlap() {
// Provider region [100, 200). Constraint [150, 250) clips to [150, 200).
QByteArray data(256, 0);
data[120] = char(0xAB);
data[160] = char(0xAB);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{100, 100, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xAB));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{150, 250}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)160);
}
void scan_constrainRegions_mixedModuleAndAnonymous() {
// Module region + anonymous heap region. Constraint covers both.
QByteArray data(0x10000, 0);
data[0x1500] = char(0xCC);
data[0x5500] = char(0xCC);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0x1000, 0x1000, true, false, true, QString("game.exe")});
regions.push_back(MemoryRegion{0x5000, 0x1000, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xCC));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{0x0, 0x10000}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)0x1500);
QCOMPARE(results[1].address, (uint64_t)0x5500);
}
void scan_constrainRegions_fallbackProvider() {
// BufferProvider returns no regions -> fallback [0, size).
// constrainRegions should still work against the fallback.
QByteArray data(64, 0);
data[10] = char(0xAA);
data[30] = char(0xAA);
data[50] = char(0xAA);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xAA));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{5, 35}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)10);
QCOMPARE(results[1].address, (uint64_t)30);
}
void scan_constrainRegions_adjacentRegions() {
// Two adjacent regions [0,16) and [16,32). Constraint [8,24) spans both.
QByteArray data(32, 0);
data[12] = char(0xEF);
data[20] = char(0xEF);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, {}});
regions.push_back(MemoryRegion{16, 16, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xEF));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{8, 24}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)12);
QCOMPARE(results[1].address, (uint64_t)20);
}
void scan_constrainRegions_writableFilterPreserved() {
// filterWritable=true should still exclude non-writable clipped regions.
QByteArray data(0x4000, 0);
data[0x1100] = char(0xBB);
data[0x2100] = char(0xBB);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0x1000, 0x1000, true, false, true, {}});
regions.push_back(MemoryRegion{0x2000, 0x1000, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xBB));
req.mask = QByteArray(1, char(0xFF));
req.filterWritable = true;
req.constrainRegions = {{0x1000, 0x3000}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)0x2100);
}
void scan_constrainRegions_constraintExtendsBeforeAndAfter() {
// Region [10, 20). Constraint [0, 30) extends before and after.
// Should only scan [10, 20) — the intersection.
QByteArray data(32, 0);
data[5] = char(0xAA); // outside region, should NOT be found
data[15] = char(0xAA); // inside region, should be found
data[25] = char(0xAA); // outside region, should NOT be found
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{10, 10, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xAA));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{0, 30}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)15);
}
void scan_constrainRegions_emptyConstraintScansAll() {
// Empty constrainRegions should scan everything (no restriction).
QByteArray data(32, 0);
data[5] = char(0xBB);
data[15] = char(0xBB);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 32, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xBB));
req.mask = QByteArray(1, char(0xFF));
// constrainRegions left empty
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
}
void scan_constrainRegions_singleAddressRange() {
// Equivalent to startAddress/endAddress: single constraint range.
QByteArray data(32, 0);
data[8] = char(0xAA);
data[16] = char(0xAA);
data[24] = char(0xAA);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xAA));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{8, 20}}; // same as startAddress=8, endAddress=20
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)8);
QCOMPARE(results[1].address, (uint64_t)16);
}
void scan_constrainRegions_withStartEndAddress() {
// Both constrainRegions and startAddress/endAddress set.
// constrainRegions: [0, 16) and [24, 32). startAddress/endAddress: [8, 28).
// Effective scan should be intersection of both: [8, 16) and [24, 28).
// Match at 4 (outside both), 12 (in both), 20 (in startEnd but not constrain),
// 26 (in both), 30 (in constrain but not startEnd).
QByteArray data(32, 0);
data[4] = char(0xDD);
data[12] = char(0xDD);
data[20] = char(0xDD);
data[26] = char(0xDD);
data[30] = char(0xDD);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xDD));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{0, 16}, {24, 32}};
req.startAddress = 8;
req.endAddress = 28;
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2); // only 12 and 26
QCOMPARE(results[0].address, (uint64_t)12);
QCOMPARE(results[1].address, (uint64_t)26);
}
void scan_constrainRegions_unknownValueScan() {
// Unknown value scan with constrainRegions should only capture within ranges.
QByteArray data(32, char(0x42));
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.condition = ScanCondition::UnknownValue;
req.valueSize = 4;
req.alignment = 4;
req.constrainRegions = {{8, 24}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
// Range [8, 24) = 16 bytes, alignment 4, valueSize 4 -> offsets 8, 12, 16, 20 = 4 results
QCOMPARE(results.size(), 4);
QCOMPARE(results[0].address, (uint64_t)8);
QCOMPARE(results[3].address, (uint64_t)20);
}
void scan_constrainRegions_nonZeroBase() {
// Region with non-zero base; constraint matches exactly.
QByteArray data(0x10000, 0);
data[0x8100] = char(0xFF);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0x8000, 0x1000, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xFF));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{0x8000, 0x9000}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)0x8100);
}
void scan_constrainRegions_zeroSizeConstraint() {
// Degenerate: constraint with start == end (zero size). Should scan nothing.
QByteArray data(32, char(0xAA));
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xAA));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{10, 10}}; // zero-size
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_constrainRegions_invertedRange() {
// Degenerate: constraint with start > end. Should be treated as empty/invalid.
QByteArray data(32, char(0xAA));
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xAA));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{20, 10}}; // inverted
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_constrainRegions_overlappingConstraints() {
// Two overlapping constraints: [4, 20) and [12, 28).
// Should NOT double-count matches in the overlap [12, 20).
QByteArray data(32, 0);
data[8] = char(0xCC);
data[16] = char(0xCC);
data[24] = char(0xCC);
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xCC));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{4, 20}, {12, 28}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
// After merge: [4, 28). All three matches are in range, no duplicates.
QCOMPARE(results.size(), 3);
}
void scan_constrainRegions_patternAtFirstByte() {
// Pattern at the very first byte of a clipped sub-region.
// Region [0, 64). Constraint [20, 40). Match at offset 20.
QByteArray data(64, 0);
data[20] = char(0xFE);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 64, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0xFE));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{20, 40}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)20);
}
void scan_constrainRegions_patternAtLastByte() {
// Pattern at the very last valid position of a clipped sub-region.
// Region [0, 64). Constraint [20, 40). 4-byte pattern at offset 36 (last valid: 40-4=36).
QByteArray data(64, 0);
data[36] = char(0xDE); data[37] = char(0xAD); data[38] = char(0xBE); data[39] = char(0xEF);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 64, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xDE\xAD\xBE\xEF", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
req.constrainRegions = {{20, 40}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)36);
}
void scan_constrainRegions_patternOneByteAfterEnd() {
// Pattern starts 1 byte before constraint end — only 3 of 4 bytes are in range.
// Should NOT match because the full pattern doesn't fit.
// Region [0, 64). Constraint [20, 39). 4-byte pattern at offset 36 (needs 36..39, but 39 is excluded).
QByteArray data(64, 0);
data[36] = char(0xDE); data[37] = char(0xAD); data[38] = char(0xBE); data[39] = char(0xEF);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 64, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xDE\xAD\xBE\xEF", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
req.constrainRegions = {{20, 39}}; // ends at 39, pattern needs 36..39 inclusive
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0); // pattern doesn't fit
}
void scan_constrainRegions_regionSmallerThanPattern() {
// Clipped sub-region is smaller than the pattern. Should scan nothing, not crash.
// Region [0, 64). Constraint [30, 32). 4-byte pattern can't fit in 2 bytes.
QByteArray data(64, char(0xAA));
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 64, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA\xAA\xAA\xAA", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
req.constrainRegions = {{30, 32}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
void scan_constrainRegions_patternExactlyFitsRegion() {
// Clipped sub-region is exactly pattern size. Should find match if bytes match.
// Region [0, 64). Constraint [30, 34). 4-byte pattern, 4-byte region.
QByteArray data(64, 0);
data[30] = char(0x11); data[31] = char(0x22); data[32] = char(0x33); data[33] = char(0x44);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 64, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\x11\x22\x33\x44", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
req.constrainRegions = {{30, 34}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 1);
QCOMPARE(results[0].address, (uint64_t)30);
}
void scan_constrainRegions_matchAtRegionBoundaries() {
// Two adjacent clipped sub-regions. Matches at the last byte of the first
// and first byte of the second. Both should be found.
// Regions: [0, 16) and [16, 32). Constraint [0, 32) (full coverage).
QByteArray data(32, 0);
data[15] = char(0x77); // last byte of first region
data[16] = char(0x77); // first byte of second region
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 16, true, true, false, {}});
regions.push_back(MemoryRegion{16, 16, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray(1, char(0x77));
req.mask = QByteArray(1, char(0xFF));
req.constrainRegions = {{0, 32}};
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 2);
QCOMPARE(results[0].address, (uint64_t)15);
QCOMPARE(results[1].address, (uint64_t)16);
}
void scan_constrainRegions_multibyteAtClipBoundary() {
// 4-byte pattern that straddles the constraint boundary — should NOT be found
// because the clipped region doesn't contain the full pattern.
// Region [0, 64). Constraint [10, 13). Pattern at offset 10 is 4 bytes (10..13),
// but constraint end is 13 (exclusive), so only 3 bytes [10,13) are in range.
QByteArray data(64, 0);
data[10] = char(0xAA); data[11] = char(0xBB); data[12] = char(0xCC); data[13] = char(0xDD);
QVector<MemoryRegion> regions;
regions.push_back(MemoryRegion{0, 64, true, true, false, {}});
auto prov = std::make_shared<RegionProvider>(data, regions);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = QByteArray("\xAA\xBB\xCC\xDD", 4);
req.mask = QByteArray("\xFF\xFF\xFF\xFF", 4);
req.constrainRegions = {{10, 13}}; // only 3 bytes, pattern needs 4
engine.start(prov, req);
QVERIFY(finSpy.wait(5000));
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QCOMPARE(results.size(), 0);
}
// ── Value type + pattern scans at every position in a constrained region ──
// Helper: run a scan with the given pattern/mask/alignment in a constrained region,
// return the result addresses.
QVector<uint64_t> scanConstrained(const QByteArray& data,
const QByteArray& pat, const QByteArray& mask,
int alignment, uint64_t cStart, uint64_t cEnd) {
auto prov = std::make_shared<BufferProvider>(data);
ScanEngine engine;
QSignalSpy finSpy(&engine, &ScanEngine::finished);
ScanRequest req;
req.pattern = pat;
req.mask = mask;
req.alignment = alignment;
req.constrainRegions = {{cStart, cEnd}};
engine.start(prov, req);
if (!finSpy.wait(5000)) return {};
auto results = finSpy.first().first().value<QVector<ScanResult>>();
QVector<uint64_t> addrs;
for (const auto& r : results) addrs.append(r.address);
return addrs;
}
void scan_int32_atRegionStart() {
QByteArray data(128, 0);
int32_t v = 0x12345678;
std::memcpy(data.data() + 32, &v, 4);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int32, "305419896", pat, mask)); // 0x12345678
auto addrs = scanConstrained(data, pat, mask, 4, 32, 96);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)32);
}
void scan_int32_atRegionEnd() {
QByteArray data(128, 0);
int32_t v = 0x12345678;
// Last aligned 4-byte position in [32, 96) is 92
std::memcpy(data.data() + 92, &v, 4);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int32, "305419896", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 4, 32, 96);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)92);
}
void scan_float_atRegionStart() {
QByteArray data(128, 0);
float v = 3.14f;
std::memcpy(data.data() + 16, &v, 4);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Float, "3.14", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 4, 16, 80);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)16);
}
void scan_float_atRegionEnd() {
QByteArray data(128, 0);
float v = 3.14f;
// Last aligned 4-byte position in [16, 80) is 76
std::memcpy(data.data() + 76, &v, 4);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Float, "3.14", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 4, 16, 80);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)76);
}
void scan_double_atRegionEnd() {
QByteArray data(128, 0);
double v = 2.71828;
// Last aligned 8-byte position in [0, 128) is 120
std::memcpy(data.data() + 120, &v, 8);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Double, "2.71828", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 8, 0, 128);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)120);
}
void scan_int64_atRegionEnd() {
QByteArray data(128, 0);
int64_t v = 0x0BADC0DEDEADBEEFLL;
// Last aligned 8-byte position in [8, 72) is 64
std::memcpy(data.data() + 64, &v, 8);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int64, "841540768839352047", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 8, 8, 72);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)64);
}
void scan_utf16_atRegionEnd() {
QByteArray data(128, 0);
// "AB" in UTF-16LE = 4 bytes
uint16_t chars[] = { 'A', 'B' };
// Last aligned 2-byte position where 4 bytes fit in [0, 128) is 124
std::memcpy(data.data() + 124, chars, 4);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UTF16, "AB", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 2, 0, 128);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)124);
}
void scan_vec3_atRegionEnd() {
QByteArray data(128, 0);
float v[] = { 1.0f, 2.0f, 3.0f }; // 12 bytes
// Last aligned 4-byte position where 12 bytes fit in [0, 128) is 116
std::memcpy(data.data() + 116, v, 12);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Vec3, "1.0 2.0 3.0", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 4, 0, 128);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)116);
}
void scan_pattern_atRegionStart() {
QByteArray data(128, 0);
data[20] = char(0x48); data[21] = char(0x8B); data[22] = char(0x05);
QByteArray pat, mask;
QVERIFY(parseSignature("48 8B 05", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 1, 20, 100);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)20);
}
void scan_pattern_atRegionEnd() {
QByteArray data(128, 0);
// 3-byte pattern, last position in [20, 100) is 97
data[97] = char(0x48); data[98] = char(0x8B); data[99] = char(0x05);
QByteArray pat, mask;
QVERIFY(parseSignature("48 8B 05", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 1, 20, 100);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)97);
}
void scan_pattern_withWildcard_atRegionEnd() {
QByteArray data(128, 0);
// "48 ?? 05" at last position 97 in [20, 100)
data[97] = char(0x48); data[98] = char(0xFF); data[99] = char(0x05);
QByteArray pat, mask;
QVERIFY(parseSignature("48 ?? 05", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 1, 20, 100);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)97);
}
void scan_int32_multiplePositions_inConstrainedRegion() {
// Place int32 at first, middle, and last aligned positions in [32, 96).
// Aligned positions: 32, 36, 40, ..., 88, 92. First=32, last=92, mid=60.
QByteArray data(128, 0);
int32_t v = 0xCAFEBABE;
std::memcpy(data.data() + 32, &v, 4);
std::memcpy(data.data() + 60, &v, 4);
std::memcpy(data.data() + 92, &v, 4);
// Also place one outside the constraint to verify it's excluded
std::memcpy(data.data() + 8, &v, 4);
std::memcpy(data.data() + 100, &v, 4);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt32, "0xCAFEBABE", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 4, 32, 96);
QCOMPARE(addrs.size(), 3);
QCOMPARE(addrs[0], (uint64_t)32);
QCOMPARE(addrs[1], (uint64_t)60);
QCOMPARE(addrs[2], (uint64_t)92);
}
void scan_pattern_multiplePositions_inConstrainedRegion() {
// IDA-style pattern at first, last, and middle of [16, 80).
// Pattern "AA BB" (2 bytes), alignment 1. First=16, last=78, mid=50.
QByteArray data(128, 0);
data[16] = char(0xAA); data[17] = char(0xBB);
data[50] = char(0xAA); data[51] = char(0xBB);
data[78] = char(0xAA); data[79] = char(0xBB);
// Outside constraint
data[10] = char(0xAA); data[11] = char(0xBB);
data[90] = char(0xAA); data[91] = char(0xBB);
QByteArray pat, mask;
QVERIFY(parseSignature("AA BB", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 1, 16, 80);
QCOMPARE(addrs.size(), 3);
QCOMPARE(addrs[0], (uint64_t)16);
QCOMPARE(addrs[1], (uint64_t)50);
QCOMPARE(addrs[2], (uint64_t)78);
}
void scan_int8_alignment1_atRegionEnd() {
// 1-byte value at last byte of constrained region [10, 50).
QByteArray data(64, 0);
data[49] = char(0x7F);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Int8, "127", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 1, 10, 50);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)49);
}
void scan_uint16_alignment2_atRegionEnd() {
// 2-byte value at last aligned-2 position in [10, 50) = offset 48.
QByteArray data(64, 0);
uint16_t v = 0xBEEF;
std::memcpy(data.data() + 48, &v, 2);
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt16, "0xBEEF", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 2, 10, 50);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)48);
}
void scan_alignment4_skipsUnaligned() {
// int32 placed at unaligned offset 18 inside [16, 48). Alignment 4.
// Aligned positions from 16: 16, 20, 24, 28, 32, 36, 40, 44.
// Offset 18 is not aligned to 4 from the region start, so should be skipped.
QByteArray data(64, 0);
int32_t v = 0xDEADBEEF;
std::memcpy(data.data() + 18, &v, 4); // unaligned
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UInt32, "0xDEADBEEF", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 4, 16, 48);
QCOMPARE(addrs.size(), 0);
}
void scan_alignment8_skipsUnaligned() {
// double placed at offset 12 inside [0, 64). Alignment 8.
// Aligned positions: 0, 8, 16, 24, 32, 40, 48, 56.
// Offset 12 is not 8-aligned, so should be skipped.
QByteArray data(64, 0);
double v = 99.99;
std::memcpy(data.data() + 12, &v, 8); // unaligned
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::Double, "99.99", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 8, 0, 64);
QCOMPARE(addrs.size(), 0);
}
void scan_alignment2_findsAligned_skipsUnaligned() {
// utf16 "Hi" (4 bytes) at aligned offset 20 and unaligned offset 33.
// Constraint [16, 48), alignment 2. Should find only offset 20.
QByteArray data(64, 0);
uint16_t chars[] = { 'H', 'i' };
std::memcpy(data.data() + 20, chars, 4); // aligned to 2
std::memcpy(data.data() + 33, chars, 4); // unaligned to 2
QByteArray pat, mask;
QVERIFY(serializeValue(ValueType::UTF16, "Hi", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 2, 16, 48);
QCOMPARE(addrs.size(), 1);
QCOMPARE(addrs[0], (uint64_t)20);
}
void scan_alignment1_overlappingWrites() {
// Pattern "AA BB" written at 20, then overwritten at 21, plus 25.
// Second write clobbers offset 20's pattern; only 21 and 25 match.
QByteArray data(48, 0);
data[20] = char(0xAA); data[21] = char(0xBB);
data[21] = char(0xAA); data[22] = char(0xBB); // overlapping at 21
data[25] = char(0xAA); data[26] = char(0xBB);
QByteArray pat, mask;
QVERIFY(parseSignature("AA BB", pat, mask));
auto addrs = scanConstrained(data, pat, mask, 1, 16, 32);
QCOMPARE(addrs.size(), 2); // 21 and 25 (20 was overwritten)
QCOMPARE(addrs[0], (uint64_t)21);
QCOMPARE(addrs[1], (uint64_t)25);
}
};
QTEST_MAIN(TestScanner)
#include "test_scanner.moc"