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Merge #1473's format document; describe format 4

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QETZ-FORMAT.md now describes format 4: the computed text left out of the
folio files, QElectroTech's own database built on opening rather than
stored, the tables written without keys, and format 3 among those read.

Tables written without keys keep their declared column types (INTEGER
was written as INT); tst_qetcontainer checks the columns and types
against the document, and that the file has no keys.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ispyisail
2026-10-14 11:34:52 +13:00
parent a9ed99293e f65b24250c
commit bf465f9245
5 changed files with 265 additions and 2 deletions
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tests/qttest/tst_qetcontainer.cpp
+47
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@@ -436,6 +436,53 @@ private slots:
QVERIFY2(query(database, sql) == QLatin1String("0"), sql);
}
// The schema in QETZ-FORMAT.md is the one written: same tables, same
// columns in the same order, same types; written without keys (format 4)
void specMatchesSchema()
{
const QString spec = QString::fromUtf8(read(QStringLiteral(QET_FORMAT_SPEC)));
const int from = spec.indexOf(QStringLiteral("```sql\n"));
const int to = spec.indexOf(QStringLiteral("```"), from + 7);
QVERIFY2(from >= 0 && to > from, "no schema in QETZ-FORMAT.md");
const QByteArray sql = spec.mid(from + 7, to - from - 7).toUtf8();
QDomDocument original;
const QList<QetZip::Entry> entries = splitFile(QStringLiteral(QET_EXAMPLES_DIR "/industrial.qet"), &original);
const QByteArray written = entry(entries, QStringLiteral("project.sqlite"));
auto describe = [](sqlite3 *db, const char *columns = "m.name, p.name, p.type") {
QStringList out;
sqlite3_stmt *st = nullptr;
sqlite3_prepare_v2(db, QByteArray("SELECT ") + columns + " FROM sqlite_master m, "
"pragma_table_info(m.name) p WHERE m.type = 'table' ORDER BY m.name, p.cid",
-1, &st, nullptr);
while (st && sqlite3_step(st) == SQLITE_ROW) {
QStringList row;
for (int i = 0 ; i < sqlite3_column_count(st) ; ++i)
row << QString::fromUtf8(reinterpret_cast<const char *>(sqlite3_column_text(st, i)));
out << row.join(QLatin1Char(' '));
}
sqlite3_finalize(st);
return out;
};
sqlite3 *from_spec = nullptr;
sqlite3_open(":memory:", &from_spec);
QCOMPARE(sqlite3_exec(from_spec, sql.constData(), nullptr, nullptr, nullptr), SQLITE_OK);
sqlite3 *from_file = nullptr;
sqlite3_open(":memory:", &from_file);
unsigned char *copy = static_cast<unsigned char *>(sqlite3_malloc64(sqlite3_uint64(written.size())));
memcpy(copy, written.constData(), size_t(written.size()));
sqlite3_deserialize(from_file, "main", copy, written.size(), written.size(), SQLITE_DESERIALIZE_FREEONCLOSE);
const QStringList spec_tables = describe(from_spec), file_tables = describe(from_file);
const QStringList keys = describe(from_file, "p.pk + p.\"notnull\"");
QVERIFY(!keys.isEmpty());
QCOMPARE(keys.count(QStringLiteral("0")), keys.size());
sqlite3_close(from_spec);
sqlite3_close(from_file);
QVERIFY(!spec_tables.isEmpty());
QCOMPARE(spec_tables, file_tables);
}
void laterFormatRefused()
{
QDomDocument original;