Method testWriteCdf

tests/test1/main.cpp:337–380

------------------------------------------------------------------ Test 5: write CDF file to a new path (round-trip serialization) ------------------------------------------------------------------

	// Test 5: write CDF file to a new path (round-trip serialization)
	// ------------------------------------------------------------------
	void testWriteCdf() {
		Settings settings;
		// Do not call loadSettings() in tests

		Contest *contest = loadContest(m_contestDir, &settings, this);
		QVERIFY2(contest != nullptr, "Failed to load TestContest1.cdf");

		// Serialize to a temp file
		QTemporaryDir outDir;
		QVERIFY(outDir.isValid());
		const QString outPath = outDir.path() + "/out.cdf";

		QFile outFile(outPath);
		QVERIFY2(outFile.open(QFile::WriteOnly), "Cannot open output CDF file for writing");

		QJsonObject outObj;
		contest->writeToJson(outObj);
		outFile.write(QJsonDocument(outObj).toJson(QJsonDocument::Compact));
		outFile.close();

		// Re-read the written CDF
		QFile inFile(outPath);
		QVERIFY2(inFile.open(QFile::ReadOnly), "Cannot open output CDF file for reading");
		QJsonParseError parseError;
		QJsonObject inObj = QJsonDocument::fromJson(inFile.readAll(), &parseError).object();
		QVERIFY2(parseError.error == QJsonParseError::NoError,
		         qPrintable("JSON parse error: " + parseError.errorString()));

		// Load into a fresh Contest and verify round-trip
		auto *contest2 = new Contest(this);
		contest2->setSettings(&settings);
		QVERIFY2(contest2->readFromJson(inObj) == 0, "Re-reading written CDF failed");

		QCOMPARE(contest2->getContestTitle(), contest->getContestTitle());
		QCOMPARE(contest2->getTaskList().size(), contest->getTaskList().size());
		QCOMPARE(contest2->getContestantList().size(), contest->getContestantList().size());

		for (int i = 0; i < contest->getTaskList().size(); i++) {
			QCOMPARE(contest2->getTask(i)->getProblemTitle(), contest->getTask(i)->getProblemTitle());
		}

		delete contest;
		delete contest2;
	}
};

QTEST_GUILESS_MAIN(TestContest)