1 files changed, 77 insertions, 0 deletions
diff --git a/meshmc/launcher/minecraft/MojangVersionFormat_test.cpp b/meshmc/launcher/minecraft/MojangVersionFormat_test.cpp
new file mode 100644
index 0000000000..ba506778a2
--- /dev/null
+++ b/meshmc/launcher/minecraft/MojangVersionFormat_test.cpp
@@ -0,0 +1,77 @@
+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   Copyright (C) 2026 Project Tick
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QTest>
+#include <QDebug>
+#include "TestUtil.h"
+
+#include "minecraft/MojangVersionFormat.h"
+
+class MojangVersionFormatTest : public QObject
+{
+	Q_OBJECT
+
+	static QJsonDocument readJson(const char* file)
+	{
+		auto path = QFINDTESTDATA(file);
+		QFile jsonFile(path);
+		if (!jsonFile.open(QIODevice::ReadOnly))
+			return QJsonDocument();
+		auto data = jsonFile.readAll();
+		jsonFile.close();
+		return QJsonDocument::fromJson(data);
+	}
+	static void writeJson(const char* file, QJsonDocument doc)
+	{
+		QFile jsonFile(file);
+		if (!jsonFile.open(QIODevice::WriteOnly | QIODevice::Text))
+			return;
+		auto data = doc.toJson(QJsonDocument::Indented);
+		qDebug() << QString::fromUtf8(data);
+		jsonFile.write(data);
+		jsonFile.close();
+	}
+
+  private slots:
+	void test_Through_Simple()
+	{
+		QJsonDocument doc = readJson("data/1.9-simple.json");
+		auto vfile =
+			MojangVersionFormat::versionFileFromJson(doc, "1.9-simple.json");
+		auto doc2 = MojangVersionFormat::versionFileToJson(vfile);
+		writeJson("1.9-simple-passthorugh.json", doc2);
+
+		QCOMPARE(doc.toJson(), doc2.toJson());
+	}
+
+	void test_Through()
+	{
+		QJsonDocument doc = readJson("data/1.9.json");
+		auto vfile = MojangVersionFormat::versionFileFromJson(doc, "1.9.json");
+		auto doc2 = MojangVersionFormat::versionFileToJson(vfile);
+		writeJson("1.9-passthorugh.json", doc2);
+		QCOMPARE(doc.toJson(), doc2.toJson());
+	}
+};
+
+QTEST_GUILESS_MAIN(MojangVersionFormatTest)
+
+#include "MojangVersionFormat_test.moc"