1 files changed, 100 insertions, 0 deletions
diff --git a/archived/projt-launcher/tests/NetUtils_test.cpp b/archived/projt-launcher/tests/NetUtils_test.cpp
new file mode 100644
index 0000000000..2bbbbc9167
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+++ b/archived/projt-launcher/tests/NetUtils_test.cpp
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-FileCopyrightText: 2026 Project Tick
+// SPDX-FileContributor: Project Tick Team
+/*
+ *  ProjT Launcher - Minecraft Launcher
+ *  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, version 3.
+ *
+ *  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, write to the Free Software Foundation,
+ *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <QCryptographicHash>
+#include <QNetworkReply>
+#include <QNetworkRequest>
+#include <QTest>
+
+#include <net/ChecksumValidator.h>
+#include <net/NetUtils.h>
+
+class DummyReply : public QNetworkReply
+{
+	Q_OBJECT
+
+  public:
+	explicit DummyReply(QObject* parent = nullptr) : QNetworkReply(parent)
+	{
+		setUrl(QUrl("https://example.com/"));
+		open(QIODevice::ReadOnly);
+		setFinished(true);
+		setError(QNetworkReply::NoError, {});
+	}
+
+	void abort() override {}
+
+  protected:
+	qint64 readData(char*, qint64) override { return -1; }
+};
+
+class NetUtilsTest : public QObject
+{
+	Q_OBJECT
+
+  private slots:
+	void test_isApplicationError()
+	{
+		QVERIFY(Net::isApplicationError(QNetworkReply::ContentNotFoundError));
+		QVERIFY(Net::isApplicationError(QNetworkReply::AuthenticationRequiredError));
+		QVERIFY(Net::isApplicationError(QNetworkReply::InternalServerError));
+
+		QVERIFY(!Net::isApplicationError(QNetworkReply::NoError));
+		QVERIFY(!Net::isApplicationError(QNetworkReply::ConnectionRefusedError));
+		QVERIFY(!Net::isApplicationError(QNetworkReply::TimeoutError));
+	}
+
+	void test_checksumValidator_matches()
+	{
+		QCryptographicHash hash(QCryptographicHash::Sha256);
+		hash.addData(QByteArrayView("hello", 5));
+		const QByteArray expected = hash.result();
+
+		Net::ChecksumValidator validator(QCryptographicHash::Sha256, expected);
+		QNetworkRequest request;
+		QVERIFY(validator.init(request));
+		QByteArray data("hello");
+		QVERIFY(validator.write(data));
+
+		DummyReply reply;
+		QVERIFY(validator.validate(reply));
+	}
+
+	void test_checksumValidator_mismatch()
+	{
+		QCryptographicHash hash(QCryptographicHash::Sha256);
+		hash.addData(QByteArrayView("world", 5));
+		const QByteArray expected = hash.result();
+
+		Net::ChecksumValidator validator(QCryptographicHash::Sha256, expected);
+		QNetworkRequest request;
+		QVERIFY(validator.init(request));
+		QByteArray data("hello");
+		QVERIFY(validator.write(data));
+
+		DummyReply reply;
+		QVERIFY(!validator.validate(reply));
+	}
+};
+
+QTEST_GUILESS_MAIN(NetUtilsTest)
+
+#include "NetUtils_test.moc"