fix: NetworkMonitor virtual sorting

fixes: #9459
make NetworkMonitor::isVirtualInterface a static member of NetworkMonitor
write tests for NetworkMonitor

src/lib/gui/core/NetworkMonitor.cpp

@@ -9,31 +9,20 @@
 #include <QAbstractSocket>
 #include <QList>
 #include <QNetworkInterface>
+#include <QRegularExpression>
 #include <QSet>
 #include <QTimer>
 
 namespace deskflow::gui {
 
-bool NetworkMonitor::isVirtualInterface(const QString &interfaceName) const
+bool NetworkMonitor::isVirtualInterface(const QString &interfaceName)
 {
   // Common virtual network interface patterns
-  static const QStringList virtualPatterns = {
+  static const auto virtualRegEx = QRegularExpression(
-      QStringLiteral("vboxnet"), // VirtualBox host-only networks
+      QStringLiteral("^vboxnet|vmnet|docker|virbr|veth|br\\-|tun|utun|awdl|p2p|llw|anpi|tap"),
-      QStringLiteral("vmnet"),   // VMware virtual networks
+      QRegularExpression::CaseInsensitiveOption
-      QStringLiteral("docker"),  // Docker bridge networks
+  );
-      QStringLiteral("virbr"),   // libvirt bridge networks
+  return virtualRegEx.match(interfaceName).hasMatch();
-      QStringLiteral("veth"),    // Virtual ethernet
-      QStringLiteral("br-"),     // Bridge interfaces (some are virtual)
-      QStringLiteral("tun"),     // Tunnel interfaces
-      QStringLiteral("tap"),     // TAP interfaces
-      QStringLiteral("utun"),    // User tunnel (macOS)
-      QStringLiteral("awdl"),    // Apple Wireless Direct Link
-      QStringLiteral("p2p"),     // Peer-to-peer
-      QStringLiteral("llw"),     // Link-local wireless
-      QStringLiteral("anpi"),    // Apple network interface
-  };
-
-  return virtualPatterns.contains(interfaceName, Qt::CaseInsensitive);
 }
 
 NetworkMonitor::NetworkMonitor(QObject *parent) : QObject(parent), m_checkTimer(new QTimer(this))

src/lib/gui/core/NetworkMonitor.h

@@ -52,6 +52,13 @@ public:
    */
   QStringList getAvailableIPv4Addresses() const;
 
+  /**
+   * @brief Check if a network interface is virtual
+   * @param interfaceName Network interface name
+   * @return true if it's a virtual interface
+   */
+  static bool isVirtualInterface(const QString &interfaceName);
+
 Q_SIGNALS:
   /**
    * @brief Emitted when IP addresses change
@@ -62,13 +69,6 @@ Q_SIGNALS:
 private:
   void setIpAddresses(const QStringList &newAddresses);
 
-  /**
-   * @brief Check if a network interface is virtual
-   * @param interfaceName Network interface name
-   * @return true if it's a virtual interface
-   */
-  bool isVirtualInterface(const QString &interfaceName) const;
-
   /**
    * @brief Update current network status
    */

src/unittests/gui/core/CMakeLists.txt

@@ -14,3 +14,12 @@ create_test(
   SOURCE ServerConnectionTests.cpp
   WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/src/lib/gui"
 )
+
+
+create_test(
+  NAME NetworkMonitorTests
+  DEPENDS gui
+  SOURCE NetworkMonitorTests.cpp
+  WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/src/lib/gui"
+)
+

src/unittests/gui/core/NetworkMonitorTests.cpp

@@ -0,0 +1,36 @@
+/*
+ * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2026 Chris Rizzitello <sithlord48@gmail.com>
+ * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
+ */
+
+#include "NetworkMonitorTests.h"
+
+#include "gui/core/NetworkMonitor.h"
+
+#include <QSignalSpy>
+
+using namespace deskflow::gui;
+void NetworkMonitorTests::testVirtualInterface()
+{
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("vboxnet0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("vboXnet0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("vmnet0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("docker-bridge")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("virbr0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("veth0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("br-0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("tun0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("utun0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("awdl0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("p2p0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("llw0")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("anpi5")));
+  QVERIFY(NetworkMonitor::isVirtualInterface(QStringLiteral("tap1")));
+
+  QVERIFY(!NetworkMonitor::isVirtualInterface(QStringLiteral("eth0")));
+  QVERIFY(!NetworkMonitor::isVirtualInterface(QStringLiteral("enp0s0f")));
+  QVERIFY(!NetworkMonitor::isVirtualInterface(QStringLiteral("wifi")));
+  QVERIFY(!NetworkMonitor::isVirtualInterface(QStringLiteral("wlan0")));
+}
+QTEST_MAIN(NetworkMonitorTests)

src/unittests/gui/core/NetworkMonitorTests.h

@@ -0,0 +1,15 @@
+/*
+ * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2026 Chris Rizzitello <sithlord48@gmail.com>
+ * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
+ */
+
+#include <QTest>
+
+class NetworkMonitorTests : public QObject
+{
+  Q_OBJECT
+private Q_SLOTS:
+  // Test are run in order top to bottom
+  void testVirtualInterface();
+};