Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Z/src/nglcompression/nglcomp_test.h

@@ -0,0 +1,36 @@
+
+
+#pragma once
+
+#include <QByteArray>
+#include <QHash>
+#include <QObject>
+#include <QTemporaryDir>
+#include <QTemporaryFile>
+
+class nglcomp_test : public QObject
+{
+  Q_OBJECT
+
+public:
+  nglcomp_test() = default;
+
+private Q_SLOTS:
+  void initTestCase();
+  void testCompressFile();
+  void testCompressMemory();
+  void testUncompressFile();
+  void testUncompressMemory();
+  void cleanupTestCase();
+private:
+  void writeTestFile(const QString &fn, const QByteArray &content) const;
+  void checkContent(const QString &fn, const QByteArray &content) const;
+  QString subPathIn(const QString &p) const;
+  QString subPathOut(const QString &p) const;
+private:
+  QHash<QString, QByteArray> m_fileContent;
+  QByteArray m_ba;
+  QTemporaryFile m_tf;
+  QTemporaryDir m_tempDirIn;
+  QTemporaryDir m_tempDirOut;
+};