diff --git a/tests/blackmisc/testblackmiscmain.cpp b/tests/blackmisc/testblackmiscmain.cpp
index d5f48d410..353d97a5d 100644
--- a/tests/blackmisc/testblackmiscmain.cpp
+++ b/tests/blackmisc/testblackmiscmain.cpp
@@ -12,6 +12,7 @@
 //! \ingroup testblackmisc
 
 #include "testaviation.h"
+#include "testcompress.h"
 #include "testblackmiscmain.h"
 #include "testcontainers.h"
 #include "testdbus.h"
@@ -47,6 +48,10 @@ namespace BlackMiscTest
         BlackMisc::Test::CTest test(argc, argv);
 
         int status = 0;
+        {
+            CTestCompress compressTest;
+            status |= test.exec(&compressTest, "blackmisc_compress");
+        }
         {
             CTestPhysicalQuantities pqBaseTests;
             status |= test.exec(&pqBaseTests, "blackmisc_physicalQuantities");
diff --git a/tests/blackmisc/testcompress.cpp b/tests/blackmisc/testcompress.cpp
new file mode 100644
index 000000000..a0be21b74
--- /dev/null
+++ b/tests/blackmisc/testcompress.cpp
@@ -0,0 +1,64 @@
+/* Copyright (C) 2018
+ * swift Project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \cond PRIVATE_TESTS
+
+/*!
+* \file
+* \ingroup testblackmisc
+*/
+
+#include "testcompress.h"
+#include "blackconfig/buildconfig.h"
+#include "blackmisc/compressutils.h"
+#include "blackmisc/directoryutils.h"
+#include "blackmisc/fileutils.h"
+
+#include <QFileInfo>
+#include <QTemporaryDir>
+#include <QTest>
+
+using namespace BlackMisc;
+using namespace BlackConfig;
+
+namespace BlackMiscTest
+{
+    void CTestCompress::uncompressFile()
+    {
+        QTemporaryDir tempDir;
+        tempDir.setAutoRemove(true);
+        QVERIFY2(tempDir.isValid(), "Invalid directory");
+
+        const bool win = CBuildConfig::isRunningOnWindowsNtPlatform();
+        const bool zip7Exists = CCompressUtils::hasZip7();
+        if (!win && !zip7Exists)
+        {
+            QSKIP("No 7zip, skipping");
+            return;
+        }
+
+        QVERIFY2(zip7Exists, "No 7zip");
+
+        const QString td = tempDir.path();
+        const QString compressedFile(CFileUtils::appendFilePaths(CDirectoryUtils::shareTestDirectory(), "countries.json.gz"));
+        const QString unCompressedFile(CFileUtils::appendFilePaths(td, "countries.json"));
+        const bool c = CCompressUtils::zip7Uncompress(compressedFile, td, true);
+
+        QVERIFY2(c, "Uncompressing failed");
+
+        const QFileInfo check(unCompressedFile);
+        QVERIFY2(check.size() > 1000, "Uncompressing yielded not data");
+        QVERIFY2(check.exists(), "Uncompressed file does not exist");
+        QVERIFY2(check.isReadable(), "Not readable");
+
+        qDebug() << "Uncompressed" << compressedFile << "to" << unCompressedFile << "with size" << check.size();
+    }
+}
+
+//! \endcond
diff --git a/tests/blackmisc/testcompress.h b/tests/blackmisc/testcompress.h
new file mode 100644
index 000000000..e72b24046
--- /dev/null
+++ b/tests/blackmisc/testcompress.h
@@ -0,0 +1,38 @@
+/* Copyright (C) 2016
+ * swift project community / contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#ifndef BLACKMISCTEST_TESTCOMPRESS_H
+#define BLACKMISCTEST_TESTCOMPRESS_H
+
+//! \cond PRIVATE_TESTS
+//! \file
+//! \ingroup testblackmisc
+
+#include <QObject>
+
+namespace BlackMiscTest
+{
+    //! Testing process tools
+    class CTestCompress : public QObject
+    {
+        Q_OBJECT
+
+    public:
+        //! Constructor
+        explicit CTestCompress(QObject *parent = nullptr) : QObject(parent) {}
+
+    private slots:
+        //! Uncompress file
+        void uncompressFile();
+    };
+}
+
+//! \endcond
+
+#endif