diff --git a/plugins/gdb/unittests/test_gdb.cpp b/plugins/gdb/unittests/test_gdb.cpp
--- a/plugins/gdb/unittests/test_gdb.cpp
+++ b/plugins/gdb/unittests/test_gdb.cpp
@@ -114,26 +114,23 @@
     explicit TestLaunchConfiguration(const QUrl& executable = findExecutable(QStringLiteral("debuggee_debugee")),
                             const QUrl& workingDirectory = QUrl()) {
         qDebug() << "FIND" << executable;
-        c = new KConfig();
+        c = KSharedConfig::openConfig();
         c->deleteGroup("launch");
         cfg = c->group("launch");
         cfg.writeEntry("isExecutable", true);
         cfg.writeEntry("Executable", executable);
         cfg.writeEntry("Working Directory", workingDirectory);
     }
-    ~TestLaunchConfiguration() override {
-        delete c;
-    }
     const KConfigGroup config() const override { return cfg; }
     KConfigGroup config() override { return cfg; };
     QString name() const override { return QStringLiteral("Test-Launch"); }
     KDevelop::IProject* project() const override { return nullptr; }
     KDevelop::LaunchConfigurationType* type() const override { return nullptr; }
 
-    KConfig *rootConfig() { return c; }
+    KConfig* rootConfig() { return c.data(); }
 private:
     KConfigGroup cfg;
-    KConfig *c;
+    KSharedConfigPtr c;
 };
 
 class TestFrameStackModel : public GdbFrameStackModel
diff --git a/plugins/lldb/unittests/test_lldb.cpp b/plugins/lldb/unittests/test_lldb.cpp
--- a/plugins/lldb/unittests/test_lldb.cpp
+++ b/plugins/lldb/unittests/test_lldb.cpp
@@ -99,26 +99,23 @@
     explicit TestLaunchConfiguration(const QUrl& executable = findExecutable(QStringLiteral("debuggee_debugee")),
                             const QUrl& workingDirectory = QUrl()) {
         qDebug() << "FIND" << executable;
-        c = new KConfig();
+        c = KSharedConfig::openConfig();
         c->deleteGroup("launch");
         cfg = c->group("launch");
         cfg.writeEntry("isExecutable", true);
         cfg.writeEntry("Executable", executable);
         cfg.writeEntry("Working Directory", workingDirectory);
     }
-    ~TestLaunchConfiguration() override {
-        delete c;
-    }
     const KConfigGroup config() const override { return cfg; }
     KConfigGroup config() override { return cfg; };
     QString name() const override { return QStringLiteral("Test-Launch"); }
     KDevelop::IProject* project() const override { return nullptr; }
     KDevelop::LaunchConfigurationType* type() const override { return nullptr; }
 
-    KConfig *rootConfig() { return c; }
+    KConfig* rootConfig() { return c.data(); }
 private:
     KConfigGroup cfg;
-    KConfig *c;
+    KSharedConfigPtr c;
 };
 
 class TestFrameStackModel : public LldbFrameStackModel
diff --git a/plugins/lldb/unittests/test_lldbformatters.cpp b/plugins/lldb/unittests/test_lldbformatters.cpp
--- a/plugins/lldb/unittests/test_lldbformatters.cpp
+++ b/plugins/lldb/unittests/test_lldbformatters.cpp
@@ -94,26 +94,22 @@
                             const QUrl& workingDirectory = QUrl()) {
         auto execPath = findExecutable(executable);
         qDebug() << "FIND" << execPath;
-        c = new KConfig();
+        c = KSharedConfig::openConfig();
         c->deleteGroup("launch");
         cfg = c->group("launch");
         cfg.writeEntry("isExecutable", true);
         cfg.writeEntry("Executable", execPath);
         cfg.writeEntry("Working Directory", workingDirectory);
     }
-    ~TestLaunchConfiguration() override {
-        delete c;
-    }
     const KConfigGroup config() const override { return cfg; }
     KConfigGroup config() override { return cfg; };
     QString name() const override { return QStringLiteral("Test-Launch"); }
     KDevelop::IProject* project() const override { return nullptr; }
     KDevelop::LaunchConfigurationType* type() const override { return nullptr; }
 
-    KConfig *rootConfig() { return c; }
 private:
     KConfigGroup cfg;
-    KConfig *c;
+    KSharedConfigPtr c;
 };
 
 class TestDebugSession : public DebugSession