ensure unit tests use own dummy config

apps/lib/autotests/kate_view_mgmt_tests.cpp

@@ -27,6 +27,9 @@ KateViewManagementTests::KateViewManagementTests(QObject *)
     m_tempdir = new QTemporaryDir;
     QVERIFY(m_tempdir->isValid());
 
+    // ensure we use some dummy config
+    KConfig::setMainConfigName(m_tempdir->path() + QStringLiteral("/testconfigfilerc"));
+
     // create KWrite variant to avoid plugin loading!
     static QCommandLineParser parser;
     app = std::make_unique<KateApp>(parser, KateApp::ApplicationKWrite, m_tempdir->path());