Fix interference from kdeplatformtheme into unittests

kdeplatformtheme would load kdeglobals and the app config file, in order
to load settings, before the unittests get a chance to call
QStandardPaths::setTestModeEnabled(true). As a result, the test would
keep getting references to "wrong" shared config objects, pointing to
the real user's locations rather than the test directories.

This fixes e.g. kconfigdialog_unittest from kconfigwidgets for me
(it only passes on build.kde.org because it doesn't install frameworkintegration
for testing this framework)

REVIEW: 115963

1 files changed, 7 insertions, 0 deletions

diff --git a/src/core/ksharedconfig.cpp b/src/core/ksharedconfig.cpp
index 4f0e8d69..34947065 100644
--- a/src/core/ksharedconfig.cpp
+++ b/src/core/ksharedconfig.cpp
@@ -64,6 +64,13 @@ KSharedConfigPtr KSharedConfig::openConfig(const QString &_fileName,
         fileName = KConfig::mainConfigName();
     }
 
+    static bool wasTestModeEnabled = false;
+    if (!wasTestModeEnabled && QStandardPaths::isTestModeEnabled()) {
+        wasTestModeEnabled = true;
+        list->clear();
+        list->mainConfig = Q_NULLPTR;
+    }
+
     if (list) {
         for (QList<KSharedConfig *>::ConstIterator it = list->constBegin(); it != list->constEnd(); ++it) {
             if ((*it)->name() == fileName &&