Method themeManagerSwitch

tests/test_theme.cpp:107–121

    }

    void themeManagerSwitch() {
        auto& tm = ThemeManager::instance();
        QSignalSpy spy(&tm, &ThemeManager::themeChanged);

        int startIdx = tm.currentIndex();
        int target = (startIdx == 0) ? 1 : 0;
        tm.setCurrent(target);

        QCOMPARE(spy.count(), 1);
        QCOMPARE(tm.currentIndex(), target);
        QCOMPARE(tm.current().name, tm.themes()[target].name);

        // Restore
        tm.setCurrent(startIdx);
    }

    void themeManagerCRUD() {
        auto& tm = ThemeManager::instance();