It's autotests not tests

Test Plan: compile

Reviewers: hein, davidedmundson

Reviewed By: davidedmundson

Subscribers: plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D8553

containments/desktop/plugins/folder/CMakeLists.txt

@@ -42,5 +42,5 @@ install(TARGETS folderplugin DESTINATION ${QML_INSTALL_DIR}/org/kde/private/desk
 generate_export_header(folderplugin BASE_NAME folderplugin)
 
 if(BUILD_TESTING)
-    add_subdirectory(tests)
+    add_subdirectory(autotests)
 endif(BUILD_TESTING)