diff --git a/cmake/modules/BasicConfig.cmake b/cmake/modules/BasicConfig.cmake
index 8ea352e..d2d16b3 100644
--- a/cmake/modules/BasicConfig.cmake
+++ b/cmake/modules/BasicConfig.cmake
@@ -192,7 +192,12 @@ endif()
 if(NOT META_NO_TIDY AND EXISTS "${CLANG_FORMAT_RULES}")
     find_program(CLANG_FORMAT_BIN clang-format)
     if(CLANG_FORMAT_BIN)
-        set(FORMATABLE_FILES ${HEADER_FILES} ${SRC_FILES} ${WIDGETS_HEADER_FILES} ${WIDGETS_SRC_FILES} ${QML_HEADER_FILES} ${QML_SRC_FILES})
+        set(FORMATABLE_FILES
+            ${HEADER_FILES} ${SRC_FILES}
+            ${TEST_HEADER_FILES} ${TEST_SRC_FILES}
+            ${WIDGETS_HEADER_FILES} ${WIDGETS_SRC_FILES}
+            ${QML_HEADER_FILES} ${QML_SRC_FILES}
+        )
         if(FORMATABLE_FILES)
             list(REMOVE_ITEM FORMATABLE_FILES "")