Not necessary to search in each sub folder

CMakeLists.txt

@@ -61,6 +61,7 @@ add_definitions(-DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x055400)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 if(BUILD_TESTING)
+    find_package(Qt5Test CONFIG REQUIRED)
    add_definitions(-DBUILD_TESTING)
 endif(BUILD_TESTING)
 

src/kmailtransport/plugins/tests/CMakeLists.txt

 include(ECMMarkAsTest)
-find_package(Qt5Test CONFIG REQUIRED)
-
 add_executable(transportmanagertest transportmanagertest.cpp)
 ecm_mark_as_test(transportmanagertest)
 target_link_libraries(transportmanagertest KF5MailTransport)

src/kmailtransport/tests/CMakeLists.txt

@@ -2,7 +2,6 @@
 include(ECMMarkAsTest)
 
 find_package(KF5TextWidgets ${KF5_MIN_VERSION} CONFIG REQUIRED)
-find_package(Qt5Test CONFIG REQUIRED)
 
 add_executable(transportmgr transportmgr.cpp)
 ecm_mark_as_test(transportmgr)

src/kmailtransportakonadi/autotests/CMakeLists.txt

-find_package(Qt5Test CONFIG REQUIRED)
 find_package(KF5DBusAddons CONFIG REQUIRED)
 
 # Akonadi testrunner-based tests:

src/kmailtransportakonadi/tests/CMakeLists.txt

@@ -2,7 +2,6 @@
 include(ECMMarkAsTest)
 
 find_package(KF5TextWidgets ${KF5_MIN_VERSION} CONFIG REQUIRED)
-find_package(Qt5Test CONFIG REQUIRED)
 
 set(queuer_srcs queuer.cpp)
 add_executable(queuer ${queuer_srcs})