Merge topic 'revert-CTestTestfile-removal-again'

70c50aa23c Revert "Remove CTestTestfile.cmake when BUILD_TESTING is OFF"

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1887

Tests/RunCMake/CTest/CTestTestfile.cmake.in

@@ -0,0 +1 @@
+# Created manually

Tests/RunCMake/CTest/NotOn-check.cmake

@@ -0,0 +1,8 @@
+set(f "${RunCMake_TEST_BINARY_DIR}/CTestTestfile.cmake")
+if(NOT EXISTS "${f}")
+  set(RunCMake_TEST_FAILED "File does not exist:\n  ${f}")
+endif()
+file(READ ${f} content)
+if(NOT "${content}" MATCHES "^# Created manually")
+  set(RunCMake_TEST_FAILED "File:\n  ${f}\nhas unexpected content:\n  ${content}")
+endif()

Tests/RunCMake/CTest/NotOn.cmake

@@ -0,0 +1,3 @@
+set(BUILD_TESTING OFF CACHE BOOL "Build the testing tree.")
+include(CTest)
+configure_file(CTestTestfile.cmake.in CTestTestfile.cmake)

Tests/RunCMake/CTest/RunCMakeTest.cmake

@@ -3,3 +3,5 @@ include(RunCMake)
 set(RunCMake_TEST_OPTIONS -DNoProject=1)
 run_cmake(BeforeProject)
 unset(RunCMake_TEST_OPTIONS)
+
+run_cmake(NotOn)