1 files changed, 46 insertions, 0 deletions
diff --git a/Tests/RunCMake/FetchContent/DirOverrides.cmake b/Tests/RunCMake/FetchContent/DirOverrides.cmake
new file mode 100644
index 000000000..50eef161b
--- /dev/null
+++ b/Tests/RunCMake/FetchContent/DirOverrides.cmake
@@ -0,0 +1,46 @@
+include(FetchContent)
+
+# Test using saved details
+FetchContent_Declare(
+  t1
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/savedSrc
+  DOWNLOAD_COMMAND ${CMAKE_COMMAND} -E make_directory <SOURCE_DIR>
+)
+FetchContent_Populate(t1)
+if(NOT IS_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/savedSrc)
+  message(FATAL_ERROR "Saved details SOURCE_DIR override failed")
+endif()
+
+# Test direct population
+FetchContent_Populate(
+  t2
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/directSrc
+  DOWNLOAD_COMMAND ${CMAKE_COMMAND} -E make_directory <SOURCE_DIR>
+)
+if(NOT IS_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/directSrc)
+  message(FATAL_ERROR "Direct details SOURCE_DIR override failed")
+endif()
+
+# Ensure setting BINARY_DIR to SOURCE_DIR works (a technique to
+# prevent an unwanted separate BINARY_DIR from being created, which
+# ExternalProject_Add() does whether we like it or not)
+FetchContent_Declare(
+  t3
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/savedNoBuildDir
+  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/savedNoBuildDir
+  DOWNLOAD_COMMAND ${CMAKE_COMMAND} -E make_directory <SOURCE_DIR>
+)
+FetchContent_Populate(t3)
+if(IS_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/savedNobuildDir-build)
+  message(FATAL_ERROR "Saved details BINARY_DIR override failed")
+endif()
+
+FetchContent_Populate(
+  t4
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/directNoBuildDir
+  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/directNoBuildDir
+  DOWNLOAD_COMMAND ${CMAKE_COMMAND} -E make_directory <SOURCE_DIR>
+)
+if(IS_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/savedNobuildDir-build)
+  message(FATAL_ERROR "Direct details BINARY_DIR override failed")
+endif()