diff --git a/CMake/Googletest/DownloadGTest.cmake b/CMake/Googletest/DownloadGTest.cmake
new file mode 100644
index 0000000..3c682ae
--- /dev/null
+++ b/CMake/Googletest/DownloadGTest.cmake
@@ -0,0 +1,32 @@
+# Downloads and unpacks googletest at configure time.  Based on the instructions
+# at https://github.com/google/googletest/tree/master/googletest#incorporating-into-an-existing-cmake-project
+
+# Download the latest googletest from Github master
+configure_file(
+  ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in
+  ${CMAKE_BINARY_DIR}/googletest-download/CMakeLists.txt
+)
+
+# Configure and build the downloaded googletest source
+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+  RESULT_VARIABLE result
+  WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
+if(result)
+  message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+endif()
+
+execute_process(COMMAND ${CMAKE_COMMAND} --build .
+  RESULT_VARIABLE result
+  WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
+if(result)
+  message(FATAL_ERROR "Build step for googletest failed: ${result}")
+endif()
+
+# Prevent overriding the parent project's compiler/linker settings on Windows
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+# Add googletest directly to our build. This defines the gtest and gtest_main
+# targets.
+add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
+                 ${CMAKE_BINARY_DIR}/googletest-build
+                 EXCLUDE_FROM_ALL)