diff --git a/.gitmodules b/.gitmodules
index 7e3c92d03..12b7cb918 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "lib/ugfx"]
 	path = lib/ugfx
 	url = https://bitbucket.org/Tectu/ugfx
+[submodule "lib/googletest"]
+	path = lib/googletest
+	url = https://github.com/google/googletest
diff --git a/lib/googletest b/lib/googletest
new file mode 160000
index 000000000..ec44c6c16
--- /dev/null
+++ b/lib/googletest
@@ -0,0 +1 @@
+Subproject commit ec44c6c1675c25b9827aacd08c02433cccde7780