test: firmware updateCompleted: initial empty file

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: Iac9c70edd003a23420e9239027a994e85ac7284f
diff --git a/test/firmware_state_updatecompleted_unittest.cpp b/test/firmware_state_updatecompleted_unittest.cpp
new file mode 100644
index 0000000..c686ae1
--- /dev/null
+++ b/test/firmware_state_updatecompleted_unittest.cpp
@@ -0,0 +1,7 @@
+/* The goal of these tests is to verify the behavior of all blob commands given
+ * the current state is UpdateCompleted.  This state is achieved as an exit from
+ * updateStarted.
+ *
+ * This can be reached with success or failure from an update, and is reached
+ * via a stat() call from updatedStarted.
+ */