Update TEST_MAPPING

Test: None
Change-Id: I8013bdbcabf75a83c92bbb7db85f6e6fba03df22
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 19817ee..05c6d70 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -2,6 +2,15 @@
 {
   "presubmit": [
     {
+      "name": "base64_device_test_tests_decode"
+    },
+    {
+      "name": "base64_device_test_tests_encode"
+    },
+    {
+      "name": "base64_device_test_tests_helpers"
+    },
+    {
       "name": "unicode-xid_device_test_src_lib"
     },
     {