Update TEST_MAPPING

Test: None
Change-Id: I6b881650e9ddb43fca63417c90d6cdb48b9fb10c
diff --git a/TEST_MAPPING b/TEST_MAPPING
index edda712..9f94cda 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": "crossbeam-epoch_device_test_src_lib"
     },
     {