message: Set environment variable for SSL root certs.
diff: @@ -21,6 +21,11 @@ CLI="$1"
  KEK_URI="$2"
  CREDENTIAL_FILE="$3"
  +# Root certificates for GRPC.
  +# Referece:
  +# https://github.com/grpc/grpc/blob/master/doc/environment_variables.md
  +export GRPC_DEFAULT_SSL_ROOTS_FILE_PATH="${TEST_SRCDIR}/google_root_pem/file/downloaded"
  +
  DATA_FILE="${TEST_TMPDIR}/example_data.txt"
  KEYSET_FILE="${TEST_TMPDIR}/example_encrypted_keyset.json"
  