diff --git a/tests/data_files/enco-cert-utf8str.pem b/tests/data_files/enco-cert-utf8str.pem
new file mode 100644
index 0000000..7d613d9
--- /dev/null
+++ b/tests/data_files/enco-cert-utf8str.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----