diff --git a/tests/data_files/crl-future.pem b/tests/data_files/crl-future.pem
new file mode 100644
index 0000000..1938219
--- /dev/null
+++ b/tests/data_files/crl-future.pem
@@ -0,0 +1,11 @@
+-----BEGIN X509 CRL-----
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++cE+lWxhCQ==
+-----END X509 CRL-----
diff --git a/tests/data_files/server5-future.crt b/tests/data_files/server5-future.crt
new file mode 100644
index 0000000..969c84b
--- /dev/null
+++ b/tests/data_files/server5-future.crt
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----