Add tests for parsing CSRs
diff --git a/tests/data_files/server5.req.sha256 b/tests/data_files/server5.req.sha256
new file mode 100644
index 0000000..c59e15f
--- /dev/null
+++ b/tests/data_files/server5.req.sha256
@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA2CMR/+ov0jRdXRa9iojCa3cN
+Vc2KKg76Aci07f+gKTAnBgkqhkiG9w0BCQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0P
+BAQDAgXgMAoGCCqGSM49BAMCA0cAMEQCIGmRFdjjd53oM2Zpt3E5vfqujnA+DHWk
+s9OudcSWBdjmAiA7BAYjGnXyL6ATPqM7qnLVGTf3JMT+1rXl7esBm/0APA==
+-----END CERTIFICATE REQUEST-----