Add tests for parsing CSRs
diff --git a/tests/data_files/server5.req.sha1 b/tests/data_files/server5.req.sha1
new file mode 100644
index 0000000..1a14a15
--- /dev/null
+++ b/tests/data_files/server5.req.sha1
@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIBGDCBvwIBADA0MQswCQYDVQQGEwJOTDERMA8GA1UEChMIUG9sYXJTU0wxEjAQ
+BgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDfMVtl2
+CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA2CMR/+ov0jRdXRa9iojCa3cN
+Vc2KKg76Aci07f+gKTAnBgkqhkiG9w0BCQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0P
+BAQDAgXgMAkGByqGSM49BAEDSQAwRgIhALSf2Mj3er+ocZCN++aEoIp5PQ9JCkPY
+b88ghuTyS7DCAiEA+CnVzNN0I2kpnmKUOUcXxLcjoPaLROgxtubDvKv5ckM=
+-----END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha224 b/tests/data_files/server5.req.sha224
new file mode 100644
index 0000000..2766834
--- /dev/null
+++ b/tests/data_files/server5.req.sha224
@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIBGDCBvwIBADA0MQswCQYDVQQGEwJOTDERMA8GA1UEChMIUG9sYXJTU0wxEjAQ
+BgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDfMVtl2
+CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA2CMR/+ov0jRdXRa9iojCa3cN
+Vc2KKg76Aci07f+gKTAnBgkqhkiG9w0BCQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0P
+BAQDAgXgMAoGCCqGSM49BAMBA0gAMEUCIDYaN1m9MRk5mhX1U8aZKd0alyGKWqcR
+oglF2MsIii/2AiEAjFHs8XQ0Q4yDF8oLztCxlq3nAvqmPdQz9T+TkEfh+PA=
+-----END CERTIFICATE REQUEST-----
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-----
+MIIBFzCBvwIBADA0MQswCQYDVQQGEwJOTDERMA8GA1UEChMIUG9sYXJTU0wxEjAQ
+BgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDfMVtl2
+CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA2CMR/+ov0jRdXRa9iojCa3cN
+Vc2KKg76Aci07f+gKTAnBgkqhkiG9w0BCQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0P
+BAQDAgXgMAoGCCqGSM49BAMCA0cAMEQCIGmRFdjjd53oM2Zpt3E5vfqujnA+DHWk
+s9OudcSWBdjmAiA7BAYjGnXyL6ATPqM7qnLVGTf3JMT+1rXl7esBm/0APA==
+-----END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha384 b/tests/data_files/server5.req.sha384
new file mode 100644
index 0000000..87556c6
--- /dev/null
+++ b/tests/data_files/server5.req.sha384
@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIBFzCBvwIBADA0MQswCQYDVQQGEwJOTDERMA8GA1UEChMIUG9sYXJTU0wxEjAQ
+BgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDfMVtl2
+CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA2CMR/+ov0jRdXRa9iojCa3cN
+Vc2KKg76Aci07f+gKTAnBgkqhkiG9w0BCQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0P
+BAQDAgXgMAoGCCqGSM49BAMDA0cAMEQCIDnO+PIPZJGqiky9unvq13uXxahw1bpk
+Zb5NRV0c06Q5AiAo5B49tp3kDN/n0BDNt1BBGLUfhcU+Qn2SQenCyfuGLg==
+-----END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/server5.req.sha512 b/tests/data_files/server5.req.sha512
new file mode 100644
index 0000000..607741e
--- /dev/null
+++ b/tests/data_files/server5.req.sha512
@@ -0,0 +1,8 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIBGDCBvwIBADA0MQswCQYDVQQGEwJOTDERMA8GA1UEChMIUG9sYXJTU0wxEjAQ
+BgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDfMVtl2
+CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA2CMR/+ov0jRdXRa9iojCa3cN
+Vc2KKg76Aci07f+gKTAnBgkqhkiG9w0BCQ4xGjAYMAkGA1UdEwQCMAAwCwYDVR0P
+BAQDAgXgMAoGCCqGSM49BAMEA0gAMEUCIQD8xdtluTiBJM50d/WvDeUvPbXOUMlL
+8xEJXU2WOK+RLAIgS8U6Z8tlJpXLEisz/j4gdABG3Y3h4PBJjlpszFisTNo=
+-----END CERTIFICATE REQUEST-----