Add test for dhm_parse_dhmfile
diff --git a/tests/data_files/dhparams.pem b/tests/data_files/dhparams.pem
new file mode 100644
index 0000000..7ce05f0
--- /dev/null
+++ b/tests/data_files/dhparams.pem
@@ -0,0 +1,5 @@
+-----BEGIN DH PARAMETERS-----
+MIGHAoGBAJ419DBEOgmQTzo5qXl5fQcN9TN455wkOL7052HzxxRVMyhYmwQcgJvh
+1sa18fyfR9OiVEMYglOpkqVoGLN7qd5aQNNi5W7/C+VBdHTBJcGZJyyP5B3qcz32
+9mLJKudlVudV0Qxk5qUJaPZ/xupz0NyoVpviuiBOI1gNi8ovSXWzAgEC
+-----END DH PARAMETERS-----