diff --git a/src/lib.rs b/src/lib.rs
index 7f4415d..09f778c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1094,6 +1094,10 @@ mod tests {
 
     #[test]
     fn x509_tests() {
-        assert!(can_parse("test/server.bin").is_ok());
+        assert!(can_parse("test/rsa2048-1.der").is_ok());
+        assert!(can_parse("test/rsa2048-2.der").is_ok());
+        assert!(can_parse("test/rsa4096-1.der").is_ok());
+        assert!(can_parse("test/rsa4096-2.der").is_ok());
+        assert!(can_parse("test/rsa4096-3.der").is_ok());
     }
 }
diff --git a/test/server.bin b/test/rsa2048-1.der
similarity index 100%
rename from test/server.bin
rename to test/rsa2048-1.der
diff --git a/test/rsa2048-2.der b/test/rsa2048-2.der
new file mode 100644
index 0000000..9b73c80
Binary files /dev/null and b/test/rsa2048-2.der differ
diff --git a/test/rsa4096-1.der b/test/rsa4096-1.der
new file mode 100644
index 0000000..9d6d253
Binary files /dev/null and b/test/rsa4096-1.der differ
diff --git a/test/rsa4096-2.der b/test/rsa4096-2.der
new file mode 100644
index 0000000..8d83d8a
Binary files /dev/null and b/test/rsa4096-2.der differ
diff --git a/test/rsa4096-3.der b/test/rsa4096-3.der
new file mode 100644
index 0000000..77031ea
Binary files /dev/null and b/test/rsa4096-3.der differ