x509-cert: fix test decode_cert_bmpstring

Author: dishmaker

x509-cert/tests/certificate.rs

@@ -469,6 +469,7 @@ fn certificate_arbitrary() {
     }
 }
 
+#[cfg(feature = "pem")]
 #[test]
 fn decode_cert_bmpstring() {
     let der_encoded_cert = include_bytes!("examples/windows_bmpstring.pem");
@@ -477,7 +478,8 @@ fn decode_cert_bmpstring() {
 
     let common_name = cert.tbs_certificate().issuer().common_name().unwrap();
 
-    if let Some(common_name) = common_name {
-        println!("common_name: {}", common_name.value());
-    }
+    assert_eq!(
+        common_name.unwrap().value(),
+        "WDKTestCert 混沌,133906716390833193"
+    );
 }