Fix tests and add test that proves multiple DC can be set

Author: da-kami

rcgen/tests/generic.rs

@@ -374,11 +374,12 @@ mod test_parse_ia5string_subject {
 		let params_from_cert = CertificateParams::from_ca_cert_der(cert_der).unwrap();
 
 		// We should find the expected distinguished name in the reconstituted params.
-		let expected_names = &[(&email_address_dn_type, &email_address_dn_value)];
+		let expected_names = &[(email_address_dn_type, email_address_dn_value)];
 		let names = params_from_cert
 			.distinguished_name
-			.iter()
+			.into_iter()
 			.collect::<Vec<(_, _)>>();
+
 		assert_eq!(names, expected_names);
 	}
 }

rcgen/tests/openssl.rs

@@ -1,20 +1,20 @@
 #![cfg(feature = "pem")]
 
-use std::cell::RefCell;
-use std::io::{Error, ErrorKind, Read, Result as ioResult, Write};
-use std::rc::Rc;
-
 use openssl::asn1::{Asn1Integer, Asn1Time};
 use openssl::bn::BigNum;
 use openssl::pkey::PKey;
 use openssl::ssl::{HandshakeError, SslAcceptor, SslConnector, SslMethod};
 use openssl::stack::Stack;
 use openssl::x509::store::{X509Store, X509StoreBuilder};
 use openssl::x509::{CrlStatus, X509Crl, X509Req, X509StoreContext, X509};
+use std::cell::RefCell;
+use std::io::{Error, ErrorKind, Read, Result as ioResult, Write};
+use std::rc::Rc;
+use std::str::FromStr;
 
 use rcgen::{
-	BasicConstraints, Certificate, CertificateParams, DnType, DnValue, GeneralSubtree, IsCa,
-	KeyPair, NameConstraints,
+	BasicConstraints, Certificate, CertificateParams, DnType, DnValue, GeneralSubtree, Ia5String,
+	IsCa, KeyPair, NameConstraints,
 };
 
 mod util;
@@ -540,3 +540,62 @@ fn test_openssl_pkcs1_and_sec1_keys() {
 	let pkcs8_ec_key_der = PrivateKeyDer::try_from(ec_key.private_key_to_pkcs8().unwrap()).unwrap();
 	KeyPair::try_from(&pkcs8_ec_key_der).unwrap();
 }
+
+/// Command used to generate:
+/// `openssl req -x509 -newkey rsa:4096 -nodes -out mycert.pem -keyout mykey.pem -days 365 -subj "/C=US/ST=California/L=San Francisco/O=Example Company/OU=IT Department/CN=www.example.com/DC=example/DC=com"`
+/// Contains two distinct "DC" entries.
+const CERT_WITH_MULTI_DC: &str = r#"-----BEGIN CERTIFICATE-----
+MIIGSzCCBDOgAwIBAgIUECjoFzATY6rTCtu7HKjBtfXnB/owDQYJKoZIhvcNAQEL
+BQAwgbQxCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRYwFAYDVQQH
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+-----END CERTIFICATE-----
+"#;
+
+#[test]
+#[cfg(feature = "x509-parser")]
+fn test_parse_certificate_with_multiple_domain_components() {
+	let param = CertificateParams::from_ca_cert_pem(CERT_WITH_MULTI_DC).unwrap();
+
+	let domain_component_values = param.distinguished_name.get(&DnType::CustomDnType(vec![
+		0, 9, 2342, 19200300, 100, 1, 25,
+	]));
+
+	assert_eq!(
+		domain_component_values,
+		vec![
+			&DnValue::Ia5String(Ia5String::from_str("com").unwrap()),
+			&DnValue::Ia5String(Ia5String::from_str("example").unwrap()),
+		]
+	)
+}