1 files changed, 13 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/http2/go18_test.go b/vendor/golang.org/x/net/http2/go18_test.go
index 836550597..30e3b038b 100644
--- a/vendor/golang.org/x/net/http2/go18_test.go
+++ b/vendor/golang.org/x/net/http2/go18_test.go
@@ -7,6 +7,7 @@
 package http2
 
 import (
+	"crypto/tls"
 	"net/http"
 	"testing"
 	"time"
@@ -64,3 +65,15 @@ func TestConfigureServerIdleTimeout_Go18(t *testing.T) {
 		}
 	}
 }
+
+func TestCertClone(t *testing.T) {
+	c := &tls.Config{
+		GetClientCertificate: func(*tls.CertificateRequestInfo) (*tls.Certificate, error) {
+			panic("shouldn't be called")
+		},
+	}
+	c2 := cloneTLSConfig(c)
+	if c2.GetClientCertificate == nil {
+		t.Error("GetClientCertificate is nil")
+	}
+}