fix: cover custom Duration type

Author: hugehoo

examples/features/advancedtls/server/main.go

@@ -121,7 +121,7 @@ func createAndRunTLSServer(credsDirectory string, useRevokedCert bool, port int)
 func makeRootProvider(credsDirectory string) certprovider.Provider {
 	rootOptions := pemfile.Options{
 		RootFile:        filepath.Join(credsDirectory, "/ca_cert.pem"),
-		RefreshDuration: credRefreshInterval,
+		RefreshDuration: pemfile.Duration{Duration: credRefreshInterval},
 	}
 
 	rootProvider, err := pemfile.NewProvider(rootOptions)
@@ -142,7 +142,7 @@ func makeIdentityProvider(useRevokedCert bool, credsDirectory string) certprovid
 	identityOptions := pemfile.Options{
 		CertFile:        certFilePath,
 		KeyFile:         filepath.Join(credsDirectory, "server_key.pem"),
-		RefreshDuration: credRefreshInterval,
+		RefreshDuration: pemfile.Duration{Duration: credRefreshInterval},
 	}
 	identityProvider, err := pemfile.NewProvider(identityOptions)
 	if err != nil {

security/advancedtls/examples/credential_reloading_from_files/client/main.go

@@ -58,15 +58,15 @@ func main() {
 	identityOptions := pemfile.Options{
 		CertFile:        *tmpCertFile,
 		KeyFile:         *tmpKeyFile,
-		RefreshDuration: credRefreshingInterval,
+		RefreshDuration: pemfile.Duration{Duration: credRefreshingInterval},
 	}
 	identityProvider, err := pemfile.NewProvider(identityOptions)
 	if err != nil {
 		log.Fatalf("pemfile.NewProvider(%v) failed: %v", identityOptions, err)
 	}
 	rootOptions := pemfile.Options{
 		RootFile:        testdata.Path("client_trust_cert_1.pem"),
-		RefreshDuration: credRefreshingInterval,
+		RefreshDuration: pemfile.Duration{Duration: credRefreshingInterval},
 	}
 	rootProvider, err := pemfile.NewProvider(rootOptions)
 	if err != nil {