snapshot of https://github.com/grpc/grpc-go.git (master, 2026-09-15; blobs > 131072B omitted)

internal/xds/xdsclient/xdsresource/metadata_test.go

@@ -0,0 +1,259 @@
+/*
+ *
+ * Copyright 2025 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package xdsresource
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"google.golang.org/grpc/internal/testutils"
+	"google.golang.org/grpc/internal/xds/xdsclient/xdsresource/version"
+	"google.golang.org/protobuf/types/known/anypb"
+
+	v3corepb "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
+	v3gcpauthnpb "github.com/envoyproxy/go-control-plane/envoy/extensions/filters/http/gcp_authn/v3"
+)
+
+func (s) TestProxyAddressConverterSuccess(t *testing.T) {
+	cleanup, err := RegisterMetadataConverterForTesting(version.V3AddressURL)
+	if err != nil {
+		t.Fatalf("RegisterMetadataConverterForTesting(%q) failed: %v", version.V3AddressURL, err)
+	}
+	t.Cleanup(cleanup)
+	converter := metadataConverterForType(version.V3AddressURL)
+	if converter == nil {
+		t.Fatalf("Converter for %q not found in registry", version.V3AddressURL)
+	}
+	tests := []struct {
+		name string
+		addr *v3corepb.Address
+		want ProxyAddressMetadataValue
+	}{
+		{
+			name: "valid_IPv4_address_and_port",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address: "192.168.1.1",
+						PortSpecifier: &v3corepb.SocketAddress_PortValue{
+							PortValue: 8080,
+						},
+					},
+				},
+			},
+			want: ProxyAddressMetadataValue{
+				Address: "192.168.1.1:8080",
+			},
+		},
+		{
+			name: "valid_full_IPv6_address_and_port",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address: "2001:0db8:85a3:0000:0000:8a2e:0370:7334",
+						PortSpecifier: &v3corepb.SocketAddress_PortValue{
+							PortValue: 9090,
+						},
+					},
+				},
+			},
+			want: ProxyAddressMetadataValue{
+				Address: "[2001:0db8:85a3:0000:0000:8a2e:0370:7334]:9090",
+			},
+		},
+		{
+			name: "valid_shortened_IPv6_address",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address: "2001:db8::1",
+						PortSpecifier: &v3corepb.SocketAddress_PortValue{
+							PortValue: 9090,
+						},
+					},
+				},
+			},
+			want: ProxyAddressMetadataValue{
+				Address: "[2001:db8::1]:9090",
+			},
+		},
+		{
+			name: "valid_link-local_IPv6_address",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address: "fe80::1ff:fe23:4567:890a",
+						PortSpecifier: &v3corepb.SocketAddress_PortValue{
+							PortValue: 8888,
+						},
+					},
+				},
+			},
+			want: ProxyAddressMetadataValue{
+				Address: "[fe80::1ff:fe23:4567:890a]:8888",
+			},
+		},
+		{
+			name: "valid_IPv4-mapped_IPv6_address",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address: "::ffff:192.0.2.128",
+						PortSpecifier: &v3corepb.SocketAddress_PortValue{
+							PortValue: 1234,
+						},
+					},
+				},
+			},
+			want: ProxyAddressMetadataValue{
+				Address: "[::ffff:192.0.2.128]:1234",
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			anyProto := testutils.MarshalAny(t, tt.addr)
+			got, err := converter.convert(anyProto)
+			if err != nil {
+				t.Fatalf("convert() failed with error: %v", err)
+			}
+			if diff := cmp.Diff(tt.want, got, cmp.AllowUnexported(ProxyAddressMetadataValue{})); diff != "" {
+				t.Errorf("convert() returned unexpected value (-want +got):\n%s", diff)
+			}
+		})
+	}
+}
+
+func (s) TestProxyAddressConverterFailure(t *testing.T) {
+	cleanup, err := RegisterMetadataConverterForTesting(version.V3AddressURL)
+	if err != nil {
+		t.Fatalf("RegisterMetadataConverterForTesting(%q) failed: %v", version.V3AddressURL, err)
+	}
+	t.Cleanup(cleanup)
+	converter := metadataConverterForType(version.V3AddressURL)
+	if converter == nil {
+		t.Fatalf("Converter for %q not found in registry", version.V3AddressURL)
+	}
+	tests := []struct {
+		name    string
+		addr    *v3corepb.Address
+		wantErr string
+	}{
+		{
+			name: "invalid_address",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address: "invalid-ip",
+					},
+				},
+			},
+			wantErr: "address field is not a valid IPv4 or IPv6 address: \"invalid-ip\"",
+		},
+		{
+			name: "missing_socket_address",
+			addr: &v3corepb.Address{
+				// No SocketAddress field set.
+			},
+			wantErr: "no socket_address field in metadata",
+		},
+		{
+			name: "address_is_not_a_socket_address",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_EnvoyInternalAddress{
+					EnvoyInternalAddress: &v3corepb.EnvoyInternalAddress{
+						AddressNameSpecifier: &v3corepb.EnvoyInternalAddress_ServerListenerName{
+							ServerListenerName: "some-internal-listener",
+						},
+					},
+				},
+			},
+			wantErr: "no socket_address field in metadata",
+		},
+		{
+			name: "port_value_not_set",
+			addr: &v3corepb.Address{
+				Address: &v3corepb.Address_SocketAddress{
+					SocketAddress: &v3corepb.SocketAddress{
+						Address:       "127.0.0.1",
+						PortSpecifier: nil,
+					},
+				},
+			},
+			wantErr: "port value not set in socket_address",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			anyProto := testutils.MarshalAny(t, tt.addr)
+			_, err := converter.convert(anyProto)
+			if err == nil || err.Error() != tt.wantErr {
+				t.Errorf("convert() got error = %v, wantErr = %q", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func (s) TestAudienceConverterSuccess(t *testing.T) {
+	cleanup, err := RegisterMetadataConverterForTesting(version.V3AudienceURL)
+	if err != nil {
+		t.Fatalf("RegisterMetadataConverterForTesting(%q) failed: %v", version.V3AudienceURL, err)
+	}
+	t.Cleanup(cleanup)
+	converter := metadataConverterForType(version.V3AudienceURL)
+	if converter == nil {
+		t.Fatalf("Converter for %q not found in registry", version.V3AudienceURL)
+	}
+	tests := []struct {
+		name     string
+		audience *anypb.Any
+		want     AudienceMetadataValue
+		wantErr  string
+	}{
+		{
+			name:     "valid_audience",
+			audience: testutils.MarshalAny(t, &v3gcpauthnpb.Audience{Url: "https://example.com"}),
+			want:     AudienceMetadataValue{Audience: "https://example.com"},
+		},
+		{
+			name:     "empty_audience",
+			audience: testutils.MarshalAny(t, &v3gcpauthnpb.Audience{Url: ""}),
+			want:     AudienceMetadataValue{Audience: ""},
+			wantErr:  "empty url field in audience metadata",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := converter.convert(tt.audience)
+			if tt.wantErr != "" {
+				if err == nil || err.Error() != tt.wantErr {
+					t.Errorf("convert() got error = %v, wantErr = %q", err, tt.wantErr)
+				}
+				return
+			}
+			if err != nil {
+				t.Fatalf("convert() failed with error: %v", err)
+			}
+			if diff := cmp.Diff(tt.want, got); diff != "" {
+				t.Errorf("convert(%s) returned unexpected diff (-want +got):\n%s", tt.audience.GetTypeUrl(), diff)
+			}
+		})
+	}
+}