google.golang.org/genproto/googleapis/rpc v0.0.0-20260825221802-da73d73af1c5: attribute_context.AttributeContext_Resource

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource in pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5
Demonstrate these symbols/APIs:
  - google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:cbdfcda1256f2d88680a59d9a7657728a1325a61dc3914c0de0c622d7af001cd","contract":["AttributeContext_Resource field values and getter methods return configured attributes including Service, Name, Type, Uid, DisplayName, Etag, Location, Labels, and Annotations.","AttributeContext_Resource nil pointer receiver methods return zero values without panicking.","AttributeContext_Resource marshals to and unmarshals from protocol buffer wire format with field equivalence.","AttributeContext_Resource marshals to JSON using protojson with camelCase field keys and unmarshals back to identical values.","AttributeContext_Resource Reset clears all fields to their zero values and ProtoReflect returns descriptor matching google.rpc.context.AttributeContext.Resource."],"goal":"verify google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource in pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5","kind":"HOW","packages":["pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5"],"schemaVersion":1,"symbols":["google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource"]},"contractCommand":["go","run","./test"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5"],"schemaVersion":1,"subject":"pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5","symbols":["google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource"],"verifierAdapter":"golang@1"}

module sample

go 1.25.0

require (
	google.golang.org/genproto/googleapis/rpc v0.0.0-20260825221802-da73d73af1c5
	google.golang.org/protobuf v1.36.12
)

github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260825221802-da73d73af1c5 h1:1VUiZAXyC+zmiFYi+WLtBzr68Cj8wOofHjjrA/kkizc=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260825221802-da73d73af1c5/go.mod h1:DjtHYE8FKJLivXcBEjGwndXfIC23G0VpXiXKqG179uA=
google.golang.org/protobuf v1.36.12 h1:pJOKDDOyeXErUroCihFAd5LQuwXBSpVnKGrj5o/fwxc=
google.golang.org/protobuf v1.36.12/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=

package main

import (
	"fmt"

	"google.golang.org/genproto/googleapis/rpc/context/attribute_context"
	"google.golang.org/protobuf/types/known/timestamppb"
)

// NewSampleResource constructs an AttributeContext_Resource instance.
func NewSampleResource(service, name, resType, uid, displayName, location string) *attribute_context.AttributeContext_Resource {
	return &attribute_context.AttributeContext_Resource{
		Service:     service,
		Name:        name,
		Type:        resType,
		Uid:         uid,
		DisplayName: displayName,
		Location:    location,
		CreateTime:  timestamppb.Now(),
		Labels: map[string]string{
			"env": "production",
		},
	}
}

func main() {
	res := NewSampleResource(
		"storage.googleapis.com",
		"//storage.googleapis.com/projects/_/buckets/sample-bucket",
		"storage.googleapis.com/Bucket",
		"res-uuid-001",
		"Sample Storage Bucket",
		"us-central1",
	)
	fmt.Printf("Resource initialized: %s (%s)\n", res.GetName(), res.GetType())
}

{
  "schemaVersion": 1,
  "goal": "verify google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource in pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5",
  "kind": "HOW",
  "packages": [
    "pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260825221802-da73d73af1c5"
  ],
  "symbols": [
    "google.golang.org/genproto/googleapis/rpc/context/attribute_context.AttributeContext_Resource"
  ]
}

package main

import (
	"fmt"
	"os"

	"google.golang.org/genproto/googleapis/rpc/context/attribute_context"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
	"google.golang.org/protobuf/types/known/timestamppb"
)

func main() {
	now := timestamppb.Now()

	// 1. AttributeContext_Resource field values and getter methods return configured attributes including Service, Name, Type, Uid, DisplayName, Etag, Location, Labels, and Annotations.
	{
		res := &attribute_context.AttributeContext_Resource{
			Service:     "storage.googleapis.com",
			Name:        "//storage.googleapis.com/projects/_/buckets/sample-bucket",
			Type:        "storage.googleapis.com/Bucket",
			Labels:      map[string]string{"env": "prod", "tier": "frontend"},
			Uid:         "uuid-9876-abcd",
			Annotations: map[string]string{"managed-by": "automation"},
			DisplayName: "Production Storage Bucket",
			CreateTime:  now,
			UpdateTime:  now,
			Etag:        "etag-v1",
			Location:    "us-central1",
		}

		if res.GetService() != "storage.googleapis.com" {
			fmt.Fprintf(os.Stderr, "FAIL: GetService returned %q\n", res.GetService())
			os.Exit(1)
		}
		if res.GetName() != "//storage.googleapis.com/projects/_/buckets/sample-bucket" {
			fmt.Fprintf(os.Stderr, "FAIL: GetName returned %q\n", res.GetName())
			os.Exit(1)
		}
		if res.GetType() != "storage.googleapis.com/Bucket" {
			fmt.Fprintf(os.Stderr, "FAIL: GetType returned %q\n", res.GetType())
			os.Exit(1)
		}
		if res.GetUid() != "uuid-9876-abcd" {
			fmt.Fprintf(os.Stderr, "FAIL: GetUid returned %q\n", res.GetUid())
			os.Exit(1)
		}
		if res.GetDisplayName() != "Production Storage Bucket" {
			fmt.Fprintf(os.Stderr, "FAIL: GetDisplayName returned %q\n", res.GetDisplayName())
			os.Exit(1)
		}
		if res.GetEtag() != "etag-v1" {
			fmt.Fprintf(os.Stderr, "FAIL: GetEtag returned %q\n", res.GetEtag())
			os.Exit(1)
		}
		if res.GetLocation() != "us-central1" {
			fmt.Fprintf(os.Stderr, "FAIL: GetLocation returned %q\n", res.GetLocation())
			os.Exit(1)
		}
		if res.GetLabels()["env"] != "prod" || res.GetLabels()["tier"] != "frontend" {
			fmt.Fprintf(os.Stderr, "FAIL: GetLabels unexpected: %v\n", res.GetLabels())
			os.Exit(1)
		}
		if res.GetAnnotations()["managed-by"] != "automation" {
			fmt.Fprintf(os.Stderr, "FAIL: GetAnnotations unexpected: %v\n", res.GetAnnotations())
			os.Exit(1)
		}
		if res.GetCreateTime().GetSeconds() != now.GetSeconds() {
			fmt.Fprintf(os.Stderr, "FAIL: GetCreateTime mismatch\n")
			os.Exit(1)
		}
		if res.GetUpdateTime().GetSeconds() != now.GetSeconds() {
			fmt.Fprintf(os.Stderr, "FAIL: GetUpdateTime mismatch\n")
			os.Exit(1)
		}
		if res.GetDeleteTime() != nil {
			fmt.Fprintf(os.Stderr, "FAIL: GetDeleteTime expected nil\n")
			os.Exit(1)
		}
	}

	// 2. AttributeContext_Resource nil pointer receiver methods return zero values without panicking.
	{
		var nilRes *attribute_context.AttributeContext_Resource
		if nilRes.GetService() != "" ||
			nilRes.GetName() != "" ||
			nilRes.GetType() != "" ||
			nilRes.GetUid() != "" ||
			nilRes.GetDisplayName() != "" ||
			nilRes.GetEtag() != "" ||
			nilRes.GetLocation() != "" ||
			nilRes.GetLabels() != nil ||
			nilRes.GetAnnotations() != nil ||
			nilRes.GetCreateTime() != nil ||
			nilRes.GetUpdateTime() != nil ||
			nilRes.GetDeleteTime() != nil {
			fmt.Fprintf(os.Stderr, "FAIL: nil receiver methods returned non-zero value\n")
			os.Exit(1)
		}
	}

	// 3. AttributeContext_Resource marshals to and unmarshals from protocol buffer wire format with field equivalence.
	{
		original := &attribute_context.AttributeContext_Resource{
			Service:     "compute.googleapis.com",
			Name:        "//compute.googleapis.com/projects/example-project/zones/us-central1-a/instances/vm-1",
			Type:        "compute.googleapis.com/Instance",
			Uid:         "uuid-compute-1",
			DisplayName: "Primary VM",
			Location:    "us-central1-a",
			CreateTime:  now,
			Labels:      map[string]string{"role": "worker"},
		}

		wireBytes, err := proto.Marshal(original)
		if err != nil {
			fmt.Fprintf(os.Stderr, "FAIL: proto.Marshal error: %v\n", err)
			os.Exit(1)
		}

		var restored attribute_context.AttributeContext_Resource
		if err := proto.Unmarshal(wireBytes, &restored); err != nil {
			fmt.Fprintf(os.Stderr, "FAIL: proto.Unmarshal error: %v\n", err)
			os.Exit(1)
		}

		if !proto.Equal(original, &restored) {
			fmt.Fprintf(os.Stderr, "FAIL: restored proto does not match original\n")
			os.Exit(1)
		}
	}

	// 4. AttributeContext_Resource marshals to JSON using protojson with camelCase field keys and unmarshals back to identical values.
	{
		original := &attribute_context.AttributeContext_Resource{
			Service:     "pubsub.googleapis.com",
			Name:        "//pubsub.googleapis.com/projects/example-project/topics/notifications",
			Type:        "pubsub.googleapis.com/Topic",
			DisplayName: "Topic Notifications",
			Location:    "global",
			CreateTime:  now,
		}

		jsonData, err := protojson.Marshal(original)
		if err != nil {
			fmt.Fprintf(os.Stderr, "FAIL: protojson.Marshal error: %v\n", err)
			os.Exit(1)
		}

		var jsonRestored attribute_context.AttributeContext_Resource
		if err := protojson.Unmarshal(jsonData, &jsonRestored); err != nil {
			fmt.Fprintf(os.Stderr, "FAIL: protojson.Unmarshal error: %v\n", err)
			os.Exit(1)
		}

		if !proto.Equal(original, &jsonRestored) {
			fmt.Fprintf(os.Stderr, "FAIL: JSON restored proto does not match original\n")
			os.Exit(1)
		}
	}

	// 5. AttributeContext_Resource Reset clears all fields to their zero values and ProtoReflect returns descriptor matching google.rpc.context.AttributeContext.Resource.
	{
		res := &attribute_context.AttributeContext_Resource{
			Service:     "logging.googleapis.com",
			Name:        "//logging.googleapis.com/projects/example-project/logs/syslog",
			Type:        "logging.googleapis.com/LogSink",
			DisplayName: "Syslog Sink",
			Location:    "global",
			Labels:      map[string]string{"tier": "audit"},
		}

		clone := proto.Clone(res).(*attribute_context.AttributeContext_Resource)
		clone.Reset()

		if clone.GetService() != "" ||
			clone.GetName() != "" ||
			clone.GetType() != "" ||
			clone.GetDisplayName() != "" ||
			clone.GetLabels() != nil {
			fmt.Fprintf(os.Stderr, "FAIL: Reset did not clear all fields to zero values\n")
			os.Exit(1)
		}

		descriptor := res.ProtoReflect().Descriptor()
		if string(descriptor.FullName()) != "google.rpc.context.AttributeContext.Resource" {
			fmt.Fprintf(os.Stderr, "FAIL: unexpected descriptor full name: %s\n", descriptor.FullName())
			os.Exit(1)
		}
	}

	fmt.Println("All contracts verified successfully.")
}