google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4: errdetails.RequestInfo

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/errdetails.RequestInfo in pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4
Demonstrate these symbols/APIs:
  - google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo

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:c93d905a2d78a8140246d6a3c2a0be83bac89d8448ea713ac20f76a6f65e2bc8","contract":["RequestInfo fields RequestId and ServingData store request tracking metadata and are accessible directly and via GetRequestId and GetServingData getters.","RequestInfo getters return safe empty strings when called on nil or zero-initialized RequestInfo receivers.","RequestInfo serializes and deserializes accurately with proto.Marshal and proto.Unmarshal, preserving all message fields.","RequestInfo messages support deep copying with proto.Clone and semantic equality checks with proto.Equal.","RequestInfo.Reset clears all fields back to zero state."],"goal":"verify google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo in pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4","kind":"HOW","packages":["pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4"],"schemaVersion":1,"symbols":["google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo"]},"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@v0.0.0-20260427160629-7cedc36a6bc4"],"schemaVersion":1,"subject":"pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4","symbols":["google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo"],"verifierAdapter":"golang@1"}

module example.com/requestinfo

go 1.26.6

require (
	google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4
	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 v0.0.0-20260427160629-7cedc36a6bc4 h1:tEkOQcXgF6dH1G+MVKZrfpYvozGrzb91k6ha7jireSM=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
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/errdetails"
	"google.golang.org/protobuf/proto"
)

func main() {
	info := &errdetails.RequestInfo{
		RequestId:   "req-xyz-98765",
		ServingData: "data-partition-042",
	}

	fmt.Printf("Request ID: %s\n", info.GetRequestId())
	fmt.Printf("Serving Data: %s\n", info.GetServingData())

	data, err := proto.Marshal(info)
	if err != nil {
		panic(err)
	}

	var decoded errdetails.RequestInfo
	if err := proto.Unmarshal(data, &decoded); err != nil {
		panic(err)
	}

	fmt.Printf("Decoded Request ID: %s\n", decoded.GetRequestId())
	fmt.Printf("Decoded Serving Data: %s\n", decoded.GetServingData())
}

{
  "schemaVersion": 1,
  "goal": "verify google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo in pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4",
  "kind": "HOW",
  "packages": [
    "pkg:golang/google.golang.org/genproto/googleapis/rpc@v0.0.0-20260427160629-7cedc36a6bc4"
  ],
  "symbols": [
    "google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo"
  ]
}

package main

import (
	"fmt"
	"os"

	"google.golang.org/genproto/googleapis/rpc/errdetails"
	"google.golang.org/protobuf/proto"
)

func main() {
	// Assertion 1: RequestInfo fields RequestId and ServingData store request tracking metadata and are accessible directly and via GetRequestId and GetServingData getters.
	{
		info := &errdetails.RequestInfo{
			RequestId:   "req-abc-12345",
			ServingData: "cluster-us-east-1",
		}

		if info.RequestId != "req-abc-12345" {
			fmt.Fprintf(os.Stderr, "FAIL: direct RequestId = %q, want req-abc-12345\n", info.RequestId)
			os.Exit(1)
		}
		if info.ServingData != "cluster-us-east-1" {
			fmt.Fprintf(os.Stderr, "FAIL: direct ServingData = %q, want cluster-us-east-1\n", info.ServingData)
			os.Exit(1)
		}
		if got := info.GetRequestId(); got != "req-abc-12345" {
			fmt.Fprintf(os.Stderr, "FAIL: GetRequestId() = %q, want req-abc-12345\n", got)
			os.Exit(1)
		}
		if got := info.GetServingData(); got != "cluster-us-east-1" {
			fmt.Fprintf(os.Stderr, "FAIL: GetServingData() = %q, want cluster-us-east-1\n", got)
			os.Exit(1)
		}
	}

	// Assertion 2: RequestInfo getters return safe empty strings when called on nil or zero-initialized RequestInfo receivers.
	{
		var nilInfo *errdetails.RequestInfo
		if got := nilInfo.GetRequestId(); got != "" {
			fmt.Fprintf(os.Stderr, "FAIL: nil.GetRequestId() = %q, want empty string\n", got)
			os.Exit(1)
		}
		if got := nilInfo.GetServingData(); got != "" {
			fmt.Fprintf(os.Stderr, "FAIL: nil.GetServingData() = %q, want empty string\n", got)
			os.Exit(1)
		}

		zeroInfo := &errdetails.RequestInfo{}
		if got := zeroInfo.GetRequestId(); got != "" {
			fmt.Fprintf(os.Stderr, "FAIL: zero.GetRequestId() = %q, want empty string\n", got)
			os.Exit(1)
		}
		if got := zeroInfo.GetServingData(); got != "" {
			fmt.Fprintf(os.Stderr, "FAIL: zero.GetServingData() = %q, want empty string\n", got)
			os.Exit(1)
		}
	}

	// Assertion 3: RequestInfo serializes and deserializes accurately with proto.Marshal and proto.Unmarshal, preserving all message fields.
	{
		original := &errdetails.RequestInfo{
			RequestId:   "req-trace-99999",
			ServingData: "shard-88-prod",
		}

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

		var decoded errdetails.RequestInfo
		if err := proto.Unmarshal(data, &decoded); err != nil {
			fmt.Fprintf(os.Stderr, "FAIL: proto.Unmarshal failed: %v\n", err)
			os.Exit(1)
		}

		if !proto.Equal(original, &decoded) {
			fmt.Fprintf(os.Stderr, "FAIL: unmarshaled proto does not match original: got %+v, want %+v\n", &decoded, original)
			os.Exit(1)
		}
		if decoded.GetRequestId() != original.GetRequestId() {
			fmt.Fprintf(os.Stderr, "FAIL: decoded RequestId = %q, want %q\n", decoded.GetRequestId(), original.GetRequestId())
			os.Exit(1)
		}
		if decoded.GetServingData() != original.GetServingData() {
			fmt.Fprintf(os.Stderr, "FAIL: decoded ServingData = %q, want %q\n", decoded.GetServingData(), original.GetServingData())
			os.Exit(1)
		}
	}

	// Assertion 4: RequestInfo messages support deep copying with proto.Clone and semantic equality checks with proto.Equal.
	{
		original := &errdetails.RequestInfo{
			RequestId:   "req-clone-1",
			ServingData: "datacenter-west",
		}

		cloned, ok := proto.Clone(original).(*errdetails.RequestInfo)
		if !ok || !proto.Equal(original, cloned) {
			fmt.Fprintf(os.Stderr, "FAIL: cloned message not equal to original\n")
			os.Exit(1)
		}

		cloned.RequestId = "req-clone-2"
		if proto.Equal(original, cloned) {
			fmt.Fprintf(os.Stderr, "FAIL: expected messages to differ after modifying clone\n")
			os.Exit(1)
		}
	}

	// Assertion 5: RequestInfo.Reset clears all fields back to zero state.
	{
		info := &errdetails.RequestInfo{
			RequestId:   "req-reset-test",
			ServingData: "temp-data",
		}

		info.Reset()
		if info.GetRequestId() != "" {
			fmt.Fprintf(os.Stderr, "FAIL: after Reset, GetRequestId() = %q, want empty string\n", info.GetRequestId())
			os.Exit(1)
		}
		if info.GetServingData() != "" {
			fmt.Fprintf(os.Stderr, "FAIL: after Reset, GetServingData() = %q, want empty string\n", info.GetServingData())
			os.Exit(1)
		}
	}

	fmt.Println("PASS: google.golang.org/genproto/googleapis/rpc/errdetails.RequestInfo contract passed")
}