golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1: Restore

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 golang.org/x/term.Restore in pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1
Demonstrate these symbols/APIs:
  - golang.org/x/term.Restore

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.

package sample_test

import (
	"os"
	"testing"

	"golang.org/x/term"
)

func TestRestore(t *testing.T) {
	dummyState := &term.State{}

	// Restoring terminal state on a non-terminal file descriptor returns an error
	r, w, err := os.Pipe()
	if err != nil {
		t.Fatalf("failed to create pipe: %v", err)
	}
	defer r.Close()
	defer w.Close()

	if err := term.Restore(int(r.Fd()), dummyState); err == nil {
		t.Fatal("expected error restoring terminal state on non-terminal pipe reader, got nil")
	}
	if err := term.Restore(int(w.Fd()), dummyState); err == nil {
		t.Fatal("expected error restoring terminal state on non-terminal pipe writer, got nil")
	}

	// Restoring terminal state on an invalid file descriptor returns an error
	if err := term.Restore(-1, dummyState); err == nil {
		t.Fatal("expected error restoring terminal state on invalid fd -1, got nil")
	}
}

{"case":{"caseId":"case:sha256:bced9172a41c671c9e18fb50c64f8d15b78f7c1c71187d8dd7fa58f866455dfe","contract":["term.Restore returns error when restoring terminal state on a non-terminal file descriptor","term.Restore returns error when restoring terminal state on an invalid file descriptor"],"goal":"verify golang.org/x/term.Restore in pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1","kind":"HOW","packages":["pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1"],"schemaVersion":1,"symbols":["golang.org/x/term.Restore"]},"contractCommand":["go","test","-v","./..."],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","language":"go","languageVersion":"1.26.6","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","packageManagerVersion":"1.26.6","runtime":"go","runtimeVersion":"1.26.6","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1"],"schemaVersion":1,"subject":"pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1","symbols":["golang.org/x/term.Restore"],"verifierAdapter":"golang@1"}

module sample

go 1.26.6

require golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1

require golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 // indirect

golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=

{
  "schemaVersion": 1,
  "goal": "verify golang.org/x/term.Restore in pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1",
  "kind": "HOW",
  "packages": [
    "pkg:golang/golang.org/x/term@v0.0.0-20201126162022-7de9c90e9dd1"
  ],
  "symbols": [
    "golang.org/x/term.Restore"
  ]
}