is_terminal_polyfill 1.70.2

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

[[package]]
name = "is_terminal_polyfill"
version = "1.70.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"

[[package]]
name = "sample-is-terminal-polyfill"
version = "1.0.0"
dependencies = [
 "is_terminal_polyfill",
]

[package]
name = "sample-is-terminal-polyfill"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
is_terminal_polyfill = "=1.70.2"

[[bin]]
name = "contract"
path = "test/contract.rs"

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 pkg:cargo/is_terminal_polyfill@1.70.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/is_terminal_polyfill@1.70.2

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:sha256:9e611b2f8d0daf5812617b748cdb53a1794f0d84d4ef460836db479cc22c99dc","contract":["IsTerminal trait is implemented for File and returns false for a regular disk file","IsTerminal trait is implemented for Stdin, Stdout, and Stderr standard streams","IsTerminal trait is implemented for StdinLock, StdoutLock, and StderrLock and matches unlocked handles","IsTerminal can be called via method call syntax or fully qualified syntax"],"goal":"verify pkg:cargo/is_terminal_polyfill@1.70.2","kind":"HOW","packages":["pkg:cargo/is_terminal_polyfill@1.70.2"],"schemaVersion":1},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/is_terminal_polyfill@1.70.2"],"schemaVersion":1,"subject":"pkg:cargo/is_terminal_polyfill@1.70.2","verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/is_terminal_polyfill@1.70.2",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/is_terminal_polyfill@1.70.2"
  ]
}

//! Clean-room verification sample for is_terminal_polyfill.

pub use is_terminal_polyfill::*;

use is_terminal_polyfill::IsTerminal;
use std::fs::File;
use std::io::{stdin, stdout, stderr};

fn main() {
    // 1. IsTerminal trait is implemented for File and returns false for a regular disk file
    let temp_dir = std::env::temp_dir();
    let file_path = temp_dir.join(format!("test_is_terminal_{}.tmp", std::process::id()));
    let file = File::create(&file_path).expect("failed to create temporary file");
    assert!(!file.is_terminal(), "regular disk file must not be a terminal");
    drop(file);
    let _ = std::fs::remove_file(&file_path);

    // 2. IsTerminal trait is implemented for Stdin, Stdout, and Stderr standard streams
    let stdin_term = stdin().is_terminal();
    let stdout_term = stdout().is_terminal();
    let stderr_term = stderr().is_terminal();
    let _ = (stdin_term, stdout_term, stderr_term);

    // 3. IsTerminal trait is implemented for StdinLock, StdoutLock, and StderrLock and matches unlocked handles
    let stdin_handle = stdin();
    let stdin_lock = stdin_handle.lock();
    assert_eq!(stdin_lock.is_terminal(), stdin_term);
    drop(stdin_lock);

    let stdout_handle = stdout();
    let stdout_lock = stdout_handle.lock();
    assert_eq!(stdout_lock.is_terminal(), stdout_term);
    drop(stdout_lock);

    let stderr_handle = stderr();
    let stderr_lock = stderr_handle.lock();
    assert_eq!(stderr_lock.is_terminal(), stderr_term);
    drop(stderr_lock);

    // 4. IsTerminal can be called via method call syntax or fully qualified syntax
    let out = stdout();
    assert_eq!(out.is_terminal(), IsTerminal::is_terminal(&out));

    println!("All is_terminal_polyfill contract assertions passed successfully.");
}