anstyle-query 1.1.5

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

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name = "anstyle-query"
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name = "sample-anstyle-query"
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dependencies = [
 "anstyle-query",
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[package]
name = "sample-anstyle-query"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
anstyle-query = "=1.1.5"

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

# Notes on anstyle-query Terminal Capability Lookups

- **What `search_known_solution` answered**: Returned `NO_SAFE_MATCH` — no safe verified match existed for `verify pkg:cargo/anstyle-query@1.1.5`.
- **What a model would have written instead**: A model often assumes that `clicolor()` returns a boolean rather than `Option<bool>`, or assumes `NO_COLOR` parses string boolean values like `"false"` to mean disabled when any non-empty string per the NO_COLOR spec enables the flag.
- **How the wrong version fails**: Calling `clicolor()` expecting a boolean fails to compile or misses the `None` state (meaning unset / use default terminal capability), and treating `NO_COLOR="0"` as allowing color violates the standard no-color specification where any non-empty value disallows color.

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/anstyle-query@1.1.5
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/anstyle-query@1.1.5

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:e4aa2655d94d611bec857b1c988d0abae9e165106c1bd3ae87d2ceca500a96f6","contract":["clicolor returns Some(true) or Some(false) based on CLICOLOR environment variable and None when unset","clicolor_force returns true only when CLICOLOR_FORCE environment variable is non-empty","no_color returns true only when NO_COLOR environment variable is non-empty","truecolor returns true when COLORTERM is set to truecolor or 24bit and false otherwise","term_supports_color returns false when TERM is set to dumb"],"goal":"verify pkg:cargo/anstyle-query@1.1.5","kind":"HOW","packages":["pkg:cargo/anstyle-query@1.1.5"],"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/anstyle-query@1.1.5"],"schemaVersion":1,"subject":"pkg:cargo/anstyle-query@1.1.5","verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify pkg:cargo/anstyle-query@1.1.5",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/anstyle-query@1.1.5"
  ]
}

//! Clean-room verification sample for anstyle-query.

pub use anstyle_query::*;

use anstyle_query::{clicolor, clicolor_force, no_color, term_supports_color, truecolor};

fn main() {
    // 1. clicolor returns Some(true) or Some(false) based on CLICOLOR environment variable and None when unset
    unsafe {
        std::env::remove_var("CLICOLOR");
    }
    assert_eq!(clicolor(), None);

    unsafe {
        std::env::set_var("CLICOLOR", "1");
    }
    assert_eq!(clicolor(), Some(true));

    unsafe {
        std::env::set_var("CLICOLOR", "0");
    }
    assert_eq!(clicolor(), Some(false));

    unsafe {
        std::env::set_var("CLICOLOR", "custom");
    }
    assert_eq!(clicolor(), Some(true));

    // 2. clicolor_force returns true only when CLICOLOR_FORCE environment variable is non-empty
    unsafe {
        std::env::remove_var("CLICOLOR_FORCE");
    }
    assert!(!clicolor_force());

    unsafe {
        std::env::set_var("CLICOLOR_FORCE", "");
    }
    assert!(!clicolor_force());

    unsafe {
        std::env::set_var("CLICOLOR_FORCE", "1");
    }
    assert!(clicolor_force());

    // 3. no_color returns true only when NO_COLOR environment variable is non-empty
    unsafe {
        std::env::remove_var("NO_COLOR");
    }
    assert!(!no_color());

    unsafe {
        std::env::set_var("NO_COLOR", "");
    }
    assert!(!no_color());

    unsafe {
        std::env::set_var("NO_COLOR", "1");
    }
    assert!(no_color());

    // 4. truecolor returns true when COLORTERM is set to truecolor or 24bit and false otherwise
    unsafe {
        std::env::remove_var("COLORTERM");
    }
    assert!(!truecolor());

    unsafe {
        std::env::set_var("COLORTERM", "truecolor");
    }
    assert!(truecolor());

    unsafe {
        std::env::set_var("COLORTERM", "24bit");
    }
    assert!(truecolor());

    unsafe {
        std::env::set_var("COLORTERM", "other");
    }
    assert!(!truecolor());

    // 5. term_supports_color returns false when TERM is set to dumb
    unsafe {
        std::env::set_var("TERM", "dumb");
    }
    assert!(!term_supports_color());

    unsafe {
        std::env::set_var("TERM", "xterm-256color");
    }
    assert!(term_supports_color());

    println!("All anstyle-query contract assertions passed successfully.");
}