heck 0.5.0: heck::AsTitleCase

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

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name = "heck"
version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"

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

[dependencies]
heck = "=0.5.0"

[[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 heck::AsTitleCase in pkg:cargo/heck@0.5.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/heck@0.5.0
Demonstrate these symbols/APIs:
  - heck::AsTitleCase

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:a7546548346fe1d02b2ebda8d4535fae758b476f7f7b170f3a207db24e914891","contract":["AsTitleCase wraps a string slice and formats as Title Case via Display","AsTitleCase converts snake_case and SHOUTY_SNAKE_CASE to Title Case","AsTitleCase handles kebab-case and mixed delimiters","AsTitleCase supports owned String and custom AsRef\u003cstr\u003e types","AsTitleCase preserves already Title Case strings and handles empty input"],"goal":"verify heck::AsTitleCase in pkg:cargo/heck@0.5.0","kind":"HOW","packages":["pkg:cargo/heck@0.5.0"],"schemaVersion":1,"symbols":["heck::AsTitleCase"]},"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/heck@0.5.0"],"schemaVersion":1,"subject":"pkg:cargo/heck@0.5.0","symbols":["heck::AsTitleCase"],"verifierAdapter":"cargo@1"}

{
  "schemaVersion": 1,
  "goal": "verify heck::AsTitleCase in pkg:cargo/heck@0.5.0",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/heck@0.5.0"
  ],
  "symbols": [
    "heck::AsTitleCase"
  ]
}

//! Clean-room verification sample for heck::AsTitleCase.

pub use heck::*;

use heck::AsTitleCase;

fn main() {
    // 1. AsTitleCase wraps a string slice and formats as Title Case via Display
    assert_eq!(
        format!("{}", AsTitleCase("camelCase")),
        "Camel Case"
    );
    assert_eq!(
        AsTitleCase("we have always lived in slums and holes in the wall.").to_string(),
        "We Have Always Lived In Slums And Holes In The Wall"
    );

    // 2. AsTitleCase converts snake_case and SHOUTY_SNAKE_CASE to Title Case
    assert_eq!(
        format!("{}", AsTitleCase("snake_case")),
        "Snake Case"
    );
    assert_eq!(
        format!("{}", AsTitleCase("SHOUTY_SNAKE_CASE")),
        "Shouty Snake Case"
    );

    // 3. AsTitleCase handles kebab-case and mixed delimiters
    assert_eq!(
        format!("{}", AsTitleCase("kebab-case-string")),
        "Kebab Case String"
    );
    assert_eq!(
        format!("{}", AsTitleCase("MixedUP CamelCase, with some Spaces")),
        "Mixed Up Camel Case With Some Spaces"
    );

    // 4. AsTitleCase supports owned String and custom AsRef<str> types
    let s = String::from("hello_world");
    assert_eq!(
        format!("{}", AsTitleCase(s)),
        "Hello World"
    );

    // 5. AsTitleCase preserves already Title Case strings and handles empty input
    assert_eq!(
        format!("{}", AsTitleCase("Already Title Case")),
        "Already Title Case"
    );
    assert_eq!(
        format!("{}", AsTitleCase("")),
        ""
    );

    println!("All heck::AsTitleCase contract assertions passed successfully.");
}