zpl_toolchain_cli 0.1.16

Command-line interface for parsing, validating, formatting, and printing ZPL II label code (part of the zpl-toolchain project)
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//! CLI tests for the `zpl explain` subcommand.

use std::process::Command;

use assert_cmd::cargo;

fn zpl_cmd() -> Command {
    Command::new(cargo::cargo_bin!("zpl"))
}

#[test]
fn explain_known_code_json_returns_explanation() {
    let output = zpl_cmd()
        .args(["explain", "ZPL1201", "--output", "json"])
        .output()
        .expect("run explain command");

    assert!(output.status.success());
    let stdout = String::from_utf8_lossy(&output.stdout);
    let json: serde_json::Value = serde_json::from_str(&stdout).expect("valid json");
    assert_eq!(json["id"], "ZPL1201");
    assert!(json["explanation"].is_string());
}

#[test]
fn explain_unknown_code_json_returns_null_explanation() {
    let output = zpl_cmd()
        .args(["explain", "ZPL9999", "--output", "json"])
        .output()
        .expect("run explain command");

    assert!(output.status.success());
    let stdout = String::from_utf8_lossy(&output.stdout);
    let json: serde_json::Value = serde_json::from_str(&stdout).expect("valid json");
    assert_eq!(json["id"], "ZPL9999");
    assert!(json["explanation"].is_null());
}

#[test]
fn explain_pretty_shows_human_readable_text() {
    let output = zpl_cmd()
        .args(["explain", "ZPL1201", "--output", "pretty"])
        .output()
        .expect("run explain command");

    assert!(output.status.success());
    let stdout = String::from_utf8_lossy(&output.stdout);
    assert!(
        stdout.contains("ZPL1201") && stdout.contains(':'),
        "unexpected output: {stdout}"
    );
}

#[test]
fn explain_sarif_output_shape() {
    let output = zpl_cmd()
        .args(["explain", "ZPL1201", "--output", "sarif"])
        .output()
        .expect("run explain command");

    assert!(output.status.success());
    let stdout = String::from_utf8_lossy(&output.stdout);
    let sarif: serde_json::Value = serde_json::from_str(&stdout).expect("valid sarif");
    assert_eq!(sarif["version"].as_str(), Some("2.1.0"));
    assert_eq!(
        sarif["runs"][0]["tool"]["driver"]["name"].as_str(),
        Some("zpl-toolchain-explain")
    );
    assert!(sarif["runs"][0]["results"].is_array());
}