wavepeek 0.4.0

Command-line tool for RTL waveform inspection with deterministic machine-friendly output.
Documentation 
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use assert_cmd::prelude::*;
use serde_json::Value;
use std::fs;
use std::path::PathBuf;

mod common;
use common::wavepeek_cmd;

fn canonical_schema_path() -> PathBuf {
    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
        .join("schema")
        .join("wavepeek.json")
}

#[test]
fn schema_command_prints_canonical_artifact_bytes() {
    let mut command = wavepeek_cmd();
    let assert = command.args(["schema"]).assert().success();

    let expected = fs::read(canonical_schema_path()).expect("schema file should be readable");
    assert_eq!(assert.get_output().stdout, expected);
    assert!(assert.get_output().stderr.is_empty());
}

#[test]
fn schema_command_output_is_valid_json() {
    let mut command = wavepeek_cmd();
    let assert = command.args(["schema"]).assert().success();

    let stdout = String::from_utf8_lossy(&assert.get_output().stdout).to_string();
    let value: Value = serde_json::from_str(&stdout).expect("schema output should be valid json");

    assert_eq!(value["type"], "object");
    assert!(value["$defs"].is_object());
}

#[test]
fn schema_command_output_is_deterministic_across_runs() {
    let first = wavepeek_cmd()
        .args(["schema"])
        .output()
        .expect("first run should execute");
    let second = wavepeek_cmd()
        .args(["schema"])
        .output()
        .expect("second run should execute");

    assert!(first.status.success());
    assert!(second.status.success());
    assert_eq!(first.stdout, second.stdout);
    assert_eq!(first.stderr, second.stderr);
}

#[test]
fn schema_command_includes_property_command_branch() {
    let mut command = wavepeek_cmd();
    let assert = command.args(["schema"]).assert().success();

    let stdout = String::from_utf8_lossy(&assert.get_output().stdout).to_string();
    let value: Value = serde_json::from_str(&stdout).expect("schema output should be valid json");

    let commands = value["properties"]["command"]["enum"]
        .as_array()
        .expect("command enum should be array");
    assert!(
        commands.iter().any(|entry| entry == "property"),
        "schema command enum should include property"
    );

    let data_variants = value["properties"]["data"]["oneOf"]
        .as_array()
        .expect("data variants should be array");
    assert!(
        data_variants
            .iter()
            .any(|entry| entry["$ref"] == "#/$defs/propertyData"),
        "schema data variants should include propertyData"
    );
}