"""Envelope tests for ``muse agent`` subcommands."""
from __future__ import annotations
import json
import pytest
from tests.cli_test_helper import CliRunner

runner = CliRunner()
_HUB = "http://test.example.com"

class TestAgentEnvelope:
    def test_list_has_muse_version(self) -> None:
        r = runner.invoke(None, ["agent", "list", "--hub", _HUB, "-j"])
        assert r.exit_code == 0, r.output
        assert "muse_version" in json.loads(r.output)

    def test_list_has_schema(self) -> None:
        r = runner.invoke(None, ["agent", "list", "--hub", _HUB, "-j"])
        assert "schema" in json.loads(r.output)

    def test_list_has_timestamp(self) -> None:
        r = runner.invoke(None, ["agent", "list", "--hub", _HUB, "-j"])
        assert "timestamp" in json.loads(r.output)

    def test_list_has_warnings(self) -> None:
        r = runner.invoke(None, ["agent", "list", "--hub", _HUB, "-j"])
        assert "warnings" in json.loads(r.output)

    def test_list_no_schema_version(self) -> None:
        r = runner.invoke(None, ["agent", "list", "--hub", _HUB, "-j"])
        assert "schema_version" not in json.loads(r.output)