"""
Tests for ConfigManager.
"""

import pytest
from dcos.utils.config import ConfigManager


class TestConfigManager:
    def test_get_default(self):
        config = ConfigManager()
        assert config.get("version") == "1.0.0"

    def test_set_and_get(self):
        config = ConfigManager()
        config.set("custom_key", "custom_value")
        assert config.get("custom_key") == "custom_value"

    def test_get_missing_default(self):
        config = ConfigManager()
        assert config.get("nonexistent", "fallback") == "fallback"

    def test_all_settings(self):
        config = ConfigManager()
        settings = config.all_settings()
        assert "version" in settings
        assert "max_agents" in settings