import tempfile
from pathlib import Path
import pytest
import yaml
from click.testing import CliRunner
from pydantic import ValidationError
from devserver_mcp import main
from devserver_mcp.config import load_config
def test_load_config_invalid_yaml():
with tempfile.NamedTemporaryFile(mode="w", suffix=".yml", delete=False) as f:
f.write("servers:\n api:\n command: 'echo'\n - invalid yaml")
f.flush()
with pytest.raises(yaml.YAMLError):
load_config(f.name)
Path(f.name).unlink()
def test_load_config_invalid_structure():
with tempfile.NamedTemporaryFile(mode="w", suffix=".yml", delete=False) as f:
yaml.dump({"other_key": "value"}, f)
f.flush()
with pytest.raises(ValidationError):
load_config(f.name)
Path(f.name).unlink()
def test_main_function_file_not_found_error():
runner = CliRunner()
result = runner.invoke(main, ["--config", "/nonexistent/path/config.yml"])
assert result.exit_code == 1
assert "Error: Config file not found" in result.output
assert "Looked for 'config.yml' in current directory and parent directories" in result.output
def test_main_function_yaml_parsing_error():
runner = CliRunner()
with tempfile.NamedTemporaryFile(mode="w", suffix=".yml", delete=False) as f:
f.write("invalid: yaml: content: [")
f.flush()
try:
result = runner.invoke(main, ["--config", f.name])
assert result.exit_code == 1
assert "Error loading config" in result.output
finally:
Path(f.name).unlink()
