import json

import pytest

from spud.config import Configuration


def test_from_file_creates_configuration_from_file(tmpdir, sample_config):
    config_file = tmpdir / "config.json"
    config_file.write(json.dumps(sample_config))

    config = Configuration.from_file(config_file)

    assert config.model_dump() == sample_config


def test_from_file_raises_if_file_not_found(tmpdir):
    with pytest.raises(RuntimeError):
        Configuration.from_file(tmpdir / "nonfile.json")


def test_from_file_raises_if_file_not_json(tmpdir):
    config_file = tmpdir / "config.json"
    config_file.write("notjson")

    with pytest.raises(RuntimeError):
        Configuration.from_file(config_file)


def test_from_file_raises_if_wrong_schema(tmpdir):
    config_file = tmpdir / "config.json"
    config_file.write(json.dumps({"random-key": 1}))

    with pytest.raises(RuntimeError):
        Configuration.from_file(config_file)