"""Tests for file_parser."""
from json import JSONDecodeError

import pytest
from json_contract_file_import import file_parser
from json_contract_file_import.constants.json_contract_file_import import \
    DEFAULT_ENCODING


def test_parse_bytes_empty_json():
    """Test parse empty json."""
    parsed_json = file_parser.parse_bytes(bytes('[{}]', DEFAULT_ENCODING))

    assert [{}] == parsed_json


def test_parse_bytes_simple_json(mock_json_contract_file,
                                 mock_json_contract_file_parsed):
    """Test parse simple json."""
    parsed_json = file_parser.parse_bytes(
        bytes(mock_json_contract_file, DEFAULT_ENCODING))

    assert parsed_json == mock_json_contract_file_parsed


def test_parse_bytes_invalid_json():
    """Test parse invalid JSON."""
    file_bytes = bytes("""
    {
        "key": "value_without_closing_quote
    }
    """, DEFAULT_ENCODING)
    with pytest.raises(JSONDecodeError):
        file_parser.parse_bytes(file_bytes)