import argparse

import configparser

import datetime

import decimal

import os.path

import pathlib

HOME_PATH = pathlib.Path(os.path.expanduser('~'))

CONFFILE_SEED = """

[Historical]

base=USD

"""

def currency_code(s):

    if not ((len(s) == 3) and s.isalpha()):

        raise ValueError("bad currency code: {!r}".format(s))

    return s.upper()

            if remain_len == 3:

                self.args.to_currency = self._convert_or_error(

                    currency_code, self.args.remainder[2])

        else:

            self.error("too many arguments")

    def _build_cache_loader(self):

        kwargs = dict(self.conffile.items('Cache'))

        try:

            kwargs['dir_path'] = kwargs.pop('directory')

        except KeyError:

            pass

        return loaders.FileCache(**kwargs)

    def _build_oxrapi_loader(self):

        kwargs = dict(self.conffile.items('OXR'))

        return loaders.OXRAPIRequest(**kwargs)

    def get_loaders(self):

        loader_chain = loaders.LoaderChain()

        for build_func in [

                self._build_cache_loader,

                self._build_oxrapi_loader,

        ]:

import decimal

import os

import pytest

from . import any_date, relpath

import oxrlib.config

import oxrlib.loaders

INI_DIR_PATH = relpath('config_ini')

def config_from(ini_filename, arglist=None):

    if arglist is None:

        arglist = ['historical', any_date().isoformat()]

    ini_path = INI_DIR_PATH / ini_filename

    return oxrlib.config.Configuration(['--config-file', ini_path.as_posix()] + arglist)

def test_full_config():

    config = config_from('full.ini')

    loaders = config.get_loaders().loaders

    assert type(loaders[0]) is oxrlib.loaders.FileCache

    assert type(loaders[1]) is oxrlib.loaders.OXRAPIRequest

    assert len(loaders) == 2

def test_incomplete_config():

    config = config_from('incomplete.ini')

    assert not config.get_loaders().loaders

def test_empty_config():

    config = config_from(os.devnull)

    assert not config.get_loaders().loaders

@pytest.mark.parametrize('ini_filename,expected_currency,use_switch', [

    (os.devnull, 'USD', False),

    ('full.ini', 'INI', False),