# -*- coding: utf-8 -*-
"""Testing built_ins.Aliases"""
from __future__ import unicode_literals, print_function

import os
import nose
from nose.plugins.skip import SkipTest
from nose.tools import assert_equal

import xonsh.built_ins as built_ins
from xonsh.aliases import Aliases
from xonsh.environ import Env
from xonsh.tools import ON_WINDOWS

from tools import mock_xonsh_env


def cd(args, stdin=None):
    return args

ALIASES = Aliases({'o': ['omg', 'lala']},
                  color_ls=['ls', '--color=true'],
                  ls="ls '-  -'",
                  cd=cd,
                  indirect_cd='cd ..')
RAW = ALIASES._raw

def test_imports():
    assert_equal(RAW, {
        'o': ['omg', 'lala'],
        'ls': ['ls', '-  -'],
        'color_ls': ['ls', '--color=true'],
        'cd': cd,
        'indirect_cd': ['cd', '..']
    })

def test_eval_normal():
    with mock_xonsh_env({}):
        assert_equal(ALIASES.get('o'), ['omg', 'lala'])

def test_eval_self_reference():
    with mock_xonsh_env({}):
        assert_equal(ALIASES.get('ls'), ['ls', '-  -'])

def test_eval_recursive():
    with mock_xonsh_env({}):
        assert_equal(ALIASES.get('color_ls'), ['ls', '-  -', '--color=true'])

def test_eval_recursive_callable_partial():
    if ON_WINDOWS:
        raise SkipTest
    built_ins.ENV = Env(HOME=os.path.expanduser('~'))
    with mock_xonsh_env(built_ins.ENV):
        assert_equal(ALIASES.get('indirect_cd')(['arg2', 'arg3']),
                     ['..', 'arg2', 'arg3'])

if __name__ == '__main__':
    nose.runmodule()