import sys
import pytest
from pydu.platform import WINDOWS
from pydu.compat import string_types
from pydu.string import safeunicode
from pydu.cmd import run, cmdline_argv


def test_run():
    retcode, output = run('echo hello')
    assert retcode == 0
    assert safeunicode(output).rstrip('\r\n') == 'hello'

    p = run('echo hello', wait=False)
    assert p.wait() == 0

    retcode, output = run('{} -c "import time; time.sleep(1)"'.format(sys.executable),
                          timeout=0.2, timeinterval=0.05)
    assert retcode != 0
    assert 'timeout' in output


def test_cmdline_argv():
    argv = cmdline_argv()
    for s in argv[1:]:
        assert isinstance(s, string_types)


@pytest.mark.skipif(not WINDOWS, reason='Not support non windows')
def test_chcp():
    from pydu.cmd import chcp
    from ctypes import windll

    origin_code = windll.kernel32.GetConsoleOutputCP()
    with chcp(437):
        assert windll.kernel32.GetConsoleOutputCP() == 437
    assert windll.kernel32.GetConsoleOutputCP() == origin_code

    try:
        chcp(437)
        assert windll.kernel32.GetConsoleOutputCP() == 437
    finally:
        windll.kernel32.SetConsoleOutputCP(origin_code)