from errno import ENOENT, EACCES, EPERM, EROFS
import os
import sys

import pytest

from conda_package_handling import utils


def test_rm_rf_file(testing_workdir):
    with open("dummy", 'w') as f:
        f.write('weeee')
    utils.rm_rf('dummy')

    with open("dummy", 'w') as f:
        f.write('weeee')
    utils.rm_rf(os.path.join(testing_workdir, 'dummy'))

@pytest.mark.parametrize('errno', (ENOENT, EACCES, EPERM, EROFS))
def test_rename_to_trash(testing_workdir, mocker, errno):
    unlink = mocker.patch("os.unlink")
    unlink.side_effect = EnvironmentError(errno, "")
    with open("dummy", 'w') as f:
        f.write('weeee')
    utils.unlink_or_rename_to_trash('dummy')
    assert os.path.isfile('dummy.conda_trash')

    # force a second error for the inner rename try (after unlink fails)
    if sys.platform == 'win32':

        with open("dummy", 'w') as f:
            f.write('weeee')
        rename = mocker.patch("os.rename")
        unlink.side_effect = EnvironmentError(errno, "")
        utils.unlink_or_rename_to_trash('dummy')
        assert os.path.isfile('dummy.conda_trash')


def test_delete_trash(testing_workdir, mocker):
    isdir = mocker.patch("conda_package_handling.utils.isdir")
    isdir.return_value = True
    lexists = mocker.patch("conda_package_handling.utils.lexists")
    lexists.return_value = False
    rmdir = mocker.patch("conda_package_handling.utils.rmdir")

    os.makedirs('folder')
    with open("folder/dummy.conda_trash", 'w') as f:
        f.write('weeee')

    utils.rm_rf('folder')
    assert not os.path.isfile('folder/dummy.conda_trash')