beets/test/test_ui_init.py

# This file is part of beets.
# Copyright 2016, Adrian Sampson.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.

"""Test module for file ui/__init__.py
"""

import os
import shutil
import unittest
from random import random
from copy import deepcopy

from beets import ui
from test import _common
from test.helper import control_stdin
from beets import config


class InputMethodsTest(_common.TestCase):
    def setUp(self):
        super().setUp()
        self.io.install()

    def _print_helper(self, s):
        print(s)

    def _print_helper2(self, s, prefix):
        print(prefix, s)

    def test_input_select_objects(self):
        full_items = ['1', '2', '3', '4', '5']

        # Test no
        self.io.addinput('n')
        items = ui.input_select_objects(
            "Prompt", full_items, self._print_helper)
        self.assertEqual(items, [])

        # Test yes
        self.io.addinput('y')
        items = ui.input_select_objects(
            "Prompt", full_items, self._print_helper)
        self.assertEqual(items, full_items)

        # Test selective 1
        self.io.addinput('s')
        self.io.addinput('n')
        self.io.addinput('y')
        self.io.addinput('n')
        self.io.addinput('y')
        self.io.addinput('n')
        items = ui.input_select_objects(
            "Prompt", full_items, self._print_helper)
        self.assertEqual(items, ['2', '4'])

        # Test selective 2
        self.io.addinput('s')
        self.io.addinput('y')
        self.io.addinput('y')
        self.io.addinput('n')
        self.io.addinput('y')
        self.io.addinput('n')
        items = ui.input_select_objects(
            "Prompt", full_items,
            lambda s: self._print_helper2(s, "Prefix"))
        self.assertEqual(items, ['1', '2', '4'])

        # Test selective 3
        self.io.addinput('s')
        self.io.addinput('y')
        self.io.addinput('n')
        self.io.addinput('y')
        self.io.addinput('q')
        items = ui.input_select_objects(
            "Prompt", full_items, self._print_helper)
        self.assertEqual(items, ['1', '3'])


class InitTest(_common.LibTestCase):
    def setUp(self):
        super().setUp()

    def test_human_bytes(self):
        tests = [
            (0, '0.0 B'),
            (30, '30.0 B'),
            (pow(2, 10), '1.0 KiB'),
            (pow(2, 20), '1.0 MiB'),
            (pow(2, 30), '1.0 GiB'),
            (pow(2, 40), '1.0 TiB'),
            (pow(2, 50), '1.0 PiB'),
            (pow(2, 60), '1.0 EiB'),
            (pow(2, 70), '1.0 ZiB'),
            (pow(2, 80), '1.0 YiB'),
            (pow(2, 90), '1.0 HiB'),
            (pow(2, 100), 'big'),
        ]
        for i, h in tests:
            self.assertEqual(h, ui.human_bytes(i))

    def test_human_seconds(self):
        tests = [
            (0, '0.0 seconds'),
            (30, '30.0 seconds'),
            (60, '1.0 minutes'),
            (90, '1.5 minutes'),
            (125, '2.1 minutes'),
            (3600, '1.0 hours'),
            (86400, '1.0 days'),
            (604800, '1.0 weeks'),
            (31449600, '1.0 years'),
            (314496000, '1.0 decades'),
        ]
        for i, h in tests:
            self.assertEqual(h, ui.human_seconds(i))


class ParentalDirCreation(_common.TestCase):
    def test_create_yes(self):
        non_exist_path = _common.util.py3_path(os.path.join(
            self.temp_dir, b'nonexist', str(random()).encode()))
        # Deepcopy instead of recovering because exceptions might
        # occur; wish I can use a golang defer here.
        test_config = deepcopy(config)
        test_config['library'] = non_exist_path
        with control_stdin('y'):
            lib = ui._open_library(test_config)
        lib._close()

    def test_create_no(self):
        non_exist_path_parent = _common.util.py3_path(
            os.path.join(self.temp_dir, b'nonexist'))
        non_exist_path = _common.util.py3_path(os.path.join(
            non_exist_path_parent.encode(), str(random()).encode()))
        test_config = deepcopy(config)
        test_config['library'] = non_exist_path

        with control_stdin('n'):
            try:
                lib = ui._open_library(test_config)
            except ui.UserError:
                if os.path.exists(non_exist_path_parent):
                    shutil.rmtree(non_exist_path_parent)
                    raise OSError("Parent directories should not be created.")
            else:
                if lib:
                    lib._close()
                raise OSError("Parent directories should not be created.")


def suite():
    return unittest.TestLoader().loadTestsFromName(__name__)


if __name__ == '__main__':
    unittest.main(defaultTest='suite')