pungi/tests/test_media_split.py

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# -*- coding: utf-8 -*-
try:
import unittest2 as unittest
except ImportError:
import unittest
import mock
from pungi import media_split
class ConvertMediaSizeTestCase(unittest.TestCase):
def test_size_parser_correct_number_as_int(self):
self.assertEqual(media_split.convert_media_size(123), 123)
def test_size_parser_correct_number_as_str(self):
self.assertEqual(media_split.convert_media_size("123"), 123)
def test_size_parser_with_unit_b(self):
self.assertEqual(media_split.convert_media_size("123b"), 123)
def test_size_parser_with_unit_k(self):
self.assertEqual(media_split.convert_media_size("123k"), 123 * 1024)
def test_size_parser_with_unit_M(self):
self.assertEqual(media_split.convert_media_size("123M"), 123 * 1024 * 1024)
def test_size_parser_with_unit_G(self):
self.assertEqual(
media_split.convert_media_size("123G"), 123 * 1024 * 1024 * 1024
)
def test_size_parser_with_negative_number(self):
with self.assertRaises(ValueError):
media_split.convert_media_size(-15)
def test_size_parser_with_unknown_unit(self):
with self.assertRaises(ValueError):
media_split.convert_media_size("123X")
class ConvertFileSizeTestCase(unittest.TestCase):
def test_round_up(self):
self.assertEqual(media_split.convert_file_size(123, 2048), 2048)
def test_exactly_block_size(self):
self.assertEqual(media_split.convert_file_size(100, 100), 100)
def bl(s):
return s * 2048
class MediaSplitterTestCase(unittest.TestCase):
def setUp(self):
self.compose = mock.Mock()
def test_sum_size(self):
ms = media_split.MediaSplitter(bl(100))
ms.add_file("first", bl(20))
ms.add_file("second", bl(30))
ms.add_file("third", 10)
self.assertEqual(ms.total_size, bl(50) + 10)
self.assertEqual(ms.total_size_in_blocks, bl(51))
def test_add_same_file_twice(self):
ms = media_split.MediaSplitter(bl(100))
ms.add_file("first", bl(20))
ms.add_file("first", bl(20))
self.assertEqual(ms.total_size, bl(20))
def test_add_same_file_twice_with_different_size(self):
ms = media_split.MediaSplitter(bl(100))
ms.add_file("first", bl(20))
with self.assertRaises(ValueError):
ms.add_file("first", bl(30))
def test_add_too_big_file(self):
ms = media_split.MediaSplitter(bl(100))
with self.assertRaises(ValueError):
ms.add_file("too-big", bl(300))
def test_fit_on_one(self):
ms = media_split.MediaSplitter(bl(100), compose=self.compose)
ms.add_file("first", bl(20))
ms.add_file("second", bl(30))
self.assertEqual(ms.split(), [{"files": ["first", "second"], "size": bl(50)}])
def test_split_on_two_discs(self):
ms = media_split.MediaSplitter(bl(100), compose=self.compose)
ms.add_file("first", bl(25))
ms.add_file("second", bl(40))
ms.add_file("third", bl(80))
self.assertEqual(
ms.split(),
[
{"files": ["first", "second"], "size": bl(65)},
{"files": ["third"], "size": bl(80)},
],
)
def test_split_with_sticky_file(self):
ms = media_split.MediaSplitter(bl(100))
ms.add_file("sticky", bl(15), sticky=True)
ms.add_file("first", bl(25))
ms.add_file("second", bl(40))
ms.add_file("third", bl(80))
self.assertEqual(
ms.split(),
[
{"files": ["sticky", "first", "second"], "size": bl(80)},
{"files": ["sticky", "third"], "size": bl(95)},
],
)
def test_split_unlimited_media(self):
ms = media_split.MediaSplitter(None, compose=self.compose)
ms.add_file("first", bl(25))
ms.add_file("second", bl(40))
ms.add_file("third", bl(80))
self.assertEqual(
ms.split(), [{"files": ["first", "second", "third"], "size": bl(145)}]
)