1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
# Copyright 2015-2016 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import unittest
import obnamlib
class BlobStoreTests(unittest.TestCase):
def test_returns_None_for_missing_blob(self):
bag_store = DummyBagStore()
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_id = obnamlib.make_object_id(123, 456)
self.assertEqual(blob_store.get_blob(blob_id), None)
def test_returns_existing_blob(self):
bag_store = DummyBagStore()
blob = 'blobby blob blob blob'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_id = blob_store.put_blob(blob)
retrieved = blob_store.get_blob(blob_id)
self.assertEqual(blob, retrieved)
def test_stores_blob_persistently(self):
bag_store = DummyBagStore()
blob = 'this is a blob, yes it is'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_id = blob_store.put_blob(blob)
blob_store.flush()
blob_store_2 = obnamlib.BlobStore()
blob_store_2.set_bag_store(bag_store)
retrieved = blob_store_2.get_blob(blob_id)
self.assertEqual(blob, retrieved)
def test_gets_persistent_blob_twice(self):
bag_store = DummyBagStore()
blob = 'this is a blob, yes it is'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_id = blob_store.put_blob(blob)
blob_store.flush()
blob_store_2 = obnamlib.BlobStore()
blob_store_2.set_bag_store(bag_store)
retrieved_1 = blob_store_2.get_blob(blob_id)
retrieved_2 = blob_store_2.get_blob(blob_id)
self.assertEqual(retrieved_1, retrieved_2)
def test_obeys_max_bag_size(self):
bag_store = DummyBagStore()
blob = 'this is a blob, yes it is'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_store.set_max_bag_size(len(blob) + 1)
blob_store.put_blob(blob)
self.assertTrue(bag_store.is_empty())
blob_store.set_max_bag_size(1)
blob_store.put_blob(blob)
self.assertFalse(bag_store.is_empty())
def test_finds_unflushed_blob(self):
bag_store = DummyBagStore()
blob = 'this is a blob, yes it is'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_store.set_max_bag_size(len(blob) + 1)
blob_id = blob_store.put_blob(blob)
self.assertTrue(bag_store.is_empty())
retrieved = blob_store.get_blob(blob_id)
self.assertEqual(blob, retrieved)
def test_returns_None_if_well_known_blog_does_not_exist(self):
bag_store = DummyBagStore()
well_known_id = 'bobby'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
retrieved = blob_store.get_well_known_blob(well_known_id)
self.assertEqual(retrieved, None)
def test_puts_well_known_blob(self):
bag_store = DummyBagStore()
well_known_blob = 'Bob'
well_known_id = 'bobby'
blob_store = obnamlib.BlobStore()
blob_store.set_bag_store(bag_store)
blob_store.set_max_bag_size(len(well_known_blob) + 1)
returned_id = blob_store.put_well_known_blob(
well_known_id, well_known_blob)
self.assertEqual(returned_id, None)
retrieved = blob_store.get_well_known_blob(well_known_id)
self.assertEqual(well_known_blob, retrieved)
class DummyBagStore(object):
def __init__(self):
self._bags = {}
self._prev_id = 0
def is_empty(self):
return len(self._bags) == 0
def reserve_bag_id(self):
self._prev_id += 1
return self._prev_id
def put_bag(self, bag):
self._bags[bag.get_id()] = bag
def has_bag(self, bag_id):
return bag_id in self._bags
def get_bag(self, bag_id):
return self._bags[bag_id]
|
