tinyrecord/tests.py at master · eugene-eeo/tinyrecord · GitHub

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
from pytest import fixture, raises
from threading import Thread
from tinydb import where, TinyDB
from tinydb.storages import MemoryStorage
from tinyrecord import transaction, abort


@fixture
def db():
    return TinyDB(storage=MemoryStorage).table('table')


def test_insert_multiple(db):
    with transaction(db) as tr:
        tr.insert_multiple({} for x in range(5))

    assert len(db) == 5


def test_update_callable(db):
    match_all = lambda x: True  # noqa: E731
    [db.insert({'x': {'u': 10}}) for i in range(5)]

    with transaction(db) as tr:
        def function(t):
            t['x']['u'] = 1
        tr.update(function, match_all)

    assert len(db) == 5
    assert all(x['x']['u'] == 1 for x in db.search(match_all))


def test_remove(db):
    [db.insert({}) for i in range(10)]
    anything = lambda x: True  # noqa: E731
    db.search(anything)

    with transaction(db) as tr:
        tr.remove(anything)

    assert not db._query_cache
    assert len(db) == 0

    db.insert({})
    assert db.get(anything) == {}


def test_remove_doc_ids(db):
    doc_id = db.insert({'x': 1})
    other_doc_id = db.insert({'x': 4})

    with transaction(db) as tr:
        tr.remove(doc_ids=[doc_id])

    assert not db.get(doc_id=doc_id)
    assert db.get(doc_id=other_doc_id)


def test_update(db):
    doc_id = db.insert({'x': 1})
    other_doc_id = db.insert({'x': 4})

    with transaction(db) as tr:
        tr.update({'x': 2}, where('x') == 1)
        tr.update({'x': 3}, doc_ids=[doc_id])

    assert db.get(where('x') == 3).doc_id == doc_id
    assert db.get(where('x') == 4).doc_id == other_doc_id


def test_atomicity(db):
    with raises(ValueError):
        with transaction(db) as tr:
            tr.insert({})
            tr.insert({'x': 1})
            tr.update({'x': 2}, where('x') == 1)
            raise ValueError
    assert len(db) == 0


def test_abort(db):
    with transaction(db) as tr:
        tr.insert({})
        abort()

    assert len(db) == 0


def test_insert(db):
    with transaction(db) as tr:
        tr.insert({})
    assert len(db) == 1


def test_concurrent(db):
    def callback():
        with transaction(db) as tr:
            tr.insert({})
            tr.insert({})

    threads = [Thread(target=callback) for i in range(10)]
    [thread.start() for thread in threads]
    [thread.join() for thread in threads]

    ids = {x.doc_id for x in db.all()}
    assert len(ids) == 20


def test_raise(db):
    db.insert({"1": 1})
    db.insert({"2": 2})
    values = db._storage.read()

    def bad(x):
        raise Exception("wtf!")

    with raises(Exception):
        with transaction(db) as tr:
            tr.insert({"3": 3})
            tr.insert({"4": 4})
            tr.update({"2": 3}, doc_ids=[2])
            tr.update({}, bad)

    assert len(db) == 2
    assert values == db._storage.read()