-
Notifications
You must be signed in to change notification settings - Fork 1.4k
/
results.py
210 lines (165 loc) · 6.54 KB
/
results.py
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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
import datetime
from peewee import *
from .base import get_in_memory_db
from .base import ModelTestCase
from .base_models import *
def lange(x, y=None):
if y is None:
value = range(x)
else:
value = range(x, y)
return list(value)
class TestCursorWrapper(ModelTestCase):
database = get_in_memory_db()
requires = [User]
def test_iteration(self):
for i in range(10):
User.create(username=str(i))
query = User.select()
cursor = query.execute()
first_five = []
for i, u in enumerate(cursor):
first_five.append(int(u.username))
if i == 4: break
self.assertEqual(first_five, lange(5))
names = lambda i: [int(obj.username) for obj in i]
self.assertEqual(names(query[5:]), lange(5, 10))
self.assertEqual(names(query[2:5]), lange(2, 5))
for i in range(2):
self.assertEqual(names(cursor), lange(10))
def test_count(self):
for i in range(5): User.create(username=str(i))
with self.assertQueryCount(1):
query = User.select()
self.assertEqual(len(query), 5)
cursor = query.execute()
self.assertEqual(len(cursor), 5)
with self.assertQueryCount(1):
query = query.where(User.username != '0')
cursor = query.execute()
self.assertEqual(len(cursor), 4)
self.assertEqual(len(query), 4)
def test_nested_iteration(self):
for i in range(4): User.create(username=str(i))
with self.assertQueryCount(1):
query = User.select().order_by(User.username)
outer = []
inner = []
for o_user in query:
outer.append(int(o_user.username))
for i_user in query:
inner.append(int(i_user.username))
self.assertEqual(outer, lange(4))
self.assertEqual(inner, lange(4) * 4)
def test_iterator_protocol(self):
for i in range(3): User.create(username=str(i))
with self.assertQueryCount(1):
query = User.select().order_by(User.id)
cursor = query.execute()
for _ in range(2):
for user in cursor: pass
it = iter(cursor)
for obj in it:
pass
self.assertRaises(StopIteration, next, it)
self.assertEqual([int(u.username) for u in cursor], lange(3))
self.assertEqual(query[0].username, '0')
self.assertEqual(query[2].username, '2')
self.assertRaises(StopIteration, next, it)
def test_iterator(self):
for i in range(3): User.create(username=str(i))
with self.assertQueryCount(1):
cursor = User.select().order_by(User.id).execute()
usernames = [int(u.username) for u in cursor.iterator()]
self.assertEqual(usernames, lange(3))
self.assertTrue(cursor.populated)
self.assertEqual(cursor.row_cache, [])
with self.assertQueryCount(0):
self.assertEqual(list(cursor), [])
def test_query_iterator(self):
for i in range(3): User.create(username=str(i))
with self.assertQueryCount(1):
query = User.select().order_by(User.id)
usernames = [int(u.username) for u in query.iterator()]
self.assertEqual(usernames, lange(3))
with self.assertQueryCount(0):
self.assertEqual(list(query), [])
def test_row_cache(self):
def assertCache(cursor, n):
self.assertEqual([int(u.username) for u in cursor.row_cache],
lange(n))
for i in range(10): User.create(username=str(i))
with self.assertQueryCount(1):
cursor = User.select().order_by(User.id).execute()
cursor.fill_cache(5)
self.assertFalse(cursor.populated)
assertCache(cursor, 5)
cursor.fill_cache(5)
assertCache(cursor, 5)
cursor.fill_cache(6)
assertCache(cursor, 6)
self.assertFalse(cursor.populated)
cursor.fill_cache(11)
self.assertTrue(cursor.populated)
assertCache(cursor, 10)
class TestModelObjectCursorWrapper(ModelTestCase):
database = get_in_memory_db()
requires = [User, Tweet]
def test_model_objects(self):
huey = User.create(username='huey')
mickey = User.create(username='mickey')
for user, tweet in ((huey, 'meow'), (huey, 'purr'), (mickey, 'woof')):
Tweet.create(user=user, content=tweet)
query = (Tweet
.select(Tweet, User.username)
.join(User)
.order_by(Tweet.id)
.objects())
with self.assertQueryCount(1):
self.assertEqual([(t.username, t.content) for t in query], [
('huey', 'meow'),
('huey', 'purr'),
('mickey', 'woof')])
def test_dict_flattening(self):
u = User.create(username='u1')
for i in range(3):
Tweet.create(user=u, content='t%d' % (i + 1))
query = (Tweet
.select(Tweet, User)
.join(User)
.order_by(Tweet.id)
.dicts())
with self.assertQueryCount(1):
results = [(r['id'], r['content'], r['username']) for r in query]
self.assertEqual(results, [
(1, 't1', 'u1'),
(2, 't2', 'u1'),
(3, 't3', 'u1')])
class Reg(TestModel):
key = TextField()
ts = DateTimeField()
class TestSpecifyConverter(ModelTestCase):
requires = [Reg]
def test_specify_converter(self):
D = lambda d: datetime.datetime(2020, 1, d)
for i in range(1, 4):
Reg.create(key='k%s' % i, ts=D(i))
RA = Reg.alias()
subq = RA.select(RA.key, RA.ts, RA.ts.alias('aliased'))
ra_a = subq.c.aliased.alias('aliased')
q = (Reg
.select(Reg.key, subq.c.ts.alias('ts'),
ra_a.converter(Reg.ts.python_value))
.join(subq, on=(Reg.key == subq.c.key).alias('rsub'))
.order_by(Reg.key))
results = [(r.key, r.ts, r.aliased) for r in q.objects()]
self.assertEqual(results, [
('k1', D(1), D(1)),
('k2', D(2), D(2)),
('k3', D(3), D(3))])
results2 = [(r.key, r.rsub.ts, r.rsub.aliased)
for r in q]
self.assertEqual(results, [
('k1', D(1), D(1)),
('k2', D(2), D(2)),
('k3', D(3), D(3))])