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
|
# Copyright (c) 2010 Chris Moyer http://coredumped.org/
#
# 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, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
class TestDBHandler(object):
"""Test the DBHandler"""
def setup_class(cls):
"""Setup this class"""
cls.sequences = []
def teardown_class(cls):
"""Remove our sequences"""
for s in cls.sequences:
try:
s.delete()
except:
pass
def test_sequence_generator_no_rollover(self):
"""Test the sequence generator without rollover"""
from boto.sdb.db.sequence import SequenceGenerator
gen = SequenceGenerator("ABC")
assert(gen("") == "A")
assert(gen("A") == "B")
assert(gen("B") == "C")
assert(gen("C") == "AA")
assert(gen("AC") == "BA")
def test_sequence_generator_with_rollover(self):
"""Test the sequence generator with rollover"""
from boto.sdb.db.sequence import SequenceGenerator
gen = SequenceGenerator("ABC", rollover=True)
assert(gen("") == "A")
assert(gen("A") == "B")
assert(gen("B") == "C")
assert(gen("C") == "A")
def test_sequence_simple_int(self):
"""Test a simple counter sequence"""
from boto.sdb.db.sequence import Sequence
s = Sequence()
self.sequences.append(s)
assert(s.val == 0)
assert(s.next() == 1)
assert(s.next() == 2)
s2 = Sequence(s.id)
assert(s2.val == 2)
assert(s.next() == 3)
assert(s.val == 3)
assert(s2.val == 3)
def test_sequence_simple_string(self):
from boto.sdb.db.sequence import Sequence, increment_string
s = Sequence(fnc=increment_string)
self.sequences.append(s)
assert(s.val == "A")
assert(s.next() == "B")
def test_fib(self):
"""Test the fibonacci sequence generator"""
from boto.sdb.db.sequence import fib
# Just check the first few numbers in the sequence
lv = 0
for v in [1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144]:
assert(fib(v, lv) == lv+v)
lv = fib(v, lv)
def test_sequence_fib(self):
"""Test the fibonacci sequence"""
from boto.sdb.db.sequence import Sequence, fib
s = Sequence(fnc=fib)
s2 = Sequence(s.id)
self.sequences.append(s)
assert(s.val == 1)
# Just check the first few numbers in the sequence
for v in [1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144]:
assert(s.next() == v)
assert(s.val == v)
assert(s2.val == v) # it shouldn't matter which reference we use since it's garunteed to be consistent
def test_sequence_string(self):
"""Test the String incrementation sequence"""
from boto.sdb.db.sequence import Sequence, increment_string
s = Sequence(fnc=increment_string)
self.sequences.append(s)
assert(s.val == "A")
assert(s.next() == "B")
s.val = "Z"
assert(s.val == "Z")
assert(s.next() == "AA")
|
