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
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
|
# Copyright (c) 2012 Mitch Garnaat http://garnaat.org/
# All rights reserved.
#
# 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.
"""
Tests for Layer2 of Amazon DynamoDB
"""
import unittest
import time
import uuid
from boto.dynamodb.exceptions import DynamoDBKeyNotFoundError
from boto.dynamodb.layer2 import Layer2
class DynamoDBLayer2Test (unittest.TestCase):
def test_layer2_basic(self):
print '--- running Amazon DynamoDB Layer2 tests ---'
c = Layer2()
# First create a schema for the table
hash_key_name = 'forum_name'
hash_key_proto_value = ''
range_key_name = 'subject'
range_key_proto_value = ''
schema = c.create_schema(hash_key_name, hash_key_proto_value,
range_key_name, range_key_proto_value)
# Create another schema without a range key
schema2 = c.create_schema('post_id', '')
# Now create a table
index = int(time.time())
table_name = 'test-%d' % index
read_units = 5
write_units = 5
table = c.create_table(table_name, schema, read_units, write_units)
assert table.name == table_name
assert table.schema.hash_key_name == hash_key_name
assert table.schema.hash_key_type == c.get_dynamodb_type(hash_key_proto_value)
assert table.schema.range_key_name == range_key_name
assert table.schema.range_key_type == c.get_dynamodb_type(range_key_proto_value)
assert table.read_units == read_units
assert table.write_units == write_units
# Create the second table
table2_name = 'test-%d' % (index + 1)
table2 = c.create_table(table2_name, schema2, read_units, write_units)
# Wait for table to become active
table.refresh(wait_for_active=True)
table2.refresh(wait_for_active=True)
# List tables and make sure new one is there
table_names = c.list_tables()
assert table_name in table_names
assert table2_name in table_names
# Update the tables ProvisionedThroughput
new_read_units = 10
new_write_units = 5
table.update_throughput(new_read_units, new_write_units)
# Wait for table to be updated
table.refresh(wait_for_active=True)
assert table.read_units == new_read_units
assert table.write_units == new_write_units
# Put an item
item1_key = 'Amazon DynamoDB'
item1_range = 'DynamoDB Thread 1'
item1_attrs = {
'Message': 'DynamoDB thread 1 message text',
'LastPostedBy': 'User A',
'Views': 0,
'Replies': 0,
'Answered': 0,
'Public': True,
'Tags': set(['index', 'primarykey', 'table']),
'LastPostDateTime': '12/9/2011 11:36:03 PM'}
item1 = table.new_item(item1_key, item1_range, item1_attrs)
# make sure the put() succeeds
try:
item1.put()
except c.layer1.ResponseError, e:
raise Exception("Item put failed: %s" % e)
# Try to get an item that does not exist.
self.assertRaises(DynamoDBKeyNotFoundError,
table.get_item, 'bogus_key', item1_range)
# Now do a consistent read and check results
item1_copy = table.get_item(item1_key, item1_range,
consistent_read=True)
assert item1_copy.hash_key == item1.hash_key
assert item1_copy.range_key == item1.range_key
for attr_name in item1_copy:
val = item1_copy[attr_name]
if isinstance(val, (int, long, float, basestring)):
assert val == item1[attr_name]
# Try retrieving only select attributes
attributes = ['Message', 'Views']
item1_small = table.get_item(item1_key, item1_range,
attributes_to_get=attributes,
consistent_read=True)
for attr_name in item1_small:
# The item will include the attributes we asked for as
# well as the hashkey and rangekey, so filter those out.
if attr_name not in (item1_small.hash_key_name,
item1_small.range_key_name):
assert attr_name in attributes
self.assertTrue(table.has_item(item1_key, range_key=item1_range,
consistent_read=True))
# Try to delete the item with the wrong Expected value
expected = {'Views': 1}
try:
item1.delete(expected_value=expected)
except c.layer1.ResponseError, e:
pass
else:
raise Exception("Expected Value condition failed")
# Try to delete a value while expecting a non-existant attribute
expected = {'FooBar': True}
try:
item1.delete(expected_value=expected)
except c.layer1.ResponseError, e:
pass
# Now update the existing object
item1.add_attribute('Replies', 2)
removed_attr = 'Public'
item1.delete_attribute(removed_attr)
removed_tag = item1_attrs['Tags'].copy().pop()
item1.delete_attribute('Tags', set([removed_tag]))
replies_by_set = set(['Adam', 'Arnie'])
item1.put_attribute('RepliesBy', replies_by_set)
retvals = item1.save(return_values='ALL_OLD')
# Need more tests here for variations on return_values
assert 'Attributes' in retvals
# Check for correct updates
item1_updated = table.get_item(item1_key, item1_range,
consistent_read=True)
assert item1_updated['Replies'] == item1_attrs['Replies'] + 2
self.assertFalse(item1_updated.has_key(removed_attr))
self.assertTrue(removed_tag not in item1_updated['Tags'])
self.assertTrue(item1_updated.has_key('RepliesBy'))
self.assertTrue(item1_updated['RepliesBy'] == replies_by_set)
# Put a few more items into the table
item2_key = 'Amazon DynamoDB'
item2_range = 'DynamoDB Thread 2'
item2_attrs = {
'Message': 'DynamoDB thread 2 message text',
'LastPostedBy': 'User A',
'Views': 0,
'Replies': 0,
'Answered': 0,
'Tags': set(["index", "primarykey", "table"]),
'LastPost2DateTime': '12/9/2011 11:36:03 PM'}
item2 = table.new_item(item2_key, item2_range, item2_attrs)
item2.put()
item3_key = 'Amazon S3'
item3_range = 'S3 Thread 1'
item3_attrs = {
'Message': 'S3 Thread 1 message text',
'LastPostedBy': 'User A',
'Views': 0,
'Replies': 0,
'Answered': 0,
'Tags': set(['largeobject', 'multipart upload']),
'LastPostDateTime': '12/9/2011 11:36:03 PM'
}
item3 = table.new_item(item3_key, item3_range, item3_attrs)
item3.put()
# Put an item into the second table
table2_item1_key = uuid.uuid4().hex
table2_item1_attrs = {
'DateTimePosted': '25/1/2011 12:34:56 PM',
'Text': 'I think boto rocks and so does DynamoDB'
}
table2_item1 = table2.new_item(table2_item1_key,
attrs=table2_item1_attrs)
table2_item1.put()
# Try a few queries
items = table.query('Amazon DynamoDB',
{'DynamoDB': 'BEGINS_WITH'})
n = 0
for item in items:
n += 1
assert n == 2
items = table.query('Amazon DynamoDB',
{'DynamoDB': 'BEGINS_WITH'},
request_limit=1, max_results=1)
n = 0
for item in items:
n += 1
assert n == 1
# Try a few scans
items = table.scan()
n = 0
for item in items:
n += 1
assert n == 3
# Test some integer and float attributes
integer_value = 42
float_value = 345.678
item3['IntAttr'] = integer_value
item3['FloatAttr'] = float_value
# Test booleans
item3['TrueBoolean'] = True
item3['FalseBoolean'] = False
# Test some set values
integer_set = set([1,2,3,4,5])
float_set = set([1.1, 2.2, 3.3, 4.4, 5.5])
mixed_set = set([1, 2, 3.3, 4, 5.555])
str_set = set(['foo', 'bar', 'fie', 'baz'])
item3['IntSetAttr'] = integer_set
item3['FloatSetAttr'] = float_set
item3['MixedSetAttr'] = mixed_set
item3['StrSetAttr'] = str_set
item3.put()
# Now do a consistent read
item4 = table.get_item(item3_key, item3_range, consistent_read=True)
assert item4['IntAttr'] == integer_value
assert item4['FloatAttr'] == float_value
assert item4['TrueBoolean'] == True
assert item4['FalseBoolean'] == False
# The values will not necessarily be in the same order as when
# we wrote them to the DB.
for i in item4['IntSetAttr']:
assert i in integer_set
for i in item4['FloatSetAttr']:
assert i in float_set
for i in item4['MixedSetAttr']:
assert i in mixed_set
for i in item4['StrSetAttr']:
assert i in str_set
# Try a batch get
batch_list = c.new_batch_list()
batch_list.add_batch(table, [(item2_key, item2_range),
(item3_key, item3_range)])
response = batch_list.submit()
assert len(response['Responses'][table.name]['Items']) == 2
# Try queries
results = table.query('Amazon DynamoDB',
range_key_condition={'DynamoDB': 'BEGINS_WITH'})
n = 0
for item in results:
n += 1
assert n == 2
# Try to delete the item with the right Expected value
expected = {'Views': 0}
item1.delete(expected_value=expected)
self.assertFalse(table.has_item(item1_key, range_key=item1_range,
consistent_read=True))
# Now delete the remaining items
ret_vals = item2.delete(return_values='ALL_OLD')
# some additional checks here would be useful
assert ret_vals['Attributes'][hash_key_name] == item2_key
assert ret_vals['Attributes'][range_key_name] == item2_range
item3.delete()
table2_item1.delete()
# Now delete the tables
table.delete()
table2.delete()
assert table.status == 'DELETING'
assert table2.status == 'DELETING'
print '--- tests completed ---'
|