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
|
# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Task unittest.
Part of the Chrome build flags optimization.
"""
__author__ = 'yuhenglong@google.com (Yuheng Long)'
import random
import sys
import unittest
import task
from task import Task
# The number of flags be tested.
NUM_FLAGS = 20
# The random build result values used to test get set result method.
RANDOM_BUILD_RESULT = 100
# The random test result values used to test get set result method.
RANDOM_TESTRESULT = 100
class MockFlagSet(object):
"""This class emulates a set of flags.
It returns the flags and hash value, when the FormattedForUse method and the
__hash__ method is called, respectively. These values are initialized when the
MockFlagSet instance is constructed.
"""
def __init__(self, flags=0, hash_value=-1):
self._flags = flags
self._hash_value = hash_value
def __eq__(self, other):
assert isinstance(other, MockFlagSet)
return self._flags == other.FormattedForUse()
def FormattedForUse(self):
return self._flags
def __hash__(self):
return self._hash_value
def GetHash(self):
return self._hash_value
class TaskTest(unittest.TestCase):
"""This class test the Task class."""
def testEqual(self):
"""Test the equal method of the task.
Two tasks are equal if and only if their encapsulated flag_sets are equal.
"""
flags = range(NUM_FLAGS)
# Two tasks having the same flag set should be equivalent.
flag_sets = [MockFlagSet(flag) for flag in flags]
for flag_set in flag_sets:
assert Task(flag_set) == Task(flag_set)
# Two tasks having different flag set should be different.
for flag_set in flag_sets:
test_task = Task(flag_set)
other_flag_sets = [flags for flags in flag_sets if flags != flag_set]
for flag_set1 in other_flag_sets:
assert test_task != Task(flag_set1)
def testHash(self):
"""Test the hash method of the task.
Two tasks are equal if and only if their encapsulated flag_sets are equal.
"""
# Random identifier that is not relevant in this test.
identifier = random.randint(-sys.maxint - 1, -1)
flag_sets = [MockFlagSet(identifier, value) for value in range(NUM_FLAGS)]
for flag_set in flag_sets:
# The hash of a task is the same as the hash of its flag set.
hash_task = Task(flag_set)
hash_value = hash(hash_task)
assert hash_value == flag_set.GetHash()
# The hash of a task does not change.
assert hash_value == hash(hash_task)
def testGetIdentifier(self):
"""Test the get identifier method of the task.
The get identifier method should returns the flag set in the build stage.
"""
flag_sets = [MockFlagSet(flag) for flag in range(NUM_FLAGS)]
for flag_set in flag_sets:
identifier_task = Task(flag_set)
identifier = identifier_task.GetIdentifier(task.BUILD_STAGE)
# The task formats the flag set into a string.
assert identifier == str(flag_set.FormattedForUse())
def testGetSetResult(self):
"""Test the get and set result methods of the task.
The get result method should return the same results as were set.
"""
flag_sets = [MockFlagSet(flag) for flag in range(NUM_FLAGS)]
for flag_set in flag_sets:
result_task = Task(flag_set)
# The get result method should return the same results as were set, in
# build stage. Currently, the build result is a 5-element tuple containing
# the checksum of the result image, the performance cost of the build, the
# compilation image, the length of the build, and the length of the text
# section of the build.
result = tuple([random.randint(0, RANDOM_BUILD_RESULT) for _ in range(5)])
result_task.SetResult(task.BUILD_STAGE, result)
assert result == result_task.GetResult(task.BUILD_STAGE)
# The checksum is the identifier of the test stage.
identifier = result_task.GetIdentifier(task.TEST_STAGE)
# The first element of the result tuple is the checksum.
assert identifier == result[0]
# The get result method should return the same results as were set, in
# test stage.
random_test_result = random.randint(0, RANDOM_TESTRESULT)
result_task.SetResult(task.TEST_STAGE, random_test_result)
test_result = result_task.GetResult(task.TEST_STAGE)
assert test_result == random_test_result
def testDone(self):
"""Test the done methods of the task.
The done method should return false is the task has not perform and return
true after the task is finished.
"""
flags = range(NUM_FLAGS)
flag_sets = [MockFlagSet(flag) for flag in flags]
for flag_set in flag_sets:
work_task = Task(flag_set)
# The task has not been compiled nor tested.
assert not work_task.Done(task.TEST_STAGE)
assert not work_task.Done(task.BUILD_STAGE)
# After the task has been compiled, it should indicate finished in BUILD
# stage.
result = tuple([random.randint(0, RANDOM_BUILD_RESULT) for _ in range(5)])
work_task.SetResult(task.BUILD_STAGE, result)
assert not work_task.Done(task.TEST_STAGE)
assert work_task.Done(task.BUILD_STAGE)
# After the task has been tested, it should indicate finished in TEST
# stage.
work_task.SetResult(task.TEST_STAGE, random.randint(0, RANDOM_TESTRESULT))
assert work_task.Done(task.TEST_STAGE)
assert work_task.Done(task.BUILD_STAGE)
if __name__ == '__main__':
unittest.main()
|
