aboutsummaryrefslogtreecommitdiffstats
path: root/docs/com/pres/framework/framework.md
blob: 40d5a6a70327a66e363f71667dd680416af73fd1 (plain)
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
312
313
314
315
316
317
318
319
320
321
322
# Functest Framework

created by [Cédric Ollivier](mailto:cedric.ollivier@orange.com)

2017/05/06

Note:

- Functest integrates lots of heterogeneous testcases:
    - python vs bash
    - internal vs external
- it aims to benefit from object programming
    - to define common operations
    - to avoid conditional instructions regarding the testcases
    - to avoid duplicating code
    - to ease the integration of third-party testcases (written in Bash or Python)



## Quick overview


### Functest function calls

- **CI** calls *run_tests.py* (please see [jenkins jobs](https://gerrit.opnfv.org/gerrit/gitweb?p=releng.git;a=tree;f=jjb/functest))
- *run_tests.py* parses *functest/ci/testcases.yaml* to:
    - check which testcase(s) must be run
    - execute the common operations on every testcase (run, push its results to db...)
<!-- .element: class="fragment highlight-red"-->
    - return the right status code to **CI**


### Our target

- limit run_tests.py instructions by defining:
    - the basic testcase attributes
    - all common operations
    - the status codes expected
- avoid duplicating codes between testcases
- ease the development of third-party testcases (aka features)



## class TestCase

base model for single test case


### instance attributes

- project_name (default: 'functest')
- case_name
- criteria
- result
- start_time
- stop_time
- details


### methods

| Method            | Purpose                       |
|-------------------|-------------------------------|
| run(**kwargs)     | run the test case             |
| is_successful()   | interpret the results         |
| get_duration()    | return the duration           |
| push_to_db()      | push the results to the DB    |
| create_snapshot() | save the testing environement |
| clean()           | clean the resources           |


### run(**kwargs)

- the subclasses must override the default implementation which is false on purpose
- the new implementation must set the following attributes to push the results to DB:
    - result
    - start_time
    - stop_time


### class attributes

| Status code        | Returned when       |
|--------------------|---------------------|
| EX_OK              | everything is OK    |
| EX_RUN_ERROR       | run() failed        |
| EX_TESTCASE_FAILED | results are false   |
| EX_PUSH_TO_DB_ERROR| push_to_db() failed |


### run_tests.py

```python
module = importlib.import_module(run_dict['module'])
cls = getattr(module, run_dict['class'])
test_dict = ft_utils.get_dict_by_test(test_name)
test_case = cls(**test_dict)
try:
    kwargs = run_dict['args']
    result = test_case.run(**kwargs)
except KeyError:
    result = test_case.run()
if result == testcase.TestCase.EX_OK:
    if GlobalVariables.REPORT_FLAG:
        test_case.push_to_db()
    result = test_case.is_successful()
```



## Your first test case


### first.py

```python
#!/usr/bin/env python

import time

from functest.core import testcase

class Test(testcase.TestCase):

    def run(self, **kwargs):
        self.start_time = time.time()
        print "Hello World"
        self.result = 100
        self.stop_time = time.time()
        return testcase.TestCase.EX_OK
```


### functest/ci/testcases.yaml

```yaml
case_name: first
project_name: functest
criteria: 100
blocking: true
description: ''
dependencies:
    installer: ''
    scenario: ''
run:
    module: 'first'
    class: 'Test'
```



## class Feature
bases: TestCase

base model for single feature


### methods

| Method            | Purpose                   |
|-------------------|---------------------------|
| run(**kwargs)     | run the feature           |
| execute(**kwargs) | execute the Python method |


### run(**kwargs)

- allows executing any Python method by calling execute()
- sets the following attributes required to push the results to DB:
    - result
    - start_time
    - stop_time
- doesn't fulfill details when pushing the results to the DB.


### execute(**kwargs)

- the subclasses must override the default implementation which is false on purpose
- the new implementation must return 0 if success or anything else if failure.



## Your second test case


### second.py

```python
#!/usr/bin/env python

from functest.core import feature

class Test(feature.Feature):

    def execute(self, **kwargs):
        print "Hello World"
        return 0
```


### functest/ci/testcases.yaml

```yaml
case_name: second
project_name: functest
criteria: 100
blocking: true
description: ''
dependencies:
    installer: ''
    scenario: ''
run:
    module: 'second'
    class: 'Test'
```



## class BashFeature
bases: Feature

class designed to run any bash command


### execute(**kwargs)

execute the cmd passed as arg.



## Your third test case


### functest/ci/testcases.yaml

```
case_name: third
project_name: functest
criteria: 100
blocking: true
description: ''
dependencies:
    installer: ''
    scenario: ''
run:
    module: 'functest.core.feature'
    class: 'BashFeature'
    args:
        cmd: 'echo Hello World; exit 0'
```



## class Suite
bases: TestCase

base model for running unittest.TestSuite


### run(**kwargs)

- allows running any unittest.TestSuite
- sets the following attributes required to push the results to DB:
    - result
    - start_time
    - stop_time
    - details



## Your fourth test case


### fourth.py

```python
#!/usr/bin/env python

import unittest

class TestStringMethods(unittest.TestCase):

    def test_upper(self):
        self.assertEqual('Hello World'.upper(),
                         'HELLO WORLD')
```


### functest/ci/testcases.yaml

```
case_name: fourth
project_name: functest
criteria: 100
blocking: true
description: ''
dependencies:
    installer: ''
    scenario: ''
run:
    module: 'functest.core.unit'
    class: 'Suite'
    args:
        name: 'fourth'
```



## Euphrates


### Next actions

- __to finish VNF abstraction (coverage + pylint)__
- to publish doc API
- to manage criteria as written in testcases.yaml

Please see [Functest Euphrates page](https://wiki.opnfv.org/display/functest/Functest+Euphrates+page) for more details



## Thank You!