Tests are mandatory for packages, modules, web apps. If you are lazy to write unit tests but wanted to see the coverage for web app here is the short cut.
Lets consider a Python web app uses Flask, runserver.py runs the development web server. Normally server is started by the command python runserver.py. Now use coverage run runserver.py.
coverage python package will run the python program til program exits or user halts. Once web app testing is complete via browser, run coverage report -m this will produce big list of lines covered in modules during execution.
One more handy feature is coverage html. This produces html file containing python code highlighting executed line and other. All the html files is produced inside hmtlcov directory.
Coverage documentation.
Sample Output
➜ hacknight git:(issue-249) ✗ coverage run --source=hacknight runserver.py
/Library/Python/2.7/site-packages/flask_cache/__init__.py:100: UserWarning: Flask-Cache: CACHE_TYPE is set to null, caching is effectively disabled.
warnings.warn("Flask-Cache: CACHE_TYPE is set to null, "
* Running on http://0.0.0.0:8100/
* Restarting with reloader
/Library/Python/2.7/site-packages/flask_cache/__init__.py:100: UserWarning: Flask-Cache: CACHE_TYPE is set to null, caching is effectively disabled.
warnings.warn("Flask-Cache: CACHE_TYPE is set to null, "
127.0.0.1 - - [13/Sep/2013 23:08:31] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [13/Sep/2013 23:08:34] "GET /kracekumar HTTP/1.1" 200 -
127.0.0.1 - - [13/Sep/2013 23:08:36] "GET /kracekumar/jsfoo-hackday HTTP/1.1" 200 -
^C%
➜ hacknight git:(issue-249) ✗ coverage report -m
Name Stmts Miss Cover Missing
------------------------------------------------------------
hacknight/__init__ 28 0 100%
hacknight/_version 3 0 100%
hacknight/forms/__init__ 0 0 100%
hacknight/forms/comment 12 0 100%
hacknight/forms/event 42 5 88% 58-59, 62-72
hacknight/forms/participant 12 0 100%
hacknight/forms/profile 6 0 100%
hacknight/forms/project 9 0 100%
hacknight/forms/sponsor 9 0 100%
hacknight/forms/venue 16 0 100%
hacknight/models/__init__ 10 0 100%
hacknight/models/_profile 21 21 0% 3-37
hacknight/models/comment 61 18 70% 34-35, 41, 71-72, 78-91, 95, 98
hacknight/models/event 110 43 61% 45, 48-51, 84, 87-88, 91-93, 96-97, 100-109, 112-133
hacknight/models/participant 31 5 84% 34-37, 41
hacknight/models/project 72 31 57% 42-46, 50, 55, 58, 63, 68-85, 101-105
hacknight/models/sponsor 17 2 88% 25-26
hacknight/models/user 21 5 76% 20, 24, 28, 32, 35
hacknight/models/venue 21 2 90% 26-27
hacknight/models/vote 38 16 58% 17-18, 21-30, 33-36, 39
hacknight/tests/__init__ 0 0 100%
hacknight/tests/test_data 3 3 0% 3-7
hacknight/tests/test_models 17 17 0% 4-93
hacknight/views/__init__ 8 0 100%
hacknight/views/event 244 192 21% 28-33, 41-56, 70-87, 97-116, 131, 140-145, 155-182, 191-222, 231-260, 269-276, 285-301, 310-313, 325-344, 354-373
hacknight/views/index 36 23 36% 13-15, 20, 25, 30, 35, 40, 45-53, 58-65
hacknight/views/login 28 12 57% 15, 21-22, 28-30, 36-37, 42-45
hacknight/views/profile 36 22 39% 17-23, 30-47
hacknight/views/project 323 256 21% 30-49, 61-73, 85-108, 118, 127-240, 252-259, 270-277, 288-295, 306-315, 327-336, 346-357, 369-378, 387-397, 406-416, 426-440, 451-464, 475-501, 514
hacknight/views/sponsor 45 26 42% 18-30, 42-53, 65-68, 81
hacknight/views/venue 47 29 38% 15-16, 22, 28-38, 45-56, 64-66
hacknight/views/workflow 84 30 64% 42-46, 52, 57, 62, 67, 72, 77, 80, 114-119, 127-128, 136, 144, 152, 160, 168, 176, 182, 188, 194, 200, 206, 209
------------------------------------------------------------
TOTAL 1410 758 46%
See also
- Python Typing Koans
- Model Field - Django ORM Working - Part 2
- Structure - Django ORM Working - Part 1
- jut - render jupyter notebook in the terminal
- Five reasons to use Py.test
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