Frozen date: freeze datetime.now at a known value for testing
Project description
Frozendate suspends time while your tests run.
Frozendate mocks datetime.datetime and datetime.date to provide known times when testing.
Usage
import frozendate with frozendate.freeze(1999, 1, 1): party_like_its_1999() # freeze relative freezes time relative to the current date... with freeze_relative(days=-1): assert all_my_troubles_seemed_so_far_away() with freeze(1999, 12, 31): # ...or relative to the previous freeze with freeze_relative(days=1): print "happy new year!"
Normally time doesn’t actually stop when you use freeze – it just starts again from the fixed point you specify, eg:
>>> import frozendate >>> import datetime >>> with frozendate.freeze(2000, 1, 1): ... print datetime.now().replace(microsecond=0) ... time.sleep(1) ... print datetime.now().replace(microsecond=0) ... 2000-01-01 00:00:00 2000-01-01 00:00:01
But you can always get the same value back if you pass hard=True:
>>> with frozendate.freeze(2000, 1, 1, hard=True): ... print datetime.now().replace(microsecond=0) ... time.sleep(1) ... print datetime.now().replace(microsecond=0) ... 2000-01-01 00:00:00 2000-01-01 00:00:00
Instead of a context manager there are also regular patch and unpatch functions. These are useful in test case setup/teardown methods:
def setUp(self): frozendate.patch(2000, 1, 1) def tearDown(self): frozendate.unpatch()
When you call freeze or patch, it freezes time for all modules found in sys.modules. Sometimes you want to restrict to a few named modules:
frozendate.freeze(modules=['mypackage.mymodule'])
Or patch everything, but exclude a few modules that need the real datetime still:
frozendate.freeze(dontpatch=['somemodule', 'someotherpackage'])
CHANGELOG
Version 0.1.1
Fix for ImportErrors when used with six
Version 0.1
Initial release
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
File details
Details for the file frozendate-0.1.1.tar.gz
.
File metadata
- Download URL: frozendate-0.1.1.tar.gz
- Upload date:
- Size: 5.0 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | 5d011e057a5d2c66896dfe99fe27832372c76d76f3074c214345323777b9ca9e |
|
MD5 | 3c08d7189d8def0da64546feca0f0cf3 |
|
BLAKE2b-256 | e8cc9ec1dbe1560d4e2aa9cd0a698247341d8fb209e734827498ea2972a8ce9e |