It is available in PyPi, so you can install through pip:
pip install sure pip3 install sure
Sure is activated upon importing it, unless the environment variable
SURE_DISABLE_NEW_SYNTAX is set to any non-falsy value. (You could
For test code cleaningness it’s recommended to import sure only once in
__init__.py of your root test package.
Here is an example:
mymodule.py tests/ tests/__init__.py # this is our guy tests/unit/__init__.py tests/unit/test_mymodule_unit1.py tests/functional/__init__.py tests/functional/test_mymodule_functionality.py
That is unless, of course, you want to explicitly import the assertion helpers from sure in every module.
Python version compatibility¶
Sure is continuously tested against python versions 2.7, 3.3, 3.4 and 3.5, but its assertion API is most likely to work anywhere. The only real big difference of sure in cpython and even other implementations such as PyPy is that the monkey-patching only happens in CPython.
You can always get around beautifully with
from sure import expect expect("this".replace("is", "at")).to.equal("that")
where in cpython you could do:
Disabling the monkey patching¶
Just export the
SURE_DISABLE_NEW_SYNTAX environment variable before
running your tests.