A modern Python testing framework
Project description
Ward is a Python testing framework with a focus on productivity and readability. It gives you the tools you need to write well-documented and scalable tests.
Features
See the full set of features in the documentation.
Descriptive test names: describe what your tests do using strings, not function names.
@test("simple addition") # you can use markdown in these descriptions!
def _():
assert 1 + 2 == 3 # you can use plain assert statements!
Modular test dependencies: manage test setup/teardown code using fixtures that rely on Python's import system, not name matching.
@fixture
def user():
return User(name="darren")
@test("the user is called darren")
def _(u=user):
assert u.name == "darren"
Support for asyncio: define your tests and fixtures with async def
and call asynchronous code within them.
@fixture
async def user():
u = await create_user()
return await u.login()
@test("the logged in user has a last session date")
async def _(user=user):
last_session = await get_last_session_date(user.id)
assert is_recent(last_session, get_last_session_date)
Powerful test selection: limit your test run not only by matching test names/descriptions, but also on the code contained in the body of the test.
ward --search "Database.get_all_users"
Or use tag expressions for more powerful filtering.
ward --tags "(unit or integration) and not slow"
Parameterised testing: write a test once, and run it multiple times with different inputs by writing it in a loop.
for lhs, rhs, res in [
(1, 1, 2),
(2, 3, 5),
]:
@test("simple addition")
def _(left=lhs, right=rhs, result=res):
assert left + right == result
Cross platform: Tested on Mac OS, Linux, and Windows.
Speedy: Ward's suite of ~320 tests run in less than half a second on my machine.
Zero config: Sensible defaults mean running ward
with no arguments is enough to get started. Can be configured using pyproject.toml
or the command line if required.
Extendable: Ward has a plugin system built with pluggy, the same framework used by pytest.
Colourful, human readable output: quickly pinpoint and fix issues with detailed output for failing tests.
Getting Started
Have a look at the documentation!
How to Contribute
Contributions are very welcome and encouraged!
See the contributing guide for information on how you can take part in the development of Ward.
Project details
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