It helps to use fixtures in pytest.mark.parametrize

Last update: Dec 24, 2022

Overview

pytest-lazy-fixture

Use your fixtures in @pytest.mark.parametrize.

Installation

pip install pytest-lazy-fixture

Usage

import pytest

@pytest.fixture(params=[1, 2])
def one(request):
    return request.param

@pytest.mark.parametrize('arg1,arg2', [
    ('val1', pytest.lazy_fixture('one')),
])
def test_func(arg1, arg2):
    assert arg2 in [1, 2]

Also you can use it as a parameter in @pytest.fixture:

import pytest

@pytest.fixture(params=[
    pytest.lazy_fixture('one'),
    pytest.lazy_fixture('two')
])
def some(request):
    return request.param

@pytest.fixture
def one():
    return 1

@pytest.fixture
def two():
    return 2

def test_func(some):
    assert some in [1, 2]

Please see tests for more examples.

Contributing

Contributions are very welcome. Tests can be run with tox.

License

Distributed under the terms of the MIT license, pytest-lazy-fixture is free and open source software

Issues

If you encounter any problems, please file an issue along with a detailed description.

Comments

lazy-fixture breaks all the fixtures with autouse=True
In my current project I have some fixtures which they use autouse=True. eg:

def setup(autouse=True): self.var = 15

After installing pytest-lazy-fixture, my tests can't find the self.var variable. If I remove the autouse=True and pass the fixture to my tests all work fine.

Any ideas?
opened by lefterisnik 10

Lazy fixtures not working at all

I had a few lazy fixtures loaded in some of my tests like this:

@pytest.mark.parametrize('user_group', [
        pytest.lazy_fixture('user_group_national_manager'),
        pytest.lazy_fixture('user_group_regional_manager'),	
        pytest.lazy_fixture('user_group_lwi_staff')	
    ])

Now, when the tests are being loaded it fails collecting them with:

/usr/local/lib/python3.6/dist-packages/pluggy/hooks.py:258: in __call__
    return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/manager.py:67: in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/manager.py:61: in <lambda>
    firstresult=hook.spec_opts.get('firstresult'),
/usr/local/lib/python3.6/dist-packages/_pytest/python.py:242: in pytest_pycollect_makeitem
    res = list(collector._genfunctions(name, obj))
/usr/local/lib/python3.6/dist-packages/_pytest/python.py:432: in _genfunctions
    self.ihook.pytest_generate_tests(metafunc=metafunc)
/usr/local/lib/python3.6/dist-packages/pluggy/hooks.py:258: in __call__
    return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/manager.py:67: in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
/usr/local/lib/python3.6/dist-packages/pluggy/manager.py:61: in <lambda>
    firstresult=hook.spec_opts.get('firstresult'),
/usr/local/lib/python3.6/dist-packages/pytest_lazyfixture.py:70: in pytest_generate_tests
    normalize_metafunc_calls(metafunc, 'funcargs')
/usr/local/lib/python3.6/dist-packages/pytest_lazyfixture.py:77: in normalize_metafunc_calls
    calls = normalize_call(callspec, metafunc, valtype, used_keys)
/usr/local/lib/python3.6/dist-packages/pytest_lazyfixture.py:101: in normalize_call
    _, fixturenames_closure, arg2fixturedefs = fm.getfixtureclosure([val.name], metafunc.definition.parent)
E   ValueError: not enough values to unpack (expected 3, got 2)

If I changed the code to use tuples or arrays, the tests run but the lazy fixture is not loaded making the tests fail:

@pytest.mark.parametrize('user_group', [
        (pytest.lazy_fixture('user_group_national_manager'),),
        (pytest.lazy_fixture('user_group_regional_manager'),),
        (pytest.lazy_fixture('user_group_lwi_staff'),)
    ])

    assert response.status_code == 200
E   assert 403 == 200
E    +  where 403 = <HttpResponseForbidden status_code=403, "text/html">.status_code

This was working properly before the upgrade to 0.5.0

I tried to use the format specified in the README with no luck. I had to remove the lazy fixture and use a different approach in the meantime.

Any idea of what's broken?

FYI, each fixture just creates a Group and adds the user to the created group. I assert the groups the user belongs to and it belongs to none so the fixture is not loaded when the test runs.

opened by brian-barba-hernandez 8

Possible to expand the fixture return value in parametrize?
I would like to parametrize a test with the return value of a fixture.

Example:

@pytest.fixture def links(browser): // assume broser was a fixture return browser.find_by_tag('a') @pytest.mark.parametrize("link", links) // here expand the links fixture return value def test_func(link): // test that link here

Is this possible with pytest-lazy-fixture? (or maybe even pytest itself?) Or might it be a nice feature?
opened by schtibe 7

lazy-fixture-0.5.2: function fixture runs before module fixture

pytest-5.1.3 lazy-fixture-0.5.2

Example:

import pytest
from pytest_lazyfixture import lazy_fixture

@pytest.fixture(scope="module")
def module_fixture():
    print('using module fixture')

@pytest.fixture
def fixture1():
    print("using fixture1")

@pytest.fixture
def fixture2():
    print("using fixture2")

@pytest.mark.usefixtures("module_fixture")
@pytest.mark.parametrize("fixt", [lazy_fixture("fixture1"), lazy_fixture("fixture2")])
def test_test(fixt):
    pass

output

smoke/test_test.py::test_test[fixt0] using fixture1
using module fixture
PASSED
smoke/test_test.py::test_test[fixt1] using fixture2
PASSED

There is strange order - fixture1, module fixture, fixture2

Same example without using lazy_fixture:

@pytest.mark.usefixtures("module_fixture")
def test_test1(fixture1):
    pass


@pytest.mark.usefixtures("module_fixture")
def test_test2(fixture2):
    pass

output:

smoke/test_test.py::test_test1 using module fixture
using fixture1
PASSED
smoke/test_test.py::test_test2 using fixture2
PASSED

Executing order looks as designed - module fixture, fixture1, fixture2

opened by lenvk 6

Broken by pytest 5.3.3

I haven't had time to investigate why, but it seems that the pytest 5.3.3 release broke pytest-lazy-fixture:

Running the basic example from the README

import pytest

@pytest.fixture(params=[1, 2])
def one(request):
    return request.param

@pytest.mark.parametrize('arg1,arg2', [
    ('val1', pytest.lazy_fixture('one')),
])
def test_func(arg1, arg2):
    assert arg2 in [1, 2]

results in the following error:

$ pytest test_lazy_fixture.py 
============================= test session starts ==============================
platform linux -- Python 3.6.9, pytest-5.3.3, py-1.7.0, pluggy-0.12.0
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/home/yannick/.hypothesis/examples')
rootdir: /home/yannick
plugins: xonsh-0.9.6, lazy-fixture-0.6.2, hypothesis-4.34.0
collected 2 items                                                              

test_lazy_fixture.py EE                                                  [100%]

==================================== ERRORS ====================================
__________________ ERROR at setup of test_func[val1-arg20-1] ___________________
file /home/yannick/test_lazy_fixture.py, line 7
  @pytest.mark.parametrize('arg1,arg2', [
      ('val1', pytest.lazy_fixture('one')),
  ])
  def test_func(arg1, arg2):
file /home/yannick/test_lazy_fixture.py, line 3
  @pytest.fixture(params=[1, 2])
  def one(request):
file /home/yannick/.local/lib/python3.6/site-packages/_pytest/fixtures.py, line 297
  def get_direct_param_fixture_func(request):
E       recursive dependency involving fixture 'one' detected
>       available fixtures: cache, capfd, capfdbinary, caplog, capsys, capsysbinary, doctest_namespace, monkeypatch, one, pytestconfig, record_property, record_testsuite_property, record_xml_attribute, recwarn, tmp_path, tmp_path_factory, tmpdir, tmpdir_factory
>       use 'pytest --fixtures [testpath]' for help on them.

/home/yannick/.local/lib/python3.6/site-packages/_pytest/fixtures.py:297
__________________ ERROR at setup of test_func[val1-arg20-2] ___________________
file /home/yannick/test_lazy_fixture.py, line 7
  @pytest.mark.parametrize('arg1,arg2', [
      ('val1', pytest.lazy_fixture('one')),
  ])
  def test_func(arg1, arg2):
file /home/yannick/test_lazy_fixture.py, line 3
  @pytest.fixture(params=[1, 2])
  def one(request):
file /home/yannick/.local/lib/python3.6/site-packages/_pytest/fixtures.py, line 297
  def get_direct_param_fixture_func(request):
E       recursive dependency involving fixture 'one' detected
>       available fixtures: cache, capfd, capfdbinary, caplog, capsys, capsysbinary, doctest_namespace, monkeypatch, one, pytestconfig, record_property, record_testsuite_property, record_xml_attribute, recwarn, tmp_path, tmp_path_factory, tmpdir, tmpdir_factory
>       use 'pytest --fixtures [testpath]' for help on them.

/home/yannick/.local/lib/python3.6/site-packages/_pytest/fixtures.py:297
============================== 2 errors in 0.02s ===============================

If I have time, I'll have a closer look and report back on my findings.

opened by YannickJadoul 5

Use fixture names to generate test ids?

First off, thank you for writing this plugin, it fixes problems that have been bugging me for years.

Given the following tests:

import pytest
from pytest_lazyfixture import lazy_fixture

@pytest.fixture()
def foo():
    return "foo"

@pytest.fixture(params=['spam', 'eggs'])
def bar(request):
    return f"bar-{request.param}"

@pytest.mark.parametrize("data", [lazy_fixture("foo"),
                                  lazy_fixture("bar")])
def test_the_thing(data):
    assert False

Pytest generates the following test names:

> py.test test_lazy.py --collect-only
===================== test session starts =====================
platform darwin -- Python 3.7.6, pytest-5.3.2, py-1.8.1, pluggy-0.13.1
rootdir: /tmp
plugins: xdist-1.26.1, flask-0.14.0, lazy-fixture-0.6.2, forked-1.1.3
collected 3 items                                                                                                            
<Module test_lazy.py>
  <Function test_the_thing[data0]>
  <Function test_the_thing[data1-spam]>
  <Function test_the_thing[data1-eggs]>

Would it be possible to use the fixture name to generate these ids? It would be great to end up with these names instead:

test_the_thing[foo]
test_the_thing[bar-spam]
test_the_thing[bar-eggs]

opened by avirshup 4

0.5.2 problem with pytest-asyncio
I made a PR to upgrade pytest-lazy-fixture 0.4.2 to 0.5.2.

PR: https://github.com/youknowone/ring/pull/106

CI: https://travis-ci.org/youknowone/ring/jobs/518829292

It worked with 0.4.2 but doesn't work with 0.5.2 anymore. Any idea?

The errors are refering about event loop

E RuntimeError: Task <Task pending coro=<test_complicated_key() running at /Users/youknowone/Projects/ring/tests/_test_func_asyncio.py:183> cb=[_run_until_complete_cb() at ~/.pyenv/versions/3.7.0/lib/python3.7/asyncio/base_events.py:150]> got Future <Future pending cb=[BaseSelectorEventLoop._sock_connect_done(22)()]> attached to a different loop

Because upgrading pytest-lazy-fixture triggers the problem regardless of pytest-asyncio version, I guessed this may be a regression in pytest-lazy-fixture. Please let me know if the change in pytest-lazy-fixture is not a problem. Then I should change my code to fit in new version.
opened by youknowone 4
indirect fixtures

Hi, you asked me about some example for the issue I tried to resolve by the pull request from yestrday. So I added test to test_lazyfixture.py. It is basicly about indirect lazy_fixtures in test generator, which can do some modificition (in examle it is list modificition, but in real life it is usualy some db modificition etc...). If you run tests, the new test will fail on TypeError: 'LazyFixture' object does not support indexing. Beacause LazyFixture is never inicialized. If you uncommented lines 15-24 in pytest_lazyfixture.py, the test will pass.

opened by dburton90 4

Fixture with numpy array as value fails on 0.6.0

This seems related to https://github.com/pytest-dev/pytest/issues/5946 (which is already fixed on pytest master), but it is still failing with the latest lazy-fixtures (pinning to 0.5.2 fixes it).

Test script (variation of the one in https://github.com/pytest-dev/pytest/issues/5946):

import numpy as np
import pytest


@pytest.mark.parametrize(
    'value',
    [
        np.arange(10, dtype=np.int64),
        np.arange(10, dtype=np.int32),
    ]
)
def test_bug(value):
    assert isinstance(value, np.ndarray)

and this fails with:

$ pytest test_pytest_bug.py -v
==================================================================== test session starts =====================================================================
platform linux -- Python 3.7.3, pytest-5.2.2.dev23+ga20880cca, py-1.8.0, pluggy-0.12.0 -- /home/joris/miniconda3/envs/arrow-dev/bin/python
cachedir: .pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/home/joris/scipy/.hypothesis/examples')
rootdir: /home/joris/scipy
plugins: hypothesis-4.24.2, lazy-fixture-0.6.0
collected 2 items                                                                                                                                            

test_pytest_bug.py::test_bug[value0] ERROR                                                                                                             [ 50%]
test_pytest_bug.py::test_bug[value1] ERROR                                                                                                             [100%]

=========================================================================== ERRORS ===========================================================================
_____________________________________________________________ ERROR at setup of test_bug[value0] _____________________________________________________________

request = <FixtureRequest for <Function test_bug[value0]>>

    def fill(request):
        item = request._pyfuncitem
        fixturenames = getattr(item, "fixturenames", None)
        if fixturenames is None:
            fixturenames = request.fixturenames
    
        if hasattr(item, 'callspec'):
>           for param, val in sorted_by_dependency(item.callspec.params, fixturenames):

../miniconda3/envs/arrow-dev/lib/python3.7/site-packages/pytest_lazyfixture.py:33: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

params = {'value': array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])}, fixturenames = ['value']

    def sorted_by_dependency(params, fixturenames):
        free_fm = []
        non_free_fm = defaultdict(list)
    
        for key in _sorted_argnames(params, fixturenames):
            val = params.get(key)
    
>           if not val or not is_lazy_fixture(val) or val.name not in params:
E           ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

../miniconda3/envs/arrow-dev/lib/python3.7/site-packages/pytest_lazyfixture.py:130: ValueError
_____________________________________________________________ ERROR at setup of test_bug[value1] _____________________________________________________________

request = <FixtureRequest for <Function test_bug[value1]>>

    def fill(request):
        item = request._pyfuncitem
        fixturenames = getattr(item, "fixturenames", None)
        if fixturenames is None:
            fixturenames = request.fixturenames
    
        if hasattr(item, 'callspec'):
>           for param, val in sorted_by_dependency(item.callspec.params, fixturenames):

../miniconda3/envs/arrow-dev/lib/python3.7/site-packages/pytest_lazyfixture.py:33: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

params = {'value': array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], dtype=int32)}, fixturenames = ['value']

    def sorted_by_dependency(params, fixturenames):
        free_fm = []
        non_free_fm = defaultdict(list)
    
        for key in _sorted_argnames(params, fixturenames):
            val = params.get(key)
    
>           if not val or not is_lazy_fixture(val) or val.name not in params:
E           ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

../miniconda3/envs/arrow-dev/lib/python3.7/site-packages/pytest_lazyfixture.py:130: ValueError
====================================================================== 2 error in 0.09s ======================================================================

opened by jorisvandenbossche 3

Make LazyFixture iterable
This does work now:

@pytest.mark.parametrize('arg1', [ pytest.lazy_fixture('needs_db') ]) @pytest.mark.django_db def test_some(arg1): assert ...

But it's not quite what I need. The fixture needs_db returns a list and I'd like to parametrize test_some with that list:

@pytest.mark.parametrize('arg1', pytest.lazy_fixture('needs_db')) @pytest.mark.django_db def test_some(arg1): assert ...

This fails: TypeError: 'LazyFixture' object is not iterable

Is it possible to support this use case? I'm not familiar with pytest's internals. :/
opened by michael-k 3

Using fixture that returns a list of parameters, is it possible?

Here's my fixture:

@fixture
def devices(scope='module');
    with connect(get_all_devices()) as connected_devices:
        yield connected_devices

Here's how I want to use it:

@parametrize('device', devices)
def test_routine(device):
    device.do_something()
    assert device.is_ok()

What I'm doing instead:

def test_routine(subtests, devices):
    for index, device in enumerate(devices):
        with subtests.test(device, i=index):
            device.do_something()
            assert device.is_ok()

Is this possible with lazy fixture or any other method?

opened by bbk-riact 0

Pytest discovery changes test names when using multiple lazy fixtures

I have some test cases in which I need more than one lazy fixture (one for each parameter).

The problem is that the pytest discovery is creating different test names in every run, which creates a problem in the interaction with tools like VScode. I don't know if it's a pytest issue or pytest-lazy-fixtures one.

Here's an example of a test that uses two lazy fixtures:

import pytest
from pytest import fixture
from pytest_lazyfixture import lazy_fixture


@fixture(params=[1, 2, 3])
def all_numbers(request):
    return request.param


@fixture(params=["a", "b", "c"])
def all_letters(request):
    return request.param


@pytest.mark.parametrize(
    "number,letter",
    [lazy_fixture(["all_numbers", "all_letters"])]
)
def test_multiple_lazy(number, letter):
    print(number, letter)

This is one pytest collect run:

 pytest --collect-only
=================================================================== test session starts ====================================================================
platform darwin -- Python 3.11.0, pytest-7.2.0, pluggy-0.13.1
rootdir: /Users/fraimondo/dev/scratch/pytest_order
plugins: typeguard-2.13.3, lazy-fixture-0.6.3
collected 9 items                                                                                                                                          

<Module test_multiple_lazy.py>
  <Function test_multiple_lazy[all_numbers-all_letters-a-1]>
  <Function test_multiple_lazy[all_numbers-all_letters-a-2]>
  <Function test_multiple_lazy[all_numbers-all_letters-a-3]>
  <Function test_multiple_lazy[all_numbers-all_letters-b-1]>
  <Function test_multiple_lazy[all_numbers-all_letters-b-2]>
  <Function test_multiple_lazy[all_numbers-all_letters-b-3]>
  <Function test_multiple_lazy[all_numbers-all_letters-c-1]>
  <Function test_multiple_lazy[all_numbers-all_letters-c-2]>
  <Function test_multiple_lazy[all_numbers-all_letters-c-3]>

This is another one:

pytest --collect-only
=================================================================== test session starts ====================================================================
platform darwin -- Python 3.11.0, pytest-7.2.0, pluggy-0.13.1
rootdir: /Users/fraimondo/dev/scratch/pytest_order
plugins: typeguard-2.13.3, lazy-fixture-0.6.3
collected 9 items                                                                                                                                          

<Module test_multiple_lazy.py>
  <Function test_multiple_lazy[all_numbers-all_letters-1-a]>
  <Function test_multiple_lazy[all_numbers-all_letters-1-b]>
  <Function test_multiple_lazy[all_numbers-all_letters-1-c]>
  <Function test_multiple_lazy[all_numbers-all_letters-2-a]>
  <Function test_multiple_lazy[all_numbers-all_letters-2-b]>
  <Function test_multiple_lazy[all_numbers-all_letters-2-c]>
  <Function test_multiple_lazy[all_numbers-all_letters-3-a]>
  <Function test_multiple_lazy[all_numbers-all_letters-3-b]>
  <Function test_multiple_lazy[all_numbers-all_letters-3-c]>

opened by fraimondo 0

TypeError: 'LazyFixture' object is not subscriptable

Hi there,

I was trying to do the following code which results in a Exception being thrown. I was wondering if someone has found a way to use the returned object from a lazy_fixture in the parametrize values

import pytest
from pytest_lazyfixture import lazy_fixture

@pytest.fixture
def one():
    return {
        "foo1": "bar",
        "foo2": "baz",
    }

@pytest.mark.parametrize(
    'attr1',
    [
        (lazy_fixture('one')["foo1"], ),
    ]
)
def test_func(attr1):
    assert attr1 == "bar"

============================================================================================================= test session starts =============================================================================================================
platform linux -- Python 3.10.5, pytest-7.1.3, pluggy-1.0.0
rootdir: /home/users/frank/workspace/pseudopiper, configfile: pytest.ini
plugins: xdist-2.5.0, cov-4.0.0, lazy-fixture-0.6.3, clarity-1.0.1, icdiff-0.6, forked-1.4.0
collected 0 items / 1 error

=================================================================================================================== ERRORS ====================================================================================================================
___________________________________________________________________________________________________ ERROR collecting tests/test_foobar2.py ____________________________________________________________________________________________________
tests/test_foobar2.py:14: in <module>
    (lazy_fixture('one')["foo1"], ),
E   TypeError: 'LazyFixture' object is not subscriptable
=========================================================================================================== short test summary info ===========================================================================================================
ERROR tests/test_foobar2.py - TypeError: 'LazyFixture' object is not subscriptable
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
============================================================================================================== 1 error in 0.21s ===============================================================================================================

opened by flazzarini 0

TypeError: 'LazyFixture' object is not iterable
Hi there,

I am running into issues with using a fixture, that loads a list of parameters that I want to use to parametrize tests. I am not sure, whether that is something, that can be done with your package and I just can't figure it out, or whether that would be a new feature.

Here is a example on what I want to achieve:

import pytest @pytest.fixture() def one(tmp_path): return list(str(tmp_path)) @pytest.mark.parametrize("char", pytest.lazy_fixture('one')) def test_func(char): assert char.isascii()

Do you have an idea on how to get my code running?

Thanks a lot!
opened by ChristianF88 3

pytest-lazy-fixture breaks with Traits in factoryboy 3.2.0: 'Maybe' object has no attribute 'call'

After updating factoryboy to 3.2.0 my tests using lazy_fixture with fixtures that use Trait (in result using Maybe) raise AttributeError: 'Maybe' object has no attribute 'call'.

python_version = "3.8"
django = "~=3.0"
factory-boy = "~=3.2.0"
pytest = "~=5.4.3"
pytest-factoryboy = "~=2.1.0"
pytest-lazy-fixture = "~=0.6.3"

Attached is a full traceback from failed test case.

request = <FixtureRequest for <Function test_success>>

    def fill(request):
        item = request._pyfuncitem
        fixturenames = getattr(item, "fixturenames", None)
        if fixturenames is None:
            fixturenames = request.fixturenames
    
        if hasattr(item, 'callspec'):
            for param, val in sorted_by_dependency(item.callspec.params, fixturenames):
                if val is not None and is_lazy_fixture(val):
                    item.callspec.params[param] = request.getfixturevalue(val.name)
                elif param not in item.funcargs:
                    item.funcargs[param] = request.getfixturevalue(param)
    
>       _fillfixtures()

/home/django/venv/lib/python3.8/site-packages/pytest_lazyfixture.py:39: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/home/django/venv/lib/python3.8/site-packages/pytest_factoryboy/fixture.py:188: in model_fixture
    factoryboy_request.evaluate(request)
/home/django/venv/lib/python3.8/site-packages/pytest_factoryboy/plugin.py:83: in evaluate
    self.execute(request, function, deferred)
/home/django/venv/lib/python3.8/site-packages/pytest_factoryboy/plugin.py:65: in execute
    self.results[model][attr] = function(request)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

request = <SubRequest 'user' for <Function test_success>>

    def deferred(request):
>       declaration.call(instance, step, context)
E       AttributeError: 'Maybe' object has no attribute 'call'

/home/django/venv/lib/python3.8/site-packages/pytest_factoryboy/fixture.py:294: AttributeError

Seems like it could be a problem in pytest_factoryboy itself but I've seen it raised only for tests using lazy_fixture.

opened by radekwlsk 3

mypy can't discover pytest.lazy_fixture under pytest 6
If you have a test suite that uses pytest.lazy_fixture, and you're using pytest 6.0.0+, and you run mypy over your test suite, mypy complains with the error:

test/test_something.py:42: error: Module has no attribute "lazy_fixture"

The test suite itself passes without any problems; it is only the type checking of mypy that fails.

This problem does not exist on pytest 5.4.3 or earlier.

I presume something has changed in the plugin registration process that prevents mypy from seeing the lazy_fixture attribute.
opened by freakboy3742 2

Releases(0.6.0)

0.6.0(Oct 13, 2019)

Source code(tar.gz)
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v0.5.2(Mar 16, 2019)

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v0.4.0(Nov 30, 2017)
Add order of fixtures instantiating

Support pytest >= 3.3.0

Source code(tar.gz)
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v0.3.0(Feb 4, 2017)

Source code(tar.gz)
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v0.3-beta.0(Jan 31, 2017)

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Owner

Marsel Zaripov

GitHub Repository

It helps to use fixtures in pytest.mark.parametrize

Related tags

Overview

pytest-lazy-fixture

Installation

Usage

Contributing

License

Issues

Comments

Releases(0.6.0)

0.6.0(Oct 13, 2019)

v0.5.2(Mar 16, 2019)

v0.4.0(Nov 30, 2017)

v0.3.0(Feb 4, 2017)

v0.3-beta.0(Jan 31, 2017)

Owner

Marsel Zaripov

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