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How to use resolve_fixture_function method in Pytest

Best Python code snippet using pytest

fixtures.py

Source:fixtures.py

...778            self.argname,779            self.scope,780            self.baseid,781        )782def resolve_fixture_function(fixturedef, request):783    """Gets the actual callable that can be called to obtain the fixture value, dealing with unittest-specific784    instances and bound methods.785    """786    fixturefunc = fixturedef.func787    if fixturedef.unittest:788        if request.instance is not None:789            # bind the unbound method to the TestCase instance790            fixturefunc = fixturedef.func.__get__(request.instance)791    else:792        # the fixture function needs to be bound to the actual793        # request.instance so that code working with "fixturedef" behaves794        # as expected.795        if request.instance is not None:796            fixturefunc = getimfunc(fixturedef.func)797            if fixturefunc != fixturedef.func:798                fixturefunc = fixturefunc.__get__(request.instance)799    return fixturefunc800def pytest_fixture_setup(fixturedef, request):801    """ Execution of fixture setup. """802    kwargs = {}803    for argname in fixturedef.argnames:804        fixdef = request._get_active_fixturedef(argname)805        result, arg_cache_key, exc = fixdef.cached_result806        request._check_scope(argname, request.scope, fixdef.scope)807        kwargs[argname] = result808    fixturefunc = resolve_fixture_function(fixturedef, request)809    my_cache_key = request.param_index810    try:811        result = call_fixture_func(fixturefunc, request, kwargs)812    except TEST_OUTCOME:813        fixturedef.cached_result = (None, my_cache_key, sys.exc_info())814        raise815    fixturedef.cached_result = (result, my_cache_key, None)816    return result817def _ensure_immutable_ids(ids):818    if ids is None:819        return820    if callable(ids):821        return ids822    return tuple(ids)...

plugin.py

Source:plugin.py

...861            kwargs[argname] = result862        return kwargs863    @staticmethod864    def _pytest_fixturedef_exec(fixturedef: FixtureDef[Any], request: SubRequest, kwargs: Dict[str, Any]):865        fixturefunc = resolve_fixture_function(fixturedef, request)866        my_cache_key = fixturedef.cache_key(request)867        try:868            result = call_fixture_func(fixturefunc, request, kwargs)869        except TEST_OUTCOME:870            exc_info = sys.exc_info()871            assert exc_info[0] is not None872            fixturedef.cached_result = (None, my_cache_key, exc_info)873            raise874        fixturedef.cached_result = (result, my_cache_key, None)875        return result876    @pytest.hookimpl(tryfirst=True)877    def pytest_fixture_setup(self, fixturedef: FixtureDef[Any], request: SubRequest):878        if fixturedef.argname != 'serial':879            return...

provider.py

Source:provider.py

...280                assert fixdef.cached_result is not None281                result, arg_cache_key, exc = fixdef.cached_result282                request._check_scope(argname, request.scope, fixdef.scope)283                kwargs[argname] = result284            fixturefunc = resolve_fixture_function(fixturedef, request)285            # Use the DataProvider instance as the cache key.286            my_cache_key = fixturedef.cache_key(request)287            try:288                provider_data = call_fixture_func(fixturefunc, request, kwargs)289            except TEST_OUTCOME:290                fixturedef.cached_result = (None, my_cache_key, sys.exc_info())291                raise292            # Instantiate BaseProvider subclass here, and store as the fixture result.293            from cfme.utils.providers import get_crud294            result = get_crud(provider_data.key)295            request.param = result296            yield result297            # Store the cached_result after we have yielded to other pytest_fixture_setup methods.298            fixturedef.cached_result = (result, my_cache_key, None)...

conftest.py

Source:conftest.py

...172#     #     result, arg_cache_key, exc = fixdef.cached_result173#     #     request._check_scope(argname, request.scope, fixdef.scope)174#     #     kwargs[argname] = result175#176#     fixturefunc = resolve_fixture_function(fixturedef, request)177#     my_cache_key = fixturedef.cache_key(request)178#     try:179#         result = call_fixture_func(fixturefunc, request, kwargs)180#     except TEST_OUTCOME:181#         exc_info = sys.exc_info()182#         assert exc_info[0] is not None183#         fixturedef.cached_result = (None, my_cache_key, exc_info)184#         raise185#     fixturedef.cached_result = (result, my_cache_key, None)186#     return result187# æ³¨åèªå®ä¹åæ° cmdopt å°éç½®å¯¹è±¡188def pytest_addoption(parser):189    parser.addoption("--xb",190                     action="store",...

Pytest Tutorial

Looking for an in-depth tutorial around pytest? LambdaTest covers the detailed pytest tutorial that has everything related to the pytest, from setting up the pytest framework to automation testing. Delve deeper into pytest testing by exploring advanced use cases like parallel testing, pytest fixtures, parameterization, executing multiple test cases from a single file, and more.

Chapters

What is pytest
Pytest installation: Want to start pytest from scratch? See how to install and configure pytest for Python automation testing.
Run first test with pytest framework: Follow this step-by-step tutorial to write and run your first pytest script.
Parallel testing with pytest: A hands-on guide to parallel testing with pytest to improve the scalability of your test automation.
Generate pytest reports: Reports make it easier to understand the results of pytest-based test runs. Learn how to generate pytest reports.
Pytest Parameterized tests: Create and run your pytest scripts while avoiding code duplication and increasing test coverage with parameterization.
Pytest Fixtures: Check out how to implement pytest fixtures for your end-to-end testing needs.
Execute Multiple Test Cases: Explore different scenarios for running multiple test cases in pytest from a single file.
Stop Test Suite after N Test Failures: See how to stop your test suite after n test failures in pytest using the @pytest.mark.incremental decorator and maxfail command-line option.