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How to use _deactivate_fixture method in Slash

Best Python code snippet using slash

fixture_store.py

Source:fixture_store.py

...172        for s, active_fixtures in self._active_fixtures_by_scope.items():173            if s <= scope:174                for active_fixture in reversed(list(active_fixtures.values())):175                    with handling_exceptions(swallow=True):176                        self._deactivate_fixture(active_fixture.fixture)177                assert not active_fixtures178    def ensure_known_parametrization(self, parametrization):179        if parametrization.info.id not in self._fixtures_by_id:180            self._fixtures_by_id[parametrization.info.id] = parametrization181    def add_fixtures_from_dict(self, d):182        for thing in d.values():183            fixture_info = getattr(thing, '__slash_fixture__', None)184            if fixture_info is None:185                continue186            assert self.get_current_namespace() is self._namespaces[-1]187            fixture_info = self.add_fixture(thing).__slash_fixture__188            self.get_current_namespace().add_name(189                fixture_info.name, fixture_info.id)190    def add_fixture(self, fixture_func):191        fixture_info = fixture_func.__slash_fixture__192        existing_fixture = self._fixtures_by_id.get(fixture_info.id)193        if existing_fixture is not None:194            return existing_fixture.fixture_func195        if is_valid_test_name(fixture_info.name):196            raise InvalidFixtureName('Invalid fixture name: {.name}'.format(fixture_info))197        fixture_object = Fixture(self, fixture_func)198        current_namespace = self._namespaces[-1]199        current_namespace.add_name(fixture_info.name, fixture_info.id)200        self.register_fixture_id(fixture_object)201        return fixture_func202    def register_fixture_id(self, f):203        if f.info.id in self._fixtures_by_id:204            return205        self._fixtures_by_id[f.info.id] = f206        self._unresolved_fixture_ids.add(f.info.id)207    def get_fixture_by_name(self, name, namespace=None):208        if namespace is None:209            namespace = self._namespaces[-1]210        return namespace.get_fixture_by_name(name)211    def get_fixture_by_argument(self, arg):212        return self.get_fixture_by_name(get_real_fixture_name_from_argument(arg))213    def get_fixture_by_id(self, fixture_id):214        return self._fixtures_by_id[fixture_id]215    def get_fixture_dict(self, fixture_names, namespace=None, get_values=True, skip_names=frozenset()):216        returned = {}217        if namespace is None:218            namespace = self.get_current_namespace()219        fixtures_set = self._get_fixtures_set(fixture_names, skip_names=skip_names, namespace=namespace)220        for required_name, fixture in fixtures_set:221            if get_values:222                fixture = self.get_fixture_value(fixture, name=required_name)223            if required_name in fixture_names or [element for element in fixture_names if required_name in element]:224                returned[required_name] = fixture225        return returned226    def _get_fixtures_set(self, fixture_names, namespace=None, skip_names=frozenset(), fixtures_set=None):227        if fixtures_set is None:228            fixtures_set = OrderedSet()229        for element in fixture_names:230            if isinstance(element, tuple):231                required_name, real_name = element232            else:233                required_name = real_name = element234            if required_name in skip_names:235                continue236            if element == 'this':237                continue238            fixture = namespace.get_fixture_by_name(real_name)239            fixtures_set.add((required_name, fixture))240            if hasattr(fixture.fixture_func, "__extrafixtures__"):241                self._get_fixtures_set(fixture.fixture_func.__extrafixtures__, skip_names=skip_names,242                                       namespace=namespace, fixtures_set=fixtures_set)243        return fixtures_set244    def get_fixture_value(self, fixture, name=None):245        if name is None:246            name = fixture.info.name247        value = self._compute_fixture_value(name, fixture)248        return value249    def get_value(self, variation, parameter_or_fixture):250        fixture_id = parameter_or_fixture.info.id251        fixtureobj = self.get_fixture_by_id(parameter_or_fixture.info.id)252        if isinstance(fixtureobj, Parametrization):253            value = parameter_or_fixture.get_value_by_index(variation.param_value_indices[fixture_id])254        else:255            value = self.get_fixture_value(parameter_or_fixture)256        return value257    def iter_parametrization_variations(self, fixture_ids=(), funcs=(), methods=()):258        if self._unresolved_fixture_ids:259            raise UnresolvedFixtureStore()260        variation_factory = VariationFactory(self)261        for fixture_id in fixture_ids:262            variation_factory.add_needed_fixture_id(fixture_id)263        for func in funcs:264            variation_factory.add_needed_fixtures_from_function(func)265        for method in methods:266            variation_factory.add_needed_fixtures_from_method(method)267        return variation_factory.iter_variations()268    def _compute_fixture_value(self, name, fixture, relative_name=None):269        if relative_name is None:270            relative_name = name271        assert not fixture.is_parameter()272        if fixture.info.id in self._computing:273            raise CyclicFixtureDependency(274                'Fixture {!r} is a part of a dependency cycle!'.format(name))275        active_fixture = self.get_active_fixture(fixture)276        if active_fixture is not None:277            if self._is_active_fixture_valid(fixture):278                _logger.trace("Fixture {} did not change", fixture)279                return active_fixture.value280            else:281                _logger.trace("Fixture {} no longer valid. Recomputing", fixture)282                self._deactivate_fixture(active_fixture.fixture)283        self._computing.add(fixture.info.id)284        try:285            fixture_value = self._call_fixture(fixture, relative_name=relative_name)286        except:287            exc_info = sys.exc_info()288            self._deactivate_fixture(fixture)289            reraise(*exc_info)290        finally:291            self._computing.discard(fixture.info.id)292        return fixture_value293    def _is_active_fixture_valid(self, fixture):294        assert fixture.info.id in self._active_fixture_dependencies, "Fixture dependencies not updated"295        new_dependencies = self._compute_fixture_dependencies(fixture)296        return new_dependencies.issubset(self._active_fixture_dependencies[fixture.info.id])297    def _compute_fixture_dependencies(self, fixture):298        param_indices = self._compute_all_needed_parametrization_ids(fixture)299        if not param_indices:300            return frozenset()301        assert ctx.session is not None, "Dependency computation requires an active session"302        variation = ctx.session.variations.get_current_variation()303        assert variation is not None, "Dependency computation requires current variation"304        return frozenset((param_id, variation.param_value_indices[param_id])305                         for param_id in self._compute_all_needed_parametrization_ids(fixture))306    def _call_fixture(self, fixture, relative_name):307        assert relative_name308        active_fixture = ActiveFixture(fixture)309        kwargs = {}310        if fixture.keyword_arguments is None:311            raise UnresolvedFixtureStore('Fixture {} is unresolved!'.format(fixture.info.name))312        for required_name, needed_fixture in fixture.keyword_arguments.items():313            if needed_fixture.is_parameter():314                continue315            kwargs[required_name] = self._compute_fixture_value(316                required_name, needed_fixture,317                relative_name='{} -> {}'.format(relative_name, required_name))318        assert fixture.info.id not in self._active_fixtures_by_scope[fixture.info.scope]319        _logger.trace("Activating fixture {}...", fixture)320        self._active_fixtures_by_scope[fixture.info.scope][fixture.info.id] = active_fixture321        self._active_fixture_dependencies[fixture.info.id] = self._compute_fixture_dependencies(fixture)322        prev_context_fixture = slash_context.fixture323        slash_context.fixture = active_fixture324        try:325            returned = active_fixture.value = fixture.get_value(kwargs, active_fixture)326        finally:327            slash_context.fixture = prev_context_fixture328        _logger.trace(' -- {} = {!r}', relative_name, returned)329        return returned330    def _deactivate_fixture(self, fixture):331        # in most cases it will be the last active fixture in its scope332        active = self._active_fixtures_by_scope[fixture.info.scope].pop(fixture.info.id, None)333        self._active_fixture_dependencies.pop(fixture.info.id, None)334        if active is not None:335            active.do_cleanups()336    def resolve(self):337        while self._unresolved_fixture_ids:338            fixture = self._fixtures_by_id[self._unresolved_fixture_ids.pop()]...

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