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How to use update_execution_data method in SeleniumBase

Best Python code snippet using SeleniumBase

test_server.py

Source:test_server.py

...482			{'worker_id': '', 'token': token},483			{'exit_status': 'success', 'token': token},484			{'time_terminated': 'Tue, 02 Apr 2013 10:29:13 GMT', 'token': token}485		]486		def update_execution_data(update):487			return patch({'update_execution_data': update}, self.entry,488				self.cred.worker_key, 'tasks', task_ids[2])489		for update in good_updates:490			resp = update_execution_data(update)491			self.assertEqual(resp.status_code, requests.codes.ok)492		for update in bad_updates:493			resp = update_execution_data(update)494			self.assertEqual(resp.status_code, requests.codes.unprocessable_entity)495class TestCancellation(unittest.TestCase):496	"""497	Verifies that the behavior of task cancellation is as expected.498	"""499	def __init__(self, entry, db, cred, *args, **kwargs):500		super().__init__(*args, **kwargs)501		self.entry = entry502		self.db = db503		self.cred = cred504	def _add_continuations(self, child_ids, parent_id):505		return post(child_ids, self.entry, self.cred.provider_key, 'tasks', parent_id,506			'add_continuations')507	def test_cancellation_depth_1(self):...

validation.py

Source:validation.py

1# -*- coding: utf-8 -*-2"""3banyan.server.validation4------------------------5Defines custom validators for resource schema.6"""7from flask import abort, g, current_app as app8from eve.methods.common import serialize9import eve.io.mongo10from banyan.server.state import legal_provider_transitions, legal_worker_transitions11from banyan.server.constants import *12from banyan.server.mongo_common import find_by_id13"""14One thing I dislike about Eve is that the configuration accepts a single global validator. This has15the following disadvantages:161. The single custom validator may become complex and hard to maintain.172. We cannot easily "overload" custom validation rules by giving them different meanings when used18   for different resources.19"""20class ValidatorBase(eve.io.mongo.Validator):21	"""22	Subclass of ``eve.io.mongo.Validator`` with support for the custom validation rules used by23	Banyan. This validator should not be used directly, because it does not support virtual24	resources. Use ``Validator`` instead.25	Support for virtual resources can't be added here, because ``BulkUpdateValidator`` derives26	from this class.27	"""28	def __init__(self, schema, resource=None, allow_unknown=False,29		transparent_schema_rules=False):30		"""31		The last two arguments are retained despite the fact that they are unused, in order32		to maintain compatibility with Eve's validator interface.33		"""34		self.db = app.data.driver.db35		"""36		``transparent_schema_rules`` is set to ``True``, so that the additional rules for37		virtual resources will not cause any issues.38		"""39		super().__init__(40			schema=schema,41			resource=resource,42			allow_unknown=False,43			transparent_schema_rules=True44		)45		"""46		This is a hack that is necessary in order to get the base class to pass the47		``resource`` parameter to the constructors of the validators for nested schema and48		virtual resources.49		"""50		self._Validator__config['resource'] = self.resource51	def validate(self, document, schema=None, update=False, context=None):52		"""53		Called after each POST request, e.g. when a new task is created. Also called each54		time a subfield needs to be validated. In this case, ``context`` will be set to the55		parent field's value, and ``update`` may be `True`.56		"""57		"""58		As described above, ``context`` is non-null iff we are validating a subfield. Since59		we don't have any special constraints to enforce for subfields, we just perform the60		default validation.61		"""62		if context:63			return super().validate(document, schema, update, context)64		# See https://github.com/nicolaiarocci/eve/issues/796 for more information about65		# this.66		assert not update, "Expected 'validate_update' to be called for updates " \67			"instead of 'validate' with 'update=True'."68		if 'state' in document and document['state'] not in ['inactive', 'available']:69			self._error('state', "Tasks can only be created in the 'inactive' and "70				"'available' states.")71			return False72		# We call the parent's `validate` function now, so that we can ensure that all73		# ObjectIDs for continuations are valid.74		if not super().validate(document, schema, update, context):75			return False76		for func in [self.validate_continuations, self.validate_worker_id]:77			if not func(document):78				return False79		return True80	def validate_continuation(self, child):81		state = child['state']82		if state != 'inactive':83			self._error('continuations', "Continuation '{}' should be 'inactive', but "84				"is in the '{}' state.".format(child['_id'], state))85			return False86		return True87	def validate_continuations(self, document):88		if 'continuations' not in document:89			return True90		children = [self.db['tasks'].find_one({'_id': _id}) for _id in91			document['continuations']]92		# It's not practical to check for cyclic dependencies, but we do perform a basic93		# sanity check.94		if '_id' in document:95			if document['_id'] in children:96				self._error('continuations', "Task cannot have itself as a "97					"continuation.")98				return False99		for child in children:100			if not self.validate_continuation(child):101				return False102		return True103	def validate_worker_id(self, document):104		if 'worker_id' not in document:105			return True106		worker = find_by_id('users', document['worker_id'], self.db, {'role': True})107		if worker['role'] != 'worker':108			self._error('worker_id', "User with given id is a {}, not a {}.".format(109				worker['role'], 'worker'))110			return False111		return True112	def validate_execution_data_token(self, document, original_document):113		ex_data = document['update_execution_data']114		if 'token' not in ex_data:115			abort(401, description="Workers must provide the execution data token in "116				"order to update the task status.")117		ex_data_id = original_document['execution_data_id']118		orig_ex_data = find_by_id('execution_info', ex_data_id, self.db, {'token': True})119		if ex_data['token'] != orig_ex_data['token']:120			abort(403, description="Provided execution data token does not match.")121	def ensure_worker_has_permission(self, perm):122		assert g.user_info is not None123		if perm not in g.user_info['permissions']:124			abort(403, description="Worker lacks '{}' permission.".format(perm))125	def validate_state_change(self, final_state, update, required_fields):126		def fail():127			self._error('state', "State cannot be changed to '{}' without setting "128				"fields '{}' using 'update_execution_data'.".format(final_state,129				required_fields))130			return False131		if 'update_execution_data' not in update:132			return fail()133		updated_fields = set(update['update_execution_data'].keys())134		if len(updated_fields & required_fields) != len(required_fields):135			return fail()136		return True137	def validate_update(self, document, _id, original_document=None):138		"""139		Called after each PATCH request, e.g. when a task is updated in some way.140		"""141		# The authorization token and corresponding user are set by the authenticator.142		assert g.user is not None143		role           = g.user['role']144		ex_data_update = 'update_execution_data' in document145		"""146		Ensure that if a worker is updating a task that is has already claimed, then the147		execution data token that is has provided is correct.148		"""149		if ex_data_update and ('state' not in document or document['state'] != 'running'):150			self.validate_execution_data_token(document, original_document)151		if 'state' in document:152			si = original_document['state']153			sf = document['state']154			legal_trans = legal_provider_transitions if role == 'provider' else \155				legal_worker_transitions156			if sf not in legal_trans[si]:157				self._error('state', "User with role '{}' is not authorized to make "158					"state transition from '{}' to '{}'.".format(role, si, sf))159				return False160			if sf == 'running':161				self.ensure_worker_has_permission('claim')162				if not self.validate_state_change(sf, document,163						required_fields={'worker_id'}):164					return False165			elif sf == 'terminated' or (sf == 'cancelled' and role == 'worker'):166				self.ensure_worker_has_permission('report')167				if not self.validate_state_change(sf, document,168						required_fields={'exit_status', 'time_terminated'}):169					return False170		elif ex_data_update:171			self.ensure_worker_has_permission('report')172			keys         = set(document['update_execution_data'].keys())173			special_keys = {'worker_id', 'exit_status', 'time_terminated'}174			common_keys  = keys & special_keys175			if len(common_keys) != 0:176				self._error('update_execution_data', "The fields {} cannot be "177					"changed independently of the task state.".178					format(common_keys))179				return False180		"""181		We call the parent's `validate_update` function now, so that we can ensure that all182		ObjectIds for continuations are valid.183		"""184		if not super().validate_update(document, _id, original_document):185			return False186		return self.validate_continuations(document)187	def _validate_empty(self, empty, field, value):188		"""189		Extends the 'empty' rule so that it can also be applied to lists. Taken from Nicola190		Iarocci's answer here_.191		.. _here: http://stackoverflow.com/a/23708110192		"""193		super()._validate_empty(empty, field, value)194		if isinstance(field, list) and not empty and len(value) == 0:195			self._error(field, "list cannot be empty")196	def _validate_allows_duplicates(self, allows_duplicates, field, value):197		if not isinstance(value, list):198			self._error(field, "Value must be a list.")199			return False200		if not allows_duplicates and len(set(value)) != len(value):201			self._error(field, "Field contains duplicates.")202			return False203		return True204	def _validate_createonly(self, createonly, field, value):205		"""206		A field that is marked ``createonly`` may only be initialized if no value is already207		associated with it for the given document.208		"""209		if not createonly or not self._original_document:210			return True211		if field in self._original_document:212			self._error(field, "Cannot modify field '{}' once it has been set.".213				format(field))214			return False215		return True216	def _validate_creatable_iff_inactive(self, createonly, field, value):217		"""218		Like ``createonly``, but with the additional restriction that the task must also be219		in the ``inactive`` state in order for the field to be set.220		"""221		if not createonly or not self._original_document:222			return True223		if self._original_document['state'] != 'inactive':224			self._error(field, "Cannot set field '{}' when task is no longer in "225				"'inactive' state.".format(field))226			return False227		return self._validate_createonly(createonly, field, value)228	def _validate_mutable_iff_inactive(self, mutable, field, value):229		"""230		Like ``creatable_iff_inactive``, but allows mutation instead of only initialization.231		"""232		if not mutable or not self._original_document or \233			self._original_document['state'] == 'inactive':234			return True235		if field in self._original_document and value != self._original_document[field]:236			self._error(field, "Cannot change value of field '{}' when task is no "237				"longer in 'inactive' state.".format(field))238			return False239		return True240class BulkUpdateValidator(ValidatorBase):241	"""242	A validator specialized for validating virtual resources.243	"""244	def __init__(self, schema, resource=None, allow_unknown=False,245		transparent_schema_rules=False):246		"""247		The last two arguments are retained despite the fact that they are unused, in order248		to maintain compatibility with Eve's validator interface.249		"""250		super().__init__(schema, resource)251	def validate_update_format(self, updates):252		"""253		Ensures that the JSON array of updates is in the correct format, without validating254		the content of any update. This function is factored out of ``validate_update`` so255		that derived classes can perform intermedidate validation before calling256		``validate_update_content``.257		"""258		if not isinstance(updates, list):259			self._error('updates', "Updates string must be a JSON array.")260			return False261		if len(updates) > max_update_list_length:262			self._error('updates', "Updates list can have at most {} elements.".263				format(max_update_list_length))264			return False265		virtual_resource_keys = ['targets', 'values']266		for i, update in enumerate(updates):267			if not isinstance(update, dict):268				self._error('update {}'.format(i), "Array element is not a dict.")269				continue270			cur_issues = []271			for key in virtual_resource_keys:272				if key not in update:273					cur_issues.append("Missing field '{}'.".format(key))274			invalid_keys = update.keys() - virtual_resource_keys275			if len(invalid_keys) != 0:276				cur_issues.append("Invalid keys '{}'.".format(invalid_keys))277			targets, values = update['targets'], update['values']278			if not isinstance(targets, list):279				cur_issues.append("'targets' field must be a list.")280			if not isinstance(values, list) and not isinstance(values, dict):281				cur_issues.append("'values' field must be a list or a dict.")282			if len(cur_issues) > 0:283				self._error('update {}'.format(i), str(cur_issues))284		if len(self._errors) != 0:285			return False286		for i, update in enumerate(updates):287			# TODO: fill in default fields for the schema.288			# TODO: fill in default values for list elements, if specified.289			"""290			This deserializes some values that require special handlers, such as291			ObjectIds and datetime objects. If this becomes a bottleneck, then write a292			custom function that only modifies the fields that are needed.293			"""294			updates[i] = serialize(update, schema=self.schema)295		return True296	def validate_update_content(self, updates, original_ids=None, original_documents=None):297		assert (original_ids and original_documents) or \298			(not original_ids) and (not original_documents)299		for i, update in enumerate(updates):300			if original_ids:301				"""302				To process rules like ``createonly``, we need the previous values of303				the fields.304				"""305				super().validate_update(updates[i], original_ids[i],306					original_documents[i])307			else:308				super().validate(updates[i])309		return len(self._errors) == 0310	def validate_update(self, updates, original_ids=None, original_documents=None):311		"""312		All requests made to virtual resources are considered to be updates, since according313		to our design, virtual resources can only be used to modify fields, not update them.314		The fields ``original_ids`` and ``original_documents`` only need to be provided if315		the documents being altered by the updates have validation rules that require316		knowledge of the previous values of fields (e.g. ``createonly``).317		Args:318			updates: The parsed ``dict`` of updates.319			original_ids: An array of the ids corresponding to the documents in320				``original_documents`` (optional).321			original_documents: An array of the original documents corresponding to the322				IDs in ``updates['targets']`` (optional).323		"""324		if not self.validate_update_format(updates):325			return False326		return self.validate_update_content(updates, original_ids, original_documents)327class Validator(ValidatorBase):328	"""329	Adds support for virtual resources to ``ValidatorBase``.330	"""331	def __init__(self, schema, resource, allow_unknown=False, transparent_schema_rules=False):332		"""333		The last two arguments are retained despite the fact that they are unused, in order334		to maintain compatibility with Eve's validator interface.335		"""336		self.db = app.data.driver.db337		self.virtual_validators = {}338		# We use a local import here to avoid cyclic dependencies.339		from schema import virtual_resources340		for parent_res, virtuals in virtual_resources.items():341			if parent_res != resource:342				continue343			for virtual_res, v_schema in virtuals.items():344				if 'validator' not in v_schema:345					validator = BulkUpdateValidator346				else:347					validator = v_schema['validator']348				self.virtual_validators[virtual_res] = validator(349					schema=v_schema['schema'], resource=resource)350		super().__init__(schema, resource)351	def _validate_virtual_resource(self, virtual_resource, field, value):352		if not virtual_resource:353			return True354		assert self._id is not None355		assert isinstance(value, list) or isinstance(value, dict)356		dummy = [{'targets': [self._id], 'values': value}]357		validator = self.virtual_validators[field]358		if not validator.validate_update(dummy):359			for k, v in validator.errors.items():360				self._error(k, v)361			return False...

event_hooks.py

Source:event_hooks.py

...155			and we release all of the continuations.156			"""157			for x in cont_list:158				continuations.release(x, db)159def update_execution_data(updates, original):160	"""161	If a task is set to 'running' *for the first time*, then the following changes are made:162	- The attempt count is incremented.163	- A new instance of execution data is inserted into `execution_info`,164	  along with the fields specified in `update_execution_data`.165	If a task is set to 'terminated' and its attempt count is less than its maximum attempt166	count, then the following changes are made:167	- The attempt count is incremented.168	- The state of the task is set to `available`.169	- A new instance of execution data is inserted into `execution_info`.170	Otherwise, the changes given in `update_execution_data` are applied independently.171	"""172	db = app.data.driver.db173	id_ = original[config.ID_FIELD]...

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