Locust Test Example: Records

An example of a Locust Test showing interaction with Appian Records - example_locust_test_records.py.

This test has 3 locust tasks defined and it will execute all three for each spawned locust user for the duration of the test.

• Task 1 will visit a random record type list.

• Task 2 will visit a random record instance for a random record type and return the SAIL form.

• Task 3 will visit a random record type list and get the SAIL form for it.

@task takes an optional weight argument that can be used to specify the task’s execution ratio. For example: If there are two tasks with weights 3 and 6 then second task will have twice the chance of being picked as first task.

# Locust tests executing against Appian with a TaskSet should set AppianTaskSet as their base class to have access to various functionality.
# This class handles creation of basic objects like self.appian (appian client) and actions like `login` and `logout`

class RecordsTaskSet(AppianTaskSet):

    def on_start(self):
        super().on_start()
        # get_all() retrieves all record types, record instances and associated metadata
        self.all_records = self.appian.records.get_all()

        # could be either view or list:
        if "endpoint_type" not in CONFIG:    # could be either view or list:
            logger.error("endpoint_type not found in config.json")
            sys.exit(1)

        self.endpoint_type = CONFIG["endpoint_type"]

        # view - to view records from opaqueId
        # list - to list all the record types from url_stub
        if "view" not in self.endpoint_type and "list" not in self.endpoint_type:
            logger.error(
                "This behavior is not defined for the provided endpoint type. Supported types are : view and list")
            sys.exit(1)

    def on_stop(self):
        logger.info("logging out")
        super().on_stop()

    @task(X)
    def visit_random_record_type_list(self):
        if "list" in self.endpoint_type:
            self.appian.records.visit_record_type()

    @task(X)
    def visit_random_record_and_get_form(self):
        if "view" in self.endpoint_type:
            record_type = random.choice((
                self.appian.records._get_random_record_type(), ""))
            self.appian.records.visit_record_instance_and_get_form(
                record_type=record_type)

    @task(X)
    # this task visits a random record type list and return the SAIL form.
    def visit_random_record_type_list_and_get_form(self):
        if "list" in self.endpoint_type:
            self.appian.records.visit_record_type_and_get_form()

• By calling super().on_start() inside the on_start() function of the locust test you get access to the appian client which allows you to call self.appian.records, self.appian.news, self.appian.actions etc. These properties allow us to access specific API’s to for those Appian objects.

• Functions like XYZ_and_get_form() access the actual appian object and return its SAIL form as an instance of uiform. This class contains methods that helps you interact with the UI.