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test_dependencies.py
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import json
import math
class VertexTester:
def __init__(self, test_name):
self.neighbors = {}
self.test_name = test_name
self.visited = False
def add_neighbor(self, neighbor_test):
neighbor_name = neighbor_test.test_name
self.neighbors[neighbor_name] = neighbor_test
def get_connected_component(self, tests_in_component):
tests_in_component.append(self.test_name)
self.visited = True
for neighbor_name in self.neighbors:
neighbor_vertex = self.neighbors[neighbor_name]
if not neighbor_vertex.visited:
tests_in_component = neighbor_vertex.get_connected_component(tests_in_component)
return tests_in_component
class GraphTester:
"""A graph representing the tests in Demisto and whether they use mutual integrations.
Attributes:
test_vertices (list): A list of vertices (of type TestVertex), each representing a test.
clusters (list): A list of test clusters, where the tests of each cluster need to be run sequentially.
"""
def __init__(self):
self.test_vertices = {}
self.clusters = []
def add_test_graph_vertices(self, tests_data):
for test_playbook_record in tests_data:
playbook_name_in_record = test_playbook_record.get("playbookID")
if playbook_name_in_record and playbook_name_in_record not in self.test_vertices:
new_test_vertex = VertexTester(playbook_name_in_record)
self.test_vertices[playbook_name_in_record] = new_test_vertex
def add_test_graph_neighbors(self, tests_data):
integration_to_tests_mapping = get_integration_to_tests_mapping(tests_data)
for integration_name in integration_to_tests_mapping:
tests_using_integration = integration_to_tests_mapping[integration_name]
for i in range(len(tests_using_integration)): # pylint: disable=C0200
first_test_name = tests_using_integration[i]
first_test_vertex = self.test_vertices[first_test_name]
for j in range(i + 1, len(tests_using_integration)):
second_test_name = tests_using_integration[j]
second_test_vertex = self.test_vertices[second_test_name]
first_test_vertex.add_neighbor(second_test_vertex)
second_test_vertex.add_neighbor(first_test_vertex)
def get_clusters(self):
clusters = []
for test_name in self.test_vertices:
test_vertex = self.test_vertices[test_name]
if not test_vertex.visited:
test_connected_component = test_vertex.get_connected_component([])
clusters.append(test_connected_component)
self.clusters = clusters
def build_tests_graph_from_conf_json(self, tests_file_path, dependent_tests):
with open(tests_file_path, 'r') as myfile:
conf_json_string = myfile.read()
tests_data = json.loads(conf_json_string)["tests"]
dependent_tests_data = [test_record for test_record in tests_data
if test_record.get("playbookID") in dependent_tests]
self.add_test_graph_vertices(dependent_tests_data)
self.add_test_graph_neighbors(dependent_tests_data)
self.get_clusters()
def get_integration_to_tests_mapping(tests_data):
integration_to_tests_mapping: dict = {}
for test_playbook_record in tests_data:
record_playbook_name = test_playbook_record.get("playbookID", None)
record_integrations = get_used_integrations(test_playbook_record)
for integration_name in record_integrations:
if integration_name in integration_to_tests_mapping:
if record_playbook_name not in integration_to_tests_mapping[integration_name]:
integration_to_tests_mapping[integration_name].append(record_playbook_name)
else:
integration_to_tests_mapping[integration_name] = [record_playbook_name]
return integration_to_tests_mapping
def get_used_integrations(test_playbook_record):
tested_integrations = test_playbook_record.get("integrations", [])
if isinstance(tested_integrations, list):
return tested_integrations
else:
return [tested_integrations]
def get_dependent_and_independent_integrations(tests_file_path):
with open(tests_file_path, 'r') as myfile:
conf_json_string = myfile.read()
conf_json_obj = json.loads(conf_json_string)
integration_tests_count: dict = {}
for test_record in conf_json_obj["tests"]:
integrations_used = get_used_integrations(test_record)
for integration_name in integrations_used:
if integration_name in integration_tests_count:
integration_tests_count[integration_name] += 1
else:
integration_tests_count[integration_name] = 1
dependent_integrations = [integration_name for integration_name in integration_tests_count
if integration_tests_count[integration_name] > 1]
independent_integrations = [integration_name for integration_name in integration_tests_count
if integration_tests_count[integration_name] <= 1]
return dependent_integrations, independent_integrations
def get_test_dependencies(tests_file_path):
dependent_integrations = get_dependent_and_independent_integrations(tests_file_path)[0]
with open(tests_file_path, 'r') as myfile:
conf_json_string = myfile.read()
conf_json_obj = json.loads(conf_json_string)
dependent_tests = []
all_tests = []
for test_record in conf_json_obj["tests"]:
integrations_used = get_used_integrations(test_record)
playbook = test_record.get("playbookID", None)
if playbook not in all_tests:
all_tests.append(playbook)
dependent_integrations_used = [integration for integration in integrations_used
if integration in dependent_integrations]
if dependent_integrations_used and playbook not in dependent_tests:
dependent_tests.append(playbook)
independent_tests = [test for test in all_tests if test not in dependent_tests]
return dependent_tests, independent_tests, all_tests
def get_dependent_integrations_clusters_data(tests_file_path, dependent_tests):
tests_graph = GraphTester()
tests_graph.build_tests_graph_from_conf_json(tests_file_path, dependent_tests)
return tests_graph.clusters
def get_tests_allocation_for_threads(number_of_instances, tests_file_path):
dependent_tests, independent_tests, all_tests = get_test_dependencies(tests_file_path)
dependent_tests_clusters = get_dependent_integrations_clusters_data(tests_file_path, dependent_tests)
dependent_tests_clusters.sort(key=len, reverse=True) # Sort the clusters from biggest to smallest
tests_allocation: list = []
number_of_tests_left = len(all_tests)
while number_of_tests_left > 0:
allocations_left = number_of_instances - len(tests_allocation)
desired_tests_per_allocation = math.ceil(number_of_tests_left / allocations_left) # We prefer an equal division of tests.
current_allocation = []
# If we have one allocation left, add all tests to it and finish
if allocations_left == 1:
for tests_cluster in dependent_tests_clusters:
current_allocation.extend(tests_cluster)
for test_name in independent_tests:
current_allocation.append(test_name)
tests_allocation.append(current_allocation)
break
if len(dependent_tests_clusters) > 0:
# Even if the first cluster is bigger than the desired amount, we have to add it to the allocation.
# If we don't, it will not be added to any allocation.
first_cluster = dependent_tests_clusters.pop(0)
first_cluster_size = len(first_cluster)
current_allocation.extend(first_cluster)
number_of_tests_left -= first_cluster_size
if len(current_allocation) >= desired_tests_per_allocation:
tests_allocation.append(current_allocation)
continue
clusters_added = 0
for cluster in dependent_tests_clusters:
cluster_size = len(cluster)
if len(current_allocation) + cluster_size > desired_tests_per_allocation:
# Will fill the quota from the independent test lists.
break
current_allocation.extend(cluster)
number_of_tests_left -= cluster_size
clusters_added += 1
del dependent_tests_clusters[:clusters_added]
num_of_tests_to_add = int(desired_tests_per_allocation - len(current_allocation))
independent_tests_to_add = independent_tests[:num_of_tests_to_add]
current_allocation.extend(independent_tests_to_add)
del independent_tests[:num_of_tests_to_add]
tests_allocation.append(current_allocation)
return tests_allocation