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"""Module to test the KytosGraph in graph.py""" |
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from unittest import TestCase |
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from kytos.core.interface import Interface |
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from kytos.core.link import Link |
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from kytos.core.switch import Switch |
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# module under test |
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from graph import KytosGraph |
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class TestResults(TestCase): |
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"""Tests for the graph class.""" |
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def initializer(self, val=0): |
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"""Test setup for a specific topology""" |
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method_name = "generate_topology" if not val else "generate_topology_" + str(val) |
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method = getattr(self, method_name) |
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method() |
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switches, links = method() |
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self.graph = KytosGraph() |
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self.graph.clear() |
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self.graph.update_nodes(switches) |
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self.graph.update_links(links) |
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def get_path(self, source, destination): |
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"""Return the shortest path""" |
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results = self.graph.shortest_paths(source, destination) |
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return results |
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def get_path_constrained(self, source, destination, minimum_hits=None, |
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**metrics): |
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"""Return the constrained shortest path""" |
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return self.graph.constrained_flexible_paths(source, destination, |
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minimum_hits, |
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**metrics) |
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@staticmethod |
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def generate_topology(): |
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"""Generates a predetermined topology""" |
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switches = {} |
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links = {} |
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return switches, links |
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@staticmethod |
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def create_switch(name, switches): |
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"""Add a new switch to the list of switches""" |
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switches[name] = Switch(name) |
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@staticmethod |
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def add_interfaces(count, switch, interfaces): |
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"""Add a new interface to the list of interfaces""" |
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for i in range(1, count + 1): |
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str1 = "{}:{}".format(switch.dpid, i) |
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interface = Interface(str1, i, switch) |
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interfaces[str1] = interface |
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switch.update_interface(interface) |
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@staticmethod |
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def create_link(interface_a, interface_b, interfaces, links): |
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"""Add a new link between two interfaces into the list of links""" |
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compounded = "{}|{}".format(interface_a, interface_b) |
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final_name = compounded |
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links[final_name] = Link( |
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interfaces[interface_a], interfaces[interface_b]) |
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@staticmethod |
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def add_metadata_to_link(interface_a, interface_b, metrics, links): |
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"""Add metadata to an existing link in the list of links""" |
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compounded = "{}|{}".format(interface_a, interface_b) |
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links[compounded].extend_metadata(metrics) |
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kytos /
pathfinder
