225 lines
7.8 KiB
Python
225 lines
7.8 KiB
Python
"""Test env creation and behaviour with different observation spaces."""
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import numpy as np
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import pytest
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from primaite.environment.observations import (
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NodeLinkTable,
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NodeStatuses,
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ObservationsHandler,
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)
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from primaite.environment.primaite_env import Primaite
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from tests import TEST_CONFIG_ROOT
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from tests.conftest import _get_primaite_env_from_config
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@pytest.fixture
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def env(request):
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"""Build Primaite environment for integration tests of observation space."""
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marker = request.node.get_closest_marker("env_config_paths")
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main_config_path = marker.args[0]["main_config_path"]
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lay_down_config_path = marker.args[0]["lay_down_config_path"]
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env = _get_primaite_env_from_config(
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main_config_path=main_config_path,
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lay_down_config_path=lay_down_config_path,
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)
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yield env
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@pytest.mark.env_config_paths(
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dict(
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main_config_path=TEST_CONFIG_ROOT / "one_node_states_on_off_main_config.yaml",
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lay_down_config_path=TEST_CONFIG_ROOT
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/ "obs_tests/laydown_without_obs_space.yaml",
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)
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)
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def test_default_obs_space(env: Primaite):
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"""Create environment with no obs space defined in config and check that the default obs space was created."""
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env.update_environent_obs()
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components = env.obs_handler.registered_obs_components
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assert len(components) == 1
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assert isinstance(components[0], NodeLinkTable)
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@pytest.mark.env_config_paths(
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dict(
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main_config_path=TEST_CONFIG_ROOT / "one_node_states_on_off_main_config.yaml",
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lay_down_config_path=TEST_CONFIG_ROOT
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/ "obs_tests/laydown_without_obs_space.yaml",
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)
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)
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def test_registering_components(env: Primaite):
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"""Test regitering and deregistering a component."""
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handler = ObservationsHandler()
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component = NodeStatuses(env)
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handler.register(component)
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assert component in handler.registered_obs_components
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handler.deregister(component)
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assert component not in handler.registered_obs_components
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@pytest.mark.env_config_paths(
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dict(
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main_config_path=TEST_CONFIG_ROOT / "obs_tests/main_config_no_agent.yaml",
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lay_down_config_path=TEST_CONFIG_ROOT
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/ "obs_tests/laydown_with_NODE_LINK_TABLE.yaml",
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)
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)
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class TestNodeLinkTable:
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"""Test the NodeLinkTable observation component (in isolation)."""
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def test_obs_shape(self, env: Primaite):
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"""Try creating env with box observation space."""
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env.update_environent_obs()
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# we have three nodes and two links, with two service
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# therefore the box observation space will have:
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# * 5 rows (3 nodes + 2 links)
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# * 6 columns (four fixed and two for the services)
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assert env.env_obs.shape == (5, 6)
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def test_value(self, env: Primaite):
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"""Test that the observation is generated correctly.
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The laydown has:
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* 3 nodes (2 service nodes and 1 active node)
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* 2 services
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* 2 links
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Both nodes have both services, and all states are GOOD, therefore the expected observation value is:
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* Node 1:
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* 1 (id)
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* 1 (good hardware state)
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* 1 (good OS state)
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* 1 (good file system state)
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* 1 (good service1 state)
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* 1 (good service2 state)
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* Node 2:
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* 2 (id)
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* 1 (good hardware state)
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* 1 (good OS state)
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* 1 (good file system state)
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* 1 (good service1 state)
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* 1 (good service2 state)
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* Node 3 (active node):
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* 3 (id)
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* 1 (good hardware state)
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* 1 (good OS state)
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* 1 (good file system state)
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* 0 (doesn't have service1)
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* 0 (doesn't have service2)
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* Link 1:
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* 4 (id)
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* 0 (n/a hardware state)
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* 0 (n/a OS state)
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* 0 (n/a file system state)
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* 0 (no traffic for service1)
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* 0 (no traffic for service2)
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* Link 2:
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* 5 (id)
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* 0 (good hardware state)
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* 0 (good OS state)
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* 0 (good file system state)
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* 0 (no traffic service1)
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* 0 (no traffic for service2)
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"""
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act = np.asarray([0, 0, 0, 0])
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obs, reward, done, info = env.step(act)
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assert np.array_equal(
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obs,
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[
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[1, 1, 1, 1, 1, 1],
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[2, 1, 1, 1, 1, 1],
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[3, 1, 1, 1, 0, 0],
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[4, 0, 0, 0, 0, 0],
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[5, 0, 0, 0, 0, 0],
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],
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)
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@pytest.mark.env_config_paths(
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dict(
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main_config_path=TEST_CONFIG_ROOT / "obs_tests/main_config_no_agent.yaml",
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lay_down_config_path=TEST_CONFIG_ROOT
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/ "obs_tests/laydown_with_NODE_STATUSES.yaml",
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)
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)
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class TestNodeStatuses:
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"""Test the NodeStatuses observation component (in isolation)."""
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def test_obs_shape(self, env: Primaite):
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"""Try creating env with NodeStatuses as the only component."""
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assert env.env_obs.shape == (15,)
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def test_values(self, env: Primaite):
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"""Test that the hardware and software states are encoded correctly.
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The laydown has:
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* one node with a compromised operating system state
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* one node with two services, and the second service is overwhelmed.
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* all other states are good or null
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Therefore, the expected state is:
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* node 1:
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* hardware = good (1)
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* OS = compromised (3)
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* file system = good (1)
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* service 1 = good (1)
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* service 2 = good (1)
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* node 2:
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* hardware = good (1)
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* OS = good (1)
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* file system = good (1)
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* service 1 = good (1)
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* service 2 = overwhelmed (4)
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* node 3 (switch):
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* hardware = good (1)
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* OS = good (1)
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* file system = good (1)
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* service 1 = n/a (0)
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* service 2 = n/a (0)
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"""
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act = np.asarray([0, 0, 0, 0])
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obs, _, _, _ = env.step(act)
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assert np.array_equal(obs, [1, 3, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 0, 0])
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@pytest.mark.env_config_paths(
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dict(
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main_config_path=TEST_CONFIG_ROOT / "obs_tests/main_config_no_agent.yaml",
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lay_down_config_path=TEST_CONFIG_ROOT
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/ "obs_tests/laydown_with_LINK_TRAFFIC_LEVELS.yaml",
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)
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)
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class TestLinkTrafficLevels:
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"""Test the LinkTrafficLevels observation component (in isolation)."""
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def test_obs_shape(self, env: Primaite):
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"""Try creating env with MultiDiscrete observation space."""
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env.update_environent_obs()
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# we have two links and two services, so the shape should be 2 * 2
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assert env.env_obs.shape == (2 * 2,)
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def test_values(self, env: Primaite):
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"""Test that traffic values are encoded correctly.
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The laydown has:
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* two services
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* three nodes
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* two links
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* an IER trying to send 20 bits of data over both links the whole time (via the first service)
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* link bandwidth of 1000, therefore the utilisation is 2%
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"""
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act = np.asarray([0, 0, 0, 0])
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obs, reward, done, info = env.step(act)
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obs, reward, done, info = env.step(act)
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# the observation space has combine_service_traffic set to False, so the space has this format:
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# [link1_service1, link1_service2, link2_service1, link2_service2]
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# we send 20 bits of data via link1 and link2 on service 1.
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# therefore the first and third elements should be 1 and all others 0
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assert np.array_equal(obs, [1, 0, 1, 0])
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