Add reward test.

tests/integration_tests/game_layer/test_rewards.py

@@ -0,0 +1,37 @@
+from primaite.game.agent.rewards import RewardFunction, WebpageUnavailablePenalty
+from primaite.simulator.network.hardware.nodes.router import ACLAction, Router
+from primaite.simulator.network.transmission.network_layer import IPProtocol
+from primaite.simulator.network.transmission.transport_layer import Port
+from tests.conftest import ControlledAgent
+
+
+def test_WebpageUnavailablePenalty(game_and_agent):
+    """Test that we get the right reward for failing to fetch a website."""
+    game, agent = game_and_agent
+    agent: ControlledAgent
+    comp = WebpageUnavailablePenalty(node_hostname="client_1")
+
+    agent.reward_function.register_component(comp, 0.7)
+    action = ("DONOTHING", {})
+    agent.store_action(action)
+    game.step()
+
+    # client 1 has not attempted to fetch webpage yet!
+    assert agent.reward_function.current_reward == 0.0
+
+    client_1 = game.simulation.network.get_node_by_hostname("client_1")
+    browser = client_1.software_manager.software.get("WebBrowser")
+    browser.run()
+    browser.target_url = "http://www.example.com"
+    assert browser.get_webpage()
+    action = ("DONOTHING", {})
+    agent.store_action(action)
+    game.step()
+    assert agent.reward_function.current_reward == 0.7
+
+    router: Router = game.simulation.network.get_node_by_hostname("router")
+    router.acl.add_rule(action=ACLAction.DENY, protocol=IPProtocol.TCP, src_port=Port.HTTP, dst_port=Port.HTTP)
+    assert not browser.get_webpage()
+    agent.store_action(action)
+    game.step()
+    assert agent.reward_function.current_reward == -0.7