Add basic primaite session e2e tests

tests/e2e_integration_tests/test_primaite_session.py

@@ -0,0 +1,51 @@
+import pytest
+
+from tests.conftest import TempPrimaiteSession
+
+CFG_PATH = "tests/assets/configs/test_primaite_session.yaml"
+TRAINING_ONLY_PATH = "tests/assets/configs/train_only_primaite_session.yaml"
+EVAL_ONLY_PATH = "tests/assets/configs/eval_only_primaite_session.yaml"
+
+
+class TestPrimaiteSession:
+    @pytest.mark.parametrize("temp_primaite_session", [[CFG_PATH]], indirect=True)
+    def test_creating_session(self, temp_primaite_session):
+        """Check that creating a session from config works."""
+        with temp_primaite_session as session:
+            if not isinstance(session, TempPrimaiteSession):
+                raise AssertionError
+
+            assert session is not None
+            assert session.simulation
+            assert len(session.agents) == 3
+            assert len(session.rl_agents) == 1
+
+            assert session.policy
+            assert session.env
+
+            assert session.simulation.network
+            assert len(session.simulation.network.nodes) == 10
+
+    @pytest.mark.parametrize("temp_primaite_session", [[CFG_PATH]], indirect=True)
+    def test_start_session(self, temp_primaite_session):
+        """Make sure you can go all the way through the session without errors."""
+        with temp_primaite_session as session:
+            session: TempPrimaiteSession
+            session.start_session()
+            # TODO: check that env was closed, that the model was saved, etc.
+
+    @pytest.mark.parametrize("temp_primaite_session", [[TRAINING_ONLY_PATH]], indirect=True)
+    def test_training_only_session(self, temp_primaite_session):
+        """Check that you can run a training-only session."""
+        with temp_primaite_session as session:
+            session: TempPrimaiteSession
+            session.start_session()
+            # TODO: include checks that the model was trained, e.g. that the loss changed and checkpoints were saved?
+
+    @pytest.mark.parametrize("temp_primaite_session", [[EVAL_ONLY_PATH]], indirect=True)
+    def test_eval_only_session(self, temp_primaite_session):
+        """Check that you can load a model and run an eval-only session."""
+        with temp_primaite_session as session:
+            session: TempPrimaiteSession
+            session.start_session()
+            # TODO: include checks that the model was loaded and that the eval-only session ran