119 lines
3.7 KiB
Python
119 lines
3.7 KiB
Python
# © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK
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import datetime
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import shutil
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import tempfile
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from datetime import datetime
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from pathlib import Path
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from typing import Union
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from unittest.mock import patch
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import pytest
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from primaite import getLogger
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from primaite.environment.primaite_env import Primaite
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from primaite.primaite_session import PrimaiteSession
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from tests.mock_and_patch.get_session_path_mock import get_temp_session_path
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ACTION_SPACE_NODE_VALUES = 1
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ACTION_SPACE_NODE_ACTION_VALUES = 1
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_LOGGER = getLogger(__name__)
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class TempPrimaiteSession(PrimaiteSession):
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"""
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A temporary PrimaiteSession class.
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Uses context manager for deletion of files upon exit.
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"""
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def __init__(
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self,
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training_config_path: Union[str, Path],
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lay_down_config_path: Union[str, Path],
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):
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super().__init__(training_config_path, lay_down_config_path)
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self.setup()
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@property
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def env(self) -> Primaite:
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"""Direct access to the env for ease of testing."""
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return self._agent_session._env # noqa
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def __enter__(self):
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return self
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def __exit__(self, type, value, tb):
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shutil.rmtree(self.session_path)
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_LOGGER.debug(f"Deleted temp session directory: {self.session_path}")
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@pytest.fixture
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def temp_primaite_session(request):
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"""
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Provides a temporary PrimaiteSession instance.
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It's temporary as it uses a temporary directory as the session path.
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To use this fixture you need to:
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- parametrize your test function with:
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- "temp_primaite_session"
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- [[path to training config, path to lay down config]]
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- Include the temp_primaite_session fixture as a param in your test
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function.
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- use the temp_primaite_session as a context manager assigning is the
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name 'session'.
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.. code:: python
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from primaite.config.lay_down_config import dos_very_basic_config_path
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from primaite.config.training_config import main_training_config_path
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@pytest.mark.parametrize(
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"temp_primaite_session",
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[
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[main_training_config_path(), dos_very_basic_config_path()]
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],
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indirect=True
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)
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def test_primaite_session(temp_primaite_session):
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with temp_primaite_session as session:
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# Learning outputs are saved in session.learning_path
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session.learn()
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# Evaluation outputs are saved in session.evaluation_path
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session.evaluate()
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# To ensure that all files are written, you must call .close()
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session.close()
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# If you need to inspect any session outputs, it must be done
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# inside the context manager
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# Now that we've exited the context manager, the
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# session.session_path directory and its contents are deleted
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"""
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training_config_path = request.param[0]
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lay_down_config_path = request.param[1]
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with patch("_primaite.agents.agent_abc.get_session_path", get_temp_session_path) as mck:
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mck.session_timestamp = datetime.now()
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return TempPrimaiteSession(training_config_path, lay_down_config_path)
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@pytest.fixture
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def temp_session_path() -> Path:
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"""
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Get a temp directory session path the test session will output to.
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:return: The session directory path.
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"""
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session_timestamp = datetime.now()
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date_dir = session_timestamp.strftime("%Y-%m-%d")
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session_path = session_timestamp.strftime("%Y-%m-%d_%H-%M-%S")
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session_path = Path(tempfile.gettempdir()) / "_primaite" / date_dir / session_path
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session_path.mkdir(exist_ok=True, parents=True)
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return session_path
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