Update Dockerfile and add comments in pyproject.toml

tests/test_dockerfile.py

@@ -0,0 +1,27 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+
+
+@pytest.fixture
+def dockerfile_content() -> str:
+    """Read the content of the Dockerfile and return it as a string.
+
+    Returns:
+        str: The content of the Dockerfile.
+    """
+    return Path("Dockerfile").read_text(encoding="utf-8")
+
+
+def test_volume_exists(dockerfile_content: str) -> None:
+    """Test that the volume is set in the Dockerfile."""
+    assert_msg = "Volume not set in Dockerfile. This has to always be set to /home/botuser/data/."
+    assert 'VOLUME ["/home/botuser/data/"]' in dockerfile_content, assert_msg
+
+
+def test_env_variables(dockerfile_content: str) -> None:
+    """Test that the environment variables for Python are set in the Dockerfile."""
+    assert "ENV PYTHONUNBUFFERED=1" in dockerfile_content, "PYTHONUNBUFFERED not set in Dockerfile"
+    assert "ENV PYTHONDONTWRITEBYTECODE=1" in dockerfile_content, "PYTHONDONTWRITEBYTECODE not set in Dockerfile"