cleanup (#18)

- remove demo runner

- improve docs

- rename all tests to test_* (previously, also setup_* and cleanup_* existed) to improve stability as it is not guaranteed that pytest.ini is loaded.

- improve logging formatting

- improve full integration test

Reviewed-on: local-it-infrastructure/e2e_tests#18
Co-authored-by: Daniel <d.brummerloh@gmail.com>
Co-committed-by: Daniel <d.brummerloh@gmail.com>

tests/test_coordinator.py

@@ -1,5 +1,6 @@
 import os
 import shutil
+import sys
 from pathlib import Path
 
 import pytest
@@ -36,7 +37,16 @@ def tmp_recipes(tmp_path_factory: pytest.TempPathFactory) -> Path:
     return tmp_recipes_target
 
 
-def test_runner_runner_dict_import(tmp_recipes: Path):
+@pytest.fixture
+def clear_sys_path():
+    """clear sys.path before test, restore after"""
+    syspath_copy = sys.path.copy()
+    sys.path.clear()
+    yield
+    sys.path.extend(syspath_copy)
+
+
+def test_runner_runner_dict_import(tmp_recipes: Path, clear_sys_path):
     """import from recipes dict should work, because create_runner_dict has sys.path.append"""
 
     RUNNER_DICT = Coordinator.create_runner_dict(tmp_recipes)