Merge pull request #220 from opentargets/tskir-3140-better-dag-import…

…-fix

A better way to fix DAG import test

pyproject.toml

@@ -91,6 +91,10 @@ exclude = ["dist"]
 
 [tool.pytest.ini_options]
 addopts = "-n auto --doctest-modules --cov=src/ --cov-report=xml"
+pythonpath = [
+    ".",
+    "./src/airflow/dags"
+]
 
 [[tool.mypy.overrides]]
 module = "google.protobuf.duration_pb2"

tests/airflow/test_dag.py

@@ -6,12 +6,8 @@
 
 
 @pytest.fixture(params=["./src/airflow/dags"])
-def dag_bag(request, monkeypatch: pytest.MonkeyPatch):
+def dag_bag(request):
     """Return a DAG bag for testing."""
-    # It's important to change directory before importing DAGs, because this is way Airflow works in production: the
-    # dags/ directory serves as a root (and indeed $PYTHONPATH) for all DAGS contained therein.  Using Monkeypatch
-    # ensures that the other tests are not affected.
-    monkeypatch.chdir(request.param)
     return DagBag(dag_folder=request.param, include_examples=False)