Add github actions workflow to check that pytest --collect-only works

.github/workflows/pytest-collect.yaml

@@ -0,0 +1,26 @@
+name: Pytest-collect
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  pytest-collect:
+    name: "Pytest: check test collection"
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repo
+      uses: actions/checkout@v2
+    - name: Set up python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.9
+        cache: 'pip'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install .
+    - name: "pytest: check test collection"
+      run: pytest --collect-only

pyproject.toml

@@ -39,6 +39,9 @@ Dask = [
 testpaths = [
     "src/openeo_test_suite/tests",
 ]
+addopts = [
+    "--import-mode=importlib",
+]
 filterwarnings = [
     "ignore:(pkg_resources|jsonschema.RefResolver):DeprecationWarning",
 ]

src/openeo_test_suite/tests/collections/test_collections.py

@@ -5,8 +5,9 @@
 from stac_validator import stac_validator
 
 from openeo_test_suite.lib.backend_under_test import get_collection_ids
-
-from .openeo_api_collection_tests import OpeneoApiCollectionTests
+from openeo_test_suite.tests.collections.openeo_api_collection_tests import (
+    OpeneoApiCollectionTests,
+)
 
 _log = logging.getLogger(__name__)