Adjust parallel testing to exclude some tests not concurrency-safe yet

pyproject.toml

@@ -102,8 +102,7 @@ aenum = "^3.0.0"
 click = "^7.1.2"
 click-params = "^0.1.1"
 cloup = "^0.8.0"
-requests-ftp = "^0.3.1"
-fsspec = {git = "https://github.com/earthobservations/filesystem_spec", rev = "integration"}
+fsspec = "2021.7.0"
 
 # Optional dependencies aka. "extras"
 matplotlib =  { version = "^3.3.2", optional = true }
@@ -247,10 +246,10 @@ black = "black wetterdienst example tests"
 isort = "isort wetterdienst example tests"
 format = ["black", "isort"]
 lint = "flakehell lint wetterdienst example tests"
-test = "pytest tests"
-test-parallel = "pytest --numprocesses=4 -m 'not explorer' tests"
+test = "pytest -vvv tests"
+test-parallel = "pytest -vvv --numprocesses=4 -m 'not (explorer or cflake)' tests"
 coverage = "pytest --cov=wetterdienst tests"
-coverage-parallel = "pytest --cov=wetterdienst --numprocesses=4 -m 'not explorer' tests"
+coverage-parallel = "pytest --cov=wetterdienst --numprocesses=4 -m 'not (explorer or cflake)' tests"
 #export_requirements = "poetry export --without-hashes --dev --output requirements.txt"
 export_requirements = "dephell deps convert"
 export_licenses = "pip-licenses --from=mixed --format=plain-vertical --with-authors --with-urls --with-license-file --no-license-path --ignore-packages wetterdienst --output-file=THIRD_PARTY_NOTICES"
@@ -262,6 +261,7 @@ markers = [
     "slow: Slow tests.",
     "sql: All tests related to SQL.",
     "explorer: All tests related to the explorer UI.",
+    "cflake: Tests which are flaky under concurrency",
 ]
 addopts = "-vvv --webdriver=Firefox --headless"
 

tests/example/test_regular_examples.py

@@ -23,11 +23,13 @@
 )
 
 
+@pytest.mark.cflake
 @pytest.mark.parametrize("example", EXAMPLES)
 def test_regular_examples(example):
     assert example.main() is None
 
 
+@pytest.mark.cflake
 def test_radar_examples():
 
     pytest.importorskip("osgeo.gdal")