add pytest no-crds option to disable tests that require crds

README.md

@@ -5,7 +5,7 @@
 [![codecov](https://codecov.io/gh/spacetelescope/stdatamodels/branch/master/graph/badge.svg?token=TrmUKaTP2t)](https://codecov.io/gh/spacetelescope/stdatamodels)
 
 
-Provides `DataModel`, which is the base class for data models implemented in the JWST calibration software.
+Provides `DataModel`, which is the base class for data models implemented in the JWST and Roman calibration software.
 
 
 ## Unit Tests
@@ -18,3 +18,9 @@ for more information). Minimally (if not on the stsci vpn where the default path
 ```bash
 export CRDS_PATH=/tmp/crds_cache/jwst_ops
 ```
+
+These tests can also be skipped with the `no-crds` pytest option
+
+```bash
+pytest --no-crds
+```

src/stdatamodels/jwst/datamodels/tests/test_schema_against_crds.py

@@ -171,6 +171,10 @@ def flatten(xs):
 }
 
 
+@pytest.mark.skipif(
+    "config.getoption('--no-crds')",
+    reason="no_crds option was enabled",
+)
 @pytest.mark.parametrize('instrument', ['fgs', 'miri', 'nircam', 'niriss', 'nirspec'])
 def test_crds_selectors_vs_datamodel(jail_environ, instrument):
     log.info(f"crds_path: {crds.config.get_crds_path()}")

tests/conftest.py

@@ -9,6 +9,15 @@
 from stdatamodels import s3_utils
 
 
+def pytest_addoption(parser):
+    parser.addoption(
+        "--no-crds",
+        action="store_true",
+        default=False,
+        help="Skip tests against crds",
+    )
+
+
 @pytest.fixture(autouse=True)
 def monkey_patch_s3_client(monkeypatch, request):
     # If tmpdir is used in the test, then it is providing the file.  Map to it.