Skip malformed real requests before fixture setup

Author: adamtheturtle

tests/mock_vws/fixtures/vuforia_backends.py

@@ -377,6 +377,14 @@ class VuforiaBackend(Enum):
 # jobs, and cannot be raised or reset, so signed requests run against the real
 # Vuforia only when this option is given.
 VERIFY_MODEL_TARGET_SIGNING_OPTION = "--verify-model-target-signing"
+_INVALID_JSON_REAL_NODE_ID_PREFIX = (
+    "tests/mock_vws/test_invalid_json.py::TestInvalidJSON::test_invalid_json["
+    "Real Vuforia-"
+)
+_INVALID_JSON_REAL_SKIP_REASON = (
+    "Real Vuforia can leave malformed-body requests open indefinitely; the "
+    "mock backends still verify this contract."
+)
 
 
 @beartype
@@ -413,7 +421,7 @@ def pytest_collection_modifyitems(
     config: pytest.Config,
     items: list[pytest.Item],
 ) -> None:
-    """Skip Docker tests if requested."""
+    """Apply configured and infrastructure-specific test skips."""
     skip_docker_build_tests_option = "--skip-docker_build_tests"
     skip_docker_build_tests_marker = pytest.mark.skip(
         reason=(
@@ -426,6 +434,13 @@ def pytest_collection_modifyitems(
             if "requires_docker_build" in item.keywords:
                 item.add_marker(marker=skip_docker_build_tests_marker)
 
+    invalid_json_real_marker = pytest.mark.skip(
+        reason=_INVALID_JSON_REAL_SKIP_REASON,
+    )
+    for item in items:
+        if item.nodeid.startswith(_INVALID_JSON_REAL_NODE_ID_PREFIX):
+            item.add_marker(marker=invalid_json_real_marker)
+
 
 @beartype
 def _setup_backend(

tests/mock_vws/test_invalid_json.py

@@ -11,7 +11,6 @@
 from vws_auth_tools import authorization_header, rfc_1123_date
 
 from mock_vws._constants import ResultCodes
-from tests.mock_vws.fixtures.vuforia_backends import VuforiaBackend
 from tests.mock_vws.utils import Endpoint
 from tests.mock_vws.utils.assertions import (
     assert_valid_date_header,
@@ -44,19 +43,10 @@ class TestInvalidJSON:
     def test_invalid_json(
         endpoint: Endpoint,
         content: bytes,
-        verify_mock_vuforia: VuforiaBackend,
     ) -> None:
         """Giving invalid, non-object or non-UTF-8 JSON returns error
         responses.
         """
-        if verify_mock_vuforia is VuforiaBackend.REAL:
-            pytest.skip(
-                reason=(
-                    "Real Vuforia can leave malformed-body requests open "
-                    "indefinitely; the mock backends still verify this "
-                    "contract."
-                ),
-            )
         gmt = ZoneInfo(key="GMT")
         now = datetime.now(tz=gmt)
         time_to_freeze = now