Merge pull request #1424 from ethereum/fill_static_tests

fix(plugins/forks): Add `valid_at` to allowed markers to avoid warnings
fix(specs): Fail on static test parsing errors

Author: marioevz

src/ethereum_test_specs/static_state/state_static.py

@@ -62,7 +62,7 @@ def test_state_vectors(
                             post=post,
                             tx=tx,
                         )
-            pytest.skip(f"Expectation not found for d={d}, g={g}, v={v}, fork={fork}")
+            pytest.fail(f"Expectation not found for d={d}, g={g}, v={v}, fork={fork}")
 
         return test_state_vectors
 

src/pytest_plugins/forks/forks.py

@@ -408,6 +408,10 @@ def pytest_configure(config: pytest.Config):
         "markers",
         "valid_until(fork): specifies until which fork a test case is valid",
     )
+    config.addinivalue_line(
+        "markers",
+        "valid_at(fork): specifies at which fork a test case is valid",
+    )
     config.addinivalue_line(
         "markers",
         (