fix test

Author: aeiwz

.github/workflows/ci.yml

@@ -69,7 +69,9 @@ jobs:
           pip install -r requirements-dev.txt
 
       - name: Build and install with C extension
-        run: pip install -e . --no-build-isolation
+        run: |
+          python setup.py build_ext --inplace
+          pip install -e . --no-build-isolation
 
       - name: Run test suite (no slow/perf tests)
         run: |

tests/test_memory_leaks.py

@@ -34,6 +34,17 @@
 import numpy as np
 import pytest
 
+try:
+    import metbit._native_backend  # noqa: F401
+    _NATIVE_AVAILABLE = True
+except ImportError:
+    _NATIVE_AVAILABLE = False
+
+_skip_no_native = pytest.mark.skipif(
+    not _NATIVE_AVAILABLE,
+    reason="metbit._native_backend C extension not built",
+)
+
 # ---------------------------------------------------------------------------
 # Helpers
 # ---------------------------------------------------------------------------
@@ -79,6 +90,7 @@ def _growth_per_call(fn: Callable, reps: int = 300) -> float:
 # Reference count sanity (pure-Python, fast)
 # ---------------------------------------------------------------------------
 
+@_skip_no_native
 class TestReferenceCount:
     """Verify C extension outputs are collectable after release.