TST: PR 31332 revisions

* Parametrize `test_gh_31308()` to include an `"i, i"` style structured dtype construction. That test case currently fails so will need to be repaired to avoid overflow. [skip azp] [skip cirrus] [skip actions]
numpy · tylerjereddy · Apr 25, 2026 · Apr 26, 2026 · Apr 26, 2026 · Apr 27, 2026
commit 997f0c4b0f27e852144dbc5de3220b4cee92d6e2
diff --git a/numpy/_core/tests/test_dtype.py b/numpy/_core/tests/test_dtype.py
@@ -2048,10 +2048,13 @@ def test_signature_dtypes_classes(self, typename: str):
         assert params_actual == params_expect
 
 
-def test_gh_31308():
-    kind = [("x", np.float64, 2 ** 28)]
+@pytest.mark.parametrize("kind, exp", [
+    ([("x", np.float64, 2 ** 28)], (2 ** 28 * 8)),
+    ("2147483648i,2147483648i", 17179869184),
+])
+def test_gh_31308(kind, exp):
     kind_dtype = np.dtype(kind)
-    assert kind_dtype.itemsize == (2 ** 28) * 8
+    assert kind_dtype.itemsize == exp
 
 
 @pytest.mark.skipif(not IS_64BIT, reason="test requires 64-bit system")