update

.CondaPkg/env/Lib/site-packages/scipy/linalg/tests/test_extending.py

@@ -0,0 +1,42 @@
+import os
+import platform
+
+import numpy as np
+import pytest
+
+from scipy._lib._testutils import IS_EDITABLE, _test_cython_extension, cython
+from scipy.linalg.blas import cdotu  # type: ignore[attr-defined]
+from scipy.linalg.lapack import dgtsv  # type: ignore[attr-defined]
+
+
+@pytest.mark.fail_slow(60)
+# essential per https://github.com/scipy/scipy/pull/20487#discussion_r1567057247
+@pytest.mark.skipif(IS_EDITABLE,
+                    reason='Editable install cannot find .pxd headers.')
+@pytest.mark.skipif(platform.machine() in ["wasm32", "wasm64"],
+                    reason="Can't start subprocess")
+@pytest.mark.skipif(cython is None, reason="requires cython")
+def test_cython(tmp_path):
+    srcdir = os.path.dirname(os.path.dirname(__file__))
+    extensions, extensions_cpp = _test_cython_extension(tmp_path, srcdir)
+    # actually test the cython c-extensions
+    a = np.ones(8) * 3
+    b = np.ones(9)
+    c = np.ones(8) * 4
+    x = np.ones(9)
+    _, _, _, x, _ = dgtsv(a, b, c, x)
+    a = np.ones(8) * 3
+    b = np.ones(9)
+    c = np.ones(8) * 4
+    x_c = np.ones(9)
+    extensions.tridiag(a, b, c, x_c)
+    a = np.ones(8) * 3
+    b = np.ones(9)
+    c = np.ones(8) * 4
+    x_cpp = np.ones(9)
+    extensions_cpp.tridiag(a, b, c, x_cpp)
+    np.testing.assert_array_equal(x, x_cpp)
+    cx = np.array([1-1j, 2+2j, 3-3j], dtype=np.complex64)
+    cy = np.array([4+4j, 5-5j, 6+6j], dtype=np.complex64)
+    np.testing.assert_array_equal(cdotu(cx, cy), extensions.complex_dot(cx, cy))
+    np.testing.assert_array_equal(cdotu(cx, cy), extensions_cpp.complex_dot(cx, cy))