Uploaded Test files

venv/Lib/site-packages/sklearn/tests/test_build.py

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+import os
+import pytest
+import textwrap
+
+from sklearn import __version__
+from sklearn.utils._openmp_helpers import _openmp_parallelism_enabled
+
+
+def test_openmp_parallelism_enabled():
+    # Check that sklearn is built with OpenMP-based parallelism enabled.
+    # This test can be skipped by setting the environment variable
+    # ``SKLEARN_SKIP_OPENMP_TEST``.
+    if os.getenv("SKLEARN_SKIP_OPENMP_TEST"):
+        pytest.skip("test explicitly skipped (SKLEARN_SKIP_OPENMP_TEST)")
+
+    base_url = "dev" if __version__.endswith(".dev0") else "stable"
+    err_msg = textwrap.dedent(
+        """
+        This test fails because scikit-learn has been built without OpenMP.
+        This is not recommended since some estimators will run in sequential
+        mode instead of leveraging thread-based parallelism.
+
+        You can find instructions to build scikit-learn with OpenMP at this
+        address:
+
+            https://scikit-learn.org/{}/developers/advanced_installation.html
+
+        You can skip this test by setting the environment variable
+        SKLEARN_SKIP_OPENMP_TEST to any value.
+        """).format(base_url)
+
+    assert _openmp_parallelism_enabled(), err_msg