Uploaded Test files

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

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+import textwrap
+
+import pytest
+
+from sklearn.utils._testing import assert_run_python_script
+from sklearn._build_utils.deprecated_modules import _DEPRECATED_MODULES
+
+
+# We are deprecating importing anything that isn't in an __init__ file and
+# remaming most file.py into _file.py.
+# This test makes sure imports are still possible but deprecated, with the
+# appropriate error message.
+
+
+@pytest.mark.parametrize('deprecated_path, importee', [
+    (deprecated_path, importee)
+    for _, deprecated_path, _, importee in _DEPRECATED_MODULES
+])
+def test_import_is_deprecated(deprecated_path, importee):
+    # Make sure that "from deprecated_path import importee" is still possible
+    # but raises a warning
+    # We only need one entry per file, no need to check multiple imports from
+    # the same file.
+
+    # TODO: remove in 0.24
+
+    # Special case for:
+    # https://github.com/scikit-learn/scikit-learn/issues/15842
+    if deprecated_path in ("sklearn.decomposition.dict_learning",
+                           "sklearn.inspection.partial_dependence"):
+        pytest.skip("No warning can be raised for " + deprecated_path)
+
+    expected_message = (
+        "The {deprecated_path} module is  deprecated in version "
+        "0.22 and will be removed in version 0.24. "
+        "The corresponding classes / functions "
+        "should instead be imported from .*. "
+        "Anything that cannot be imported from .* is now "
+        "part of the private API."
+    ).format(deprecated_path=deprecated_path)
+
+    script = """
+    import pytest
+
+    with pytest.warns(FutureWarning,
+                      match="{expected_message}"):
+        from {deprecated_path} import {importee}
+    """.format(
+        expected_message=expected_message,
+        deprecated_path=deprecated_path,
+        importee=importee
+    )
+    assert_run_python_script(textwrap.dedent(script))