[enhancement] add sklearnex version of validate_data, _check_sample_weight

sklearnex/tests/test_memory_usage.py

@@ -35,10 +35,14 @@
     get_dataframes_and_queues,
 )
 from onedal.tests.utils._device_selection import get_queues, is_dpctl_device_available
-from onedal.utils._array_api import _get_sycl_namespace
 from onedal.utils._dpep_helpers import dpctl_available, dpnp_available
 from sklearnex import config_context
-from sklearnex.tests.utils import PATCHED_FUNCTIONS, PATCHED_MODELS, SPECIAL_INSTANCES
+from sklearnex.tests.utils import (
+    PATCHED_FUNCTIONS,
+    PATCHED_MODELS,
+    SPECIAL_INSTANCES,
+    DummyEstimator,
+)
 from sklearnex.utils._array_api import get_namespace
 
 if dpctl_available:
@@ -131,41 +135,6 @@ def gen_functions(functions):
 ORDER_DICT = {"F": np.asfortranarray, "C": np.ascontiguousarray}
 
 
-if _is_dpc_backend:
-
-    from sklearn.utils.validation import check_is_fitted
-
-    from onedal.datatypes import from_table, to_table
-
-    class DummyEstimatorWithTableConversions(BaseEstimator):
-
-        def fit(self, X, y=None):
-            sua_iface, xp, _ = _get_sycl_namespace(X)
-            X_table = to_table(X)
-            y_table = to_table(y)
-            # The presence of the fitted attributes (ending with a trailing
-            # underscore) is required for the correct check. The cleanup of
-            # the memory will occur at the estimator instance deletion.
-            self.x_attr_ = from_table(
-                X_table, sua_iface=sua_iface, sycl_queue=X.sycl_queue, xp=xp
-            )
-            self.y_attr_ = from_table(
-                y_table, sua_iface=sua_iface, sycl_queue=X.sycl_queue, xp=xp
-            )
-            return self
-
-        def predict(self, X):
-            # Checks if the estimator is fitted by verifying the presence of
-            # fitted attributes (ending with a trailing underscore).
-            check_is_fitted(self)
-            sua_iface, xp, _ = _get_sycl_namespace(X)
-            X_table = to_table(X)
-            returned_X = from_table(
-                X_table, sua_iface=sua_iface, sycl_queue=X.sycl_queue, xp=xp
-            )
-            return returned_X
-
-
 def gen_clsf_data(n_samples, n_features, dtype=None):
     data, label = make_classification(
         n_classes=2, n_samples=n_samples, n_features=n_features, random_state=777
@@ -369,7 +338,7 @@ def test_table_conversions_memory_leaks(dataframe, queue, order, data_shape, dty
         pytest.skip("SYCL device memory leak check requires the level zero sysman")
 
     _kfold_function_template(
-        DummyEstimatorWithTableConversions,
+        DummyEstimator,
         dataframe,
         data_shape,
         queue,

sklearnex/tests/utils/__init__.py

@@ -21,6 +21,7 @@
     SPECIAL_INSTANCES,
     UNPATCHED_FUNCTIONS,
     UNPATCHED_MODELS,
+    DummyEstimator,
     _get_processor_info,
     call_method,
     gen_dataset,
@@ -39,6 +40,7 @@
     "gen_models_info",
     "gen_dataset",
     "sklearn_clone_dict",
+    "DummyEstimator",
 ]
 
 _IS_INTEL = "GenuineIntel" in _get_processor_info()

sklearnex/tests/utils/base.py

@@ -32,8 +32,11 @@
 )
 from sklearn.datasets import load_diabetes, load_iris
 from sklearn.neighbors._base import KNeighborsMixin
+from sklearn.utils.validation import check_is_fitted
 
+from onedal.datatypes import from_table, to_table
 from onedal.tests.utils._dataframes_support import _convert_to_dataframe
+from onedal.utils._array_api import _get_sycl_namespace
 from sklearnex import get_patch_map, patch_sklearn, sklearn_is_patched, unpatch_sklearn
 from sklearnex.basic_statistics import BasicStatistics, IncrementalBasicStatistics
 from sklearnex.linear_model import LogisticRegression
@@ -369,3 +372,41 @@ def _get_processor_info():
         )
 
     return proc
+
+
+class DummyEstimator(BaseEstimator):
+
+    def fit(self, X, y=None):
+        sua_iface, xp, _ = _get_sycl_namespace(X)
+        X_table = to_table(X)
+        y_table = to_table(y)
+        # The presence of the fitted attributes (ending with a trailing
+        # underscore) is required for the correct check. The cleanup of
+        # the memory will occur at the estimator instance deletion.
+        if sua_iface:
+            self.x_attr_ = from_table(
+                X_table, sua_iface=sua_iface, sycl_queue=X.sycl_queue, xp=xp
+            )
+            self.y_attr_ = from_table(
+                y_table, sua_iface=sua_iface, sycl_queue=X.sycl_queue, xp=xp
+            )
+        else:
+            self.x_attr = from_table(X_table)
+            self.y_attr = from_table(y_table)
+
+        return self
+
+    def predict(self, X):
+        # Checks if the estimator is fitted by verifying the presence of
+        # fitted attributes (ending with a trailing underscore).
+        check_is_fitted(self)
+        sua_iface, xp, _ = _get_sycl_namespace(X)
+        X_table = to_table(X)
+        if sua_iface:
+            returned_X = from_table(
+                X_table, sua_iface=sua_iface, sycl_queue=X.sycl_queue, xp=xp
+            )
+        else:
+            returned_X = from_table(X_table)
+
+        return returned_X

sklearnex/utils/__init__.py

@@ -14,6 +14,6 @@
 # limitations under the License.
 # ===============================================================================
 
-from .validation import _assert_all_finite
+from .validation import assert_all_finite
 
-__all__ = ["_assert_all_finite"]
+__all__ = ["assert_all_finite"]