Initialize dpnp/tests/tensor and migrate test_tensor_* files

Author: vlad-perevezentsev

dpnp/tests/tensor/__init__.py

@@ -0,0 +1,31 @@
+# *****************************************************************************
+# Copyright (c) 2026, Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# - Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# - Neither the name of the copyright holder nor the names of its contributors
+#   may be used to endorse or promote products derived from this software
+#   without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+# *****************************************************************************
+
+__doc__ = r"""
+Test suite for tensor functionality migrated from dpctl.
+Running test suite requires Cython and a working compiler."""

dpnp/tests/tensor/helper/__init__.py

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+# *****************************************************************************
+# Copyright (c) 2026, Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# - Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# - Neither the name of the copyright holder nor the names of its contributors
+#   may be used to endorse or promote products derived from this software
+#   without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+# *****************************************************************************
+
+"""Helper module for dpctl/tests"""
+
+from ._helper import (
+    create_invalid_capsule,
+    get_queue_or_skip,
+    has_cpu,
+    has_gpu,
+    has_sycl_platforms,
+    skip_if_dtype_not_supported,
+)
+
+__all__ = [
+    "create_invalid_capsule",
+    "has_cpu",
+    "has_gpu",
+    "has_sycl_platforms",
+    "get_queue_or_skip",
+    "skip_if_dtype_not_supported",
+]

dpnp/tests/tensor/helper/_helper.py

@@ -0,0 +1,91 @@
+# *****************************************************************************
+# Copyright (c) 2026, Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# - Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# - Neither the name of the copyright holder nor the names of its contributors
+#   may be used to endorse or promote products derived from this software
+#   without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+# *****************************************************************************
+
+import dpctl
+import pytest
+
+
+def has_gpu(backend="opencl"):
+    return bool(dpctl.get_num_devices(backend=backend, device_type="gpu"))
+
+
+def has_cpu(backend="opencl"):
+    return bool(dpctl.get_num_devices(backend=backend, device_type="cpu"))
+
+
+def has_sycl_platforms():
+    return bool(len(dpctl.get_platforms()))
+
+
+def create_invalid_capsule():
+    """Creates an invalid capsule for the purpose of testing dpctl
+    constructors that accept capsules.
+    """
+    import ctypes
+
+    ctor = ctypes.pythonapi.PyCapsule_New
+    ctor.restype = ctypes.py_object
+    ctor.argtypes = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_void_p]
+    return ctor(id(ctor), b"invalid", 0)
+
+
+def get_queue_or_skip(args=()):
+    try:
+        q = dpctl.SyclQueue(*args)
+    except dpctl.SyclQueueCreationError:
+        pytest.skip(f"Queue could not be created from {args}")
+    return q
+
+
+def skip_if_dtype_not_supported(dt, q_or_dev):
+    # TODO: revert to `import dpctl.tensor...`
+    # when dpnp fully migrates dpctl/tensor
+    import dpctl_ext.tensor as dpt
+
+    dt = dpt.dtype(dt)
+    if type(q_or_dev) is dpctl.SyclQueue:
+        dev = q_or_dev.sycl_device
+    elif type(q_or_dev) is dpctl.SyclDevice:
+        dev = q_or_dev
+    else:
+        raise TypeError(
+            "Expected dpctl.SyclQueue or dpctl.SyclDevice, "
+            f"got {type(q_or_dev)}"
+        )
+    dev_has_dp = dev.has_aspect_fp64
+    if dev_has_dp is False and dt in [dpt.float64, dpt.complex128]:
+        pytest.skip(
+            f"{dev.name} does not support double precision floating point types"
+        )
+    dev_has_hp = dev.has_aspect_fp16
+    if dev_has_hp is False and dt in [
+        dpt.float16,
+    ]:
+        pytest.skip(
+            f"{dev.name} does not support half precision floating point type"
+        )