Correct return of object type at zero copy (#1571)

* Correct return of object type at zero copy in dpnp.asarray()

* Add tests for gh-1570

Author: vlad-perevezentsev

dpnp/dpnp_container.py

@@ -130,7 +130,7 @@ def asarray(
         )
 
         # return x1 if dpctl returns a zero copy of x1_obj
-        if array_obj is x1_obj:
+        if array_obj is x1_obj and isinstance(x1, dpnp_array):
             return x1
 
     return dpnp_array(array_obj.shape, buffer=array_obj, order=order)

tests/test_sycl_queue.py

@@ -1,10 +1,12 @@
 import dpctl
+import dpctl.tensor as dpt
 import numpy
 import pytest
 from dpctl.utils import ExecutionPlacementError
 from numpy.testing import assert_allclose, assert_array_equal, assert_raises
 
 import dpnp
+from dpnp.dpnp_array import dpnp_array
 
 from .helper import assert_dtype_allclose, get_all_dtypes, is_win_platform
 
@@ -1076,6 +1078,23 @@ def test_array_copy(device, func, device_param, queue_param):
     assert_sycl_queue_equal(result.sycl_queue, dpnp_data.sycl_queue)
 
 
+@pytest.mark.parametrize(
+    "copy", [True, False, None], ids=["True", "False", "None"]
+)
+@pytest.mark.parametrize(
+    "device",
+    valid_devices,
+    ids=[device.filter_string for device in valid_devices],
+)
+def test_array_creation_from_dpctl(copy, device):
+    dpt_data = dpt.ones((3, 3), device=device)
+
+    result = dpnp.array(dpt_data, copy=copy)
+
+    assert_sycl_queue_equal(result.sycl_queue, dpt_data.sycl_queue)
+    assert isinstance(result, dpnp_array)
+
+
 @pytest.mark.parametrize(
     "device",
     valid_devices,

tests/test_usm_type.py

@@ -1,5 +1,6 @@
 from math import prod
 
+import dpctl.tensor as dpt
 import dpctl.utils as du
 import pytest
 
@@ -180,6 +181,17 @@ def test_array_copy(func, usm_type_x, usm_type_y):
     assert y.usm_type == usm_type_y
 
 
+@pytest.mark.parametrize(
+    "copy", [True, False, None], ids=["True", "False", "None"]
+)
+@pytest.mark.parametrize("usm_type_x", list_of_usm_types, ids=list_of_usm_types)
+def test_array_creation_from_dpctl(copy, usm_type_x):
+    x = dpt.ones((3, 3), usm_type=usm_type_x)
+    y = dp.array(x, copy=copy)
+
+    assert y.usm_type == usm_type_x
+
+
 @pytest.mark.parametrize(
     "usm_type_start", list_of_usm_types, ids=list_of_usm_types
 )