Update _call_func_cupy and remove resolve_special_scp

Author: vlad-perevezentsev

dpnp/tests/third_party/cupy/testing/_loops.py

@@ -71,7 +71,7 @@ def _call_func_cupy(impl, args, kw, name, sp_name, scipy_name):
     if sp_name:
         kw[sp_name] = cupyx.scipy.sparse
     if scipy_name:
-        kw[scipy_name] = cupy
+        kw[scipy_name] = cupy.scipy
     kw[name] = cupy
     result, error = _call_func(impl, args, kw)
     return result, error

dpnp/tests/third_party/cupyx/scipy_tests/linalg_tests/test_decomp_lu.py

@@ -49,7 +49,6 @@ def test_lu_factor(self, dtype):
         a_cpu = testing.shaped_random(self.shape, numpy, dtype=dtype)
         a_gpu = cupy.asarray(a_cpu)
         result_cpu = scipy.linalg.lu_factor(a_cpu)
-        # Originally used cupyx.scipy.linalg.lu_factor
         result_gpu = cupy.scipy.linalg.lu_factor(a_gpu)
         assert len(result_cpu) == len(result_gpu)
         assert result_cpu[0].dtype == result_gpu[0].dtype
@@ -177,8 +176,6 @@ def test_lu_solve(self, xp, scp, dtype):
         a_shape, b_shape = self.shapes
         A = testing.shaped_random(a_shape, xp, dtype=dtype)
         b = testing.shaped_random(b_shape, xp, dtype=dtype)
-        if scp == cupy:
-            scp = cupy.scipy
         lu = scp.linalg.lu_factor(A)
         return scp.linalg.lu_solve(lu, b, trans=self.trans)
 

dpnp/tests/third_party/cupyx/scipy_tests/special_tests/test_erf.py

@@ -1,7 +1,6 @@
 from __future__ import annotations
 
 import unittest
-from functools import wraps
 
 import numpy
 import pytest
@@ -17,19 +16,6 @@ def _boundary_inputs(boundary, rtol, atol):
     return [left, boundary, right]
 
 
-# Ensure `scp` exposes `.special` submodule:
-# use `dpnp.scipy` for DPNP, `scipy` for SciPy
-def resolve_special_scp(func):
-    @wraps(func)
-    def wrapper(*args, **kwargs):
-        scp = kwargs.get("scp")
-        if scp is not None and not hasattr(scp, "special"):
-            kwargs["scp"] = getattr(scp, "scipy", scp)  # dpnp -> dpnp.scipy
-        return func(*args, **kwargs)
-
-    return wrapper
-
-
 @testing.with_requires("scipy")
 class _TestBase:
 
@@ -67,7 +53,6 @@ class TestSpecial(unittest.TestCase, _TestBase):
     # scipy>=1.16: 'e -> d', which causes type_check=False
     @testing.for_dtypes(["e", "f", "d"])
     @testing.numpy_cupy_allclose(atol=1e-5, scipy_name="scp", type_check=False)
-    @resolve_special_scp
     def check_unary(self, name, xp, scp, dtype):
         import scipy.special
 
@@ -76,7 +61,6 @@ def check_unary(self, name, xp, scp, dtype):
 
     @testing.for_dtypes(["f", "d"])
     @testing.numpy_cupy_allclose(atol=1e-5, scipy_name="scp")
-    @resolve_special_scp
     def check_unary_random(self, name, xp, scp, dtype, scale, offset):
         import scipy.special
 
@@ -85,7 +69,6 @@ def check_unary_random(self, name, xp, scp, dtype, scale, offset):
 
     @testing.for_dtypes(["f", "d"])
     @testing.numpy_cupy_allclose(atol=1e-5, scipy_name="scp")
-    @resolve_special_scp
     def check_unary_boundary(self, name, xp, scp, dtype, boundary):
         import scipy.special