Add special dtype check in tests for scipy>=0.16

Author: antonwolfy

dpnp/tests/helper.py

@@ -3,6 +3,7 @@
 import dpctl
 import numpy
 import pytest
+import scipy
 from numpy.testing import assert_allclose, assert_array_equal
 
 import dpnp
@@ -498,3 +499,7 @@ def requires_intel_mkl_version(version):
 
     build_deps = numpy.show_config(mode="dicts")["Build Dependencies"]
     return build_deps["blas"]["version"] >= version
+
+
+def scipy_version():
+    return scipy.__version__

dpnp/tests/test_special.py

@@ -1,16 +1,16 @@
-import math
-
 import numpy
 import pytest
 import scipy
-from numpy.testing import assert_allclose, assert_almost_equal
+from numpy.testing import assert_allclose
 
 import dpnp
 
 from .helper import (
+    assert_dtype_allclose,
     generate_random_numpy_array,
     get_all_dtypes,
     get_complex_dtypes,
+    scipy_version,
 )
 
 
@@ -25,7 +25,13 @@ def test_basic(self, dt):
 
         result = dpnp.special.erf(ia)
         expected = scipy.special.erf(a)
-        assert_almost_equal(result, expected)
+
+        # scipy >= 0.16.0 returns float64, but dpnp returns float32
+        to_float32 = dt in (dpnp.bool, dpnp.float16)
+        only_type_kind = scipy_version() >= "0.16.0" and to_float32
+        assert_dtype_allclose(
+            result, expected, check_only_type_kind=only_type_kind
+        )
 
     def test_nan_inf(self):
         a = numpy.array([numpy.nan, -numpy.inf, numpy.inf])

dpnp/tests/test_strides.py

@@ -17,6 +17,7 @@
     get_integer_dtypes,
     get_integer_float_dtypes,
     numpy_version,
+    scipy_version,
 )
 
 
@@ -174,7 +175,10 @@ def test_erf(dtype, stride):
 
     result = dpnp.special.erf(ia)
     expected = scipy.special.erf(a)
-    assert_dtype_allclose(result, expected)
+
+    # scipy >= 0.16.0 returns float64, but dpnp returns float32
+    only_type_kind = scipy_version() >= "0.16.0" and (dtype == dpnp.float16)
+    assert_dtype_allclose(result, expected, check_only_type_kind=only_type_kind)
 
 
 @pytest.mark.parametrize("dtype", get_float_complex_dtypes())