Add pytest_configure to share a global variable

Author: vlad-perevezentsev

tests/conftest.py

@@ -29,6 +29,7 @@
 import dpnp
 import numpy
 import pytest
+from .helper import check_support_float64
 
 
 skip_mark = pytest.mark.skip(reason='Skipping test.')
@@ -77,3 +78,6 @@ def pytest_collection_modifyitems(config, items):
 @pytest.fixture
 def allow_fall_back_on_numpy(monkeypatch):
     monkeypatch.setattr(dpnp.config, '__DPNP_RAISE_EXCEPION_ON_NUMPY_FALLBACK__', 0)
+
+def pytest_configure():
+    pytest.floatMAX = "float64" if check_support_float64() else "float32"

tests/helper.py

@@ -32,8 +32,16 @@ def get_all_dtypes(no_bool=False,
         dtypes.append(dpnp.complex64)
         if dev.has_aspect_fp64:
             dtypes.append(dpnp.complex128)
-    
+
     # add None value to validate a default dtype
     if not no_none:
         dtypes.append(None)
     return dtypes
+
+def check_support_float64():
+    """
+    Returns True if the default device supports 64-bit precision floating
+    point operations, False otherwise.
+    """
+
+    return dpctl.select_default_device().has_aspect_fp64