edits following review

model/testing/src/icon4py/model/testing/helpers.py

@@ -15,7 +15,7 @@
 import numpy as np
 import pytest
 from gt4py._core.definitions import is_scalar_type
-from gt4py.next import constructors
+from gt4py.next import backend as gtx_backend, constructors
 from gt4py.next.ffront.decorator import Program
 from typing_extensions import Buffer
 
@@ -38,26 +38,26 @@ def grid(request):
     return request.param
 
 
-def is_python(backend) -> bool:
+def is_python(backend: gtx_backend.Backend | None) -> bool:
     # want to exclude python backends:
     #   - cannot run on embedded: because of slicing
     #   - roundtrip is very slow on large grid
     return is_embedded(backend) or is_roundtrip(backend)
 
 
-def is_dace(backend) -> bool:
+def is_dace(backend: gtx_backend.Backend | None) -> bool:
     return backend.name.startswith("run_dace_") if backend else False
 
 
-def is_embedded(backend) -> bool:
+def is_embedded(backend: None) -> bool:
     return backend is None
 
 
-def is_roundtrip(backend) -> bool:
+def is_roundtrip(backend: gtx_backend.Backend | None) -> bool:
     return backend.name == "roundtrip" if backend else False
 
 
-def extract_backend_name(backend) -> str:
+def extract_backend_name(backend: gtx_backend.Backend | None) -> str:
     return "embedded" if backend is None else backend.name
 
 
@@ -78,10 +78,11 @@ def allocate_data(backend, input_data):
     return input_data
 
 
-def match_marker(
-    markers: tuple[pytest.Mark | pytest.MarkDecorator, ...], backend: str, is_datatest: bool = False
+def apply_markers(
+    markers: tuple[pytest.Mark | pytest.MarkDecorator, ...],
+    backend: str | None,
+    is_datatest: bool = False,
 ):
-    backend = None if backend == "embedded" else backend
     for marker in markers:
         match marker.name:
             case "embedded_remap_error" if is_embedded(backend):
@@ -108,7 +109,7 @@ class Output:
 
 def _test_validation(self, grid, backend, input_data):
     if self.MARKERS is not None:
-        match_marker(self.MARKERS, backend)
+        apply_markers(self.MARKERS, backend)
 
     connectivities = {dim: data_alloc.as_numpy(table) for dim, table in grid.connectivities.items()}
     reference_outputs = self.reference(
@@ -141,7 +142,7 @@ def _test_validation(self, grid, backend, input_data):
 
     def _test_execution_benchmark(self, pytestconfig, grid, backend, input_data, benchmark):
         if self.MARKERS is not None:
-            match_marker(self.MARKERS, backend)
+            apply_markers(self.MARKERS, backend)
 
         if pytestconfig.getoption(
             "--benchmark-disable"

model/testing/src/icon4py/model/testing/pytest_config.py

@@ -13,7 +13,7 @@
     GLOBAL_EXPERIMENT,
     REGIONAL_EXPERIMENT,
 )
-from icon4py.model.testing.helpers import match_marker
+from icon4py.model.testing.helpers import apply_markers
 
 
 def _check_backend_validity(backend_name: str) -> None:
@@ -86,7 +86,7 @@ def pytest_addoption(parser):
 
 
 def pytest_runtest_setup(item):
-    match_marker(
+    apply_markers(
         item.own_markers,
         model_backends.BACKENDS[item.config.getoption("--backend")],
         is_datatest=item.config.getoption("--datatest"),