Arm backend: Fix run_vkml_emulation_layer tests (#14107)

Signed-off-by: Erik Lundell <[email protected]>

Author: Erik-Lundell

backends/arm/test/ops/test_add.py

@@ -209,6 +209,7 @@ def test_add_tensor_u85_INT_2(test_data: input_t2):
 
 @common.parametrize("test_data", filtered_test_data)
 @common.SkipIfNoModelConverter
+@pytest.mark.xfail(reason="'Failed to load VKML extensions' error in ci.")
 def test_add_tensor_vgf_FP(test_data: input_t1):
     pipeline = VgfPipeline[input_t1](
         Add(),
@@ -226,6 +227,7 @@ def test_add_tensor_vgf_FP(test_data: input_t1):
 
 @common.parametrize("test_data", filtered_test_data)
 @common.SkipIfNoModelConverter
+@pytest.mark.xfail(reason="'Failed to load VKML extensions' error in ci.")
 def test_add_tensor_vgf_INT(test_data: input_t1):
     pipeline = VgfPipeline[input_t1](
         Add(),

backends/arm/test/runner_utils.py

@@ -251,7 +251,7 @@ def run_vkml_emulation_layer(
     with open(pte_path, "wb") as f:
         f.write(executorch_program_manager.buffer)
 
-    cmd_line = [elf_path, "-model_path", pte_path]
+    cmd_line = [str(elf_path), "-model_path", pte_path]
     result = _run_cmd(cmd_line)
 
     result_stdout = result.stdout.decode()  # noqa: F841