fix arduino tests, broken by #9246.

Author: areusch

apps/microtvm/arduino/template_project/microtvm_api_server.py

@@ -203,8 +203,12 @@ def _disassemble_mlf(self, mlf_tar_path, source_dir):
 
             # Copy C files from model. The filesnames and quantity
             # depend on the target string, so we just copy all c files
+            include_dir = mlf_unpacking_dir / "codegen" / "host" / "include"
+            for file in include_dir.rglob("*.h"):
+                shutil.copy(file, model_dir)
+
             source_dir = mlf_unpacking_dir / "codegen" / "host" / "src"
-            for file in source_dir.rglob(f"*.c"):
+            for file in source_dir.rglob("*.c"):
                 shutil.copy(file, model_dir)
 
             # Return metadata.json for use in templating

tests/micro/arduino/test_arduino_workflow.py

@@ -71,7 +71,7 @@ def test_project_folder_structure(project_dir, project):
 def test_project_model_integrity(project_dir, project):
     model_dir = project_dir / "src" / "model"
     assert _get_directory_elements(model_dir) == set(
-        ["default_lib0.c", "default_lib1.c", "model.tar"]
+        ["tvmgen_default.h", "default_lib0.c", "default_lib1.c", "model.tar"]
     )
 
 

tests/micro/arduino/test_utils.py

@@ -82,7 +82,7 @@ def make_kws_project(board, arduino_cli_cmd, tvm_debug, workspace_dir):
     mod, params = relay.frontend.from_tflite(tflite_model)
     target = tvm.target.target.micro(model)
     runtime = Runtime("crt")
-    executor = Executor("aot", {"unpacked-api": True})
+    executor = Executor("aot", {"unpacked-api": True, "interface-api": "c"})
 
     with tvm.transform.PassContext(opt_level=3, config={"tir.disable_vectorize": True}):
         mod = relay.build(mod, target, runtime=runtime, executor=executor, params=params)