feat(test): add py_itf_unittest rule and restructure test directory

- Introduce py_itf_unittest macro: lightweight py_test wrapper with no
  ITF plugin infrastructure, pytest-mock included by default
- Export py_itf_unittest via defs.bzl alongside py_itf_test
- Move existing tests to test/integration/
- Add test/unit/ with test_ping (mocker) and test_qemu_config_schema
  (pure Pydantic model validation, no file I/O)
- Add integration-level test_qemu_config_schema (load_configuration
  with real JSON files) and test_attribute_plugin
- Set coverage instrumentation filter to //score/itf[/:]

Author: clanghans

.bazelrc

@@ -3,6 +3,9 @@ common --registry=https://bcr.bazel.build
 
 test --test_output=errors
 
+coverage --combined_report=lcov
+coverage --instrumentation_filter="//score/itf[/:]"
+
 build:x86_64-qnx --incompatible_strict_action_env
 build:x86_64-qnx --platforms=@score_bazel_platforms//:x86_64-qnx-sdp_8.0.0-posix
 build:x86_64-qnx --sandbox_writable_path=/var/tmp

bazel/py_itf_unittest.bzl

@@ -0,0 +1,51 @@
+# *******************************************************************************
+# Copyright (c) 2026 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+"""Lightweight macro for running unit tests via pytest without ITF plugin infrastructure."""
+
+load("@rules_python//python:defs.bzl", "py_test")
+
+def py_itf_unittest(name, srcs, deps = [], data = [], env = {}, pytest_config = None, **kwargs):
+    """Thin py_test wrapper for unit tests that do not need ITF plugin machinery.
+
+    Unlike py_itf_test, this macro creates a direct py_test with no launcher
+    script or plugin infrastructure, so Bazel coverage works out of the box.
+
+    Args:
+        name: Target name.
+        srcs: Python test source files.
+        deps: Additional Python dependencies.
+        data: Data files available at runtime.
+        env: Environment variables for the test.
+        pytest_config: Optional pytest config file. Defaults to @score_itf//:pytest.ini.
+        **kwargs: Forwarded to py_test (e.g. size, timeout, tags).
+    """
+    pytest_bootstrap = Label("@score_itf//:main.py")
+    if not pytest_config:
+        pytest_config = Label("@score_itf//:pytest.ini")
+
+    py_test(
+        name = name,
+        srcs = [pytest_bootstrap] + srcs,
+        main = pytest_bootstrap,
+        args = [
+            "-c $(location %s)" % pytest_config,
+            "-p no:cacheprovider",
+            "--show-capture=no",
+            "--junitxml=$$XML_OUTPUT_FILE",
+        ] + ["$(location %s)" % x for x in srcs],
+        deps = ["@score_itf//:itf", "@itf_pip//pytest_mock"] + deps,
+        data = [pytest_config] + data,
+        env = {"PYTHONDONOTWRITEBYTECODE": "1"} | env,
+        **kwargs
+    )

defs.bzl

@@ -13,5 +13,7 @@
 """ITF public Bazel interface"""
 
 load("@score_itf//bazel:py_itf_test.bzl", local_py_itf_test = "py_itf_test")
+load("@score_itf//bazel:py_itf_unittest.bzl", local_py_itf_unittest = "py_itf_unittest")
 
 py_itf_test = local_py_itf_test
+py_itf_unittest = local_py_itf_unittest

examples/examples/itf/test_dlt.py

@@ -1 +1 @@
-../../../test/test_dlt.py
+../../../test/integration/test_dlt.py

examples/examples/itf/test_docker.py

@@ -1 +1 @@
-../../../test/test_docker.py
+../../../test/integration/test_docker.py

examples/examples/itf/test_qemu.py

@@ -1 +1 @@
-../../../test/test_qemu.py
+../../../test/integration/test_qemu.py

test/BUILD test/integration/BUILDtest/BUILD renamed to test/integration/BUILD

@@ -12,6 +12,25 @@
 # *******************************************************************************
 load("//:defs.bzl", "py_itf_test")
 
+py_itf_test(
+    name = "test_attribute_plugin",
+    srcs = ["test_attribute_plugin.py"],
+    deps = ["//score/itf/plugins:attribute_plugin"],
+)
+
+py_itf_test(
+    name = "test_qemu_config_schema",
+    srcs = ["test_qemu_config_schema.py"],
+    data = [
+        "//test/resources:qemu_bridge_config",
+        "//test/resources:qemu_port_forwarding_config",
+    ],
+    deps = [
+        "//score/itf/plugins/qemu",
+        "@rules_python//python/runfiles",
+    ],
+)
+
 py_itf_test(
     name = "test_rules_are_working_correctly",
     srcs = [
@@ -183,35 +202,3 @@ test_suite(
         ":test_ssh_configurable",
     ],
 )
-
-py_itf_test(
-    name = "test_ping",
-    srcs = [
-        "test_ping.py",
-    ],
-)
-
-py_itf_test(
-    name = "test_qemu_config_schema",
-    srcs = [
-        "test_qemu_config_schema.py",
-    ],
-    data = [
-        "//test/resources:qemu_bridge_config",
-        "//test/resources:qemu_port_forwarding_config",
-    ],
-    deps = [
-        "//score/itf/plugins/qemu",
-        "@rules_python//python/runfiles",
-    ],
-)
-
-py_itf_test(
-    name = "test_attribute_plugin",
-    srcs = [
-        "test_attribute_plugin.py",
-    ],
-    plugins = [
-        "//score/itf/plugins:attribute_plugin",
-    ],
-)