Add a runner to load raw Protobuf tests. (#13)

* Add run-bmv2-proto-test.py script.

* Add testing script.

* Read in the initial configuration.

* Add a git ignore file.

Author: fruffy

.gitignore

@@ -30,3 +30,134 @@
 *.exe
 *.out
 *.app
+
+
+
+
+############ PYTHON
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/

targets/bmv2/test/ptf_protobuf_base.py

@@ -0,0 +1,58 @@
+from functools import wraps
+from typing import Any, List
+
+import google.protobuf.text_format
+import grpc
+from p4.config.v1 import p4info_pb2
+from p4.v1 import p4runtime_pb2, p4runtime_pb2_grpc
+from ptf import config
+from ptf import testutils as ptfutils
+from ptf.base_tests import BaseTest
+from ptf.mask import Mask
+
+from tools import testutils
+from tools.ptf import base_test as bt
+
+
+class AbstractTest(bt.P4RuntimeTest):
+    @bt.autocleanup
+    def setUp(self) -> None:
+        bt.P4RuntimeTest.setUp(self)
+        success = bt.P4RuntimeTest.updateConfig(self)
+        assert success
+
+    def tearDown(self) -> None:
+        bt.P4RuntimeTest.tearDown(self)
+
+    def createWriteRequest(self) -> p4runtime_pb2.WriteRequest:
+        req = p4runtime_pb2.WriteRequest()
+        req.device_id = self.device_id
+        return req
+
+    def setupCtrlPlane(self) -> None:
+        initial_config_path = ptfutils.test_param_get("initial_config_file")
+        assert initial_config_path is not None
+        req = self.createWriteRequest()
+        with open(initial_config_path, "r", encoding="utf-8") as initial_config_file:
+            google.protobuf.text_format.Merge(
+                initial_config_file.read(), req, allow_unknown_field=True
+            )
+        testutils.log.info("Initial configuration %s", req)
+        raise NotImplementedError(
+            "Fill the missing parts of this method where you send this request to BMv2."
+        )
+
+    def sendCtrlPlaneUpdate(self) -> None:
+        pass
+
+    def runTestImpl(self) -> None:
+        testutils.log.info("Configuring control plane...")
+        self.setupCtrlPlane()
+
+        testutils.log.info("Sending control plane updates...")
+        self.sendCtrlPlaneUpdate()
+
+
+class SetUpControlPlaneTest(AbstractTest):
+    def runTest(self) -> None:
+        self.runTestImpl()