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Schaffner" To: CC: , , , Tobias Schaffner Subject: [PATCH v3 2/4] create a minimal python unittest infrastructure Date: Mon, 22 May 2023 08:55:29 +0200 Message-ID: <20230522065531.2300448-3-tobias.schaffner@siemens.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230522065531.2300448-1-tobias.schaffner@siemens.com> References: <20230522065531.2300448-1-tobias.schaffner@siemens.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Return-Path: tobias.schaffner@siemens.com X-Originating-IP: [139.22.37.93] X-ClientProxiedBy: DEMCHDC8WAA.ad011.siemens.net (139.25.226.104) To DEMCHDC8WBA.ad011.siemens.net (139.25.226.105) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1EUR01FT102:EE_|VI1PR10MB3197:EE_ X-MS-Office365-Filtering-Correlation-Id: ce035dd9-8c74-4228-d503-08db5a9198b4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:194.138.21.75;CTRY:DE;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:hybrid.siemens.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(136003)(396003)(39860400002)(346002)(376002)(451199021)(40470700004)(46966006)(36840700001)(8676002)(8936002)(5660300002)(82310400005)(47076005)(36860700001)(186003)(16526019)(107886003)(1076003)(26005)(956004)(2616005)(336012)(86362001)(82960400001)(356005)(81166007)(82740400003)(40460700003)(41300700001)(40480700001)(6666004)(478600001)(4326008)(6916009)(36756003)(70586007)(70206006)(316002)(54906003)(2906002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 May 2023 06:55:58.0709 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ce035dd9-8c74-4228-d503-08db5a9198b4 X-MS-Exchange-CrossTenant-Id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=38ae3bcd-9579-4fd4-adda-b42e1495d55a;Ip=[194.138.21.75];Helo=[hybrid.siemens.com] X-MS-Exchange-CrossTenant-AuthSource: HE1EUR01FT102.eop-EUR01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR10MB3197 X-TUID: 3WlnjoLkvpUL From: Tobias Schaffner Add some some infrastructure for python unittesting. The unittest_isar module exposes a function that uses the bb.parse module to import python functions that are defined in bitbake files. Signed-off-by: Tobias Schaffner --- testsuite/unittests/README.md | 28 +++++++++++++++++++++ testsuite/unittests/bitbake.py | 37 ++++++++++++++++++++++++++++ testsuite/unittests/rootfs.py | 45 ++++++++++++++++++++++++++++++++++ 3 files changed, 110 insertions(+) create mode 100644 testsuite/unittests/README.md create mode 100644 testsuite/unittests/bitbake.py create mode 100644 testsuite/unittests/rootfs.py diff --git a/testsuite/unittests/README.md b/testsuite/unittests/README.md new file mode 100644 index 00000000..75a3bb01 --- /dev/null +++ b/testsuite/unittests/README.md @@ -0,0 +1,28 @@ +# Isar Unittests + +The unittest python module adds some simple infrastructure that allows to +unittest python functions defined in bitbake files. + +## Running the tests + +You can run the tests using avocado with `avocado --show=app,test run testsuite/unittests/` +or by using the buildin module with `python3 -m unittest discover testsuite/unittests/` + +## Creating new tests + +See the [unittest documentation](https://docs.python.org/3/library/unittest.html) +on how to create a test module and name it test_*bitbake_module_name*.py + +Use the function `load_function(file_name: str, function_name: str) -> Callable` +in the bitbake module to load the function. + +Example: +```python +from bitbake import load_function + +my_function = load_function("meta/classes/my_module.bbclass", "my_function") +my_function(arg1, arg2) +``` + +Use the [unittest.mock](https://docs.python.org/3/library/unittest.mock.html) +library to mock the bb modules as needed. diff --git a/testsuite/unittests/bitbake.py b/testsuite/unittests/bitbake.py new file mode 100644 index 00000000..1e2f685a --- /dev/null +++ b/testsuite/unittests/bitbake.py @@ -0,0 +1,37 @@ +# This software is a part of ISAR. +# Copyright (C) Siemens AG, 2023 +# +# SPDX-License-Identifier: MIT + +import sys +import pathlib +from typing import Callable + +location = pathlib.Path(__file__).parent.resolve() +sys.path.insert(0, "{}/../../bitbake/lib".format(location)) + +from bb.parse import handle +from bb.data import init + +# Modules added for reimport from testfiles +from bb.data_smart import DataSmart + + +def load_function(file_name: str, function_name: str) -> Callable: + """Load a python function defined in a bitbake file. + + Args: + file_name (str): The path to the file e.g. `meta/classes/my_special.bbclass`. + function_name (str): The name of the python function without braces e.g. `my_special_function` + + Returns: + Callable: The loaded function. + """ + d = init() + parse = handle("{}/../../{}".format(location, file_name), d) + if function_name not in parse: + raise KeyError("Function {} does not exist in {}".format( + function_name, file_name)) + namespace = {} + exec(parse[function_name], namespace) + return namespace[function_name] diff --git a/testsuite/unittests/rootfs.py b/testsuite/unittests/rootfs.py new file mode 100644 index 00000000..6c511493 --- /dev/null +++ b/testsuite/unittests/rootfs.py @@ -0,0 +1,45 @@ +# This software is a part of ISAR. +# Copyright (C) Siemens AG, 2023 +# +# SPDX-License-Identifier: MIT + +import tempfile +import pathlib +import shutil +import atexit + +temp_dirs = [] + + +class TemporaryRootfs: + """ A temporary rootfs folder that will be removed after the testrun. """ + + def __init__(self): + self._rootfs_path = tempfile.mkdtemp() + temp_dirs.append(self._rootfs_path) + + def path(self) -> str: + return self._rootfs_path + + def create_file(self, path: str, content: str) -> None: + """ Create a file with the given content. + + Args: + path (str): The path to the file e.g. `/etc/hostname`. + content (str): The content of the file e.g. `my_special_host` + + Returns: + None + """ + pathlib.Path(self._rootfs_path + + path).parent.mkdir(parents=True, exist_ok=True) + with open(self._rootfs_path + path, 'w') as file: + file.write(content) + + +def cleanup(): + for temp_dir in temp_dirs: + shutil.rmtree(temp_dir) + + +atexit.register(cleanup) -- 2.34.1