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# Copyright 2022 Google LLC

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# https://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

import nox

import os

import pathlib

PYTHON_VERSIONS = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]

PROTOBUF_IMPLEMENTATIONS = ["python", "upb"]

TEST_COMMAND = [

"coverage",

"run",

"--append",

"-m",

"unittest",

"discover",

"--buffer",

"-s=tests",

"-p",

"*_test.py",

]

COVERAGE_COMMAND = [

"coverage",

"report",

"-m",

"--omit=.nox/*,examples/*,*/__init__.py",

]

TEST_DEPENDENCIES = [

"pyfakefs>=5.0.0,<6.0",

"coverage==6.5.0",

]

CURRENT_DIR = pathlib.Path(__file__).parent.absolute()

CONSTRAINTS_DIR = os.path.join(CURRENT_DIR, "tests", "constraints")

nox.options.default_venv_backend = "uv|virtualenv"

@nox.session(python=PYTHON_VERSIONS)

@nox.parametrize("protobuf_implementation", PROTOBUF_IMPLEMENTATIONS)

def tests(session, protobuf_implementation):

session.install("-e", ".")

# modules for testing

session.install(*TEST_DEPENDENCIES)

session.run(

*TEST_COMMAND,

env={

"PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,

},

)

session.run(*COVERAGE_COMMAND)

# This session runs all the unit tests but with the lowest-possible versions

# of supported dependencies that are published by Google.

@nox.session(python=PYTHON_VERSIONS)

@nox.parametrize("protobuf_implementation", PROTOBUF_IMPLEMENTATIONS)

def tests_minimum_dependency_versions(session, protobuf_implementation):

if session.python == "3.14":

# If running Python 3.14 use the constraints file intended for it.

filename = "constraints-3.14.txt"

elif session.python == "3.13":

# If running Python 3.13 use the constraints file intended for it.

filename = "constraints-3.13.txt"

else:

# If runnning a Python version other than 3.13 then use the constraints

# file intended for all versions previous to 3.13.

# TODO: Update this when new major versions of Python are adopted.

filename = "constraints-less-than-3.13.txt"

constraints_file = os.path.join(CONSTRAINTS_DIR, "minimums", filename)

session.install("-e", ".")

session.install(*TEST_DEPENDENCIES, "-c", constraints_file)

session.run(

*TEST_COMMAND,

env={

"PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,

},

)

session.run(*COVERAGE_COMMAND)