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# Copyright 2022 The Bazel Authors. All rights reserved.
#
# 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
#
# http://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.
"""This module contains the definition for the toolchains testing rules.
"""
load("//python:versions.bzl", "PLATFORMS", "TOOL_VERSIONS")
_WINDOWS_RUNNER_TEMPLATE = """\
@ECHO OFF
set PATHEXT=.COM;.EXE;.BAT
powershell.exe -c "& ./{interpreter_path} {run_acceptance_test_py}"
"""
def _acceptance_test_impl(ctx):
workspace = ctx.actions.declare_file("/".join([ctx.attr.python_version, "WORKSPACE"]))
ctx.actions.expand_template(
template = ctx.file._workspace_tmpl,
output = workspace,
substitutions = {"%python_version%": ctx.attr.python_version},
)
build_bazel = ctx.actions.declare_file("/".join([ctx.attr.python_version, "BUILD.bazel"]))
ctx.actions.expand_template(
template = ctx.file._build_bazel_tmpl,
output = build_bazel,
substitutions = {"%python_version%": ctx.attr.python_version},
)
python_version_test = ctx.actions.declare_file("/".join([ctx.attr.python_version, "python_version_test.py"]))
ctx.actions.symlink(
target_file = ctx.file._python_version_test,
output = python_version_test,
)
run_acceptance_test_py = ctx.actions.declare_file("/".join([ctx.attr.python_version, "run_acceptance_test.py"]))
ctx.actions.expand_template(
template = ctx.file._run_acceptance_test_tmpl,
output = run_acceptance_test_py,
substitutions = {
"%is_windows%": str(ctx.attr.is_windows),
"%python_version%": ctx.attr.python_version,
"%test_location%": "/".join([ctx.attr.test_location, ctx.attr.python_version]),
},
)
toolchain = ctx.toolchains["@bazel_tools//tools/python:toolchain_type"]
py3_runtime = toolchain.py3_runtime
interpreter_path = py3_runtime.interpreter_path
if not interpreter_path:
interpreter_path = py3_runtime.interpreter.short_path
if ctx.attr.is_windows:
executable = ctx.actions.declare_file("run_test_{}.bat".format(ctx.attr.python_version))
ctx.actions.write(
output = executable,
content = _WINDOWS_RUNNER_TEMPLATE.format(
interpreter_path = interpreter_path.replace("../", "external/"),
run_acceptance_test_py = run_acceptance_test_py.short_path,
),
is_executable = True,
)
else:
executable = ctx.actions.declare_file("run_test_{}.sh".format(ctx.attr.python_version))
ctx.actions.write(
output = executable,
content = "exec '{interpreter_path}' '{run_acceptance_test_py}'".format(
interpreter_path = interpreter_path,
run_acceptance_test_py = run_acceptance_test_py.short_path,
),
is_executable = True,
)
files = [
build_bazel,
executable,
python_version_test,
run_acceptance_test_py,
workspace,
] + ctx.files._distribution
return [DefaultInfo(
executable = executable,
files = depset(
direct = files,
transitive = [py3_runtime.files],
),
runfiles = ctx.runfiles(
files = files,
transitive_files = py3_runtime.files,
),
)]
_acceptance_test = rule(
implementation = _acceptance_test_impl,
doc = "A rule for the toolchain acceptance tests.",
attrs = {
"is_windows": attr.bool(
doc = "(Provided by the macro) Whether this is running under Windows or not.",
mandatory = True,
),
"python_version": attr.string(
doc = "The Python version to be used when requesting the toolchain.",
mandatory = True,
),
"test_location": attr.string(
doc = "(Provided by the macro) The value of native.package_name().",
mandatory = True,
),
"_build_bazel_tmpl": attr.label(
doc = "The BUILD.bazel template.",
allow_single_file = True,
default = Label("//python/tests/toolchains/workspace_template:BUILD.bazel.tmpl"),
),
"_distribution": attr.label(
doc = "The rules_python source distribution.",
default = Label("//:distribution"),
),
"_python_version_test": attr.label(
doc = "The python_version_test.py used to test the Python version.",
allow_single_file = True,
default = Label("//python/tests/toolchains/workspace_template:python_version_test.py"),
),
"_run_acceptance_test_tmpl": attr.label(
doc = "The run_acceptance_test.py template.",
allow_single_file = True,
default = Label("//python/tests/toolchains:run_acceptance_test.py.tmpl"),
),
"_workspace_tmpl": attr.label(
doc = "The WORKSPACE template.",
allow_single_file = True,
default = Label("//python/tests/toolchains/workspace_template:WORKSPACE.tmpl"),
),
},
test = True,
toolchains = ["@bazel_tools//tools/python:toolchain_type"],
)
def acceptance_test(python_version, **kwargs):
_acceptance_test(
is_windows = select({
"@bazel_tools//src/conditions:host_windows": True,
"//conditions:default": False,
}),
python_version = python_version,
test_location = native.package_name(),
**kwargs
)
# buildifier: disable=unnamed-macro
def acceptance_tests():
"""Creates a matrix of acceptance_test targets for all the toolchains.
"""
for python_version in TOOL_VERSIONS.keys():
for platform, meta in PLATFORMS.items():
if platform not in TOOL_VERSIONS[python_version]["sha256"]:
continue
acceptance_test(
name = "python_{python_version}_{platform}_test".format(
python_version = python_version.replace(".", "_"),
platform = platform,
),
python_version = python_version,
target_compatible_with = meta.compatible_with,
tags = ["acceptance-test"],
)
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