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pantsbuild / pants / 19377500035

14 Nov 2025 09:01PM UTC coverage: 80.078% (-0.2%) from 80.29%
19377500035

Pull #22890

github

web-flow
Merge 90397d509 into 42e1ebd41
Pull Request #22890: Updated all python subsystem constraints to 3.14

4 of 5 new or added lines in 5 files covered. (80.0%)

214 existing lines in 14 files now uncovered.

77661 of 96982 relevant lines covered (80.08%)

3.36 hits per line

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91.67
/src/python/pants/core/goals/update_build_files_test.py
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# Copyright 2021 Pants project contributors (see CONTRIBUTORS.md).
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# Licensed under the Apache License, Version 2.0 (see LICENSE).
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from __future__ import annotations
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from collections.abc import Iterable
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from pathlib import Path
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from textwrap import dedent
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import pytest
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from pants.backend.build_files.fmt.buildifier.subsystem import Buildifier
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from pants.backend.python.lint.black.subsystem import Black
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from pants.backend.python.lint.ruff.subsystem import Ruff
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from pants.backend.python.lint.yapf.subsystem import Yapf
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from pants.backend.python.subsystems.python_tool_base import get_lockfile_interpreter_constraints
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from pants.backend.python.util_rules import pex
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from pants.backend.python.util_rules.interpreter_constraints import InterpreterConstraints
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from pants.backend.python.util_rules.lockfile_metadata import PythonLockfileMetadata
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from pants.backend.python.util_rules.pex_requirements import LoadedLockfile, Lockfile
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from pants.core.goals.update_build_files import (
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    FormatWithBlackRequest,
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    FormatWithBuildifierRequest,
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    FormatWithRuffRequest,
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    FormatWithYapfRequest,
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    RewrittenBuildFile,
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    RewrittenBuildFileRequest,
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    UpdateBuildFilesGoal,
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    UpdateBuildFilesSubsystem,
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    format_build_file_with_black,
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    format_build_file_with_buildifier,
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    format_build_file_with_ruff,
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    format_build_file_with_yapf,
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    rewrite_build_file,
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    update_build_files,
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)
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from pants.core.target_types import GenericTarget
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from pants.core.util_rules import config_files
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from pants.engine.fs import EMPTY_DIGEST
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from pants.engine.rules import rule
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from pants.engine.unions import UnionRule
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from pants.option.ranked_value import Rank, RankedValue
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from pants.testutil.option_util import create_subsystem
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from pants.testutil.rule_runner import GoalRuleResult, RuleRunner, run_rule_with_mocks
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# ------------------------------------------------------------------------------------------
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# Generic goal
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# ------------------------------------------------------------------------------------------
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class MockRewriteAddLine(RewrittenBuildFileRequest):
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    pass
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class MockRewriteReverseLines(RewrittenBuildFileRequest):
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    pass
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@rule
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async def add_line(request: MockRewriteAddLine) -> RewrittenBuildFile:
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    return RewrittenBuildFile(
×
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        request.path, (*request.lines, "# added line"), change_descriptions=("Add a new line",)
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    )
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@rule
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async def reverse_lines(request: MockRewriteReverseLines) -> RewrittenBuildFile:
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    return RewrittenBuildFile(
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        request.path, tuple(reversed(request.lines)), change_descriptions=("Reverse lines",)
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    )
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@pytest.fixture
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def generic_goal_rule_runner() -> RuleRunner:
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    return RuleRunner(
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        rules=(
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            add_line,
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            reverse_lines,
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            rewrite_build_file,
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            format_build_file_with_ruff,
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            format_build_file_with_yapf,
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            update_build_files,
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            *config_files.rules(),
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            *pex.rules(),
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            # Ruff and Yapf are included, but Black isn't because
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            # that's the formatter we enable in pants.toml.
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            # These tests check that Ruff and Yapf are NOT invoked,
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            # but the other rewrite targets are invoked.
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            *Ruff.rules(),
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            *Yapf.rules(),
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            *UpdateBuildFilesSubsystem.rules(),
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            UnionRule(RewrittenBuildFileRequest, MockRewriteAddLine),
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            UnionRule(RewrittenBuildFileRequest, MockRewriteReverseLines),
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            UnionRule(RewrittenBuildFileRequest, FormatWithRuffRequest),
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            UnionRule(RewrittenBuildFileRequest, FormatWithYapfRequest),
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        )
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    )
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def test_goal_rewrite_mode(generic_goal_rule_runner: RuleRunner) -> None:
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    """Checks that we correctly write the changes and pipe fixers to each other."""
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    generic_goal_rule_runner.write_files({"BUILD": "# line\n", "dir/BUILD": "# line 1\n# line 2\n"})
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    result = generic_goal_rule_runner.run_goal_rule(UpdateBuildFilesGoal, args=["::"])
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    assert result.exit_code == 0
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    assert result.stdout == dedent(
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        """\
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        Updated BUILD:
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          - Add a new line
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          - Reverse lines
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        Updated dir/BUILD:
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          - Add a new line
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          - Reverse lines
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        """
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    )
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    assert (
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        Path(generic_goal_rule_runner.build_root, "BUILD").read_text() == "# added line\n# line\n"
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    )
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    assert (
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        Path(generic_goal_rule_runner.build_root, "dir/BUILD").read_text()
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        == "# added line\n# line 2\n# line 1\n"
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    )
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def test_goal_check_mode(generic_goal_rule_runner: RuleRunner) -> None:
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    """Checks that we correctly set the exit code and pipe fixers to each other."""
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    generic_goal_rule_runner.write_files({"BUILD": "# line\n", "dir/BUILD": "# line 1\n# line 2\n"})
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    result = generic_goal_rule_runner.run_goal_rule(
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        UpdateBuildFilesGoal,
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        global_args=["--pants-bin-name=./custom_pants"],
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        args=["--check", "::"],
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    )
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    assert result.exit_code == 1
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    assert result.stdout == dedent(
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        """\
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        Would update BUILD:
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          - Add a new line
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          - Reverse lines
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        Would update dir/BUILD:
139
          - Add a new line
140
          - Reverse lines
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142
        To fix `update-build-files` failures, run `./custom_pants update-build-files`.
143
        """
144
    )
145
    assert Path(generic_goal_rule_runner.build_root, "BUILD").read_text() == "# line\n"
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    assert (
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        Path(generic_goal_rule_runner.build_root, "dir/BUILD").read_text() == "# line 1\n# line 2\n"
148
    )
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150

151
def test_get_lockfile_interpreter_constraints() -> None:
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    default_metadata = PythonLockfileMetadata.new(
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        valid_for_interpreter_constraints=InterpreterConstraints(["==2.7.*"]),
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        requirements=set(),
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        requirement_constraints=set(),
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        only_binary=set(),
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        no_binary=set(),
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        manylinux=None,
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        excludes=set(),
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        overrides=set(),
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        sources=set(),
162
    )
163

164
    def assert_ics(
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165
        lckfile: str,
166
        expected: Iterable[str],
167
        *,
168
        ics: RankedValue = RankedValue(Rank.HARDCODED, list(Black.default_interpreter_constraints)),
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        metadata: PythonLockfileMetadata | None = default_metadata,
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    ) -> None:
171
        black = create_subsystem(
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            Black,
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            lockfile=lckfile,
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            interpreter_constraints=ics,
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            version="v",
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            requirements=["v"],
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            install_from_resolve=None,
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            extra_requirements=[],
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        )
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        loaded_lock = LoadedLockfile(
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            EMPTY_DIGEST,
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            "black.lock",
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            metadata=metadata,
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            requirement_estimate=1,
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            is_pex_native=True,
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            as_constraints_strings=None,
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            original_lockfile=Lockfile(
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                "black.lock", url_description_of_origin="foo", resolve_name="black"
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            ),
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        )
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        result = run_rule_with_mocks(
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            get_lockfile_interpreter_constraints,
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            rule_args=[black],
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            mock_calls={
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                "pants.backend.python.util_rules.pex_requirements.load_lockfile": lambda _: loaded_lock,
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            },
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        )
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        assert result == InterpreterConstraints(expected)
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    # If ICs are set by user, always use those.
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    assert_ics("black.lock", ["==3.8.*"], ics=RankedValue(Rank.CONFIG, ["==3.8.*"]))
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    # Otherwise use what's in the lockfile metadata.
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    assert_ics("black.lock", ["==2.7.*"])
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205

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# ------------------------------------------------------------------------------------------
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# Black formatter fixer
208
# ------------------------------------------------------------------------------------------
209

210
# See black/rules_integration_test.py for why we set LANG and LC_ALL.
211
BLACK_ENV_INHERIT = {"PATH", "PYENV_ROOT", "HOME", "LANG", "LC_ALL"}
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213

214
@pytest.fixture
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215
def black_rule_runner() -> RuleRunner:
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216
    return RuleRunner(
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        rules=(
218
            rewrite_build_file,
219
            format_build_file_with_black,
220
            format_build_file_with_ruff,
221
            format_build_file_with_yapf,
222
            update_build_files,
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            *config_files.rules(),
224
            *pex.rules(),
225
            *Black.rules(),
226
            # Even though Ruff and Yapf are included here,
227
            # only Black should be used for formatting.
228
            *Ruff.rules(),
229
            *Yapf.rules(),
230
            *UpdateBuildFilesSubsystem.rules(),
231
            UnionRule(RewrittenBuildFileRequest, FormatWithBlackRequest),
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            UnionRule(RewrittenBuildFileRequest, FormatWithRuffRequest),
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            UnionRule(RewrittenBuildFileRequest, FormatWithYapfRequest),
234
        ),
235
        target_types=[GenericTarget],
236
    )
237

238

239
def test_black_fixer_fixes(black_rule_runner: RuleRunner) -> None:
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240
    black_rule_runner.write_files({"BUILD": "target( name =  't' )"})
1✔
241
    result = black_rule_runner.run_goal_rule(
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242
        UpdateBuildFilesGoal, args=["::"], env_inherit=BLACK_ENV_INHERIT
243
    )
UNCOV
244
    assert result.exit_code == 0
×
UNCOV
245
    assert result.stdout == dedent(
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246
        """\
247
        Updated BUILD:
248
          - Format with Black
249
        """
250
    )
UNCOV
251
    assert Path(black_rule_runner.build_root, "BUILD").read_text() == 'target(name="t")\n'
×
252

253

254
def test_black_fixer_noops(black_rule_runner: RuleRunner) -> None:
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255
    black_rule_runner.write_files({"BUILD": 'target(name="t")\n'})
1✔
256
    result = black_rule_runner.run_goal_rule(
1✔
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        UpdateBuildFilesGoal, args=["::"], env_inherit=BLACK_ENV_INHERIT
258
    )
UNCOV
259
    assert result.exit_code == 0
×
UNCOV
260
    assert Path(black_rule_runner.build_root, "BUILD").read_text() == 'target(name="t")\n'
×
261

262

263
def test_black_fixer_args(black_rule_runner: RuleRunner) -> None:
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264
    black_rule_runner.write_files({"BUILD": "target(name='t')\n"})
1✔
265
    result = black_rule_runner.run_goal_rule(
1✔
266
        UpdateBuildFilesGoal,
267
        global_args=["--black-args='--skip-string-normalization'"],
268
        args=["::"],
269
        env_inherit=BLACK_ENV_INHERIT,
270
    )
UNCOV
271
    assert result.exit_code == 0
×
UNCOV
272
    assert Path(black_rule_runner.build_root, "BUILD").read_text() == "target(name='t')\n"
×
273

274

275
def test_black_config(black_rule_runner: RuleRunner) -> None:
1✔
276
    black_rule_runner.write_files(
1✔
277
        {
278
            "pyproject.toml": "[tool.black]\nskip-string-normalization = 'true'\n",
279
            "BUILD": "target(name='t')\n",
280
        },
281
    )
282
    result = black_rule_runner.run_goal_rule(
1✔
283
        UpdateBuildFilesGoal, args=["::"], env_inherit=BLACK_ENV_INHERIT
284
    )
UNCOV
285
    assert result.exit_code == 0
×
UNCOV
286
    assert Path(black_rule_runner.build_root, "BUILD").read_text() == "target(name='t')\n"
×
287

288

289
# ------------------------------------------------------------------------------------------
290
# Ruff formatter fixer
291
# ------------------------------------------------------------------------------------------
292

293

294
def run_ruff(
1✔
295
    build_content: str, *, extra_args: list[str] | None = None
296
) -> tuple[GoalRuleResult, str]:
297
    """Returns the Goal's result and contents of the BUILD file after execution."""
298
    rule_runner = RuleRunner(
1✔
299
        rules=(
300
            rewrite_build_file,
301
            format_build_file_with_ruff,
302
            update_build_files,
303
            *config_files.rules(),
304
            *pex.rules(),
305
            *Ruff.rules(),
306
            *UpdateBuildFilesSubsystem.rules(),
307
            UnionRule(RewrittenBuildFileRequest, FormatWithRuffRequest),
308
        ),
309
        target_types=[GenericTarget],
310
    )
311
    rule_runner.write_files({"BUILD": build_content})
1✔
312
    goal_result = rule_runner.run_goal_rule(
1✔
313
        UpdateBuildFilesGoal,
314
        args=["--update-build-files-formatter=ruff", "::"],
315
        global_args=extra_args or (),
316
        env_inherit=BLACK_ENV_INHERIT,
317
    )
318
    rewritten_build = Path(rule_runner.build_root, "BUILD").read_text()
1✔
319
    return goal_result, rewritten_build
1✔
320

321

322
def test_ruff_fixer_fixes() -> None:
1✔
323
    result, build = run_ruff("target( name =  't' )")
1✔
324
    assert result.exit_code == 0
1✔
325
    assert result.stdout == dedent(
1✔
326
        """\
327
        Updated BUILD:
328
          - Format with Ruff
329
        """
330
    )
331
    assert build == 'target(name="t")\n'
1✔
332

333

334
def test_ruff_fixer_noops() -> None:
1✔
335
    result, build = run_ruff('target(name="t")\n')
1✔
336
    assert result.exit_code == 0
1✔
337
    assert not result.stdout
1✔
338
    assert build == 'target(name="t")\n'
1✔
339

340

341
# ------------------------------------------------------------------------------------------
342
# Buildifier formatter fixer
343
# ------------------------------------------------------------------------------------------
344

345

346
def run_buildifier(
1✔
347
    build_content: str, *, extra_args: list[str] | None = None
348
) -> tuple[GoalRuleResult, str]:
349
    """Returns the Goal's result and contents of the BUILD file after execution."""
350
    rule_runner = RuleRunner(
1✔
351
        rules=(
352
            rewrite_build_file,
353
            format_build_file_with_buildifier,
354
            update_build_files,
355
            *config_files.rules(),
356
            *pex.rules(),
357
            *Buildifier.rules(),
358
            *UpdateBuildFilesSubsystem.rules(),
359
            UnionRule(RewrittenBuildFileRequest, FormatWithBuildifierRequest),
360
        ),
361
        target_types=[GenericTarget],
362
    )
363
    rule_runner.write_files({"BUILD": build_content})
1✔
364
    goal_result = rule_runner.run_goal_rule(
1✔
365
        UpdateBuildFilesGoal,
366
        args=[f"--update-build-files-formatter={Buildifier.options_scope}", "::"],
367
        global_args=extra_args or (),
368
        env_inherit=BLACK_ENV_INHERIT,
369
    )
370
    rewritten_build = Path(rule_runner.build_root, "BUILD").read_text()
1✔
371
    return goal_result, rewritten_build
1✔
372

373

374
def test_buildifier_fixer_fixes() -> None:
1✔
375
    result, build = run_buildifier("target(name='t')")
1✔
376
    assert result.exit_code == 0
1✔
377
    assert result.stdout == dedent(
1✔
378
        f"""\
379
        Updated BUILD:
380
          - Format with {Buildifier.name}
381
        """
382
    )
383
    assert build == 'target(name = "t")\n'
1✔
384

385

386
def test_buildifier_fixer_noops() -> None:
1✔
387
    result, build = run_buildifier('target(name = "t")\n')
1✔
388
    assert result.exit_code == 0
1✔
389
    assert not result.stdout
1✔
390
    assert build == 'target(name = "t")\n'
1✔
391

392

393
# ------------------------------------------------------------------------------------------
394
# Yapf formatter fixer
395
# ------------------------------------------------------------------------------------------
396

397

398
def run_yapf(
1✔
399
    build_content: str, *, extra_args: list[str] | None = None
400
) -> tuple[GoalRuleResult, str]:
401
    """Returns the Goal's result and contents of the BUILD file after execution."""
402
    rule_runner = RuleRunner(
1✔
403
        rules=(
404
            rewrite_build_file,
405
            format_build_file_with_yapf,
406
            update_build_files,
407
            *config_files.rules(),
408
            *pex.rules(),
409
            *Yapf.rules(),
410
            *UpdateBuildFilesSubsystem.rules(),
411
            UnionRule(RewrittenBuildFileRequest, FormatWithYapfRequest),
412
        ),
413
        target_types=[GenericTarget],
414
    )
415
    rule_runner.write_files({"BUILD": build_content})
1✔
416
    goal_result = rule_runner.run_goal_rule(
1✔
417
        UpdateBuildFilesGoal,
418
        args=["--update-build-files-formatter=yapf", "::"],
419
        global_args=extra_args or (),
420
        env_inherit=BLACK_ENV_INHERIT,
421
    )
422
    rewritten_build = Path(rule_runner.build_root, "BUILD").read_text()
1✔
423
    return goal_result, rewritten_build
1✔
424

425

426
def test_yapf_fixer_fixes() -> None:
1✔
427
    result, build = run_yapf("target( name =  't' )")
1✔
428
    assert result.exit_code == 0
1✔
429
    assert result.stdout == dedent(
1✔
430
        """\
431
        Updated BUILD:
432
          - Format with Yapf
433
        """
434
    )
435
    assert build == "target(name='t')\n"
1✔
436

437

438
def test_yapf_fixer_noops() -> None:
1✔
439
    result, build = run_yapf('target(name="t")\n')
1✔
440
    assert result.exit_code == 0
1✔
441
    assert not result.stdout
1✔
442
    assert build == 'target(name="t")\n'
1✔
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