Uses ruff to format code (#556)

.github/workflows/python-package.yml

@@ -28,7 +28,9 @@ jobs:
       - name: Install dependencies
         run: uv sync -i https://pypi.org/simple  # Ignore download URLs in uv.lock.
       - name: Lint with ruff
-        run: uv run ruff check src/cosmic_ray
+        run: |
+          uv run ruff check .
+          uv run ruff format --check .
       - name: Test with pytest
         run: uv run pytest tests --run-slow
 

src/cosmic_ray/cli.py

@@ -2,6 +2,7 @@
 
 Here we manage command-line parsing and launching of the internal machinery that does mutation testing.
 """
+
 import dataclasses
 import json
 import logging
@@ -261,7 +262,9 @@ def mutate_and_test(module_path, operator, occurrence, test_command, keep_stdout
     """
     with open(os.devnull, "w") as devnull:
         with redirect_stdout(sys.stdout if keep_stdout else devnull):
-            work_result = cosmic_ray.mutating.mutate_and_test(Path(module_path), operator, occurrence, test_command, None)
+            work_result = cosmic_ray.mutating.mutate_and_test(
+                Path(module_path), operator, occurrence, test_command, None
+            )
 
     sys.stdout.write(json.dumps(dataclasses.asdict(work_result)))
 

src/cosmic_ray/commands/execute.py

@@ -1,4 +1,5 @@
 "Implementation of the 'execute' command."
+
 import logging
 import os
 

src/cosmic_ray/commands/init.py

@@ -1,4 +1,5 @@
 "Implementation of the 'init' command."
+
 import logging
 import uuid
 from typing import Iterable

src/cosmic_ray/commands/new_config.py

@@ -1,5 +1,4 @@
-"""Implementation of the 'new-config' command.
-"""
+"""Implementation of the 'new-config' command."""
 
 import os.path
 

src/cosmic_ray/config.py

@@ -1,4 +1,5 @@
 """Configuration module."""
+
 import logging
 import sys
 from contextlib import contextmanager

src/cosmic_ray/distribution/http.py

@@ -16,6 +16,7 @@
     [cosmic-ray.distributor.http]
     worker-urls = ['http://localhost:9876', 'http://localhost:9877']
 """
+
 import asyncio
 import logging
 from pathlib import Path

src/cosmic_ray/mutating.py

@@ -1,5 +1,5 @@
-"""Support for making mutations to source code.
-"""
+"""Support for making mutations to source code."""
+
 import contextlib
 import difflib
 import logging

src/cosmic_ray/operators/boolean_replacer.py

@@ -1,5 +1,4 @@
-"""Implementation of the boolean replacement operators.
-"""
+"""Implementation of the boolean replacement operators."""
 
 import parso.python.tree
 

src/cosmic_ray/operators/break_continue.py

@@ -7,11 +7,13 @@
 
 class ReplaceBreakWithContinue(KeywordReplacementOperator):
     "Operator which replaces 'break' with 'continue'."
+
     from_keyword = "break"
     to_keyword = "continue"
 
 
 class ReplaceContinueWithBreak(KeywordReplacementOperator):
     "Operator which replaces 'continue' with 'break'."
+
     from_keyword = "continue"
     to_keyword = "break"

src/cosmic_ray/operators/comparison_operator_replacement.py

@@ -1,6 +1,7 @@
 """This module contains mutation operators which replace one
 comparison operator with another.
 """
+
 import itertools
 from enum import Enum
 
@@ -13,6 +14,7 @@
 
 class ComparisonOperators(Enum):
     "All comparison operators that we mutate."
+
     Eq = "=="
     NotEq = "!="
     Lt = "<"

src/cosmic_ray/operators/number_replacer.py

@@ -1,5 +1,4 @@
-"""Implementation of the NumberReplacer operator.
-"""
+"""Implementation of the NumberReplacer operator."""
 
 import parso
 

src/cosmic_ray/operators/provider.py

@@ -1,5 +1,4 @@
-"""Operator-provider plugin for all core cosmic ray operators.
-"""
+"""Operator-provider plugin for all core cosmic ray operators."""
 
 import itertools
 

src/cosmic_ray/operators/unary_operator_replacement.py

@@ -1,5 +1,4 @@
-"""Implementation of the unary-operator-replacement operator.
-"""
+"""Implementation of the unary-operator-replacement operator."""
 
 from enum import Enum
 from itertools import permutations
@@ -12,6 +11,7 @@
 
 class UnaryOperators(Enum):
     "All unary operators that we mutate."
+
     UAdd = "+"
     USub = "-"
     Invert = "~"
@@ -51,7 +51,7 @@ def mutate(self, node, index):
         @classmethod
         def examples(cls):
             from_code = f"{from_op.value}1"
-            to_code = from_code[len(from_op.value):]
+            to_code = from_code[len(from_op.value) :]
 
             if to_op is not UnaryOperators.Nothing:
                 to_code = to_op.value + to_code

src/cosmic_ray/operators/variable_inserter.py

@@ -1,4 +1,5 @@
 """Implementation of the variable-inserter operator."""
+
 import random
 
 import parso.python.tree

src/cosmic_ray/operators/variable_replacer.py

@@ -1,4 +1,5 @@
 """Implementation of the variable-replacement operator."""
+
 from random import randint
 
 from parso.python.tree import ExprStmt, Leaf, Number

src/cosmic_ray/plugins.py

@@ -1,5 +1,4 @@
-"""Query and retrieve the various plugins in Cosmic Ray.
-"""
+"""Query and retrieve the various plugins in Cosmic Ray."""
 
 import logging
 
@@ -34,7 +33,7 @@ def get_operator(name):
     """
     sep = name.index("/")
     provider_name = name[:sep]
-    operator_name = name[sep + 1:]
+    operator_name = name[sep + 1 :]
 
     provider = OPERATOR_PROVIDERS[provider_name]
     return provider[operator_name]

src/cosmic_ray/tools/badge.py

@@ -1,5 +1,5 @@
-"""Tool for creating badge.
-"""
+"""Tool for creating badge."""
+
 import os
 from logging import getLogger
 

src/cosmic_ray/tools/filters/filter_app.py

@@ -1,5 +1,5 @@
-"""A simple base for creating common types of work-db filters.
-"""
+"""A simple base for creating common types of work-db filters."""
+
 import argparse
 import logging
 import sys

src/cosmic_ray/tools/filters/git.py

@@ -1,6 +1,7 @@
 """A filter that uses git to determine when specific files/lines
 should be skipped.
 """
+
 import logging
 import re
 import subprocess

src/cosmic_ray/tools/filters/operators_filter.py

@@ -1,5 +1,5 @@
-"""An filter that removes operators based on regular expressions.
-"""
+"""An filter that removes operators based on regular expressions."""
+
 import logging
 import re
 import sys

src/cosmic_ray/tools/filters/pragma_no_mutate.py

@@ -1,6 +1,7 @@
 """A filter that uses "# pragma: no mutate" to determine when specific mutations
 should be skipped.
 """
+
 import logging
 import re
 import sys

src/cosmic_ray/tools/survival_rate.py

@@ -25,7 +25,7 @@
     type=click.FloatRange(0, 100),
     default=None,
     help="Exit with a non-zero code if the survival rate is larger than <max_value> or the calculated confidence interval "
-         "is above the <max_value> (if --estimate is used).  Specified as percentage.",
+    "is above the <max_value> (if --estimate is used).  Specified as percentage.",
 )
 @click.argument("session-file", type=click.Path(dir_okay=False, readable=True, exists=True))
 def format_survival_rate(estimate, confidence, fail_over, session_file):
@@ -45,7 +45,9 @@ def format_survival_rate(estimate, confidence, fail_over, session_file):
         if not num_complete:
             conf_int = 0
         else:
-            conf_int = math.sqrt(rate * (100 - rate) / num_complete) * z_score * (1 - math.sqrt(num_complete / num_items))
+            conf_int = (
+                math.sqrt(rate * (100 - rate) / num_complete) * z_score * (1 - math.sqrt(num_complete / num_items))
+            )
         min_rate = rate - conf_int
         print(f"{min_rate:.2f} {rate:.2f} {rate + conf_int:.2f}")
 

src/cosmic_ray/work_db.py

@@ -165,8 +165,11 @@ def pending_work_items(self):
         "Iterable of all pending work items. In random order."
         with self._session_maker.begin() as session:
             completed_job_ids = session.query(WorkResultStorage.job_id)
-            pending = session.query(WorkItemStorage).where(
-                ~WorkItemStorage.job_id.in_(completed_job_ids)).order_by(func.random())
+            pending = (
+                session.query(WorkItemStorage)
+                .where(~WorkItemStorage.job_id.in_(completed_job_ids))
+                .order_by(func.random())
+            )
             return tuple(_work_item_from_storage(work_item) for work_item in pending)
 
     @property
@@ -208,6 +211,7 @@ def use_db(path, mode=WorkDB.Mode.create):
 
 class WorkItemStorage(Base):
     "Database model for WorkItem."
+
     __tablename__ = "work_items"
 
     job_id = Column(String, primary_key=True)
@@ -216,6 +220,7 @@ class WorkItemStorage(Base):
 
 class MutationSpecStorage(Base):
     "Database model for MutationSpecs"
+
     __tablename__ = "mutation_specs"
     module_path = Column(String)
     operator_name = Column(String)
@@ -231,6 +236,7 @@ class MutationSpecStorage(Base):
 
 class WorkResultStorage(Base):
     "Database model for WorkResult."
+
     __tablename__ = "work_results"
 
     worker_outcome = Column(Enum(WorkerOutcome))

src/cosmic_ray/work_item.py

@@ -1,5 +1,5 @@
-"""Classes for describing work and results.
-"""
+"""Classes for describing work and results."""
+
 import dataclasses
 import enum
 import pathlib
@@ -56,6 +56,7 @@ def is_killed(self):
 @dataclasses.dataclass(frozen=True)
 class MutationSpec:
     "Description of a single mutation."
+
     module_path: Path
     operator_name: str
     occurrence: int

tests/e2e/test_e2e.py

@@ -109,4 +109,4 @@ def test_baseline_with_pytest_filter(example_project_root, session):
         capture_output=True,
     )
 
-    assert result.returncode == 0 
+    assert result.returncode == 0

tests/resources/example_project/adam/adam_1.py

@@ -1,5 +1,4 @@
-"""adam.adam_1
-"""
+"""adam.adam_1"""
 
 # pylint: disable=C0111
 import operator

tests/resources/example_project/adam/adam_2.py

@@ -1,5 +1,4 @@
-"""adam.adam_2
-"""
+"""adam.adam_2"""
 
 
 def trigger_infinite_loop():

tests/unittests/operators/test_operator_samples.py

@@ -1,5 +1,5 @@
-"""Tests for the various mutation operators.
-"""
+"""Tests for the various mutation operators."""
+
 import parso
 import pytest
 

tests/unittests/test_ast.py

@@ -18,4 +18,4 @@ def foo():
     with module_filepath.open("wb") as f:
         f.write(input_code)
     ast = get_ast_from_path(module_filepath)
-    assert ast.get_code().encode('latin-1') == input_code
+    assert ast.get_code().encode("latin-1") == input_code

tests/unittests/test_config.py

@@ -1,5 +1,5 @@
-"""Tests for config loading functions.
-"""
+"""Tests for config loading functions."""
+
 import io
 
 import pytest