f2ea461e9e
* Move string-related utility to functions to strings.py, const.py * Move Leaf/Node-related functionality to nodes.py * Move comment-related functions to comments.py * Move caching to cache.py and Mode/TargetVersion/Feature to mode.py * Move some leftover functions to nodes.py, comments.py, strings.py * Add missing files to source list for test runs * Move line-related functionality into lines.py, brackets into brackets.py * Move transformers to trans.py * Move file handling, output, parsing, concurrency, debug, and report * Move two more functions to nodes.py * Add CHANGES * Add numeric.py * Add linegen.py * More docstrings * Include new files in tests Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
75 lines
2.4 KiB
Python
75 lines
2.4 KiB
Python
import os
|
|
import unittest
|
|
from pathlib import Path
|
|
from typing import List, Tuple, Any
|
|
from functools import partial
|
|
|
|
import black
|
|
from black.output import out, err
|
|
from black.debug import DebugVisitor
|
|
|
|
THIS_DIR = Path(__file__).parent
|
|
PROJECT_ROOT = THIS_DIR.parent
|
|
EMPTY_LINE = "# EMPTY LINE WITH WHITESPACE" + " (this comment will be removed)"
|
|
DETERMINISTIC_HEADER = "[Deterministic header]"
|
|
|
|
|
|
DEFAULT_MODE = black.Mode()
|
|
ff = partial(black.format_file_in_place, mode=DEFAULT_MODE, fast=True)
|
|
fs = partial(black.format_str, mode=DEFAULT_MODE)
|
|
|
|
|
|
def dump_to_stderr(*output: str) -> str:
|
|
return "\n" + "\n".join(output) + "\n"
|
|
|
|
|
|
class BlackBaseTestCase(unittest.TestCase):
|
|
maxDiff = None
|
|
_diffThreshold = 2 ** 20
|
|
|
|
def assertFormatEqual(self, expected: str, actual: str) -> None:
|
|
if actual != expected and not os.environ.get("SKIP_AST_PRINT"):
|
|
bdv: DebugVisitor[Any]
|
|
out("Expected tree:", fg="green")
|
|
try:
|
|
exp_node = black.lib2to3_parse(expected)
|
|
bdv = DebugVisitor()
|
|
list(bdv.visit(exp_node))
|
|
except Exception as ve:
|
|
err(str(ve))
|
|
out("Actual tree:", fg="red")
|
|
try:
|
|
exp_node = black.lib2to3_parse(actual)
|
|
bdv = DebugVisitor()
|
|
list(bdv.visit(exp_node))
|
|
except Exception as ve:
|
|
err(str(ve))
|
|
self.assertMultiLineEqual(expected, actual)
|
|
|
|
|
|
def read_data(name: str, data: bool = True) -> Tuple[str, str]:
|
|
"""read_data('test_name') -> 'input', 'output'"""
|
|
if not name.endswith((".py", ".pyi", ".out", ".diff")):
|
|
name += ".py"
|
|
base_dir = THIS_DIR / "data" if data else PROJECT_ROOT
|
|
return read_data_from_file(base_dir / name)
|
|
|
|
|
|
def read_data_from_file(file_name: Path) -> Tuple[str, str]:
|
|
with open(file_name, "r", encoding="utf8") as test:
|
|
lines = test.readlines()
|
|
_input: List[str] = []
|
|
_output: List[str] = []
|
|
result = _input
|
|
for line in lines:
|
|
line = line.replace(EMPTY_LINE, "")
|
|
if line.rstrip() == "# output":
|
|
result = _output
|
|
continue
|
|
|
|
result.append(line)
|
|
if _input and not _output:
|
|
# If there's no output marker, treat the entire file as already pre-formatted.
|
|
_output = _input[:]
|
|
return "".join(_input).strip() + "\n", "".join(_output).strip() + "\n"
|