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"""Support code for test_*.py files"""
# Author: Collin Winter
# Python imports
import unittest
import os
import os.path
from textwrap import dedent
# Local imports
import lib2to3
from lib2to3 import pytree, refactor
from lib2to3.pgen2 import driver as pgen2_driver
lib2to3_dir = os.path.dirname(lib2to3.__file__)
test_dir = os.path.dirname(__file__)
proj_dir = os.path.normpath(os.path.join(test_dir, ".."))
grammar_path = os.path.join(lib2to3_dir, "Grammar.txt")
grammar = pgen2_driver.load_grammar(grammar_path)
grammar_no_print_statement = pgen2_driver.load_grammar(grammar_path)
del grammar_no_print_statement.keywords["print"]
driver = pgen2_driver.Driver(grammar, convert=pytree.convert)
driver_no_print_statement = pgen2_driver.Driver(
grammar_no_print_statement,
convert=pytree.convert
)
def parse_string(string):
return driver.parse_string(reformat(string), debug=True)
def run_all_tests(test_mod=None, tests=None):
if tests is None:
tests = unittest.TestLoader().loadTestsFromModule(test_mod)
unittest.TextTestRunner(verbosity=2).run(tests)
def reformat(string):
return dedent(string) + "\n\n"
def get_refactorer(fixer_pkg="lib2to3", fixers=None, options=None):
"""
A convenience function for creating a RefactoringTool for tests.
fixers is a list of fixers for the RefactoringTool to use. By default
"lib2to3.fixes.*" is used. options is an optional dictionary of options to
be passed to the RefactoringTool.
"""
if fixers is not None:
fixers = [fixer_pkg + ".fixes.fix_" + fix for fix in fixers]
else:
fixers = refactor.get_fixers_from_package(fixer_pkg + ".fixes")
options = options or {}
return refactor.RefactoringTool(fixers, options, explicit=True)
def _all_project_files(root, files):
for dirpath, dirnames, filenames in os.walk(root):
for filename in filenames:
if not filename.endswith(".py"):
continue
files.append(os.path.join(dirpath, filename))
def all_project_files():
files = []
_all_project_files(lib2to3_dir, files)
_all_project_files(test_dir, files)
# Sort to get more reproducible tests
files.sort()
return files
TestCase = unittest.TestCase
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