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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙimport abc import contextlib import functools import importlib import io import pathlib import sys import types from importlib.machinery import ModuleSpec from ..abc import ResourceReader, Traversable, TraversableResources from . import _path from . import zip as zip_ from .compat.py39 import import_helper, os_helper class Reader(ResourceReader): def __init__(self, **kwargs): vars(self).update(kwargs) def get_resource_reader(self, package): return self def open_resource(self, path): self._path = path if isinstance(self.file, Exception): raise self.file return self.file def resource_path(self, path_): self._path = path_ if isinstance(self.path, Exception): raise self.path return self.path def is_resource(self, path_): self._path = path_ if isinstance(self.path, Exception): raise self.path def part(entry): return entry.split('/') return any( len(parts) == 1 and parts[0] == path_ for parts in map(part, self._contents) ) def contents(self): if isinstance(self.path, Exception): raise self.path yield from self._contents def create_package_from_loader(loader, is_package=True): name = 'testingpackage' module = types.ModuleType(name) spec = ModuleSpec(name, loader, origin='does-not-exist', is_package=is_package) module.__spec__ = spec module.__loader__ = loader return module def create_package(file=None, path=None, is_package=True, contents=()): return create_package_from_loader( Reader(file=file, path=path, _contents=contents), is_package, ) class CommonTestsBase(metaclass=abc.ABCMeta): """ Tests shared by test_open, test_path, and test_read. """ @abc.abstractmethod def execute(self, package, path): """ Call the pertinent legacy API function (e.g. open_text, path) on package and path. """ def test_package_name(self): """ Passing in the package name should succeed. """ self.execute(self.data.__name__, 'utf-8.file') def test_package_object(self): """ Passing in the package itself should succeed. """ self.execute(self.data, 'utf-8.file') def test_string_path(self): """ Passing in a string for the path should succeed. """ path = 'utf-8.file' self.execute(self.data, path) def test_pathlib_path(self): """ Passing in a pathlib.PurePath object for the path should succeed. """ path = pathlib.PurePath('utf-8.file') self.execute(self.data, path) def test_importing_module_as_side_effect(self): """ The anchor package can already be imported. """ del sys.modules[self.data.__name__] self.execute(self.data.__name__, 'utf-8.file') def test_missing_path(self): """ Attempting to open or read or request the path for a non-existent path should succeed if open_resource can return a viable data stream. """ bytes_data = io.BytesIO(b'Hello, world!') package = create_package(file=bytes_data, path=FileNotFoundError()) self.execute(package, 'utf-8.file') self.assertEqual(package.__loader__._path, 'utf-8.file') def test_extant_path(self): # Attempting to open or read or request the path when the # path does exist should still succeed. Does not assert # anything about the result. bytes_data = io.BytesIO(b'Hello, world!') # any path that exists path = __file__ package = create_package(file=bytes_data, path=path) self.execute(package, 'utf-8.file') self.assertEqual(package.__loader__._path, 'utf-8.file') def test_useless_loader(self): package = create_package(file=FileNotFoundError(), path=FileNotFoundError()) with self.assertRaises(FileNotFoundError): self.execute(package, 'utf-8.file') fixtures = dict( data01={ '__init__.py': '', 'binary.file': bytes(range(4)), 'utf-16.file': '\ufeffHello, UTF-16 world!\n'.encode('utf-16-le'), 'utf-8.file': 'Hello, UTF-8 world!\n'.encode('utf-8'), 'subdirectory': { '__init__.py': '', 'binary.file': bytes(range(4, 8)), }, }, data02={ '__init__.py': '', 'one': {'__init__.py': '', 'resource1.txt': 'one resource'}, 'two': {'__init__.py': '', 'resource2.txt': 'two resource'}, 'subdirectory': {'subsubdir': {'resource.txt': 'a resource'}}, }, namespacedata01={ 'binary.file': bytes(range(4)), 'utf-16.file': '\ufeffHello, UTF-16 world!\n'.encode('utf-16-le'), 'utf-8.file': 'Hello, UTF-8 world!\n'.encode('utf-8'), 'subdirectory': { 'binary.file': bytes(range(12, 16)), }, }, ) class ModuleSetup: def setUp(self): self.fixtures = contextlib.ExitStack() self.addCleanup(self.fixtures.close) self.fixtures.enter_context(import_helper.isolated_modules()) self.data = self.load_fixture(self.MODULE) def load_fixture(self, module): self.tree_on_path({module: fixtures[module]}) return importlib.import_module(module) class ZipSetup(ModuleSetup): MODULE = 'data01' def tree_on_path(self, spec): temp_dir = self.fixtures.enter_context(os_helper.temp_dir()) modules = pathlib.Path(temp_dir) / 'zipped modules.zip' self.fixtures.enter_context( import_helper.DirsOnSysPath(str(zip_.make_zip_file(spec, modules))) ) class DiskSetup(ModuleSetup): MODULE = 'data01' def tree_on_path(self, spec): temp_dir = self.fixtures.enter_context(os_helper.temp_dir()) _path.build(spec, pathlib.Path(temp_dir)) self.fixtures.enter_context(import_helper.DirsOnSysPath(temp_dir)) class MemorySetup(ModuleSetup): """Support loading a module in memory.""" MODULE = 'data01' def load_fixture(self, module): self.fixtures.enter_context(self.augment_sys_metapath(module)) return importlib.import_module(module) @contextlib.contextmanager def augment_sys_metapath(self, module): finder_instance = self.MemoryFinder(module) sys.meta_path.append(finder_instance) yield sys.meta_path.remove(finder_instance) class MemoryFinder(importlib.abc.MetaPathFinder): def __init__(self, module): self._module = module def find_spec(self, fullname, path, target=None): if fullname != self._module: return None return importlib.machinery.ModuleSpec( name=fullname, loader=MemorySetup.MemoryLoader(self._module), is_package=True, ) class MemoryLoader(importlib.abc.Loader): def __init__(self, module): self._module = module def exec_module(self, module): pass def get_resource_reader(self, fullname): return MemorySetup.MemoryTraversableResources(self._module, fullname) class MemoryTraversableResources(TraversableResources): def __init__(self, module, fullname): self._module = module self._fullname = fullname def files(self): return MemorySetup.MemoryTraversable(self._module, self._fullname) class MemoryTraversable(Traversable): """Implement only the abstract methods of `Traversable`. Besides `.__init__()`, no other methods may be implemented or overridden. This is critical for validating the concrete `Traversable` implementations. """ def __init__(self, module, fullname): self._module = module self._fullname = fullname def _resolve(self): """ Fully traverse the `fixtures` dictionary. This should be wrapped in a `try/except KeyError` but it is not currently needed and lowers the code coverage numbers. """ path = pathlib.PurePosixPath(self._fullname) return functools.reduce(lambda d, p: d[p], path.parts, fixtures) def iterdir(self): directory = self._resolve() if not isinstance(directory, dict): # Filesystem openers raise OSError, and that exception is mirrored here. raise OSError(f"{self._fullname} is not a directory") for path in directory: yield MemorySetup.MemoryTraversable( self._module, f"{self._fullname}/{path}" ) def is_dir(self) -> bool: return isinstance(self._resolve(), dict) def is_file(self) -> bool: return not self.is_dir() def open(self, mode='r', encoding=None, errors=None, *_, **__): contents = self._resolve() if isinstance(contents, dict): # Filesystem openers raise OSError when attempting to open a directory, # and that exception is mirrored here. raise OSError(f"{self._fullname} is a directory") if isinstance(contents, str): contents = contents.encode("utf-8") result = io.BytesIO(contents) if "b" in mode: return result return io.TextIOWrapper(result, encoding=encoding, errors=errors) @property def name(self): return pathlib.PurePosixPath(self._fullname).name class CommonTests(DiskSetup, CommonTestsBase): pass