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✏️ Editing: test_path.py

import io
import unittest

from importlib import resources
from . import data01
from . import util

class CommonTests(util.CommonResourceTests, unittest.TestCase):
    def execute(self, package, path):
        with resources.path(package, path):
            pass

class PathTests:
    def test_reading(self):
        # Path should be readable.
        # Test also implicitly verifies the returned object is a pathlib.Path
        # instance.
        with resources.path(self.data, 'utf-8.file') as path:
            self.assertTrue(path.name.endswith("utf-8.file"), repr(path))
            # pathlib.Path.read_text() was introduced in Python 3.5.
            with path.open('r', encoding='utf-8') as file:
                text = file.read()
            self.assertEqual('Hello, UTF-8 world!\n', text)

class PathDiskTests(PathTests, unittest.TestCase):
    data = data01

def test_natural_path(self):
        # Guarantee the internal implementation detail that
        # file-system-backed resources do not get the tempdir
        # treatment.
        with resources.path(self.data, 'utf-8.file') as path:
            assert 'data' in str(path)

class PathMemoryTests(PathTests, unittest.TestCase):
    def setUp(self):
        file = io.BytesIO(b'Hello, UTF-8 world!\n')
        self.addCleanup(file.close)
        self.data = util.create_package(
            file=file, path=FileNotFoundError("package exists only in memory")
        )
        self.data.__spec__.origin = None
        self.data.__spec__.has_location = False

class PathZipTests(PathTests, util.ZipSetup, unittest.TestCase):
    def test_remove_in_context_manager(self):
        # It is not an error if the file that was temporarily stashed on the
        # file system is removed inside the `with` stanza.
        with resources.path(self.data, 'utf-8.file') as path:
            path.unlink()

if __name__ == '__main__':
    unittest.main()

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