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import unittest

import importlib_resources as resources
from . import data01
from . import util


class CommonTests(util.CommonTests, 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 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()