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import unittest
from importlib import resources
from . import util
class CommonBinaryTests(util.CommonTests, unittest.TestCase):
def execute(self, package, path):
target = resources.files(package).joinpath(path)
with target.open('rb'):
pass
class CommonTextTests(util.CommonTests, unittest.TestCase):
def execute(self, package, path):
target = resources.files(package).joinpath(path)
with target.open(encoding='utf-8'):
pass
class OpenTests:
def test_open_binary(self):
target = resources.files(self.data) / 'binary.file'
with target.open('rb') as fp:
result = fp.read()
self.assertEqual(result, bytes(range(4)))
def test_open_text_default_encoding(self):
target = resources.files(self.data) / 'utf-8.file'
with target.open(encoding='utf-8') as fp:
result = fp.read()
self.assertEqual(result, 'Hello, UTF-8 world!\n')
def test_open_text_given_encoding(self):
target = resources.files(self.data) / 'utf-16.file'
with target.open(encoding='utf-16', errors='strict') as fp:
result = fp.read()
self.assertEqual(result, 'Hello, UTF-16 world!\n')
def test_open_text_with_errors(self):
"""
Raises UnicodeError without the 'errors' argument.
"""
target = resources.files(self.data) / 'utf-16.file'
with target.open(encoding='utf-8', errors='strict') as fp:
self.assertRaises(UnicodeError, fp.read)
with target.open(encoding='utf-8', errors='ignore') as fp:
result = fp.read()
self.assertEqual(
result,
'H\x00e\x00l\x00l\x00o\x00,\x00 '
'\x00U\x00T\x00F\x00-\x001\x006\x00 '
'\x00w\x00o\x00r\x00l\x00d\x00!\x00\n\x00',
)
def test_open_binary_FileNotFoundError(self):
target = resources.files(self.data) / 'does-not-exist'
with self.assertRaises(FileNotFoundError):
target.open('rb')
def test_open_text_FileNotFoundError(self):
target = resources.files(self.data) / 'does-not-exist'
with self.assertRaises(FileNotFoundError):
target.open(encoding='utf-8')
class OpenDiskTests(OpenTests, util.DiskSetup, unittest.TestCase):
pass
class OpenDiskNamespaceTests(OpenTests, util.DiskSetup, unittest.TestCase):
MODULE = 'namespacedata01'
class OpenZipTests(OpenTests, util.ZipSetup, unittest.TestCase):
pass
class OpenNamespaceZipTests(OpenTests, util.ZipSetup, unittest.TestCase):
MODULE = 'namespacedata01'
if __name__ == '__main__':
unittest.main()
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