cpython/Lib/test/test_importlib/resources/test_read.py

94 lines
2.9 KiB
Python

import unittest
from importlib import import_module, resources
from . import util
class CommonBinaryTests(util.CommonTests, unittest.TestCase):
def execute(self, package, path):
resources.files(package).joinpath(path).read_bytes()
class CommonTextTests(util.CommonTests, unittest.TestCase):
def execute(self, package, path):
resources.files(package).joinpath(path).read_text(encoding='utf-8')
class ReadTests:
def test_read_bytes(self):
result = resources.files(self.data).joinpath('binary.file').read_bytes()
self.assertEqual(result, bytes(range(4)))
def test_read_text_default_encoding(self):
result = (
resources.files(self.data)
.joinpath('utf-8.file')
.read_text(encoding='utf-8')
)
self.assertEqual(result, 'Hello, UTF-8 world!\n')
def test_read_text_given_encoding(self):
result = (
resources.files(self.data)
.joinpath('utf-16.file')
.read_text(encoding='utf-16')
)
self.assertEqual(result, 'Hello, UTF-16 world!\n')
def test_read_text_with_errors(self):
"""
Raises UnicodeError without the 'errors' argument.
"""
target = resources.files(self.data) / 'utf-16.file'
self.assertRaises(UnicodeError, target.read_text, encoding='utf-8')
result = target.read_text(encoding='utf-8', errors='ignore')
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',
)
class ReadDiskTests(ReadTests, util.DiskSetup, unittest.TestCase):
pass
class ReadZipTests(ReadTests, util.ZipSetup, unittest.TestCase):
def test_read_submodule_resource(self):
submodule = import_module('data01.subdirectory')
result = resources.files(submodule).joinpath('binary.file').read_bytes()
self.assertEqual(result, bytes(range(4, 8)))
def test_read_submodule_resource_by_name(self):
result = (
resources.files('data01.subdirectory').joinpath('binary.file').read_bytes()
)
self.assertEqual(result, bytes(range(4, 8)))
class ReadNamespaceTests(ReadTests, util.DiskSetup, unittest.TestCase):
MODULE = 'namespacedata01'
class ReadNamespaceZipTests(ReadTests, util.ZipSetup, unittest.TestCase):
MODULE = 'namespacedata01'
def test_read_submodule_resource(self):
submodule = import_module('namespacedata01.subdirectory')
result = resources.files(submodule).joinpath('binary.file').read_bytes()
self.assertEqual(result, bytes(range(12, 16)))
def test_read_submodule_resource_by_name(self):
result = (
resources.files('namespacedata01.subdirectory')
.joinpath('binary.file')
.read_bytes()
)
self.assertEqual(result, bytes(range(12, 16)))
if __name__ == '__main__':
unittest.main()