cpython/Lib/test/test_pathlib/test_copy.py

175 lines
7.4 KiB
Python

"""
Tests for copying from pathlib.types._ReadablePath to _WritablePath.
"""
import contextlib
import unittest
from .support import is_pypi
from .support.local_path import LocalPathGround
from .support.zip_path import ZipPathGround, ReadableZipPath, WritableZipPath
class CopyTestBase:
def setUp(self):
self.source_root = self.source_ground.setup()
self.source_ground.create_hierarchy(self.source_root)
self.target_root = self.target_ground.setup(local_suffix="_target")
def tearDown(self):
self.source_ground.teardown(self.source_root)
self.target_ground.teardown(self.target_root)
def test_copy_file(self):
source = self.source_root / 'fileA'
target = self.target_root / 'copyA'
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(self.target_ground.isfile(target))
self.assertEqual(self.source_ground.readbytes(source),
self.target_ground.readbytes(result))
def test_copy_file_empty(self):
source = self.source_root / 'empty'
target = self.target_root / 'copyA'
self.source_ground.create_file(source, b'')
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(self.target_ground.isfile(target))
self.assertEqual(self.target_ground.readbytes(result), b'')
def test_copy_file_to_existing_file(self):
source = self.source_root / 'fileA'
target = self.target_root / 'copyA'
self.target_ground.create_file(target, b'this is a copy\n')
with contextlib.ExitStack() as stack:
if isinstance(target, WritableZipPath):
stack.enter_context(self.assertWarns(UserWarning))
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(self.target_ground.isfile(target))
self.assertEqual(self.source_ground.readbytes(source),
self.target_ground.readbytes(result))
def test_copy_file_to_directory(self):
if isinstance(self.target_root, WritableZipPath):
self.skipTest('needs local target')
source = self.source_root / 'fileA'
target = self.target_root / 'copyA'
self.target_ground.create_dir(target)
self.assertRaises(OSError, source.copy, target)
def test_copy_file_to_itself(self):
source = self.source_root / 'fileA'
self.assertRaises(OSError, source.copy, source)
self.assertRaises(OSError, source.copy, source, follow_symlinks=False)
def test_copy_dir(self):
source = self.source_root / 'dirC'
target = self.target_root / 'copyC'
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(self.target_ground.isdir(target))
self.assertTrue(self.target_ground.isfile(target / 'fileC'))
self.assertEqual(self.target_ground.readtext(target / 'fileC'), 'this is file C\n')
self.assertTrue(self.target_ground.isdir(target / 'dirD'))
self.assertTrue(self.target_ground.isfile(target / 'dirD' / 'fileD'))
self.assertEqual(self.target_ground.readtext(target / 'dirD' / 'fileD'), 'this is file D\n')
def test_copy_dir_follow_symlinks_true(self):
if not self.source_ground.can_symlink:
self.skipTest('needs symlink support on source')
source = self.source_root / 'dirC'
target = self.target_root / 'copyC'
self.source_ground.create_symlink(source / 'linkC', 'fileC')
self.source_ground.create_symlink(source / 'linkD', 'dirD')
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(self.target_ground.isdir(target))
self.assertFalse(self.target_ground.islink(target / 'linkC'))
self.assertTrue(self.target_ground.isfile(target / 'linkC'))
self.assertEqual(self.target_ground.readtext(target / 'linkC'), 'this is file C\n')
self.assertFalse(self.target_ground.islink(target / 'linkD'))
self.assertTrue(self.target_ground.isdir(target / 'linkD'))
self.assertTrue(self.target_ground.isfile(target / 'linkD' / 'fileD'))
self.assertEqual(self.target_ground.readtext(target / 'linkD' / 'fileD'), 'this is file D\n')
def test_copy_dir_follow_symlinks_false(self):
if not self.source_ground.can_symlink:
self.skipTest('needs symlink support on source')
if not self.target_ground.can_symlink:
self.skipTest('needs symlink support on target')
source = self.source_root / 'dirC'
target = self.target_root / 'copyC'
self.source_ground.create_symlink(source / 'linkC', 'fileC')
self.source_ground.create_symlink(source / 'linkD', 'dirD')
result = source.copy(target, follow_symlinks=False)
self.assertEqual(result, target)
self.assertTrue(self.target_ground.isdir(target))
self.assertTrue(self.target_ground.islink(target / 'linkC'))
self.assertEqual(self.target_ground.readlink(target / 'linkC'), 'fileC')
self.assertTrue(self.target_ground.islink(target / 'linkD'))
self.assertEqual(self.target_ground.readlink(target / 'linkD'), 'dirD')
def test_copy_dir_to_existing_directory(self):
if isinstance(self.target_root, WritableZipPath):
self.skipTest('needs local target')
source = self.source_root / 'dirC'
target = self.target_root / 'copyC'
self.target_ground.create_dir(target)
self.assertRaises(FileExistsError, source.copy, target)
def test_copy_dir_to_itself(self):
source = self.source_root / 'dirC'
self.assertRaises(OSError, source.copy, source)
self.assertRaises(OSError, source.copy, source, follow_symlinks=False)
def test_copy_dir_into_itself(self):
source = self.source_root / 'dirC'
target = self.source_root / 'dirC' / 'dirD' / 'copyC'
self.assertRaises(OSError, source.copy, target)
self.assertRaises(OSError, source.copy, target, follow_symlinks=False)
def test_copy_into(self):
source = self.source_root / 'fileA'
target_dir = self.target_root / 'dirA'
self.target_ground.create_dir(target_dir)
result = source.copy_into(target_dir)
self.assertEqual(result, target_dir / 'fileA')
self.assertTrue(self.target_ground.isfile(result))
self.assertEqual(self.source_ground.readbytes(source),
self.target_ground.readbytes(result))
def test_copy_into_empty_name(self):
source = self.source_root.with_segments()
target_dir = self.target_root / 'dirA'
self.target_ground.create_dir(target_dir)
self.assertRaises(ValueError, source.copy_into, target_dir)
class ZipToZipPathCopyTest(CopyTestBase, unittest.TestCase):
source_ground = ZipPathGround(ReadableZipPath)
target_ground = ZipPathGround(WritableZipPath)
if not is_pypi:
from pathlib import Path
class ZipToLocalPathCopyTest(CopyTestBase, unittest.TestCase):
source_ground = ZipPathGround(ReadableZipPath)
target_ground = LocalPathGround(Path)
class LocalToZipPathCopyTest(CopyTestBase, unittest.TestCase):
source_ground = LocalPathGround(Path)
target_ground = ZipPathGround(WritableZipPath)
class LocalToLocalPathCopyTest(CopyTestBase, unittest.TestCase):
source_ground = LocalPathGround(Path)
target_ground = LocalPathGround(Path)
if __name__ == "__main__":
unittest.main()