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The whole repository is now buildable with GNU Make Landlock sandboxing.
This proves that no Makefile targets exist which touch files other than
their declared prerequisites. In order to do this, we had to:
1. Stop code morphing GCC output in package.com and instead run a
newly introduced FIXUPOBJ.COM command after GCC invocations.
2. Disable all the crumby Python unit tests that do things like create
files in the current directory, or rename() files between folders.
This ended up being a lot of tests, but most of them are still ok.
3. Introduce an .UNSANDBOXED variable to GNU Make to disable Landlock.
We currently only do this for things like `make tags`.
4. This change deletes some GNU Make code that was preventing the
execve() optimization from working. This means it should no longer
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7. An .UNVEIL variable has been introduced to GNU Make just in case
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604 lines
20 KiB
Python
604 lines
20 KiB
Python
# Adapted from test_file.py by Daniel Stutzbach
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import sys
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import os
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import io
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import errno
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import cosmo
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import unittest
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from array import array
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from weakref import proxy
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from functools import wraps
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from test.support import (TESTFN, TESTFN_UNICODE, check_warnings, run_unittest,
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make_bad_fd, cpython_only, swap_attr)
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from collections import UserList
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import _io # C implementation of io
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import _pyio # Python implementation of io
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class AutoFileTests:
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# file tests for which a test file is automatically set up
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def setUp(self):
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self.f = self.FileIO(TESTFN, 'w')
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def tearDown(self):
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if self.f:
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self.f.close()
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os.remove(TESTFN)
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def testWeakRefs(self):
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# verify weak references
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p = proxy(self.f)
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p.write(bytes(range(10)))
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self.assertEqual(self.f.tell(), p.tell())
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self.f.close()
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self.f = None
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self.assertRaises(ReferenceError, getattr, p, 'tell')
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def testSeekTell(self):
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self.f.write(bytes(range(20)))
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self.assertEqual(self.f.tell(), 20)
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self.f.seek(0)
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self.assertEqual(self.f.tell(), 0)
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self.f.seek(10)
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self.assertEqual(self.f.tell(), 10)
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self.f.seek(5, 1)
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self.assertEqual(self.f.tell(), 15)
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self.f.seek(-5, 1)
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self.assertEqual(self.f.tell(), 10)
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self.f.seek(-5, 2)
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self.assertEqual(self.f.tell(), 15)
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def testAttributes(self):
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# verify expected attributes exist
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f = self.f
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self.assertEqual(f.mode, "wb")
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self.assertEqual(f.closed, False)
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# verify the attributes are readonly
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for attr in 'mode', 'closed':
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self.assertRaises((AttributeError, TypeError),
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setattr, f, attr, 'oops')
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def testBlksize(self):
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# test private _blksize attribute
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blksize = io.DEFAULT_BUFFER_SIZE
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# try to get preferred blksize from stat.st_blksize, if available
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if hasattr(os, 'fstat'):
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fst = os.fstat(self.f.fileno())
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blksize = getattr(fst, 'st_blksize', blksize)
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self.assertEqual(self.f._blksize, blksize)
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# verify readinto
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def testReadintoByteArray(self):
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self.f.write(bytes([1, 2, 0, 255]))
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self.f.close()
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ba = bytearray(b'abcdefgh')
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with self.FileIO(TESTFN, 'r') as f:
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n = f.readinto(ba)
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self.assertEqual(ba, b'\x01\x02\x00\xffefgh')
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self.assertEqual(n, 4)
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def _testReadintoMemoryview(self):
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self.f.write(bytes([1, 2, 0, 255]))
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self.f.close()
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m = memoryview(bytearray(b'abcdefgh'))
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with self.FileIO(TESTFN, 'r') as f:
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n = f.readinto(m)
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self.assertEqual(m, b'\x01\x02\x00\xffefgh')
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self.assertEqual(n, 4)
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m = memoryview(bytearray(b'abcdefgh')).cast('H', shape=[2, 2])
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with self.FileIO(TESTFN, 'r') as f:
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n = f.readinto(m)
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self.assertEqual(bytes(m), b'\x01\x02\x00\xffefgh')
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self.assertEqual(n, 4)
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def _testReadintoArray(self):
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self.f.write(bytes([1, 2, 0, 255]))
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self.f.close()
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a = array('B', b'abcdefgh')
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with self.FileIO(TESTFN, 'r') as f:
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n = f.readinto(a)
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self.assertEqual(a, array('B', [1, 2, 0, 255, 101, 102, 103, 104]))
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self.assertEqual(n, 4)
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a = array('b', b'abcdefgh')
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with self.FileIO(TESTFN, 'r') as f:
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n = f.readinto(a)
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self.assertEqual(a, array('b', [1, 2, 0, -1, 101, 102, 103, 104]))
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self.assertEqual(n, 4)
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a = array('I', b'abcdefgh')
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with self.FileIO(TESTFN, 'r') as f:
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n = f.readinto(a)
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self.assertEqual(a, array('I', b'\x01\x02\x00\xffefgh'))
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self.assertEqual(n, 4)
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def testWritelinesList(self):
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l = [b'123', b'456']
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self.f.writelines(l)
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self.f.close()
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self.f = self.FileIO(TESTFN, 'rb')
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buf = self.f.read()
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self.assertEqual(buf, b'123456')
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def testWritelinesUserList(self):
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l = UserList([b'123', b'456'])
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self.f.writelines(l)
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self.f.close()
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self.f = self.FileIO(TESTFN, 'rb')
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buf = self.f.read()
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self.assertEqual(buf, b'123456')
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def testWritelinesError(self):
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self.assertRaises(TypeError, self.f.writelines, [1, 2, 3])
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self.assertRaises(TypeError, self.f.writelines, None)
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self.assertRaises(TypeError, self.f.writelines, "abc")
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def test_none_args(self):
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self.f.write(b"hi\nbye\nabc")
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self.f.close()
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self.f = self.FileIO(TESTFN, 'r')
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self.assertEqual(self.f.read(None), b"hi\nbye\nabc")
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self.f.seek(0)
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self.assertEqual(self.f.readline(None), b"hi\n")
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self.assertEqual(self.f.readlines(None), [b"bye\n", b"abc"])
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def test_reject(self):
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self.assertRaises(TypeError, self.f.write, "Hello!")
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def testRepr(self):
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self.assertEqual(repr(self.f),
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"<%s.FileIO name=%r mode=%r closefd=True>" %
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(self.modulename, self.f.name, self.f.mode))
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del self.f.name
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self.assertEqual(repr(self.f),
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"<%s.FileIO fd=%r mode=%r closefd=True>" %
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(self.modulename, self.f.fileno(), self.f.mode))
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self.f.close()
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self.assertEqual(repr(self.f),
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"<%s.FileIO [closed]>" % (self.modulename,))
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def testReprNoCloseFD(self):
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fd = os.open(TESTFN, os.O_RDONLY)
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try:
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with self.FileIO(fd, 'r', closefd=False) as f:
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self.assertEqual(repr(f),
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"<%s.FileIO name=%r mode=%r closefd=False>" %
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(self.modulename, f.name, f.mode))
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finally:
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os.close(fd)
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@unittest.skipIf(cosmo.MODE.startswith("tiny"), "no stack awareness in tiny mode")
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def testRecursiveRepr(self):
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# Issue #25455
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with swap_attr(self.f, 'name', self.f):
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try:
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repr(self.f) # Should not crash
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except (RuntimeError, MemoryError):
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pass
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else:
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assert False
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def testErrors(self):
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f = self.f
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self.assertFalse(f.isatty())
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self.assertFalse(f.closed)
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#self.assertEqual(f.name, TESTFN)
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self.assertRaises(ValueError, f.read, 10) # Open for reading
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f.close()
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self.assertTrue(f.closed)
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f = self.FileIO(TESTFN, 'r')
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self.assertRaises(TypeError, f.readinto, "")
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self.assertFalse(f.closed)
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f.close()
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self.assertTrue(f.closed)
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def testMethods(self):
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methods = ['fileno', 'isatty', 'seekable', 'readable', 'writable',
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'read', 'readall', 'readline', 'readlines',
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'tell', 'truncate', 'flush']
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self.f.close()
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self.assertTrue(self.f.closed)
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for methodname in methods:
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method = getattr(self.f, methodname)
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# should raise on closed file
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self.assertRaises(ValueError, method)
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self.assertRaises(TypeError, self.f.readinto)
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self.assertRaises(ValueError, self.f.readinto, bytearray(1))
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self.assertRaises(TypeError, self.f.seek)
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self.assertRaises(ValueError, self.f.seek, 0)
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self.assertRaises(TypeError, self.f.write)
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self.assertRaises(ValueError, self.f.write, b'')
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self.assertRaises(TypeError, self.f.writelines)
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self.assertRaises(ValueError, self.f.writelines, b'')
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def testOpendir(self):
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# Issue 3703: opening a directory should fill the errno
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# Windows always returns "[Errno 13]: Permission denied
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# Unix uses fstat and returns "[Errno 21]: Is a directory"
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try:
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self.FileIO('.', 'r')
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except OSError as e:
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self.assertNotEqual(e.errno, 0)
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self.assertEqual(e.filename, ".")
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else:
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self.fail("Should have raised OSError")
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@unittest.skipIf(True, "[jart] Breaks Landlock LSM [why??]")
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@unittest.skipIf(os.name == 'nt', "test only works on a POSIX-like system")
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def testOpenDirFD(self):
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fd = os.open('.', os.O_RDONLY)
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with self.assertRaises(OSError) as cm:
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self.FileIO(fd, 'r')
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os.close(fd)
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self.assertEqual(cm.exception.errno, errno.EISDIR)
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#A set of functions testing that we get expected behaviour if someone has
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#manually closed the internal file descriptor. First, a decorator:
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def ClosedFD(func):
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@wraps(func)
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def wrapper(self):
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#forcibly close the fd before invoking the problem function
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f = self.f
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os.close(f.fileno())
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try:
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func(self, f)
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finally:
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try:
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self.f.close()
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except OSError:
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pass
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return wrapper
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def ClosedFDRaises(func):
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@wraps(func)
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def wrapper(self):
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#forcibly close the fd before invoking the problem function
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f = self.f
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os.close(f.fileno())
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try:
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func(self, f)
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except OSError as e:
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self.assertEqual(e.errno, errno.EBADF)
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else:
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self.fail("Should have raised OSError")
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finally:
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try:
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self.f.close()
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except OSError:
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pass
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return wrapper
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@ClosedFDRaises
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def testErrnoOnClose(self, f):
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f.close()
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@ClosedFDRaises
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def testErrnoOnClosedWrite(self, f):
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f.write(b'a')
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@ClosedFDRaises
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def testErrnoOnClosedSeek(self, f):
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f.seek(0)
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@ClosedFDRaises
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def testErrnoOnClosedTell(self, f):
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f.tell()
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@ClosedFDRaises
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def testErrnoOnClosedTruncate(self, f):
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f.truncate(0)
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@ClosedFD
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def testErrnoOnClosedSeekable(self, f):
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f.seekable()
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@ClosedFD
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def testErrnoOnClosedReadable(self, f):
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f.readable()
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@ClosedFD
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def testErrnoOnClosedWritable(self, f):
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f.writable()
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@ClosedFD
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def testErrnoOnClosedFileno(self, f):
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f.fileno()
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@ClosedFD
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def testErrnoOnClosedIsatty(self, f):
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self.assertEqual(f.isatty(), False)
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def ReopenForRead(self):
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try:
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self.f.close()
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except OSError:
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pass
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self.f = self.FileIO(TESTFN, 'r')
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os.close(self.f.fileno())
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return self.f
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@ClosedFDRaises
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def testErrnoOnClosedRead(self, f):
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f = self.ReopenForRead()
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f.read(1)
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@ClosedFDRaises
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def testErrnoOnClosedReadall(self, f):
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f = self.ReopenForRead()
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f.readall()
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@ClosedFDRaises
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def testErrnoOnClosedReadinto(self, f):
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f = self.ReopenForRead()
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a = array('b', b'x'*10)
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f.readinto(a)
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class CAutoFileTests(AutoFileTests, unittest.TestCase):
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FileIO = _io.FileIO
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modulename = '_io'
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class PyAutoFileTests(AutoFileTests, unittest.TestCase):
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FileIO = _pyio.FileIO
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modulename = '_pyio'
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class OtherFileTests:
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def testAbles(self):
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try:
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f = self.FileIO(TESTFN, "w")
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self.assertEqual(f.readable(), False)
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self.assertEqual(f.writable(), True)
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self.assertEqual(f.seekable(), True)
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f.close()
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f = self.FileIO(TESTFN, "r")
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self.assertEqual(f.readable(), True)
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self.assertEqual(f.writable(), False)
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self.assertEqual(f.seekable(), True)
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f.close()
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f = self.FileIO(TESTFN, "a+")
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self.assertEqual(f.readable(), True)
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self.assertEqual(f.writable(), True)
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self.assertEqual(f.seekable(), True)
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self.assertEqual(f.isatty(), False)
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f.close()
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if sys.platform != "win32":
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try:
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f = self.FileIO("/dev/tty", "a")
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except OSError:
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# When run in a cron job there just aren't any
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# ttys, so skip the test. This also handles other
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# OS'es that don't support /dev/tty.
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pass
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else:
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self.assertEqual(f.readable(), False)
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self.assertEqual(f.writable(), True)
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if sys.platform != "darwin" and \
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'bsd' not in sys.platform and \
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not sys.platform.startswith(('sunos', 'aix')):
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# Somehow /dev/tty appears seekable on some BSDs
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self.assertEqual(f.seekable(), False)
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self.assertEqual(f.isatty(), True)
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f.close()
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finally:
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os.unlink(TESTFN)
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def testInvalidModeStrings(self):
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# check invalid mode strings
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for mode in ("", "aU", "wU+", "rw", "rt"):
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try:
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f = self.FileIO(TESTFN, mode)
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except ValueError:
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pass
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else:
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f.close()
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self.fail('%r is an invalid file mode' % mode)
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def testModeStrings(self):
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# test that the mode attribute is correct for various mode strings
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# given as init args
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try:
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for modes in [('w', 'wb'), ('wb', 'wb'), ('wb+', 'rb+'),
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('w+b', 'rb+'), ('a', 'ab'), ('ab', 'ab'),
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('ab+', 'ab+'), ('a+b', 'ab+'), ('r', 'rb'),
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('rb', 'rb'), ('rb+', 'rb+'), ('r+b', 'rb+')]:
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# read modes are last so that TESTFN will exist first
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with self.FileIO(TESTFN, modes[0]) as f:
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self.assertEqual(f.mode, modes[1])
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finally:
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if os.path.exists(TESTFN):
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os.unlink(TESTFN)
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def testUnicodeOpen(self):
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# verify repr works for unicode too
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f = self.FileIO(str(TESTFN), "w")
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f.close()
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os.unlink(TESTFN)
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def testBytesOpen(self):
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# Opening a bytes filename
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try:
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fn = TESTFN.encode("ascii")
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except UnicodeEncodeError:
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self.skipTest('could not encode %r to ascii' % TESTFN)
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f = self.FileIO(fn, "w")
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try:
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f.write(b"abc")
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f.close()
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with open(TESTFN, "rb") as f:
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self.assertEqual(f.read(), b"abc")
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finally:
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os.unlink(TESTFN)
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@unittest.skipIf(sys.getfilesystemencoding() != 'utf-8',
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"test only works for utf-8 filesystems")
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def testUtf8BytesOpen(self):
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# Opening a UTF-8 bytes filename
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try:
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fn = TESTFN_UNICODE.encode("utf-8")
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except UnicodeEncodeError:
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self.skipTest('could not encode %r to utf-8' % TESTFN_UNICODE)
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f = self.FileIO(fn, "w")
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try:
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f.write(b"abc")
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f.close()
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with open(TESTFN_UNICODE, "rb") as f:
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self.assertEqual(f.read(), b"abc")
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finally:
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os.unlink(TESTFN_UNICODE)
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def testConstructorHandlesNULChars(self):
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fn_with_NUL = 'foo\0bar'
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self.assertRaises(ValueError, self.FileIO, fn_with_NUL, 'w')
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self.assertRaises(ValueError, self.FileIO, bytes(fn_with_NUL, 'ascii'), 'w')
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def testInvalidFd(self):
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self.assertRaises(ValueError, self.FileIO, -10)
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self.assertRaises(OSError, self.FileIO, make_bad_fd())
|
|
if sys.platform == 'win32':
|
|
import msvcrt
|
|
self.assertRaises(OSError, msvcrt.get_osfhandle, make_bad_fd())
|
|
|
|
def testBadModeArgument(self):
|
|
# verify that we get a sensible error message for bad mode argument
|
|
bad_mode = "qwerty"
|
|
try:
|
|
f = self.FileIO(TESTFN, bad_mode)
|
|
except ValueError as msg:
|
|
if msg.args[0] != 0:
|
|
s = str(msg)
|
|
if TESTFN in s or bad_mode not in s:
|
|
self.fail("bad error message for invalid mode: %s" % s)
|
|
# if msg.args[0] == 0, we're probably on Windows where there may be
|
|
# no obvious way to discover why open() failed.
|
|
else:
|
|
f.close()
|
|
self.fail("no error for invalid mode: %s" % bad_mode)
|
|
|
|
def testTruncate(self):
|
|
f = self.FileIO(TESTFN, 'w')
|
|
f.write(bytes(bytearray(range(10))))
|
|
self.assertEqual(f.tell(), 10)
|
|
f.truncate(5)
|
|
self.assertEqual(f.tell(), 10)
|
|
self.assertEqual(f.seek(0, io.SEEK_END), 5)
|
|
f.truncate(15)
|
|
self.assertEqual(f.tell(), 5)
|
|
self.assertEqual(f.seek(0, io.SEEK_END), 15)
|
|
f.close()
|
|
|
|
def testTruncateOnWindows(self):
|
|
def bug801631():
|
|
# SF bug <http://www.python.org/sf/801631>
|
|
# "file.truncate fault on windows"
|
|
f = self.FileIO(TESTFN, 'w')
|
|
f.write(bytes(range(11)))
|
|
f.close()
|
|
|
|
f = self.FileIO(TESTFN,'r+')
|
|
data = f.read(5)
|
|
if data != bytes(range(5)):
|
|
self.fail("Read on file opened for update failed %r" % data)
|
|
if f.tell() != 5:
|
|
self.fail("File pos after read wrong %d" % f.tell())
|
|
|
|
f.truncate()
|
|
if f.tell() != 5:
|
|
self.fail("File pos after ftruncate wrong %d" % f.tell())
|
|
|
|
f.close()
|
|
size = os.path.getsize(TESTFN)
|
|
if size != 5:
|
|
self.fail("File size after ftruncate wrong %d" % size)
|
|
|
|
try:
|
|
bug801631()
|
|
finally:
|
|
os.unlink(TESTFN)
|
|
|
|
def testAppend(self):
|
|
try:
|
|
f = open(TESTFN, 'wb')
|
|
f.write(b'spam')
|
|
f.close()
|
|
f = open(TESTFN, 'ab')
|
|
f.write(b'eggs')
|
|
f.close()
|
|
f = open(TESTFN, 'rb')
|
|
d = f.read()
|
|
f.close()
|
|
self.assertEqual(d, b'spameggs')
|
|
finally:
|
|
try:
|
|
os.unlink(TESTFN)
|
|
except:
|
|
pass
|
|
|
|
def testInvalidInit(self):
|
|
self.assertRaises(TypeError, self.FileIO, "1", 0, 0)
|
|
|
|
def testWarnings(self):
|
|
with check_warnings(quiet=True) as w:
|
|
self.assertEqual(w.warnings, [])
|
|
self.assertRaises(TypeError, self.FileIO, [])
|
|
self.assertEqual(w.warnings, [])
|
|
self.assertRaises(ValueError, self.FileIO, "/some/invalid/name", "rt")
|
|
self.assertEqual(w.warnings, [])
|
|
|
|
@unittest.skipIf(cosmo.MODE in ('tiny', 'rel'),
|
|
"fails on missing .py file in rel mode")
|
|
def testUnclosedFDOnException(self):
|
|
class MyException(Exception): pass
|
|
class MyFileIO(self.FileIO):
|
|
def __setattr__(self, name, value):
|
|
if name == "name":
|
|
raise MyException("blocked setting name")
|
|
return super(MyFileIO, self).__setattr__(name, value)
|
|
fd = os.open(__file__, os.O_RDONLY)
|
|
self.assertRaises(MyException, MyFileIO, fd)
|
|
os.close(fd) # should not raise OSError(EBADF)
|
|
|
|
class COtherFileTests(OtherFileTests, unittest.TestCase):
|
|
FileIO = _io.FileIO
|
|
modulename = '_io'
|
|
|
|
@cpython_only
|
|
def testInvalidFd_overflow(self):
|
|
# Issue 15989
|
|
import _testcapi
|
|
self.assertRaises(TypeError, self.FileIO, _testcapi.INT_MAX + 1)
|
|
self.assertRaises(TypeError, self.FileIO, _testcapi.INT_MIN - 1)
|
|
|
|
class PyOtherFileTests(OtherFileTests, unittest.TestCase):
|
|
FileIO = _pyio.FileIO
|
|
modulename = '_pyio'
|
|
|
|
|
|
def test_main():
|
|
# Historically, these tests have been sloppy about removing TESTFN.
|
|
# So get rid of it no matter what.
|
|
try:
|
|
run_unittest(CAutoFileTests, PyAutoFileTests,
|
|
COtherFileTests, PyOtherFileTests)
|
|
finally:
|
|
if os.path.exists(TESTFN):
|
|
os.unlink(TESTFN)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|