mirror of
https://github.com/facebook/sapling.git
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deee232d74
Summary: Mostly empty lines removed and added. A few bugfixes on excessive line splitting. Reviewed By: cooperlees Differential Revision: D8198776 fbshipit-source-id: 4361faf4a2b9347d57fb6e1342c494575f2beb67
49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (c) 2016-present, Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under the BSD-style license found in the
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# LICENSE file in the root directory of this source tree. An additional grant
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# of patent rights can be found in the PATENTS file in the same directory.
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import errno
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import os
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from .lib import testcase
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@testcase.eden_repo_test
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class OpenExclusiveTest(testcase.EdenRepoTest):
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def populate_repo(self) -> None:
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self.repo.write_file("readme.txt", "test\n")
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self.repo.commit("Initial commit.")
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def test_oexcl(self) -> None:
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filename = os.path.join(self.mount, "makeme")
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fd = os.open(filename, os.O_EXCL | os.O_CREAT | os.O_RDWR)
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self.assertGreater(fd, -1, msg="Opened file exclusively")
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try:
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os.write(fd, b"foo\n")
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finally:
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os.close(fd)
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with self.assertRaises(OSError) as context:
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fd = os.open(filename, os.O_EXCL | os.O_CREAT | os.O_RDWR)
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if fd != -1:
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os.close(fd)
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self.assertEqual(
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errno.EEXIST,
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context.exception.errno,
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msg="O_EXCL for an existing file raises EEXIST",
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)
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os.unlink(filename)
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fd = os.open(filename, os.O_EXCL | os.O_CREAT | os.O_RDWR)
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self.assertGreater(
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fd, -1, msg="Subsequent O_EXCL is not blocked after " + "removing the file"
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)
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os.close(fd)
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