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57 lines
1.7 KiB
57 lines
1.7 KiB
#!/usr/bin/env python3
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import os
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import sys
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import tempfile
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from posix_parity import cleanup_paths
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from posix_parity import compare_calls
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from posix_parity import fail
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from posix_parity import join
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from posix_parity import touch
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def main():
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if len(sys.argv) != 2:
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print("usage: TEST_posix_truncate_ftruncate <mountpoint>", file=sys.stderr)
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return 1
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mount = sys.argv[1]
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with tempfile.TemporaryDirectory() as native:
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merge_file = join(mount, "posix-truncate/file")
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native_file = join(native, "posix-truncate/file")
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merge_missing = join(mount, "posix-truncate/missing")
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native_missing = join(native, "posix-truncate/missing")
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cleanup_paths([merge_file])
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touch(merge_file, b"1234567890")
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touch(native_file, b"1234567890")
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err = compare_calls("truncate shrink", lambda: os.truncate(merge_file, 3), lambda: os.truncate(native_file, 3))
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if err:
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return fail(err)
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err = compare_calls("truncate ENOENT", lambda: os.truncate(merge_missing, 1), lambda: os.truncate(native_missing, 1))
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if err:
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return fail(err)
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mfd = os.open(merge_file, os.O_RDWR)
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nfd = os.open(native_file, os.O_RDWR)
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try:
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err = compare_calls("ftruncate grow", lambda: os.ftruncate(mfd, 16), lambda: os.ftruncate(nfd, 16))
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if err:
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return fail(err)
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finally:
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os.close(mfd)
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os.close(nfd)
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err = compare_calls("ftruncate EBADF", lambda: os.ftruncate(-1, 4), lambda: os.ftruncate(-1, 4))
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if err:
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return fail(err)
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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