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freebsd/lib/libarchive/test/test_empty_write.c
Tim Kientzle 2a5e8d812c Extensive improvements to the libarchive_test test program that
exercises and verifies the libarchive APIs:

* Improved error reporting; hexdumps are now provided for
  many file/memory content differences.
* Overall status more clearly counts "tests" and "assertions"
* Reference files can now be stored on disk instead of having
  to be compiled into the test program itself.  A couple of
  tests have been converted to this more natural structure.
* Several memory leaks corrected so that leaks within libarchive
  itself can be more easily detected and diagnosed.
* New test: GNU tar compatibility
* New test: Zip compatibility
* New test: Zero-byte writes to a compressed archive entry
* New test: archive_entry_strmode() format verification
* New test: mtree reader
* New test: write/read of large (2G - 1TB) entries to tar archives
  (thanks to recent performance work, this test only requires a few seconds)
* New test: detailed format verification of cpio odc and newc writers
* Many minor additions/improvements to existing tests as well.
2008-01-01 22:28:04 +00:00

119 lines
3.9 KiB
C

/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "test.h"
__FBSDID("$FreeBSD$");
DEFINE_TEST(test_empty_write)
{
char buff[32768];
struct archive_entry *ae;
struct archive *a;
size_t used;
/*
* Exercise a zero-byte write to a gzip-compressed archive.
*/
/* Create a new archive in memory. */
assert((a = archive_write_new()) != NULL);
assertA(0 == archive_write_set_format_ustar(a));
assertA(0 == archive_write_set_compression_gzip(a));
assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));
/* Write a file to it. */
assert((ae = archive_entry_new()) != NULL);
archive_entry_copy_pathname(ae, "file");
archive_entry_set_mode(ae, S_IFREG | 0755);
archive_entry_set_size(ae, 0);
assertA(0 == archive_write_header(a, ae));
/* THE TEST: write zero bytes to this entry. */
/* This used to crash. */
assertEqualIntA(a, 0, archive_write_data(a, "", 0));
/* Close out the archive. */
assertA(0 == archive_write_close(a));
#if ARCHIVE_API_VERSION > 1
assertA(0 == archive_write_finish(a));
#else
archive_write_finish(a);
#endif
/*
* Again, with bzip2 compression.
*/
/* Create a new archive in memory. */
assert((a = archive_write_new()) != NULL);
assertA(0 == archive_write_set_format_ustar(a));
assertA(0 == archive_write_set_compression_bzip2(a));
assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));
/* Write a file to it. */
assert((ae = archive_entry_new()) != NULL);
archive_entry_copy_pathname(ae, "file");
archive_entry_set_mode(ae, S_IFREG | 0755);
archive_entry_set_size(ae, 0);
assertA(0 == archive_write_header(a, ae));
/* THE TEST: write zero bytes to this entry. */
assertEqualIntA(a, 0, archive_write_data(a, "", 0));
/* Close out the archive. */
assertA(0 == archive_write_close(a));
#if ARCHIVE_API_VERSION > 1
assertA(0 == archive_write_finish(a));
#else
archive_write_finish(a);
#endif
/*
* For good measure, one more time with no compression.
*/
/* Create a new archive in memory. */
assert((a = archive_write_new()) != NULL);
assertA(0 == archive_write_set_format_ustar(a));
assertA(0 == archive_write_set_compression_none(a));
assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));
/* Write a file to it. */
assert((ae = archive_entry_new()) != NULL);
archive_entry_copy_pathname(ae, "file");
archive_entry_set_mode(ae, S_IFREG | 0755);
archive_entry_set_size(ae, 0);
assertA(0 == archive_write_header(a, ae));
/* THE TEST: write zero bytes to this entry. */
assertEqualIntA(a, 0, archive_write_data(a, "", 0));
/* Close out the archive. */
assertA(0 == archive_write_close(a));
#if ARCHIVE_API_VERSION > 1
assertA(0 == archive_write_finish(a));
#else
archive_write_finish(a);
#endif
}