libarchive/test/test_write_format_7zip_empty.c - third_party/libarchive - Git at Google

 /*-
  * Copyright (c) 2011-2012 Michihiro NAKAJIMA
  * 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("$FreeBSD$");

 /*
  * Test writing an empty archive.
  */
 DEFINE_TEST(test_write_format_7zip_empty_archive)
 {
 	struct archive *a;
 	size_t buffsize = 1000;
 	char *buff;
 	size_t used;

 	buff = malloc(buffsize);

 	/* Create a new archive in memory. */
 	assert((a = archive_write_new()) != NULL);
 	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_7zip(a));
 	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));
 	assertEqualIntA(a, ARCHIVE_OK,
 	    archive_write_open_memory(a, buff, buffsize, &used));

 	/* Close out the archive. */
 	assertEqualInt(ARCHIVE_OK, archive_write_close(a));
 	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

 	/* Verify the archive file size. */
 	assertEqualInt(32, used);

 	/* Verify the initial header. */
 	assertEqualMem(buff,
 		"\x37\x7a\xbc\xaf\x27\x1c\x00\x03"
 		"\x8d\x9b\xd5\x0f\x00\x00\x00\x00"
 		"\x00\x00\x00\x00\x00\x00\x00\x00"
 		"\x00\x00\x00\x00\x00\x00\x00\x00", 32);

 	free(buff);
 }

 /*
  * Test writing an empty file.
  */
 static void
 test_only_empty_file(void)
 {
 	struct archive *a;
 	struct archive_entry *ae;
 	size_t buffsize = 1000;
 	char *buff;
 	size_t used;

 	buff = malloc(buffsize);

 	/* Create a new archive in memory. */
 	assert((a = archive_write_new()) != NULL);
 	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_7zip(a));
 	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));
 	assertEqualIntA(a, ARCHIVE_OK,
 	    archive_write_open_memory(a, buff, buffsize, &used));

 	/*
 	 * Write an empty file to it.
 	 */
 	assert((ae = archive_entry_new()) != NULL);
 	archive_entry_set_mtime(ae, 1, 10);
 	assertEqualInt(1, archive_entry_mtime(ae));
 	assertEqualInt(10, archive_entry_mtime_nsec(ae));
 	archive_entry_set_atime(ae, 2, 20);
 	assertEqualInt(2, archive_entry_atime(ae));
 	assertEqualInt(20, archive_entry_atime_nsec(ae));
 	archive_entry_set_ctime(ae, 0, 100);
 	assertEqualInt(0, archive_entry_ctime(ae));
 	assertEqualInt(100, archive_entry_ctime_nsec(ae));
 	archive_entry_copy_pathname(ae, "empty");
 	assertEqualString("empty", archive_entry_pathname(ae));
 	archive_entry_set_mode(ae, AE_IFREG | 0755);
 	assertEqualInt((S_IFREG | 0755), archive_entry_mode(ae));

 	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
 	archive_entry_free(ae);

 	/* Close out the archive. */
 	assertEqualInt(ARCHIVE_OK, archive_write_close(a));
 	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

 	/* Verify the archive file size. */
 	assertEqualInt(102, used);

 	/* Verify the initial header. */
 	assertEqualMem(buff,
 		"\x37\x7a\xbc\xaf\x27\x1c\x00\x03"
 		"\x00\x5b\x58\x25\x00\x00\x00\x00"
 		"\x00\x00\x00\x00\x46\x00\x00\x00"
 		"\x00\x00\x00\x00\x8f\xce\x1d\xf3", 32);

 	/*
 	 * Now, read the data back.
 	 */
 	/* With the test memory reader -- seeking mode. */
 	assert((a = archive_read_new()) != NULL);
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
 	assertEqualIntA(a, ARCHIVE_OK, read_open_memory_seek(a, buff, used, 7));

 	/*
 	 * Read and verify an empty file.
 	 */
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
 	assertEqualInt(1, archive_entry_mtime(ae));
 	assertEqualInt(0, archive_entry_mtime_nsec(ae));
 	assertEqualInt(2, archive_entry_atime(ae));
 	assertEqualInt(0, archive_entry_atime_nsec(ae));
 	assertEqualInt(0, archive_entry_ctime(ae));
 	assertEqualInt(100, archive_entry_ctime_nsec(ae));
 	assertEqualString("empty", archive_entry_pathname(ae));
 	assertEqualInt(AE_IFREG | 0755, archive_entry_mode(ae));
 	assertEqualInt(0, archive_entry_size(ae));

 	/* Verify the end of the archive. */
 	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));

 	/* Verify archive format. */
 	assertEqualIntA(a, ARCHIVE_FILTER_NONE, archive_filter_code(a, 0));
 	assertEqualIntA(a, ARCHIVE_FORMAT_7ZIP, archive_format(a));

 	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
 	assertEqualInt(ARCHIVE_OK, archive_read_free(a));

 	free(buff);
 }

 static void
 test_only_empty_files(void)
 {
 	struct archive *a;
 	struct archive_entry *ae;
 	size_t buffsize = 1000;
 	char *buff;
 	size_t used;

 	buff = malloc(buffsize);

 	/* Create a new archive in memory. */
 	assert((a = archive_write_new()) != NULL);
 	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_7zip(a));
 	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));
 	assertEqualIntA(a, ARCHIVE_OK,
 	    archive_write_open_memory(a, buff, buffsize, &used));

 	/*
 	 * Write an empty file to it.
 	 */
 	assert((ae = archive_entry_new()) != NULL);
 	archive_entry_set_mtime(ae, 1, 10);
 	assertEqualInt(1, archive_entry_mtime(ae));
 	assertEqualInt(10, archive_entry_mtime_nsec(ae));
 	archive_entry_set_atime(ae, 2, 20);
 	assertEqualInt(2, archive_entry_atime(ae));
 	assertEqualInt(20, archive_entry_atime_nsec(ae));
 	archive_entry_copy_pathname(ae, "empty");
 	assertEqualString("empty", archive_entry_pathname(ae));
 	archive_entry_set_mode(ae, AE_IFREG | 0755);
 	assertEqualInt((AE_IFREG | 0755), archive_entry_mode(ae));

 	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
 	archive_entry_free(ae);

 	/*
 	 * Write second empty file to it.
 	 */
 	assert((ae = archive_entry_new()) != NULL);
 	archive_entry_set_mtime(ae, 2, 10);
 	assertEqualInt(2, archive_entry_mtime(ae));
 	assertEqualInt(10, archive_entry_mtime_nsec(ae));
 	archive_entry_set_ctime(ae, 2, 10);
 	assertEqualInt(2, archive_entry_ctime(ae));
 	assertEqualInt(10, archive_entry_ctime_nsec(ae));
 	archive_entry_copy_pathname(ae, "empty2");
 	assertEqualString("empty2", archive_entry_pathname(ae));
 	archive_entry_set_mode(ae, AE_IFREG | 0644);
 	assertEqualInt((AE_IFREG | 0644), archive_entry_mode(ae));

 	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
 	archive_entry_free(ae);

 	/*
 	 * Write third empty file to it.
 	 */
 	assert((ae = archive_entry_new()) != NULL);
 	archive_entry_set_mtime(ae, 3, 10);
 	assertEqualInt(3, archive_entry_mtime(ae));
 	assertEqualInt(10, archive_entry_mtime_nsec(ae));
 	archive_entry_copy_pathname(ae, "empty3");
 	assertEqualString("empty3", archive_entry_pathname(ae));
 	archive_entry_set_mode(ae, AE_IFREG | 0644);
 	assertEqualInt((AE_IFREG | 0644), archive_entry_mode(ae));

 	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
 	archive_entry_free(ae);

 	/* Close out the archive. */
 	assertEqualInt(ARCHIVE_OK, archive_write_close(a));
 	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

 	/* Verify the initial header. */
 	assertEqualMem(buff, "\x37\x7a\xbc\xaf\x27\x1c\x00\x03", 8);

 	/*
 	 * Now, read the data back.
 	 */
 	/* With the test memory reader -- seeking mode. */
 	assert((a = archive_read_new()) != NULL);
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
 	assertEqualIntA(a, ARCHIVE_OK, read_open_memory_seek(a, buff, used, 7));

 	/*
 	 * Read and verify an empty file.
 	 */
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
 	assertEqualInt(1, archive_entry_mtime(ae));
 	assertEqualInt(0, archive_entry_mtime_nsec(ae));
 	assertEqualInt(2, archive_entry_atime(ae));
 	assertEqualInt(0, archive_entry_atime_nsec(ae));
 	assertEqualInt(0, archive_entry_ctime(ae));
 	assertEqualString("empty", archive_entry_pathname(ae));
 	assertEqualInt(AE_IFREG | 0755, archive_entry_mode(ae));
 	assertEqualInt(0, archive_entry_size(ae));

 	/*
 	 * Read and verify second empty file.
 	 */
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
 	assertEqualInt(2, archive_entry_mtime(ae));
 	assertEqualInt(0, archive_entry_mtime_nsec(ae));
 	assertEqualInt(0, archive_entry_atime(ae));
 	assertEqualInt(2, archive_entry_ctime(ae));
 	assertEqualInt(0, archive_entry_ctime_nsec(ae));
 	assertEqualString("empty2", archive_entry_pathname(ae));
 	assertEqualInt(AE_IFREG | 0644, archive_entry_mode(ae));
 	assertEqualInt(0, archive_entry_size(ae));

 	/*
 	 * Read and verify third empty file.
 	 */
 	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
 	assertEqualInt(3, archive_entry_mtime(ae));
 	assertEqualInt(0, archive_entry_mtime_nsec(ae));
 	assertEqualInt(0, archive_entry_atime(ae));
 	assertEqualInt(0, archive_entry_ctime(ae));
 	assertEqualString("empty3", archive_entry_pathname(ae));
 	assertEqualInt(AE_IFREG | 0644, archive_entry_mode(ae));
 	assertEqualInt(0, archive_entry_size(ae));

 	/* Verify the end of the archive. */
 	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));

 	/* Verify archive format. */
 	assertEqualIntA(a, ARCHIVE_FILTER_NONE, archive_filter_code(a, 0));
 	assertEqualIntA(a, ARCHIVE_FORMAT_7ZIP, archive_format(a));

 	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
 	assertEqualInt(ARCHIVE_OK, archive_read_free(a));

 	free(buff);
 }

 DEFINE_TEST(test_write_format_7zip_empty_files)
 {
 	/* Test that write an empty file. */
 	test_only_empty_file();
 	test_only_empty_files();
 }
	/*-
	* Copyright (c) 2011-2012 Michihiro NAKAJIMA
	* 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("$FreeBSD$");

	/*
	* Test writing an empty archive.
	*/
	DEFINE_TEST(test_write_format_7zip_empty_archive)
	{
	struct archive *a;
	size_t buffsize = 1000;
	char *buff;
	size_t used;

	buff = malloc(buffsize);

	/* Create a new archive in memory. */
	assert((a = archive_write_new()) != NULL);
	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_7zip(a));
	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));
	assertEqualIntA(a, ARCHIVE_OK,
	archive_write_open_memory(a, buff, buffsize, &used));

	/* Close out the archive. */
	assertEqualInt(ARCHIVE_OK, archive_write_close(a));
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Verify the archive file size. */
	assertEqualInt(32, used);

	/* Verify the initial header. */
	assertEqualMem(buff,
	"\x37\x7a\xbc\xaf\x27\x1c\x00\x03"
	"\x8d\x9b\xd5\x0f\x00\x00\x00\x00"
	"\x00\x00\x00\x00\x00\x00\x00\x00"
	"\x00\x00\x00\x00\x00\x00\x00\x00", 32);

	free(buff);
	}

	/*
	* Test writing an empty file.
	*/
	static void
	test_only_empty_file(void)
	{
	struct archive *a;
	struct archive_entry *ae;
	size_t buffsize = 1000;
	char *buff;
	size_t used;

	buff = malloc(buffsize);

	/* Create a new archive in memory. */
	assert((a = archive_write_new()) != NULL);
	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_7zip(a));
	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));
	assertEqualIntA(a, ARCHIVE_OK,
	archive_write_open_memory(a, buff, buffsize, &used));

	/*
	* Write an empty file to it.
	*/
	assert((ae = archive_entry_new()) != NULL);
	archive_entry_set_mtime(ae, 1, 10);
	assertEqualInt(1, archive_entry_mtime(ae));
	assertEqualInt(10, archive_entry_mtime_nsec(ae));
	archive_entry_set_atime(ae, 2, 20);
	assertEqualInt(2, archive_entry_atime(ae));
	assertEqualInt(20, archive_entry_atime_nsec(ae));
	archive_entry_set_ctime(ae, 0, 100);
	assertEqualInt(0, archive_entry_ctime(ae));
	assertEqualInt(100, archive_entry_ctime_nsec(ae));
	archive_entry_copy_pathname(ae, "empty");
	assertEqualString("empty", archive_entry_pathname(ae));
	archive_entry_set_mode(ae, AE_IFREG \| 0755);
	assertEqualInt((S_IFREG \| 0755), archive_entry_mode(ae));

	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
	archive_entry_free(ae);

	/* Close out the archive. */
	assertEqualInt(ARCHIVE_OK, archive_write_close(a));
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Verify the archive file size. */
	assertEqualInt(102, used);

	/* Verify the initial header. */
	assertEqualMem(buff,
	"\x37\x7a\xbc\xaf\x27\x1c\x00\x03"
	"\x00\x5b\x58\x25\x00\x00\x00\x00"
	"\x00\x00\x00\x00\x46\x00\x00\x00"
	"\x00\x00\x00\x00\x8f\xce\x1d\xf3", 32);

	/*
	* Now, read the data back.
	*/
	/* With the test memory reader -- seeking mode. */
	assert((a = archive_read_new()) != NULL);
	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
	assertEqualIntA(a, ARCHIVE_OK, read_open_memory_seek(a, buff, used, 7));

	/*
	* Read and verify an empty file.
	*/
	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
	assertEqualInt(1, archive_entry_mtime(ae));
	assertEqualInt(0, archive_entry_mtime_nsec(ae));
	assertEqualInt(2, archive_entry_atime(ae));
	assertEqualInt(0, archive_entry_atime_nsec(ae));
	assertEqualInt(0, archive_entry_ctime(ae));
	assertEqualInt(100, archive_entry_ctime_nsec(ae));
	assertEqualString("empty", archive_entry_pathname(ae));
	assertEqualInt(AE_IFREG \| 0755, archive_entry_mode(ae));
	assertEqualInt(0, archive_entry_size(ae));

	/* Verify the end of the archive. */
	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));

	/* Verify archive format. */
	assertEqualIntA(a, ARCHIVE_FILTER_NONE, archive_filter_code(a, 0));
	assertEqualIntA(a, ARCHIVE_FORMAT_7ZIP, archive_format(a));

	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
	assertEqualInt(ARCHIVE_OK, archive_read_free(a));

	free(buff);
	}

	static void
	test_only_empty_files(void)
	{
	struct archive *a;
	struct archive_entry *ae;
	size_t buffsize = 1000;
	char *buff;
	size_t used;

	buff = malloc(buffsize);

	/* Create a new archive in memory. */
	assert((a = archive_write_new()) != NULL);
	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_7zip(a));
	assertEqualIntA(a, ARCHIVE_OK, archive_write_add_filter_none(a));
	assertEqualIntA(a, ARCHIVE_OK,
	archive_write_open_memory(a, buff, buffsize, &used));

	/*
	* Write an empty file to it.
	*/
	assert((ae = archive_entry_new()) != NULL);
	archive_entry_set_mtime(ae, 1, 10);
	assertEqualInt(1, archive_entry_mtime(ae));
	assertEqualInt(10, archive_entry_mtime_nsec(ae));
	archive_entry_set_atime(ae, 2, 20);
	assertEqualInt(2, archive_entry_atime(ae));
	assertEqualInt(20, archive_entry_atime_nsec(ae));
	archive_entry_copy_pathname(ae, "empty");
	assertEqualString("empty", archive_entry_pathname(ae));
	archive_entry_set_mode(ae, AE_IFREG \| 0755);
	assertEqualInt((AE_IFREG \| 0755), archive_entry_mode(ae));

	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
	archive_entry_free(ae);

	/*
	* Write second empty file to it.
	*/
	assert((ae = archive_entry_new()) != NULL);
	archive_entry_set_mtime(ae, 2, 10);
	assertEqualInt(2, archive_entry_mtime(ae));
	assertEqualInt(10, archive_entry_mtime_nsec(ae));
	archive_entry_set_ctime(ae, 2, 10);
	assertEqualInt(2, archive_entry_ctime(ae));
	assertEqualInt(10, archive_entry_ctime_nsec(ae));
	archive_entry_copy_pathname(ae, "empty2");
	assertEqualString("empty2", archive_entry_pathname(ae));
	archive_entry_set_mode(ae, AE_IFREG \| 0644);
	assertEqualInt((AE_IFREG \| 0644), archive_entry_mode(ae));

	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
	archive_entry_free(ae);

	/*
	* Write third empty file to it.
	*/
	assert((ae = archive_entry_new()) != NULL);
	archive_entry_set_mtime(ae, 3, 10);
	assertEqualInt(3, archive_entry_mtime(ae));
	assertEqualInt(10, archive_entry_mtime_nsec(ae));
	archive_entry_copy_pathname(ae, "empty3");
	assertEqualString("empty3", archive_entry_pathname(ae));
	archive_entry_set_mode(ae, AE_IFREG \| 0644);
	assertEqualInt((AE_IFREG \| 0644), archive_entry_mode(ae));

	assertEqualInt(ARCHIVE_OK, archive_write_header(a, ae));
	archive_entry_free(ae);

	/* Close out the archive. */
	assertEqualInt(ARCHIVE_OK, archive_write_close(a));
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Verify the initial header. */
	assertEqualMem(buff, "\x37\x7a\xbc\xaf\x27\x1c\x00\x03", 8);

	/*
	* Now, read the data back.
	*/
	/* With the test memory reader -- seeking mode. */
	assert((a = archive_read_new()) != NULL);
	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
	assertEqualIntA(a, ARCHIVE_OK, read_open_memory_seek(a, buff, used, 7));

	/*
	* Read and verify an empty file.
	*/
	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
	assertEqualInt(1, archive_entry_mtime(ae));
	assertEqualInt(0, archive_entry_mtime_nsec(ae));
	assertEqualInt(2, archive_entry_atime(ae));
	assertEqualInt(0, archive_entry_atime_nsec(ae));
	assertEqualInt(0, archive_entry_ctime(ae));
	assertEqualString("empty", archive_entry_pathname(ae));
	assertEqualInt(AE_IFREG \| 0755, archive_entry_mode(ae));
	assertEqualInt(0, archive_entry_size(ae));

	/*
	* Read and verify second empty file.
	*/
	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
	assertEqualInt(2, archive_entry_mtime(ae));
	assertEqualInt(0, archive_entry_mtime_nsec(ae));
	assertEqualInt(0, archive_entry_atime(ae));
	assertEqualInt(2, archive_entry_ctime(ae));
	assertEqualInt(0, archive_entry_ctime_nsec(ae));
	assertEqualString("empty2", archive_entry_pathname(ae));
	assertEqualInt(AE_IFREG \| 0644, archive_entry_mode(ae));
	assertEqualInt(0, archive_entry_size(ae));

	/*
	* Read and verify third empty file.
	*/
	assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae));
	assertEqualInt(3, archive_entry_mtime(ae));
	assertEqualInt(0, archive_entry_mtime_nsec(ae));
	assertEqualInt(0, archive_entry_atime(ae));
	assertEqualInt(0, archive_entry_ctime(ae));
	assertEqualString("empty3", archive_entry_pathname(ae));
	assertEqualInt(AE_IFREG \| 0644, archive_entry_mode(ae));
	assertEqualInt(0, archive_entry_size(ae));

	/* Verify the end of the archive. */
	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));

	/* Verify archive format. */
	assertEqualIntA(a, ARCHIVE_FILTER_NONE, archive_filter_code(a, 0));
	assertEqualIntA(a, ARCHIVE_FORMAT_7ZIP, archive_format(a));

	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
	assertEqualInt(ARCHIVE_OK, archive_read_free(a));

	free(buff);
	}

	DEFINE_TEST(test_write_format_7zip_empty_files)
	{
	/* Test that write an empty file. */
	test_only_empty_file();
	test_only_empty_files();
	}