/*
 * Copyright (c) 2003-2006 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.
 *
 * $FreeBSD$
 */

/* Every test program should #include "test.h" as the first thing. */

/*
 * The goal of this file (and the matching test.c) is to
 * simplify the very repetitive test-*.c test programs.
 */
#if defined(HAVE_CONFIG_H)
/* Most POSIX platforms use the 'configure' script to build config.h */
#include "config.h"
#elif defined(__FreeBSD__)
/* Building as part of FreeBSD system requires a pre-built config.h. */
#include "config_freebsd.h"
#elif defined(_WIN32) && !defined(__CYGWIN__)
/* Win32 can't run the 'configure' script. */
#include "config_windows.h"
#else
/* Warn if the library hasn't been (automatically or manually) configured. */
#error Oops: No config.h and no pre-built configuration in test.h.
#endif

#if !defined(_WIN32) || defined(__CYGWIN__)
#include <dirent.h>
#else
#include "../cpio_windows.h"
#endif
#if defined(__CYGWIN__)
/* In cygwin-1.7.x, the .nlinks field of directories is
 * deliberately inaccurate, because to populate it requires
 * stat'ing every file in the directory, which is slow.
 * So, as an optimization cygwin doesn't do that in newer
 * releases; all correct applications on any platform should
 * never rely on it being > 1, so this optimization doesn't
 * impact the operation of correctly coded applications.
 * Therefore, the cpio test should not check its accuracy
 */
# define NLINKS_INACCURATE_FOR_DIRS
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#if !defined(_WIN32) || defined(__CYGWIN__)
#include <unistd.h>
#endif
#include <time.h>
#include <wchar.h>

#ifdef USE_DMALLOC
#include <dmalloc.h>
#endif

/* No non-FreeBSD platform will have __FBSDID, so just define it here. */
#ifdef __FreeBSD__
#include <sys/cdefs.h>  /* For __FBSDID */
#else
#undef __FBSDID
#define	__FBSDID(a)     struct _undefined_hack
#endif

/*
 * Redefine DEFINE_TEST for use in defining the test functions.
 */
#undef DEFINE_TEST
#define DEFINE_TEST(name) void name(void); void name(void)

/* An implementation of the standard assert() macro */
#define assert(e)   test_assert(__FILE__, __LINE__, (e), #e, NULL)

/* Assert two integers are the same.  Reports value of each one if not. */
#define assertEqualInt(v1,v2)   \
  test_assert_equal_int(__FILE__, __LINE__, (v1), #v1, (v2), #v2, NULL)

/* Assert two strings are the same.  Reports value of each one if not. */
#define assertEqualString(v1,v2)   \
  test_assert_equal_string(__FILE__, __LINE__, (v1), #v1, (v2), #v2, NULL)
/* As above, but v1 and v2 are wchar_t * */
#define assertEqualWString(v1,v2)   \
  test_assert_equal_wstring(__FILE__, __LINE__, (v1), #v1, (v2), #v2, NULL)
/* As above, but raw blocks of bytes. */
#define assertEqualMem(v1, v2, l)	\
  test_assert_equal_mem(__FILE__, __LINE__, (v1), #v1, (v2), #v2, (l), #l, NULL)
/* Assert two files are the same; allow printf-style expansion of second name.
 * See below for comments about variable arguments here...
 */
#define assertEqualFile		\
  test_setup(__FILE__, __LINE__);test_assert_equal_file
/* Assert that a file is empty; supports printf-style arguments. */
#define assertEmptyFile		\
  test_setup(__FILE__, __LINE__);test_assert_empty_file
/* Assert that a file exists; supports printf-style arguments. */
#define assertFileExists		\
  test_setup(__FILE__, __LINE__);test_assert_file_exists
/* Assert that a file exists; supports printf-style arguments. */
#define assertFileNotExists		\
  test_setup(__FILE__, __LINE__);test_assert_file_not_exists
/* Assert that file contents match a string; supports printf-style arguments. */
#define assertFileContents             \
  test_setup(__FILE__, __LINE__);test_assert_file_contents
#define assertTextFileContents         \
  test_setup(__FILE__, __LINE__);test_assert_text_file_contents

/*
 * This would be simple with C99 variadic macros, but I don't want to
 * require that.  Instead, I insert a function call before each
 * skipping() call to pass the file and line information down.  Crude,
 * but effective.
 */
#define skipping	\
  test_setup(__FILE__, __LINE__);test_skipping

/* Function declarations.  These are defined in test_utility.c. */
void failure(const char *fmt, ...);
void test_setup(const char *, int);
void test_skipping(const char *fmt, ...);
int test_assert(const char *, int, int, const char *, void *);
int test_assert_empty_file(const char *, ...);
int test_assert_equal_file(const char *, const char *, ...);
int test_assert_equal_int(const char *, int, int, const char *, int, const char *, void *);
int test_assert_equal_string(const char *, int, const char *v1, const char *, const char *v2, const char *, void *);
int test_assert_equal_wstring(const char *, int, const wchar_t *v1, const char *, const wchar_t *v2, const char *, void *);
int test_assert_equal_mem(const char *, int, const char *, const char *, const char *, const char *, size_t, const char *, void *);
int test_assert_file_contents(const void *, int, const char *, ...);
int test_assert_text_file_contents(const char *buff, const char *f);
int test_assert_file_exists(const char *, ...);
int test_assert_file_not_exists(const char *, ...);

/* Like sprintf, then system() */
int systemf(const char * fmt, ...);

/* Suck file into string allocated via malloc(). Call free() when done. */
/* Supports printf-style args: slurpfile(NULL, "%s/myfile", refdir); */
char *slurpfile(size_t *, const char *fmt, ...);

/* Extracts named reference file to the current directory. */
void extract_reference_file(const char *);

/*
 * Special interfaces for program test harness.
 */

/* Pathname of exe to be tested. */
const char *testprog;