test/testfile.c
author Sam Lantinga <slouken@libsdl.org>
Tue, 23 Apr 2019 07:59:31 -0700
changeset 12714 9b7633bd0aa0
parent 12503 806492103856
permissions -rw-r--r--
Use _Exit() when available
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/*
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  Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely.
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*/
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/* sanity tests on SDL_rwops.c (usefull for alternative implementations of stdio rwops) */
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/* quiet windows compiler warnings */
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#define _CRT_NONSTDC_NO_WARNINGS
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#include <stdlib.h>
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#ifndef _MSC_VER
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#include <unistd.h>
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#endif
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#include "SDL.h"
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#include <stdio.h>
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/* WARNING ! those 2 files will be destroyed by this test program */
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#ifdef __IPHONEOS__
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#define FBASENAME1  "../Documents/sdldata1" /* this file will be created during tests */
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#define FBASENAME2  "../Documents/sdldata2"     /* this file should not exist before starting test */
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#else
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#define FBASENAME1  "sdldata1"      /* this file will be created during tests */
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#define FBASENAME2  "sdldata2"      /* this file should not exist before starting test */
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#endif
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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static void
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cleanup(void)
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{
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    unlink(FBASENAME1);
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    unlink(FBASENAME2);
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}
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static void
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rwops_error_quit(unsigned line, SDL_RWops * rwops)
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{
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    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "testfile.c(%d): failed\n", line);
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    if (rwops) {
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        rwops->close(rwops);    /* This calls SDL_FreeRW(rwops); */
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    }
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    cleanup();
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    exit(1);                    /* quit with rwops error (test failed) */
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}
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#define RWOP_ERR_QUIT(x)    rwops_error_quit( __LINE__, (x) )
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int
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main(int argc, char *argv[])
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{
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    SDL_RWops *rwops = NULL;
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    char test_buf[30];
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    /* Enable standard application logging */
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    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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    cleanup();
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/* test 1 : basic argument test: all those calls to SDL_RWFromFile should fail */
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    rwops = SDL_RWFromFile(NULL, NULL);
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops = SDL_RWFromFile(NULL, "ab+");
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops = SDL_RWFromFile(NULL, "sldfkjsldkfj");
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops = SDL_RWFromFile("something", "");
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops = SDL_RWFromFile("something", NULL);
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    SDL_Log("test1 OK\n");
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/* test 2 : check that inexistent file is not successfully opened/created when required */
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/* modes : r, r+ imply that file MUST exist
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   modes : a, a+, w, w+ checks that it succeeds (file may not exists)
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 */
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    rwops = SDL_RWFromFile(FBASENAME2, "rb");   /* this file doesn't exist that call must fail */
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops = SDL_RWFromFile(FBASENAME2, "rb+");  /* this file doesn't exist that call must fail */
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    if (rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops = SDL_RWFromFile(FBASENAME2, "wb");
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    unlink(FBASENAME2);
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    rwops = SDL_RWFromFile(FBASENAME2, "wb+");
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    unlink(FBASENAME2);
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    rwops = SDL_RWFromFile(FBASENAME2, "ab");
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    unlink(FBASENAME2);
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    rwops = SDL_RWFromFile(FBASENAME2, "ab+");
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    unlink(FBASENAME2);
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    SDL_Log("test2 OK\n");
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/* test 3 : creation, writing , reading, seeking,
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            test : w mode, r mode, w+ mode
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 */
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    rwops = SDL_RWFromFile(FBASENAME1, "wb");   /* write only */
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->write(rwops, "1234567890", 10, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (10 != rwops->write(rwops, "1234567890", 1, 10))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->write(rwops, "1234567", 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);   /* we are in write only mode */
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    rwops->close(rwops);
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    rwops = SDL_RWFromFile(FBASENAME1, "rb");   /* read mode, file must exists */
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (20 != rwops->seek(rwops, -7, RW_SEEK_END))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->read(rwops, test_buf, 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "1234567", 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 10, 100))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, -27, RW_SEEK_CUR))
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        RWOP_ERR_QUIT(rwops);
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    if (2 != rwops->read(rwops, test_buf, 10, 3))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "12345678901234567890", 20))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->write(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);   /* readonly mode */
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    rwops->close(rwops);
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/* test 3: same with w+ mode */
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    rwops = SDL_RWFromFile(FBASENAME1, "wb+");  /* write + read + truncation */
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->write(rwops, "1234567890", 10, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (10 != rwops->write(rwops, "1234567890", 1, 10))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->write(rwops, "1234567", 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);   /* we are in read/write mode */
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (20 != rwops->seek(rwops, -7, RW_SEEK_END))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->read(rwops, test_buf, 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "1234567", 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 10, 100))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, -27, RW_SEEK_CUR))
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        RWOP_ERR_QUIT(rwops);
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    if (2 != rwops->read(rwops, test_buf, 10, 3))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "12345678901234567890", 20))
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    SDL_Log("test3 OK\n");
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/* test 4: same in r+ mode */
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    rwops = SDL_RWFromFile(FBASENAME1, "rb+");  /* write + read + file must exists, no truncation */
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->write(rwops, "1234567890", 10, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (10 != rwops->write(rwops, "1234567890", 1, 10))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->write(rwops, "1234567", 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);   /* we are in read/write mode */
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (20 != rwops->seek(rwops, -7, RW_SEEK_END))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->read(rwops, test_buf, 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "1234567", 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 10, 100))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, -27, RW_SEEK_CUR))
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        RWOP_ERR_QUIT(rwops);
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    if (2 != rwops->read(rwops, test_buf, 10, 3))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "12345678901234567890", 20))
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    SDL_Log("test4 OK\n");
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/* test5 : append mode */
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    rwops = SDL_RWFromFile(FBASENAME1, "ab+");  /* write + read + append */
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    if (!rwops)
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->write(rwops, "1234567890", 10, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (10 != rwops->write(rwops, "1234567890", 1, 10))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->write(rwops, "1234567", 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (1 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (20 + 27 != rwops->seek(rwops, -7, RW_SEEK_END))
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        RWOP_ERR_QUIT(rwops);
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    if (7 != rwops->read(rwops, test_buf, 1, 7))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "1234567", 7))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 1, 1))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->read(rwops, test_buf, 10, 100))
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        RWOP_ERR_QUIT(rwops);
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    if (27 != rwops->seek(rwops, -27, RW_SEEK_CUR))
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        RWOP_ERR_QUIT(rwops);
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    if (0 != rwops->seek(rwops, 0L, RW_SEEK_SET))
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        RWOP_ERR_QUIT(rwops);
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    if (3 != rwops->read(rwops, test_buf, 10, 3))
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        RWOP_ERR_QUIT(rwops);
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    if (SDL_memcmp(test_buf, "123456789012345678901234567123", 30))
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        RWOP_ERR_QUIT(rwops);
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    rwops->close(rwops);
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    SDL_Log("test5 OK\n");
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    cleanup();
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    return 0;                   /* all ok */
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}