SDL/test/testautomation_rwops.c

/**
 * Automated SDL_RWops test.
 *
 * Original code written by Edgar Simo "bobbens"
 * Ported by Markus Kauppila (markus.kauppila@gmail.com)
 * Updated and extended for SDL_test by aschiffler at ferzkopp dot net
 *
 * Released under Public Domain.
 */

/* quiet windows compiler warnings */
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif

#include <stdio.h>

#include <SDL3/SDL.h>
#include <SDL3/SDL_test.h>
#include "testautomation_suites.h"

/* ================= Test Case Implementation ================== */

static const char *RWopsReadTestFilename = "rwops_read";
static const char *RWopsWriteTestFilename = "rwops_write";
static const char *RWopsAlphabetFilename = "rwops_alphabet";

static const char RWopsHelloWorldTestString[] = "Hello World!";
static const char RWopsHelloWorldCompString[] = "Hello World!";
static const char RWopsAlphabetString[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

/* Fixture */

static void RWopsSetUp(void *arg)
{
    size_t fileLen;
    FILE *handle;
    size_t writtenLen;
    int result;

    /* Clean up from previous runs (if any); ignore errors */
    (void)remove(RWopsReadTestFilename);
    (void)remove(RWopsWriteTestFilename);
    (void)remove(RWopsAlphabetFilename);

    /* Create a test file */
    handle = fopen(RWopsReadTestFilename, "w");
    SDLTest_AssertCheck(handle != NULL, "Verify creation of file '%s' returned non NULL handle", RWopsReadTestFilename);
    if (handle == NULL) {
        return;
    }

    /* Write some known text into it */
    fileLen = SDL_strlen(RWopsHelloWorldTestString);
    writtenLen = fwrite(RWopsHelloWorldTestString, 1, fileLen, handle);
    SDLTest_AssertCheck(fileLen == writtenLen, "Verify number of written bytes, expected %i, got %i", (int)fileLen, (int)writtenLen);
    result = fclose(handle);
    SDLTest_AssertCheck(result == 0, "Verify result from fclose, expected 0, got %i", result);

    /* Create a second test file */
    handle = fopen(RWopsAlphabetFilename, "w");
    SDLTest_AssertCheck(handle != NULL, "Verify creation of file '%s' returned non NULL handle", RWopsAlphabetFilename);
    if (handle == NULL) {
        return;
    }

    /* Write alphabet text into it */
    fileLen = SDL_strlen(RWopsAlphabetString);
    writtenLen = fwrite(RWopsAlphabetString, 1, fileLen, handle);
    SDLTest_AssertCheck(fileLen == writtenLen, "Verify number of written bytes, expected %i, got %i", (int)fileLen, (int)writtenLen);
    result = fclose(handle);
    SDLTest_AssertCheck(result == 0, "Verify result from fclose, expected 0, got %i", result);

    SDLTest_AssertPass("Creation of test file completed");
}

static void RWopsTearDown(void *arg)
{
    int result;

    /* Remove the created files to clean up; ignore errors for write filename */
    result = remove(RWopsReadTestFilename);
    SDLTest_AssertCheck(result == 0, "Verify result from remove(%s), expected 0, got %i", RWopsReadTestFilename, result);
    (void)remove(RWopsWriteTestFilename);
    result = remove(RWopsAlphabetFilename);
    SDLTest_AssertCheck(result == 0, "Verify result from remove(%s), expected 0, got %i", RWopsAlphabetFilename, result);

    SDLTest_AssertPass("Cleanup of test files completed");
}

/**
 * Makes sure parameters work properly. Local helper function.
 *
 * \sa SDL_RWseek
 * \sa SDL_RWread
 */
static void testGenericRWopsValidations(SDL_RWops *rw, SDL_bool write)
{
    char buf[sizeof(RWopsHelloWorldTestString)];
    Sint64 i;
    size_t s;
    int seekPos = SDLTest_RandomIntegerInRange(4, 8);

    /* Clear buffer */
    SDL_zeroa(buf);

    /* Set to start. */
    i = SDL_RWseek(rw, 0, SDL_RW_SEEK_SET);
    SDLTest_AssertPass("Call to SDL_RWseek succeeded");
    SDLTest_AssertCheck(i == (Sint64)0, "Verify seek to 0 with SDL_RWseek (SDL_RW_SEEK_SET), expected 0, got %" SDL_PRIs64, i);

    /* Test write */
    s = SDL_RWwrite(rw, RWopsHelloWorldTestString, sizeof(RWopsHelloWorldTestString) - 1);
    SDLTest_AssertPass("Call to SDL_RWwrite succeeded");
    if (write) {
        SDLTest_AssertCheck(s == sizeof(RWopsHelloWorldTestString) - 1, "Verify result of writing with SDL_RWwrite, expected %i, got %i", (int)sizeof(RWopsHelloWorldTestString) - 1, (int)s);
    } else {
        SDLTest_AssertCheck(s == 0, "Verify result of writing with SDL_RWwrite, expected: 0, got %i", (int)s);
    }

    /* Test seek to random position */
    i = SDL_RWseek(rw, seekPos, SDL_RW_SEEK_SET);
    SDLTest_AssertPass("Call to SDL_RWseek succeeded");
    SDLTest_AssertCheck(i == (Sint64)seekPos, "Verify seek to %i with SDL_RWseek (SDL_RW_SEEK_SET), expected %i, got %" SDL_PRIs64, seekPos, seekPos, i);

    /* Test seek back to start */
    i = SDL_RWseek(rw, 0, SDL_RW_SEEK_SET);
    SDLTest_AssertPass("Call to SDL_RWseek succeeded");
    SDLTest_AssertCheck(i == (Sint64)0, "Verify seek to 0 with SDL_RWseek (SDL_RW_SEEK_SET), expected 0, got %" SDL_PRIs64, i);

    /* Test read */
    s = SDL_RWread(rw, buf, sizeof(RWopsHelloWorldTestString) - 1);
    SDLTest_AssertPass("Call to SDL_RWread succeeded");
    SDLTest_AssertCheck(
        s == (sizeof(RWopsHelloWorldTestString) - 1),
        "Verify result from SDL_RWread, expected %i, got %i",
        (int)(sizeof(RWopsHelloWorldTestString) - 1),
        (int)s);
    SDLTest_AssertCheck(
        SDL_memcmp(buf, RWopsHelloWorldTestString, sizeof(RWopsHelloWorldTestString) - 1) == 0,
        "Verify read bytes match expected string, expected '%s', got '%s'", RWopsHelloWorldTestString, buf);

    /* Test seek back to start */
    i = SDL_RWseek(rw, 0, SDL_RW_SEEK_SET);
    SDLTest_AssertPass("Call to SDL_RWseek succeeded");
    SDLTest_AssertCheck(i == (Sint64)0, "Verify seek to 0 with SDL_RWseek (SDL_RW_SEEK_SET), expected 0, got %" SDL_PRIs64, i);

    /* Test printf */
    s = SDL_RWprintf(rw, "%s", RWopsHelloWorldTestString);
    SDLTest_AssertPass("Call to SDL_RWprintf succeeded");
    if (write) {
        SDLTest_AssertCheck(s == sizeof(RWopsHelloWorldTestString) - 1, "Verify result of writing with SDL_RWprintf, expected %i, got %i", (int)sizeof(RWopsHelloWorldTestString) - 1, (int)s);
    } else {
        SDLTest_AssertCheck(s == 0, "Verify result of writing with SDL_RWwrite, expected: 0, got %i", (int)s);
    }

    /* Test seek back to start */
    i = SDL_RWseek(rw, 0, SDL_RW_SEEK_SET);
    SDLTest_AssertPass("Call to SDL_RWseek succeeded");
    SDLTest_AssertCheck(i == (Sint64)0, "Verify seek to 0 with SDL_RWseek (SDL_RW_SEEK_SET), expected 0, got %" SDL_PRIs64, i);

    /* Test read */
    s = SDL_RWread(rw, buf, sizeof(RWopsHelloWorldTestString) - 1);
    SDLTest_AssertPass("Call to SDL_RWread succeeded");
    SDLTest_AssertCheck(
        s == (sizeof(RWopsHelloWorldTestString) - 1),
        "Verify result from SDL_RWread, expected %i, got %i",
        (int)(sizeof(RWopsHelloWorldTestString) - 1),
        (int)s);
    SDLTest_AssertCheck(
        SDL_memcmp(buf, RWopsHelloWorldTestString, sizeof(RWopsHelloWorldTestString) - 1) == 0,
        "Verify read bytes match expected string, expected '%s', got '%s'", RWopsHelloWorldTestString, buf);

    /* More seek tests. */
    i = SDL_RWseek(rw, -4, SDL_RW_SEEK_CUR);
    SDLTest_AssertPass("Call to SDL_RWseek(...,-4,SDL_RW_SEEK_CUR) succeeded");
    SDLTest_AssertCheck(
        i == (Sint64)(sizeof(RWopsHelloWorldTestString) - 5),
        "Verify seek to -4 with SDL_RWseek (SDL_RW_SEEK_CUR), expected %i, got %i",
        (int)(sizeof(RWopsHelloWorldTestString) - 5),
        (int)i);

    i = SDL_RWseek(rw, -1, SDL_RW_SEEK_END);
    SDLTest_AssertPass("Call to SDL_RWseek(...,-1,SDL_RW_SEEK_END) succeeded");
    SDLTest_AssertCheck(
        i == (Sint64)(sizeof(RWopsHelloWorldTestString) - 2),
        "Verify seek to -1 with SDL_RWseek (SDL_RW_SEEK_END), expected %i, got %i",
        (int)(sizeof(RWopsHelloWorldTestString) - 2),
        (int)i);

    /* Invalid whence seek */
    i = SDL_RWseek(rw, 0, 999);
    SDLTest_AssertPass("Call to SDL_RWseek(...,0,invalid_whence) succeeded");
    SDLTest_AssertCheck(
        i == (Sint64)(-1),
        "Verify seek with SDL_RWseek (invalid_whence); expected: -1, got %i",
        (int)i);
}

/**
 * Negative test for SDL_RWFromFile parameters
 *
 * \sa SDL_RWFromFile
 *
 */
static int rwops_testParamNegative(void *arg)
{
    SDL_RWops *rwops;

    /* These should all fail. */
    rwops = SDL_RWFromFile(NULL, NULL);
    SDLTest_AssertPass("Call to SDL_RWFromFile(NULL, NULL) succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromFile(NULL, NULL) returns NULL");

    rwops = SDL_RWFromFile(NULL, "ab+");
    SDLTest_AssertPass("Call to SDL_RWFromFile(NULL, \"ab+\") succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromFile(NULL, \"ab+\") returns NULL");

    rwops = SDL_RWFromFile(NULL, "sldfkjsldkfj");
    SDLTest_AssertPass("Call to SDL_RWFromFile(NULL, \"sldfkjsldkfj\") succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromFile(NULL, \"sldfkjsldkfj\") returns NULL");

    rwops = SDL_RWFromFile("something", "");
    SDLTest_AssertPass("Call to SDL_RWFromFile(\"something\", \"\") succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromFile(\"something\", \"\") returns NULL");

    rwops = SDL_RWFromFile("something", NULL);
    SDLTest_AssertPass("Call to SDL_RWFromFile(\"something\", NULL) succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromFile(\"something\", NULL) returns NULL");

    rwops = SDL_RWFromMem(NULL, 10);
    SDLTest_AssertPass("Call to SDL_RWFromMem(NULL, 10) succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromMem(NULL, 10) returns NULL");

    rwops = SDL_RWFromMem((void *)RWopsAlphabetString, 0);
    SDLTest_AssertPass("Call to SDL_RWFromMem(data, 0) succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromMem(data, 0) returns NULL");

    rwops = SDL_RWFromConstMem((const void *)RWopsAlphabetString, 0);
    SDLTest_AssertPass("Call to SDL_RWFromConstMem(data, 0) succeeded");
    SDLTest_AssertCheck(rwops == NULL, "Verify SDL_RWFromConstMem(data, 0) returns NULL");

    return TEST_COMPLETED;
}

/**
 * Tests opening from memory.
 *
 * \sa SDL_RWFromMem
 * \sa SDL_RWClose
 */
static int rwops_testMem(void *arg)
{
    char mem[sizeof(RWopsHelloWorldTestString)];
    SDL_RWops *rw;
    int result;

    /* Clear buffer */
    SDL_zeroa(mem);

    /* Open */
    rw = SDL_RWFromMem(mem, sizeof(RWopsHelloWorldTestString) - 1);
    SDLTest_AssertPass("Call to SDL_RWFromMem() succeeded");
    SDLTest_AssertCheck(rw != NULL, "Verify opening memory with SDL_RWFromMem does not return NULL");

    /* Bail out if NULL */
    if (rw == NULL) {
        return TEST_ABORTED;
    }

    /* Check type */
    SDLTest_AssertCheck(rw->type == SDL_RWOPS_MEMORY, "Verify RWops type is SDL_RWOPS_MEMORY; expected: %d, got: %" SDL_PRIu32, SDL_RWOPS_MEMORY, rw->type);

    /* Run generic tests */
    testGenericRWopsValidations(rw, SDL_TRUE);

    /* Close */
    result = SDL_RWclose(rw);
    SDLTest_AssertPass("Call to SDL_RWclose() succeeded");
    SDLTest_AssertCheck(result == 0, "Verify result value is 0; got: %d", result);

    return TEST_COMPLETED;
}

/**
 * Tests opening from memory.
 *
 * \sa SDL_RWFromConstMem
 * \sa SDL_RWClose
 */
static int rwops_testConstMem(void *arg)
{
    SDL_RWops *rw;
    int result;

    /* Open handle */
    rw = SDL_RWFromConstMem(RWopsHelloWorldCompString, sizeof(RWopsHelloWorldCompString) - 1);
    SDLTest_AssertPass("Call to SDL_RWFromConstMem() succeeded");
    SDLTest_AssertCheck(rw != NULL, "Verify opening memory with SDL_RWFromConstMem does not return NULL");

    /* Bail out if NULL */
    if (rw == NULL) {
        return TEST_ABORTED;
    }

    /* Check type */
    SDLTest_AssertCheck(rw->type == SDL_RWOPS_MEMORY_RO, "Verify RWops type is SDL_RWOPS_MEMORY_RO; expected: %d, got: %" SDL_PRIu32, SDL_RWOPS_MEMORY_RO, rw->type);

    /* Run generic tests */
    testGenericRWopsValidations(rw, SDL_FALSE);

    /* Close handle */
    result = SDL_RWclose(rw);
    SDLTest_AssertPass("Call to SDL_RWclose() succeeded");
    SDLTest_AssertCheck(result == 0, "Verify result value is 0; got: %d", result);

    return TEST_COMPLETED;
}

/**
 * Tests reading from file.
 *
 * \sa SDL_RWFromFile
 * \sa SDL_RWClose
 */
static int rwops_testFileRead(void *arg)
{
    SDL_RWops *rw;
    int result;

    /* Read test. */
    rw = SDL_RWFromFile(RWopsReadTestFilename, "r");
    SDLTest_AssertPass("Call to SDL_RWFromFile(..,\"r\") succeeded");
    SDLTest_AssertCheck(rw != NULL, "Verify opening file with SDL_RWFromFile in read mode does not return NULL");

    /* Bail out if NULL */
    if (rw == NULL) {
        return TEST_ABORTED;
    }

    /* Check type */
#ifdef SDL_PLATFORM_ANDROID
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_STDFILE || rw->type == SDL_RWOPS_JNIFILE,
        "Verify RWops type is SDL_RWOPS_STDFILE or SDL_RWOPS_JNIFILE; expected: %d|%d, got: %d", SDL_RWOPS_STDFILE, SDL_RWOPS_JNIFILE, rw->type);
#elif defined(SDL_PLATFORM_WIN32)
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_WINFILE,
        "Verify RWops type is SDL_RWOPS_WINFILE; expected: %d, got: %d", SDL_RWOPS_WINFILE, rw->type);
#else
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_STDFILE,
        "Verify RWops type is SDL_RWOPS_STDFILE; expected: %d, got: %" SDL_PRIu32, SDL_RWOPS_STDFILE, rw->type);
#endif

    /* Run generic tests */
    testGenericRWopsValidations(rw, SDL_FALSE);

    /* Close handle */
    result = SDL_RWclose(rw);
    SDLTest_AssertPass("Call to SDL_RWclose() succeeded");
    SDLTest_AssertCheck(result == 0, "Verify result value is 0; got: %d", result);

    return TEST_COMPLETED;
}

/**
 * Tests writing from file.
 *
 * \sa SDL_RWFromFile
 * \sa SDL_RWClose
 */
static int rwops_testFileWrite(void *arg)
{
    SDL_RWops *rw;
    int result;

    /* Write test. */
    rw = SDL_RWFromFile(RWopsWriteTestFilename, "w+");
    SDLTest_AssertPass("Call to SDL_RWFromFile(..,\"w+\") succeeded");
    SDLTest_AssertCheck(rw != NULL, "Verify opening file with SDL_RWFromFile in write mode does not return NULL");

    /* Bail out if NULL */
    if (rw == NULL) {
        return TEST_ABORTED;
    }

    /* Check type */
#ifdef SDL_PLATFORM_ANDROID
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_STDFILE || rw->type == SDL_RWOPS_JNIFILE,
        "Verify RWops type is SDL_RWOPS_STDFILE or SDL_RWOPS_JNIFILE; expected: %d|%d, got: %d", SDL_RWOPS_STDFILE, SDL_RWOPS_JNIFILE, rw->type);
#elif defined(SDL_PLATFORM_WIN32)
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_WINFILE,
        "Verify RWops type is SDL_RWOPS_WINFILE; expected: %d, got: %d", SDL_RWOPS_WINFILE, rw->type);
#else
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_STDFILE,
        "Verify RWops type is SDL_RWOPS_STDFILE; expected: %d, got: %" SDL_PRIu32, SDL_RWOPS_STDFILE, rw->type);
#endif

    /* Run generic tests */
    testGenericRWopsValidations(rw, SDL_TRUE);

    /* Close handle */
    result = SDL_RWclose(rw);
    SDLTest_AssertPass("Call to SDL_RWclose() succeeded");
    SDLTest_AssertCheck(result == 0, "Verify result value is 0; got: %d", result);

    return TEST_COMPLETED;
}

/**
 * Tests alloc and free RW context.
 *
 * \sa SDL_CreateRW
 * \sa SDL_DestroyRW
 */
static int rwops_testAllocFree(void *arg)
{
    /* Allocate context */
    SDL_RWops *rw = SDL_CreateRW();
    SDLTest_AssertPass("Call to SDL_CreateRW() succeeded");
    SDLTest_AssertCheck(rw != NULL, "Validate result from SDL_CreateRW() is not NULL");
    if (rw == NULL) {
        return TEST_ABORTED;
    }

    /* Check type */
    SDLTest_AssertCheck(
        rw->type == SDL_RWOPS_UNKNOWN,
        "Verify RWops type is SDL_RWOPS_UNKNOWN; expected: %d, got: %" SDL_PRIu32, SDL_RWOPS_UNKNOWN, rw->type);

    /* Free context again */
    SDL_DestroyRW(rw);
    SDLTest_AssertPass("Call to SDL_DestroyRW() succeeded");

    return TEST_COMPLETED;
}

/**
 * Compare memory and file reads
 *
 * \sa SDL_RWFromMem
 * \sa SDL_RWFromFile
 */
static int rwops_testCompareRWFromMemWithRWFromFile(void *arg)
{
    int slen = 26;
    char buffer_file[27];
    char buffer_mem[27];
    size_t rv_file;
    size_t rv_mem;
    Uint64 sv_file;
    Uint64 sv_mem;
    SDL_RWops *rwops_file;
    SDL_RWops *rwops_mem;
    int size;
    int result;

    for (size = 5; size < 10; size++) {
        /* Terminate buffer */
        buffer_file[slen] = 0;
        buffer_mem[slen] = 0;

        /* Read/seek from memory */
        rwops_mem = SDL_RWFromMem((void *)RWopsAlphabetString, slen);
        SDLTest_AssertPass("Call to SDL_RWFromMem()");
        rv_mem = SDL_RWread(rwops_mem, buffer_mem, size * 6);
        SDLTest_AssertPass("Call to SDL_RWread(mem, size=%d)", size * 6);
        sv_mem = SDL_RWseek(rwops_mem, 0, SEEK_END);
        SDLTest_AssertPass("Call to SDL_RWseek(mem,SEEK_END)");
        result = SDL_RWclose(rwops_mem);
        SDLTest_AssertPass("Call to SDL_RWclose(mem)");
        SDLTest_AssertCheck(result == 0, "Verify result value is 0; got: %d", result);

        /* Read/see from file */
        rwops_file = SDL_RWFromFile(RWopsAlphabetFilename, "r");
        SDLTest_AssertPass("Call to SDL_RWFromFile()");
        rv_file = SDL_RWread(rwops_file, buffer_file, size * 6);
        SDLTest_AssertPass("Call to SDL_RWread(file, size=%d)", size * 6);
        sv_file = SDL_RWseek(rwops_file, 0, SEEK_END);
        SDLTest_AssertPass("Call to SDL_RWseek(file,SEEK_END)");
        result = SDL_RWclose(rwops_file);
        SDLTest_AssertPass("Call to SDL_RWclose(file)");
        SDLTest_AssertCheck(result == 0, "Verify result value is 0; got: %d", result);

        /* Compare */
        SDLTest_AssertCheck(rv_mem == rv_file, "Verify returned read blocks matches for mem and file reads; got: rv_mem=%d rv_file=%d", (int)rv_mem, (int)rv_file);
        SDLTest_AssertCheck(sv_mem == sv_file, "Verify SEEK_END position matches for mem and file seeks; got: sv_mem=%d sv_file=%d", (int)sv_mem, (int)sv_file);
        SDLTest_AssertCheck(buffer_mem[slen] == 0, "Verify mem buffer termination; expected: 0, got: %d", buffer_mem[slen]);
        SDLTest_AssertCheck(buffer_file[slen] == 0, "Verify file buffer termination; expected: 0, got: %d", buffer_file[slen]);
        SDLTest_AssertCheck(
            SDL_strncmp(buffer_mem, RWopsAlphabetString, slen) == 0,
            "Verify mem buffer contain alphabet string; expected: %s, got: %s", RWopsAlphabetString, buffer_mem);
        SDLTest_AssertCheck(
            SDL_strncmp(buffer_file, RWopsAlphabetString, slen) == 0,
            "Verify file buffer contain alphabet string; expected: %s, got: %s", RWopsAlphabetString, buffer_file);
    }

    return TEST_COMPLETED;
}

/**
 * Tests writing and reading from file using endian aware functions.
 *
 * \sa SDL_RWFromFile
 * \sa SDL_RWClose
 * \sa SDL_ReadU16BE
 * \sa SDL_WriteU16BE
 */
static int rwops_testFileWriteReadEndian(void *arg)
{
    SDL_RWops *rw;
    Sint64 result;
    int mode;
    Uint16 BE16value;
    Uint32 BE32value;
    Uint64 BE64value;
    Uint16 LE16value;
    Uint32 LE32value;
    Uint64 LE64value;
    Uint16 BE16test;
    Uint32 BE32test;
    Uint64 BE64test;
    Uint16 LE16test;
    Uint32 LE32test;
    Uint64 LE64test;
    SDL_bool bresult;
    int cresult;

    for (mode = 0; mode < 3; mode++) {

        /* Create test data */
        switch (mode) {
        default:
        case 0:
            SDLTest_Log("All 0 values");
            BE16value = 0;
            BE32value = 0;
            BE64value = 0;
            LE16value = 0;
            LE32value = 0;
            LE64value = 0;
            break;
        case 1:
            SDLTest_Log("All 1 values");
            BE16value = 1;
            BE32value = 1;
            BE64value = 1;
            LE16value = 1;
            LE32value = 1;
            LE64value = 1;
            break;
        case 2:
            SDLTest_Log("Random values");
            BE16value = SDLTest_RandomUint16();
            BE32value = SDLTest_RandomUint32();
            BE64value = SDLTest_RandomUint64();
            LE16value = SDLTest_RandomUint16();
            LE32value = SDLTest_RandomUint32();
            LE64value = SDLTest_RandomUint64();
            break;
        }

        /* Write test. */
        rw = SDL_RWFromFile(RWopsWriteTestFilename, "w+");
        SDLTest_AssertPass("Call to SDL_RWFromFile(..,\"w+\")");
        SDLTest_AssertCheck(rw != NULL, "Verify opening file with SDL_RWFromFile in write mode does not return NULL");

        /* Bail out if NULL */
        if (rw == NULL) {
            return TEST_ABORTED;
        }

        /* Write test data */
        bresult = SDL_WriteU16BE(rw, BE16value);
        SDLTest_AssertPass("Call to SDL_WriteU16BE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object written, expected: SDL_TRUE, got: SDL_FALSE");
        bresult = SDL_WriteU32BE(rw, BE32value);
        SDLTest_AssertPass("Call to SDL_WriteU32BE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object written, expected: SDL_TRUE, got: SDL_FALSE");
        bresult = SDL_WriteU64BE(rw, BE64value);
        SDLTest_AssertPass("Call to SDL_WriteU64BE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object written, expected: SDL_TRUE, got: SDL_FALSE");
        bresult = SDL_WriteU16LE(rw, LE16value);
        SDLTest_AssertPass("Call to SDL_WriteU16LE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object written, expected: SDL_TRUE, got: SDL_FALSE");
        bresult = SDL_WriteU32LE(rw, LE32value);
        SDLTest_AssertPass("Call to SDL_WriteU32LE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object written, expected: SDL_TRUE, got: SDL_FALSE");
        bresult = SDL_WriteU64LE(rw, LE64value);
        SDLTest_AssertPass("Call to SDL_WriteU64LE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object written, expected: SDL_TRUE, got: SDL_FALSE");

        /* Test seek to start */
        result = SDL_RWseek(rw, 0, SDL_RW_SEEK_SET);
        SDLTest_AssertPass("Call to SDL_RWseek succeeded");
        SDLTest_AssertCheck(result == 0, "Verify result from position 0 with SDL_RWseek, expected 0, got %i", (int)result);

        /* Read test data */
        bresult = SDL_ReadU16BE(rw, &BE16test);
        SDLTest_AssertPass("Call to SDL_ReadU16BE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object read, expected: SDL_TRUE, got: SDL_FALSE");
        SDLTest_AssertCheck(BE16test == BE16value, "Validate object read from SDL_ReadU16BE, expected: %hu, got: %hu", BE16value, BE16test);
        bresult = SDL_ReadU32BE(rw, &BE32test);
        SDLTest_AssertPass("Call to SDL_ReadU32BE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object read, expected: SDL_TRUE, got: SDL_FALSE");
        SDLTest_AssertCheck(BE32test == BE32value, "Validate object read from SDL_ReadU32BE, expected: %" SDL_PRIu32 ", got: %" SDL_PRIu32, BE32value, BE32test);
        bresult = SDL_ReadU64BE(rw, &BE64test);
        SDLTest_AssertPass("Call to SDL_ReadU64BE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object read, expected: SDL_TRUE, got: SDL_FALSE");
        SDLTest_AssertCheck(BE64test == BE64value, "Validate object read from SDL_ReadU64BE, expected: %" SDL_PRIu64 ", got: %" SDL_PRIu64, BE64value, BE64test);
        bresult = SDL_ReadU16LE(rw, &LE16test);
        SDLTest_AssertPass("Call to SDL_ReadU16LE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object read, expected: SDL_TRUE, got: SDL_FALSE");
        SDLTest_AssertCheck(LE16test == LE16value, "Validate object read from SDL_ReadU16LE, expected: %hu, got: %hu", LE16value, LE16test);
        bresult = SDL_ReadU32LE(rw, &LE32test);
        SDLTest_AssertPass("Call to SDL_ReadU32LE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object read, expected: SDL_TRUE, got: SDL_FALSE");
        SDLTest_AssertCheck(LE32test == LE32value, "Validate object read from SDL_ReadU32LE, expected: %" SDL_PRIu32 ", got: %" SDL_PRIu32, LE32value, LE32test);
        bresult = SDL_ReadU64LE(rw, &LE64test);
        SDLTest_AssertPass("Call to SDL_ReadU64LE()");
        SDLTest_AssertCheck(bresult == SDL_TRUE, "Validate object read, expected: SDL_TRUE, got: SDL_FALSE");
        SDLTest_AssertCheck(LE64test == LE64value, "Validate object read from SDL_ReadU64LE, expected: %" SDL_PRIu64 ", got: %" SDL_PRIu64, LE64value, LE64test);

        /* Close handle */
        cresult = SDL_RWclose(rw);
        SDLTest_AssertPass("Call to SDL_RWclose() succeeded");
        SDLTest_AssertCheck(cresult == 0, "Verify result value is 0; got: %d", cresult);
    }

    return TEST_COMPLETED;
}

/* ================= Test References ================== */

/* RWops test cases */
static const SDLTest_TestCaseReference rwopsTest1 = {
    (SDLTest_TestCaseFp)rwops_testParamNegative, "rwops_testParamNegative", "Negative test for SDL_RWFromFile parameters", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest2 = {
    (SDLTest_TestCaseFp)rwops_testMem, "rwops_testMem", "Tests opening from memory", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest3 = {
    (SDLTest_TestCaseFp)rwops_testConstMem, "rwops_testConstMem", "Tests opening from (const) memory", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest4 = {
    (SDLTest_TestCaseFp)rwops_testFileRead, "rwops_testFileRead", "Tests reading from a file", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest5 = {
    (SDLTest_TestCaseFp)rwops_testFileWrite, "rwops_testFileWrite", "Test writing to a file", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest6 = {
    (SDLTest_TestCaseFp)rwops_testAllocFree, "rwops_testAllocFree", "Test alloc and free of RW context", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest7 = {
    (SDLTest_TestCaseFp)rwops_testFileWriteReadEndian, "rwops_testFileWriteReadEndian", "Test writing and reading via the Endian aware functions", TEST_ENABLED
};

static const SDLTest_TestCaseReference rwopsTest8 = {
    (SDLTest_TestCaseFp)rwops_testCompareRWFromMemWithRWFromFile, "rwops_testCompareRWFromMemWithRWFromFile", "Compare RWFromMem and RWFromFile RWops for read and seek", TEST_ENABLED
};

/* Sequence of RWops test cases */
static const SDLTest_TestCaseReference *rwopsTests[] = {
    &rwopsTest1, &rwopsTest2, &rwopsTest3, &rwopsTest4, &rwopsTest5, &rwopsTest6,
    &rwopsTest7, &rwopsTest8, NULL
};

/* RWops test suite (global) */
SDLTest_TestSuiteReference rwopsTestSuite = {
    "RWops",
    RWopsSetUp,
    rwopsTests,
    RWopsTearDown
};