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testrwops.c
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testrwops.c
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/**
* Automated SDL_RWops test.
*
* Original code written by Edgar Simo "bobbens"
* Ported by Markus Kauppila (markus.kauppila@gmail.com)
*
* Released under Public Domain.
*/
#include <stdio.h>
#include <SDL/SDL.h>
#include "../../include/SDL_test.h"
const char* RWOPS_READ = "rwops_read";
const char* RWOPS_WRITE = "rwops_write";
static const char hello_world[] = "Hello World!";
static const char const_mem[] = "Hello World!";
/* Test cases */
static const TestCaseReference test1 =
(TestCaseReference){ "rwops_testParam", " Negative test for SDL_RWFromFile parameters", TEST_ENABLED, 0, 60 };
static const TestCaseReference test2 =
(TestCaseReference){ "rwops_testMem", "Tests opening from memory", TEST_ENABLED, 0, 60 };
static const TestCaseReference test3 =
(TestCaseReference){ "rwops_testConstMem", "Tests opening from (const) memory", TEST_ENABLED, 0, 60 };
static const TestCaseReference test4 =
(TestCaseReference){ "rwops_testFileRead", "Tests reading from a file", TEST_ENABLED, 0, 60 };
static const TestCaseReference test5 =
(TestCaseReference){ "rwops_testFileWrite", "Test writing to a file", TEST_ENABLED, 0, 60 };
static const TestCaseReference test6 =
(TestCaseReference){ "rwops_testFPRead", "Test reading from stdio", TEST_ENABLED, TEST_REQUIRES_STDIO, 60 };
static const TestCaseReference test7 =
(TestCaseReference){ "rwops_testFPWrite", "Test writing to stdio", TEST_ENABLED, TEST_REQUIRES_STDIO, 60 };
/* Test suite */
extern const TestCaseReference *testSuite[] = {
&test1, &test2, &test3, &test4, &test5, &test6, &test7, NULL
};
TestCaseReference **QueryTestSuite() {
return (TestCaseReference **)testSuite;
}
// Fixture
void
SetUp(void *arg)
{
FILE *handle = fopen(RWOPS_READ, "w");
AssertTrue(handle != NULL, "Creating file '%s' failed", RWOPS_READ);
fwrite(hello_world, 1, SDL_strlen(hello_world), handle);
fclose(handle);
}
void
TearDown(void *arg)
{
// Remove the created files
remove(RWOPS_READ);
remove(RWOPS_WRITE);
}
/**
* @brief Makes sure parameters work properly. Helper function
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RWseek
* http://wiki.libsdl.org/moin.cgi/SDL_RWread
*/
int _testGeneric( SDL_RWops *rw, int write )
{
char buf[sizeof(hello_world)];
int i;
/* Set to start. */
i = SDL_RWseek( rw, 0, RW_SEEK_SET );
AssertEquals(i, 0, "Seeking with SDL_RWseek (RW_SEEK_SET)");
/* Test write. */
i = SDL_RWwrite( rw, hello_world, sizeof(hello_world)-1, 1);
if (write) {
AssertEquals(i, 1, "Writing with SDL_RWwrite (failed to write)");
}
else {
AssertTrue(i <= 0, "Writing with SDL_RWwrite (wrote when shouldn't have): %d <= 0", i);
}
/* Test seek. */
i = SDL_RWseek( rw, 6, RW_SEEK_SET );
AssertEquals(i, 6, "Seeking with SDL_RWseek (RW_SEEK_SET)");
/* Test seek. */
i = SDL_RWseek( rw, 0, RW_SEEK_SET );
AssertEquals(i, 0, "Seeking with SDL_RWseek (RW_SEEK_SET)");
/* Test read. */
i = SDL_RWread( rw, buf, 1, sizeof(hello_world)-1 );
AssertEquals(i, sizeof(hello_world)-1, "Reading with SDL_RWread");
AssertEquals(SDL_memcmp( buf, hello_world, sizeof(hello_world)-1 ), 0, "Memory read does not match memory written");
/* More seek tests. */
i = SDL_RWseek( rw, -4, RW_SEEK_CUR );
AssertEquals(i, sizeof(hello_world)-5, "Seeking with SDL_RWseek (RW_SEEK_CUR))");
i = SDL_RWseek( rw, -1, RW_SEEK_END );
AssertEquals(i, sizeof(hello_world)-2, "Seeking with SDL_RWseek (RW_SEEK_END)");
}
/*!
* Negative test for SDL_RWFromFile parameters
*
* \sa http://wiki.libsdl.org/moin.cgi/SDL_RWFromFile
*
*/
void rwops_testParam (void)
{
SDL_RWops *rwops;
/* These should all fail. */
rwops = SDL_RWFromFile(NULL, NULL);
AssertTrue(rwops == NULL, "SDL_RWFromFile(NULL, NULL) worked");
rwops = SDL_RWFromFile(NULL, "ab+");
AssertTrue(rwops == NULL, "SDL_RWFromFile(NULL, NULL) worked");
rwops = SDL_RWFromFile(NULL, "sldfkjsldkfj");
AssertTrue(rwops == NULL, "SDL_RWFromFile(NULL, \"sldfkjsldkfj\") worked");
rwops = SDL_RWFromFile("something", "");
AssertTrue(rwops == NULL, "SDL_RWFromFile(\"something\", \"\") worked");
rwops = SDL_RWFromFile("something", NULL);
AssertTrue(rwops == NULL, "SDL_RWFromFile(\"something\", NULL) worked");
}
/**
* @brief Tests opening from memory.
*
* \sa http://wiki.libsdl.org/moin.cgi/SDL_RWFromMem
*/
void rwops_testMem (void)
{
char mem[sizeof(hello_world)];
SDL_RWops *rw;
/* Open. */
rw = SDL_RWFromMem( mem, sizeof(hello_world)-1 );
AssertTrue(rw != NULL, "Opening memory with SDL_RWFromMem");
/* Run generic tests. */
_testGeneric( rw, 1 );
/* Close. */
SDL_FreeRW( rw );
}
/**
* @brief Tests opening from memory.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RWFromConstMem
*/
void rwops_testConstMem (void)
{
SDL_RWops *rw;
/* Open. */
rw = SDL_RWFromConstMem( const_mem, sizeof(const_mem)-1 );
AssertTrue(rw != NULL, "Opening memory with SDL_RWFromConstMem");
/* Run generic tests. */
_testGeneric( rw, 0 );
/* Close. */
SDL_FreeRW( rw );
}
/**
* @brief Tests reading from memory.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RWFromFile
* http://wiki.libsdl.org/moin.cgi/SDL_FreeRW
*/
void
rwops_testFileRead(void)
{
SDL_RWops *rw;
/* Read test. */
rw = SDL_RWFromFile(RWOPS_READ, "r");
AssertTrue(rw != NULL, "Opening memory with SDL_RWFromFile RWOPS_READ");
_testGeneric( rw, 0 );
SDL_FreeRW( rw );
}
/**
* @brief Tests writing from memory.
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RWFromFile
* http://wiki.libsdl.org/moin.cgi/SDL_FreeRW
*/
void
rwops_testFileWrite(void)
{
SDL_RWops *rw;
/* Write test. */
rw = SDL_RWFromFile(RWOPS_WRITE, "w+");
AssertTrue(rw != NULL, "Opening memory with SDL_RWFromFile RWOPS_WRITE");
_testGeneric( rw, 1 );
SDL_FreeRW( rw );
}
/**
* @brief Tests reading from stdio
*
* \sa
* http://wiki.libsdl.org/moin.cgi/SDL_RWFromFP
* http://wiki.libsdl.org/moin.cgi/SDL_FreeRW
*
*/
void
rwops_testFPRead(void)
{
FILE *fp;
SDL_RWops *rw;
/* Run read tests. */
fp = fopen(RWOPS_READ, "r");
AssertTrue(fp != NULL, "Failed to open file %s,", RWOPS_READ);
rw = SDL_RWFromFP( fp, 1 );
AssertTrue(rw != NULL, "Opening memory with SDL_RWFromFP");
// TODO bail out if NULL
_testGeneric( rw, 0 );
SDL_FreeRW( rw );
fclose(fp);
}
void
rwops_testFPWrite(void)
{
FILE *fp;
SDL_RWops *rw;
/* Run write tests. */
fp = fopen(RWOPS_WRITE, "w+");
AssertTrue(fp != NULL, "Failed to open file %s", RWOPS_WRITE);
rw = SDL_RWFromFP( fp, 1 );
AssertTrue( rw != NULL, "Opening memory with SDL_RWFromFP");
_testGeneric( rw, 1 );
SDL_FreeRW( rw );
fclose(fp);
}