173 lines
4.6 KiB
C
173 lines
4.6 KiB
C
/**
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* GUID test suite
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*/
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_test.h>
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#include "testautomation_suites.h"
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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/* ================= Test Case Implementation ================== */
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/* Helper functions */
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#define NUM_TEST_GUIDS 5
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#ifndef UINT64_C
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#ifdef _MSC_VER
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#define UINT64_C(x) x##ui64
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#elif defined(_LP64)
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#define UINT64_C(x) x##UL
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#else
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#define UINT64_C(x) x##ULL
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#endif
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#endif
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static struct
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{
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char *str;
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Uint64 upper, lower;
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} test_guids[NUM_TEST_GUIDS] = {
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{ "0000000000000000"
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"ffffffffffffffff",
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UINT64_C(0x0000000000000000), UINT64_C(0xffffffffffffffff) },
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{ "0011223344556677"
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"8091a2b3c4d5e6f0",
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UINT64_C(0x0011223344556677), UINT64_C(0x8091a2b3c4d5e6f0) },
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{ "a011223344556677"
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"8091a2b3c4d5e6f0",
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UINT64_C(0xa011223344556677), UINT64_C(0x8091a2b3c4d5e6f0) },
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{ "a011223344556677"
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"8091a2b3c4d5e6f1",
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UINT64_C(0xa011223344556677), UINT64_C(0x8091a2b3c4d5e6f1) },
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{ "a011223344556677"
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"8191a2b3c4d5e6f0",
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UINT64_C(0xa011223344556677), UINT64_C(0x8191a2b3c4d5e6f0) },
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};
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static void
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upper_lower_to_bytestring(Uint8 *out, Uint64 upper, Uint64 lower)
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{
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Uint64 values[2];
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int i, k;
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values[0] = upper;
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values[1] = lower;
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for (i = 0; i < 2; ++i) {
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Uint64 v = values[i];
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for (k = 0; k < 8; ++k) {
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*out++ = v >> 56;
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v <<= 8;
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}
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}
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}
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/* Test case functions */
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/**
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* Check String-to-GUID conversion
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*
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* \sa SDL_GUIDFromString
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*/
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static int
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TestGuidFromString(void *arg)
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{
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int i;
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SDLTest_AssertPass("Call to SDL_GUIDFromString");
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for (i = 0; i < NUM_TEST_GUIDS; ++i) {
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Uint8 expected[16];
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SDL_GUID guid;
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upper_lower_to_bytestring(expected,
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test_guids[i].upper, test_guids[i].lower);
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guid = SDL_GUIDFromString(test_guids[i].str);
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SDLTest_AssertCheck(SDL_memcmp(expected, guid.data, 16) == 0, "GUID from string, GUID was: '%s'", test_guids[i].str);
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}
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return TEST_COMPLETED;
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}
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/**
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* Check GUID-to-String conversion
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*
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* \sa SDL_GUIDToString
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*/
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static int
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TestGuidToString(void *arg)
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{
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int i;
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SDLTest_AssertPass("Call to SDL_GUIDToString");
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for (i = 0; i < NUM_TEST_GUIDS; ++i) {
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const int guid_str_offset = 4;
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char guid_str_buf[64];
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char *guid_str = guid_str_buf + guid_str_offset;
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SDL_GUID guid;
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int size;
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upper_lower_to_bytestring(guid.data,
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test_guids[i].upper, test_guids[i].lower);
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/* Serialise to limited-length buffers */
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for (size = 0; size <= 36; ++size) {
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const Uint8 fill_char = (Uint8)(size + 0xa0);
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Uint32 expected_prefix;
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Uint32 actual_prefix;
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int written_size;
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SDL_memset(guid_str_buf, fill_char, sizeof(guid_str_buf));
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SDL_GUIDToString(guid, guid_str, size);
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/* Check bytes before guid_str_buf */
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expected_prefix = fill_char | (fill_char << 8) | (fill_char << 16) | (((Uint32)fill_char) << 24);
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SDL_memcpy(&actual_prefix, guid_str_buf, 4);
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SDLTest_AssertCheck(expected_prefix == actual_prefix, "String buffer memory before output untouched, expected: %" SDL_PRIu32 ", got: %" SDL_PRIu32 ", at size=%d", expected_prefix, actual_prefix, size);
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/* Check that we did not overwrite too much */
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written_size = 0;
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while ((guid_str[written_size] & 0xff) != fill_char && written_size < 256) {
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++written_size;
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}
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SDLTest_AssertCheck(written_size <= size, "Output length is within expected bounds, with length %d: wrote %d of %d permitted bytes", size, written_size, size);
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if (size >= 33) {
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SDLTest_AssertCheck(SDL_strcmp(guid_str, test_guids[i].str) == 0, "GUID string equality, from string: %s", test_guids[i].str);
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}
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}
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}
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return TEST_COMPLETED;
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}
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/* ================= Test References ================== */
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/* GUID routine test cases */
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static const SDLTest_TestCaseReference guidTest1 = {
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(SDLTest_TestCaseFp)TestGuidFromString, "TestGuidFromString", "Call to SDL_GUIDFromString", TEST_ENABLED
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};
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static const SDLTest_TestCaseReference guidTest2 = {
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(SDLTest_TestCaseFp)TestGuidToString, "TestGuidToString", "Call to SDL_GUIDToString", TEST_ENABLED
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};
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/* Sequence of GUID routine test cases */
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static const SDLTest_TestCaseReference *guidTests[] = {
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&guidTest1,
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&guidTest2,
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NULL
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};
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/* GUID routine test suite (global) */
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SDLTest_TestSuiteReference guidTestSuite = {
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"GUID",
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NULL,
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guidTests,
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NULL
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};
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