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Added SDL_ResetHint() to reset a hint to the default value

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Resolves question of how to clear an override hint raised by @pionere in https://github.com/libsdl-org/SDL/pull/5309
This commit is contained in:
Sam Lantinga committed 2022-08-10 08:01:24 -07:00
1 parent 3119d58ff5
commit d4192850c1
7 files changed
+108 -2
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test/testautomation_hints.c
+50 -2
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@@ -98,8 +98,9 @@ hints_getHint(void *arg)
int
hints_setHint(void *arg)
{
const char *testHint = "SDL_AUTOMATED_TEST_HINT";
const char *originalValue;
const char *value;
char *value;
const char *testValue;
SDL_bool result;
int i, j;
@@ -142,7 +143,54 @@ hints_setHint(void *arg)
SDL_free((void *)originalValue);
}
SDL_free((void *)value);
SDL_free(value);
/* Set default value in environment */
SDL_setenv(testHint, "original", 1);
SDLTest_AssertPass("Call to SDL_GetHint() after saving and restoring hint");
originalValue = SDL_GetHint(testHint);
value = (originalValue == NULL) ? NULL : SDL_strdup(originalValue);
SDL_SetHint(testHint, "temp");
SDL_SetHint(testHint, value);
SDL_free(value);
testValue = SDL_GetHint(testHint);
SDLTest_AssertCheck(
testValue && SDL_strcmp(testValue, "original") == 0,
"testValue = %s, expected \"original\"",
testValue);
SDLTest_AssertPass("Call to SDL_SetHintWithPriority(NULL, SDL_HINT_DEFAULT)");
SDL_SetHintWithPriority(testHint, NULL, SDL_HINT_DEFAULT);
testValue = SDL_GetHint(testHint);
SDLTest_AssertCheck(
testValue && SDL_strcmp(testValue, "original") == 0,
"testValue = %s, expected \"original\"",
testValue);
SDLTest_AssertPass("Call to SDL_SetHintWithPriority(\"temp\", SDL_HINT_OVERRIDE)");
SDL_SetHintWithPriority(testHint, "temp", SDL_HINT_OVERRIDE);
testValue = SDL_GetHint(testHint);
SDLTest_AssertCheck(
testValue && SDL_strcmp(testValue, "temp") == 0,
"testValue = %s, expected \"temp\"",
testValue);
SDLTest_AssertPass("Call to SDL_SetHintWithPriority(NULL, SDL_HINT_OVERRIDE)");
SDL_SetHintWithPriority(testHint, NULL, SDL_HINT_OVERRIDE);
testValue = SDL_GetHint(testHint);
SDLTest_AssertCheck(
testValue == NULL,
"testValue = %s, expected NULL",
testValue);
SDLTest_AssertPass("Call to SDL_ResetHint()");
SDL_ResetHint(testHint);
testValue = SDL_GetHint(testHint);
SDLTest_AssertCheck(
testValue && SDL_strcmp(testValue, "original") == 0,
"testValue = %s, expected \"original\"",
testValue);
return TEST_COMPLETED;
}