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test: Don't accept results that are much less than expected 

While looking at the other tests in this file, I noticed that instead
of checking for a result in the range of expected ± FLT_EPSILON as I
would have expected, these tests would accept any result strictly less
than expected + FLT_EPSILON, for example a wrong result that is very
large and negative. This is presumably not what was intended, so add
the SDL_fabs() that I assume was meant to be here.

Fixes: 474c8d00 "testautomation: don't do float equality tests"
Signed-off-by: Simon McVittie <smcv@collabora.com>
main
Simon McVittie 2024-02-01 20:10:50 +00:00 committed by Sam Lantinga
parent f1f9e27128
commit b66dba2a9d
1 changed files with 2 additions and 2 deletions
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4
test/testautomation_math.c
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@ -77,7 +77,7 @@ helper_dtod(const char *func_name, d_to_d_func func,
Uint32 i;
for (i = 0; i < cases_size; i++) {
const double result = func(cases[i].input);
SDLTest_AssertCheck((result - cases[i].expected) < FLT_EPSILON,
SDLTest_AssertCheck(SDL_fabs(result - cases[i].expected) < FLT_EPSILON,
"%s(%f), expected %f, got %f",
func_name,
cases[i].input,
@ -1154,7 +1154,7 @@ log_baseCases(void *args)
1.0, 0.0, result);
result = SDL_log(EULER);
SDLTest_AssertCheck((result - 1.) < FLT_EPSILON,
SDLTest_AssertCheck(SDL_fabs(result - 1.) < FLT_EPSILON,
"Log(%f), expected %f, got %f",
EULER, 1.0, result);