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Add comment about randomOrder and random seed

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Sylvain
2024-08-08 10:21:42 +02:00
parent b5b868044f
commit bd7d4a3752
1 changed files with 8 additions and 0 deletions
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8
src/test/SDL_test_harness.c
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@@ -551,6 +551,13 @@ int SDLTest_RunSuites(SDLTest_TestSuiteReference *testSuites[], const char *user
int tmp; int tmp;
a = SDLTest_RandomIntegerInRange(0, nbSuites - 1); a = SDLTest_RandomIntegerInRange(0, nbSuites - 1);
b = SDLTest_RandomIntegerInRange(0, nbSuites - 1); b = SDLTest_RandomIntegerInRange(0, nbSuites - 1);
/*
* NB: prevent swapping here to make sure the tests start with the same
* random seed (whether they are run in order or not).
* So we consume same number of SDLTest_RandomIntegerInRange() in all cases.
*
* If some random value were used at initialization before the tests start, the --seed wouldn't do the same with or without randomOrder.
*/
/* Swap */ /* Swap */
if (randomOrder) { if (randomOrder) {
tmp = arraySuites[b]; tmp = arraySuites[b];
@@ -602,6 +609,7 @@ int SDLTest_RunSuites(SDLTest_TestSuiteReference *testSuites[], const char *user
a = SDLTest_RandomIntegerInRange(0, nbTestCases - 1); a = SDLTest_RandomIntegerInRange(0, nbTestCases - 1);
b = SDLTest_RandomIntegerInRange(0, nbTestCases - 1); b = SDLTest_RandomIntegerInRange(0, nbTestCases - 1);
/* Swap */ /* Swap */
/* See previous note */
if (randomOrder) { if (randomOrder) {
tmp = arrayTestCases[b]; tmp = arrayTestCases[b];
arrayTestCases[b] = arrayTestCases[a]; arrayTestCases[b] = arrayTestCases[a];