Function test_model_path

tests/ds4_test.c:11–14

static ds4_engine *test_engine_fast;
static ds4_engine *test_engine_quality;

static const char *test_model_path(void) {
    const char *model_path = getenv("DS4_TEST_MODEL");
    return (model_path && model_path[0]) ? model_path : "ds4flash.gguf";
}