in src/Framework/HackTest.hack [232:247]
private function filterTestMethods(): void {
$methods = vec[];
foreach ($this->methods as $method) {
$type_text = $method->getReturnTypeText();
if ($type_text === false) {
// nothing we can really do if a method begins with 'test' and has no return type hint
$methods[] = $method;
continue;
}
$type = Str\replace($type_text, 'HH\\', '');
if ($type === 'void' || $type === 'Awaitable<void>') {
$methods[] = $method;
}
}
$this->methods = $methods;
}