public function testApiGetThreads_ReturnsFulfilledPromiseThatContainsListOfThreads()
{
$manager = $this->createThreadManager();
$manager->allocateThread($alias1 = 'alias1', $object1 = new StdClass());
$manager->allocateThread($alias2 = 'alias2', $object2 = new StdClass());
$callable = $this->createCallableMock();
$callable->expects($this->once())->method('__invoke')->with([$alias1, $alias2]);
$manager->getThreads()->then($callable);
}