29 	struct mpsc_node *stub, *next, *tail;  in ZTEST()  local
35 	stub = &push_pop_q.stub;  in ZTEST()
36 	next = stub->next;  in ZTEST()
38 	zassert_equal(head, stub, "Head should point at stub");  in ZTEST()
39 	zassert_equal(tail, stub, "Tail should point at stub");  in ZTEST()
52 	next = mpsc_ptr_get(push_pop_q.stub.next);  in ZTEST()
53 	zassert_equal(next, &push_pop_nodes[0], "Queue stub should point at push_pop_node");  in ZTEST()
55 	stub = &push_pop_q.stub;  in ZTEST()
56 	zassert_equal(tail, stub, "Tail should point at stub");  in ZTEST()
59 	stub = &push_pop_q.stub;  in ZTEST()
61 	zassert_not_equal(node, stub, "Pop should not return stub");  in ZTEST()
126 		zassert_not_equal(n, &mpsc_q.stub, "mpsc should not produce stub");  in mpsc_consumer()