package link

import (
	"strings"
	"testing"
)

// TestReplay331 is the replay of hq issue 331 (mesh-lab R331), written with only what the node-engine had
// before its fix so it can be laid over the commit before: every declared tool check on a live machine
// read "no link to the bus is open" while the link was up, because the link the engine attaches — the NATS
// link — could not ask a tool, and the queue said that as no link.
//
// The NATS link is attached with no connection under it, so no bus is needed: the question must reach the
// link and fail there, not stop at the queue as if no link were open.
func TestReplay331(t *testing.T) {
	q := &Queue{Membership: Membership{Node: "laptop"}}
	q.attach(t.Context(), &natsLink{node: "laptop"})
	_, _, err := q.AskTool(t.Context(), "sensors", "sensors_health")
	if err == nil {
		t.Fatal("asked on no connection and was answered")
	}
	if strings.Contains(err.Error(), "no link to the bus is open") {
		t.Fatalf("a tool check on the attached NATS link was refused as no link: %v", err)
	}
}