The controller no longer subscribes to the alive message: HostBeats, its handler, the heartbeat-gap duration and a fixed silent bound (issue 1183, AC3, AC4, AC5)

internal/inventory/durations_test.go

@@ -44,25 +44,6 @@ func TestAnApplyIsMeasuredOncePerSend(t *testing.T) {
 	}
 }
 
-// A machine's silence is the time since its last word, once per word.
-func TestASilenceIsMeasuredFromTheLastWord(t *testing.T) {
-	inv := ForTest(t)
-	ctx := t.Context()
-	before := time.Now().Add(-90 * time.Second)
-	for range 2 {
-		if err := inv.RecordHeartbeatGap(ctx, "anchor", before); err != nil {
-			t.Fatal(err)
-		}
-	}
-	if err := inv.RecordHeartbeatGap(ctx, "anchor", time.Time{}); err != nil {
-		t.Fatal(err)
-	}
-	ds, err := inv.Durations(ctx, DurationHeartbeatGap, time.Now().Add(-time.Hour))
-	if err != nil || len(ds) != 1 || ds[0].Took < 90*time.Second || ds[0].Took > 2*time.Minute {
-		t.Fatalf("%v %+v", err, ds)
-	}
-}
-
 // A plan's tier is measured when the plan leaves it — moving on, or ending — and only then.
 func TestAPlansTierIsMeasuredWhenItIsLeft(t *testing.T) {
 	inv := ForTest(t)