Read the seat mesh-placement's state through the sdk's PlacementsOf, and write the test mesh's placement as the seat does, one key per module and node (issue 774, research 072 row 37)

node-tools/internal/console/address.go

@@ -398,14 +398,13 @@ func recordsOn(conn *bus.Conn) (recorded []recordedModule, machines []string, wh
 	}
 	machines = delivery.MachineNames(placements)
 	on := map[string][]string{}
+	// The placement's keys in either form, a node key and its module keys or the form before (research 072 row 37).
+	assembled, err := delivery.PlacementsOf(placements)
+	if err != nil {
+		why = append(why, delivery.PlacementRead+" (not every key is a placement: "+err.Error()+")")
+	}
 	for _, node := range machines {
-		key, _ := delivery.PlacementKey(node)
-		var p delivery.Placement
-		if json.Unmarshal(placements[key], &p) != nil {
-			why = append(why, delivery.PlacementRead+" ("+key+" is not a placement)")
-			continue
-		}
-		for _, m := range p.Modules {
+		for _, m := range assembled[node].Modules {
 			on[m.Module] = append(on[m.Module], node)
 		}
 	}

node-tools/internal/meshtest/meshtest.go

@@ -201,11 +201,16 @@ func (m *Mesh) Placed(t *testing.T, tools map[string][]string, on map[string][]s
 		for _, module := range placed {
 			p.Modules = append(p.Modules, delivery.PlacedModule{Module: module})
 		}
-		raw, _ := json.Marshal(p)
-		key, _ := delivery.PlacementKey(node)
-		if _, err := placement.Put(key, raw); err != nil {
+		// As the seat writes it: its node key and a key per module (research 072 row 37).
+		values, err := delivery.PlacementValues(p)
+		if err != nil {
 			t.Fatal(err)
 		}
+		for key, raw := range values {
+			if _, err := placement.Put(key, raw); err != nil {
+				t.Fatal(err)
+			}
+		}
 	}
 }