Test that a delivery seat holder without times still holds the seat, and one serving it is not refused (hq issue 382, review of #206)

internal/catalogue/delivery_seat_test.go

@@ -97,3 +97,39 @@ func TestTheDeliverySeatPromisesRetireHistoryOptionally(t *testing.T) {
 		t.Fatalf("a holder serving retire-history: %v", err)
 	}
 }
+
+// The seat says delivery times (novox/hq ADR 0282, issue 382): `times`, over some days or for one delivery. Added
+// after the holder shipped, it is optional, so the holder that does not serve it yet still holds the seat, and one
+// that does is not refused for a verb the seat lacks.
+func TestTheDeliverySeatPromisesTimesOptionally(t *testing.T) {
+	seat, _ := SeatNamed(DeliverySeat)
+	var times *Verb
+	for i := range seat.Serves {
+		if seat.Serves[i].Name == "times" {
+			times = &seat.Serves[i]
+		}
+	}
+	if times == nil || !times.Optional {
+		t.Fatalf("the delivery seat promises %v, times optionally", VerbNames(seat.Serves))
+	}
+	props, _ := times.Input["properties"].(map[string]any)
+	for _, arg := range []string{"days", "id"} {
+		if _, has := props[arg]; !has {
+			t.Errorf("times takes no %q", arg)
+		}
+	}
+	var without []string
+	for _, v := range VerbNames(seat.Serves) {
+		if v != "times" {
+			without = append(without, v)
+		}
+	}
+	m := Manifest{Module: "mesh-delivery", Claims: []Claim{{Name: DeliverySeat, Scope: ScopeMesh, Serves: without}}}
+	if err := CanHold(m, seat); err != nil {
+		t.Fatalf("a holder without times yet: %v", err)
+	}
+	m.Claims[0].Serves = VerbNames(seat.Serves)
+	if err := CanHold(m, seat); err != nil {
+		t.Fatalf("a holder serving times: %v", err)
+	}
+}