fix: game order api & tests

game/internal/router/router_helper_test.go

@@ -32,15 +32,40 @@ func id() string {
 
 type dummyExecutor struct {
 	CommandsExecuted int
+
+	// ValidateOrderResult, when non-nil, is returned from ValidateOrder.
+	// When nil, ValidateOrder synthesises an order from the received args
+	// so the response body is non-empty for status assertions.
+	ValidateOrderResult *order.UserGamesOrder
+	ValidateOrderErr    error
+
+	// FetchOrder controls and observes calls to FetchOrder.
+	FetchOrderActor  string
+	FetchOrderTurn   uint
+	FetchOrderResult *order.UserGamesOrder
+	FetchOrderOK     bool
+	FetchOrderErr    error
 }
 
 func (e *dummyExecutor) ValidateOrder(actor string, cmd ...order.DecodableCommand) (*order.UserGamesOrder, error) {
 	e.CommandsExecuted = len(cmd)
-	return nil, nil
+	if e.ValidateOrderErr != nil {
+		return nil, e.ValidateOrderErr
+	}
+	if e.ValidateOrderResult != nil {
+		return e.ValidateOrderResult, nil
+	}
+	return &order.UserGamesOrder{
+		GameID:    uuid.New(),
+		UpdatedAt: 1,
+		Commands:  append([]order.DecodableCommand(nil), cmd...),
+	}, nil
 }
 
 func (e *dummyExecutor) FetchOrder(actor string, turn uint) (*order.UserGamesOrder, bool, error) {
-	return nil, true, nil
+	e.FetchOrderActor = actor
+	e.FetchOrderTurn = turn
+	return e.FetchOrderResult, e.FetchOrderOK, e.FetchOrderErr
 }
 
 func (e *dummyExecutor) Execute(command ...handler.Command) error {