Update javafx-template/src/test/java/app/AppTest.java

Fixes the #3 (closed)

javafx-template/src/test/java/app/AppTest.java

@@ -104,7 +104,7 @@ public class AppTest extends ApplicationTest {
         for (var label : labels.split(" ")) {
             click(label.equals("\n") ? enterLabel : label);
         }
-        checkView("", Stream.of(operandsString.split(" ")).mapToDouble(Double::valueOf).toArray());
+        checkView(Stream.of(operandsString.split(" ")).mapToDouble(Double::valueOf).toArray());
     }
 
     private static Stream<Arguments> testClicksOperands() {