Update DynamicProxyTest.java

Author: Deepak-Vohra

core-java-modules/core-java-lang-oop-patterns-2/src/test/java/com/baeldung/overridemethod/proxy/jdk/DynamicProxyTest.java

@@ -9,7 +9,7 @@
 public class DynamicProxyTest {
 
     @Test
-    void testJdkDynamicProxy() {
+    void givenACalculator_whenUsingJdkDynamicProxy_thenJdkDynamicProxyCanBeUsed() {
         Calculator simpleCalc = new SimpleCalculator();
         LoggingInvocationHandler handler = new LoggingInvocationHandler(simpleCalc);
 
@@ -20,6 +20,7 @@ void testJdkDynamicProxy() {
         );
 
         assertEquals(30, proxyCalc.add(20, 10));
+        assertEquals(10, proxyCalc.subtract(20, 10));
     }
 }