[AFP-55] Modify GET all test endpoint

src/test/java/com/nisum/ascend/inventory/controller/ProductControllerTest.java

@@ -22,6 +22,7 @@ import org.springframework.web.reactive.function.client.WebClient;
 
 import java.util.List;
 
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 @ExtendWith(SpringExtension.class)
@@ -46,8 +47,16 @@ class ProductControllerTest {
                 .exchange()
                 .expectStatus().isOk()
                 .expectHeader().contentType(MediaType.APPLICATION_JSON_VALUE)
-                .returnResult(Product.class)
-                .getResponseBody();
+                .expectBodyList(Product.class)
+                .consumeWith(product ->{
+                    List<Product> products = product.getResponseBody();
+                    products.forEach( p ->{
+                        assertNotNull(p.getSku());
+                        assertNotNull(p.getUpc());
+                        System.out.println("Product SKU: " + p.getSku());
+                        System.out.println("Product UPC: " + p.getUpc());
+                    });
+                });
     }