fix(samples) Add fulfillment places code sample: didn't work (#488)

* Removed hardcoded parts.

* Changed delay.

* Merge conflict resolved: updated test.

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* PR fix: add fulfillment test.

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: 2 people

retail/interactive-tutorials/src/main/java/product/AddFulfillmentPlaces.java

@@ -77,8 +77,8 @@ public static void addFulfillmentPlaces(String productName, String placeId)
       serviceClient.addFulfillmentPlacesAsync(addFulfillmentPlacesRequest);
       // This is a long-running operation and its result is not immediately
       // present with get operations,thus we simulate wait with sleep method.
-      System.out.println("Add fulfillment places, wait 30 seconds: ");
-      TimeUnit.SECONDS.sleep(30);
+      System.out.println("Add fulfillment places, wait 45 seconds: ");
+      TimeUnit.SECONDS.sleep(45);
     }
   }
 }

retail/interactive-tutorials/src/test/java/product/AddFulfillmentPlacesTest.java

@@ -42,6 +42,7 @@ public class AddFulfillmentPlacesTest {
 
   @Before
   public void setUp() throws IOException, InterruptedException, ExecutionException {
+    // TODO(developer): Replace these variables before running the sample.
     String projectId = ServiceOptions.getDefaultProjectId();
     String generatedProductId = UUID.randomUUID().toString();
     String productName =
@@ -64,7 +65,7 @@ public void testAddFulfillment() {
     String outputResult = bout.toString();
 
     assertThat(outputResult).contains("Add fulfilment places with current date");
-    assertThat(outputResult).contains("Add fulfillment places, wait 30 seconds");
+    assertThat(outputResult).contains("Add fulfillment places, wait 45 seconds");
   }
 
   @After