Fixed test

Author: TetyanaYahodska

compute/cloud-client/src/main/java/compute/CreateInstanceWithRegionalDiskFromSnapshot.java

@@ -62,7 +62,7 @@ public static void main(String[] args) throws IOException, ExecutionException,
   }
 
   // Creates a new VM instance with regional disk from a snapshot and specifies replica zones.
-  public static Instance createInstanceWithRegionalDiskFromSnapshot(
+  public static Operation.Status createInstanceWithRegionalDiskFromSnapshot(
       String projectId, String zone, String instanceName, String diskName,
       String diskType, String snapshotLink, List<String> replicaZones)
           throws IOException, ExecutionException, InterruptedException, TimeoutException {
@@ -97,14 +97,13 @@ public static Instance createInstanceWithRegionalDiskFromSnapshot(
               .addNetworkInterfaces(networkInterface)
               .build();
 
-      Operation operation = instancesClient.insertAsync(projectId, zone, instanceResource).get(3,
+      Operation response = instancesClient.insertAsync(projectId, zone, instanceResource).get(3,
               TimeUnit.MINUTES);
 
-      if (operation.hasError()) {
-        return null;
+      if (response.hasError()) {
+        throw new Error("Error creating instance! " + response.getError());
       }
-
-      return instancesClient.get(projectId, zone, instanceName);
+      return response.getStatus();
     }
   }
 }

compute/cloud-client/src/test/java/compute/InstanceOperationsIT.java

@@ -259,12 +259,11 @@ public void testCreateEncryptedDisk()
   @Test
   public void testCreateInstanceWithRegionalDiskFromSnapshot()
           throws IOException, ExecutionException, InterruptedException, TimeoutException {
-    Instance instance =
-        CreateInstanceWithRegionalDiskFromSnapshot.createInstanceWithRegionalDiskFromSnapshot(
-        PROJECT_ID, ZONE, INSTANCE_NAME, REPLICATED_DISK_NAME,
-                DISK_TYPE, DISK_SNAPSHOT_LINK, REPLICA_ZONES);
+    Operation.Status status = CreateInstanceWithRegionalDiskFromSnapshot
+                  .createInstanceWithRegionalDiskFromSnapshot(
+          PROJECT_ID, ZONE, INSTANCE_NAME, REPLICATED_DISK_NAME,
+                  DISK_TYPE, DISK_SNAPSHOT_LINK, REPLICA_ZONES);
 
-    assertThat(instance).isNotNull();
-    assertThat(instance.getName()).isEqualTo(INSTANCE_NAME);
+    assertThat(status).isEqualTo(Operation.Status.DONE);
   }
 }