check if the test dataset already exists

Author: Sita04

security-command-center/snippets/src/test/java/BigQueryExportIT.java

@@ -105,6 +105,9 @@ private static void createBigQueryDataset(String datasetName) {
       String newDatasetName = newDataset.getDatasetId().getDataset();
       System.out.println(newDatasetName + " created successfully");
     } catch (BigQueryException e) {
+      if (e.toString().contains("Already Exists: Dataset")) {
+        return;
+      }
       Assert.fail("Dataset was not created. \n" + e);
     }
   }