refactor(samples): Add more metadata to dual-region sample (#2016)

Author: d-goog

samples/createBucketWithDualRegion.js

@@ -58,7 +58,14 @@ function main(
       },
     });
 
-    console.log(`${bucket.name} created in '${region1}' and '${region2}'`);
+    console.log(`Created '${bucket.name}'`);
+    console.log(`- location: '${bucket.metadata.location}'`);
+    console.log(`- locationType: '${bucket.metadata.locationType}'`);
+    console.log(
+      `- customPlacementConfig: '${JSON.stringify(
+        bucket.metadata.customPlacementConfig
+      )}'`
+    );
   }
 
   createDualRegionBucket().catch(console.error);

samples/system-test/buckets.test.js

@@ -223,11 +223,14 @@ it('should create a dual-region bucket', async () => {
     `node createBucketWithDualRegion.js ${bucketNameDualRegion} ${DUAL_REGION.LOCATION} ${DUAL_REGION.REGIONS[0]} ${DUAL_REGION.REGIONS[1]}`
   );
 
-  assert.include(
-    output,
-    `${bucketNameDualRegion} created in '${DUAL_REGION.REGIONS[0]}' and '${DUAL_REGION.REGIONS[1]}'`
-  );
-
+  // Ensure the sample outputs the desired result
+  assert.include(output, bucketNameDualRegion);
+  assert.include(output, DUAL_REGION.LOCATION);
+  assert.include(output, DUAL_REGION.REGIONS[0]);
+  assert.include(output, DUAL_REGION.REGIONS[1]);
+  assert.include(output, 'dual-region');
+
+  // Make API request for further verification
   const [exists] = await dualRegionBucket.exists();
   assert.strictEqual(exists, true);