fix: s3-count-on-list-v2 (#632)

Author: fenos

src/storage/protocols/s3/s3-handler.ts

@@ -243,7 +243,7 @@ export class S3ProtocolHandler {
         MaxKeys: limit,
         Delimiter: delimiter,
         EncodingType: encodingType,
-        KeyCount: results.folders.length + results.folders.length,
+        KeyCount: results.objects.length + results.folders.length,
         CommonPrefixes: commonPrefixes,
       },
     }

src/test/s3-protocol.test.ts

@@ -278,6 +278,7 @@ describe('S3 Protocol', () => {
         const resp = await client.send(listBuckets)
         expect(resp.Contents?.length).toBe(1)
         expect(resp.CommonPrefixes?.length).toBe(2)
+        expect(resp.KeyCount).toBe(3)
       })
 
       it('paginate keys and common prefixes', async () => {