fix(cmd): PUBSUB_NUMSUB return count as number (#3103)

fixes: #3102

Author: nkaradzhov

packages/client/lib/commands/PUBSUB_NUMSUB.spec.ts

@@ -27,10 +27,38 @@ describe('PUBSUB NUMSUB', () => {
     });
   });
 
-  testUtils.testWithClient('client.pubSubNumSub', async client => {
+  testUtils.testWithClient('client.pubSubNumSub resp2', async client => {
     assert.deepEqual(
       await client.pubSubNumSub(),
       Object.create(null)
     );
-  }, GLOBAL.SERVERS.OPEN);
+
+    const res = await client.PUBSUB_NUMSUB(["test", "test2"]);
+    assert.equal(res.test, 0);
+    assert.equal(res.test2, 0);
+
+  }, {
+    ...GLOBAL.SERVERS.OPEN,
+    clientOptions: {
+      RESP: 2
+    }
+  });
+
+  testUtils.testWithClient('client.pubSubNumSub resp3', async client => {
+    assert.deepEqual(
+      await client.pubSubNumSub(),
+      Object.create(null)
+    );
+
+    const res = await client.PUBSUB_NUMSUB(["test", "test2"]);
+    assert.equal(res.test, 0);
+    assert.equal(res.test2, 0);
+
+  }, {
+    ...GLOBAL.SERVERS.OPEN,
+    clientOptions: {
+      RESP: 3
+    }
+  });
+
 });

packages/client/lib/commands/PUBSUB_NUMSUB.ts

@@ -7,7 +7,7 @@ export default {
   IS_READ_ONLY: true,
   /**
    * Constructs the PUBSUB NUMSUB command
-   * 
+   *
    * @param parser - The command parser
    * @param channels - Optional channel names to get subscription count for
    * @see https://redis.io/commands/pubsub-numsub/
@@ -21,15 +21,15 @@ export default {
   },
   /**
    * Transforms the PUBSUB NUMSUB reply into a record of channel name to subscriber count
-   * 
+   *
    * @param rawReply - The raw reply from Redis
    * @returns Record mapping channel names to their subscriber counts
    */
   transformReply(rawReply: UnwrapReply<ArrayReply<BlobStringReply | NumberReply>>) {
     const reply = Object.create(null);
     let i = 0;
     while (i < rawReply.length) {
-      reply[rawReply[i++].toString()] = rawReply[i++].toString();
+      reply[rawReply[i++].toString()] = Number(rawReply[i++]);
     }
 
     return reply as Record<string, NumberReply>;