---
title: Test Instance Block Status
description: "Play 0x7E, server → client."
---

`play` · `0x7E` · **clientbound** (server → client)

Reports the status of a test instance block to the client. `status` is a text component describing the test state; `size` optionally gives the test area dimensions. The server sends it when the player interacts with a test instance block in test-enabled worlds.

Sent by the server, read by the client. Listen for it with `client.on("TestInstanceBlockStatus", (data) => …)` on the receiving side.

## Fields

| Field | Type | Notes |
|---|---|---|
| `status` | NBT |  |
| `size` | Optional |  |

## Send it

```ts
await client.sendPacket("TestInstanceBlockStatus", {
  status: /* NBT */,
  size: /* Optional */,
});
```

Field aliases listed under Notes are accepted as alternative keys when writing.

Source: [`src/Core/Versions/776/Packets/play/clientbound/TestInstanceBlockStatus.ts`](https://github.com/GDLev/mc-protocol/blob/master/src/Core/Versions/776/Packets/play/clientbound/TestInstanceBlockStatus.ts)