# Example: Test Payload with Schema

## Using a Test Payload with a Schema in XYO Development

When developing and testing modules in the XYO ecosystem (such as Sentinels, Archivists, or Diviners), developers often use **custom test schemas**. 

**This allows them to safely validate system behavior without affecting real production data.**

### What Is a Test Payload?

A **Test Payload** is a simple payload structure created with:

* A custom schema (e.g., `network.xyo.test`)
* Test data values
* Minimal required fields for storage, retrieval, or query operations

This enables developers to focus on testing the **system flow** (insert ➔ retrieve ➔ validate) without needing a real-world schema like `network.xyo.transfer`.

### Example Test Payload

Here’s what a simple **Test Payload** might look like:

```typescript
const NETWORK_XYO_TEST = 'network.xyo.test' as const;

const testPayloads = [
  {
    schema: NETWORK_XYO_TEST,
    value: 1,
  },
  {
    schema: NETWORK_XYO_TEST,
    value: 2,
  },
];
```


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