# itOnly

`import { itOnly } from "destack:test";`

Register one focused test.

```ds title="itOnly"
export function itOnly(name: string, body?: Body | undefined): void
```

[language/library/src/test/case.ds:67:69](https://github.com/destack-sh/destack/blob/main/language/library/src/test/case.ds#L67-L69)