# test.govlab/patterns/core/formatters/definition.formatter.test.ts

> 9 lines of code and 0 definitions.

Tree: Codebase Testing
Language: typescript
Canonical: https://banes-lab.com/anatomy/testing#file-testing-test-govlab-patterns-core-formatters-definition-formatter-test-ts
Source text: https://banes-lab.com/source/testing/test.govlab/patterns/core/formatters/definition.formatter.test.ts.txt

Listed in [test.govlab/patterns/core/formatters](https://banes-lab.com/api/source/testing/test.govlab/patterns/core/formatters.md), before [test.govlab/patterns/core/formatters/markup.formatter.test.ts](https://banes-lab.com/source/testing/test.govlab/patterns/core/formatters/markup.formatter.test.ts.md).

## Contained in

- [test.govlab/patterns/core/formatters](https://banes-lab.com/anatomy/testing/folder-testing-test-govlab-patterns-core-formatters.md)

## Source

```typescript
import { KEY_SEP, keyOf, scopeOf } from "@govlab/patterns/core/formatters/definition.formatter.ts";
import { describe, expect, it } from "vitest";

describe("the definition key", () => {
    it("joins a scope and a name and reads the scope back", () => {
        const key = keyOf("core/a.ts", "run");
        expect(key).toBe(`core/a.ts${KEY_SEP}run`);
        expect(scopeOf(key)).toBe("core/a.ts");
    });
});
```