# test.govlab/patterns/core/converters/math.converter.test.ts

> 14 lines of code and 0 definitions.

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

Listed in [test.govlab/patterns/core/converters](https://banes-lab.com/api/source/testing/test.govlab/patterns/core/converters.md), after [test.govlab/patterns/core/converters/folder.converter.test.ts](https://banes-lab.com/source/testing/test.govlab/patterns/core/converters/folder.converter.test.ts.md) and before [test.govlab/patterns/core/converters/package.fixture.ts](https://banes-lab.com/source/testing/test.govlab/patterns/core/converters/package.fixture.ts.md).

## Contained in

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

## Source

```typescript
import { describe, expect, it } from "vitest";
import { createRng } from "@govlab/patterns/core/factories/seed.factory.ts";
import { gaussian } from "@govlab/patterns/core/converters/math.converter.ts";

const SEED = 1;
const MEAN = 10;
const SPREAD = 0;

describe("gaussian", () => {
    it("is reproducible under a fixed seed", () => {
        expect(gaussian(createRng(SEED))).toBe(gaussian(createRng(SEED)));
    });

    it("returns the mean exactly when the spread is zero", () => {
        expect(gaussian(createRng(SEED), MEAN, SPREAD)).toBe(MEAN);
    });
});
```