# test.govlab/quality/core/comparators/rule.comparator.test.ts

> 7 lines of code and 0 definitions.

Tree: Codebase Testing
Language: typescript
Canonical: https://banes-lab.com/anatomy/testing#file-testing-test-govlab-quality-core-comparators-rule-comparator-test-ts
Source text: https://banes-lab.com/source/testing/test.govlab/quality/core/comparators/rule.comparator.test.ts.txt

Listed in [test.govlab/quality/core/comparators](https://banes-lab.com/api/source/testing/test.govlab/quality/core/comparators.md), before [test.govlab/quality/core/comparators/text.comparator.test.ts](https://banes-lab.com/source/testing/test.govlab/quality/core/comparators/text.comparator.test.ts.md).

## Contained in

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

## Source

```typescript
import { expect, test } from "vitest";
import { byRuleId } from "@govlab/quality/core/comparators/rule.comparator.ts";

test("byRuleId orders rules by id and holds equal ids level", () => {
    const rules = [{ ruleId: "no-var" }, { ruleId: "eqeqeq" }, { ruleId: "max-lines" }];
    expect(rules.toSorted(byRuleId).map((rule) => rule.ruleId)).toStrictEqual(["eqeqeq", "max-lines", "no-var"]);
    expect(byRuleId({ ruleId: "a" }, { ruleId: "a" })).toBe(0);
});
```