import {hashIp} from '../../src/models/feedback/feedback.ratelimit';

describe('hashIp', () => {
	it('never returns the raw IP', () => {
		const hash = hashIp('203.0.113.42');
		expect(hash).not.toContain('203.0.113.42');
	});

	it('is deterministic for the same input', () => {
		expect(hashIp('203.0.113.42')).toBe(hashIp('203.0.113.42'));
	});

	it('differs for different inputs', () => {
		expect(hashIp('203.0.113.42')).not.toBe(hashIp('203.0.113.43'));
	});

	it('is a 64-char hex SHA-256 digest', () => {
		expect(hashIp('203.0.113.42')).toMatch(/^[0-9a-f]{64}$/);
	});
});