Files

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TypeScript

import { describe, expect, it } from 'vitest';
import { Cache } from '../../src/cache/cache';
interface TestCacheValue {
val: number;
}
describe('Cache', () => {
describe('has', () => {
it('positive', () => {
const cache = new Cache<string, TestCacheValue>();
cache.set('test', { val: 2 });
expect(cache.has('test')).toBeTruthy();
});
it('negative', () => {
const cache = new Cache<string, TestCacheValue>();
expect(cache.has('absent')).toBeFalsy();
});
});
describe('get', () => {
it('positive', () => {
const cache = new Cache<string, TestCacheValue>();
cache.set('test', { val: 2 });
expect(cache.get('test')).toEqual({ val: 2 });
});
it('negative', () => {
const cache = new Cache<string, TestCacheValue>();
expect(cache.get('absent')).toBeNull();
});
});
it('delete', () => {
const cache = new Cache<string, TestCacheValue>();
cache.set('test-1', { val: 1 });
cache.set('test-2', { val: 2 });
cache.set('test-3', { val: 3 });
cache.delete('test-2');
expect(cache.get('test-2')).toBeNull();
expect(cache.get('test-1')).toEqual({ val: 1 });
expect(cache.get('test-3')).toEqual({ val: 3 });
});
it('clear', () => {
const cache = new Cache<string, TestCacheValue>();
cache.set('test-1', { val: 1 });
cache.set('test-2', { val: 2 });
cache.set('test-3', { val: 3 });
cache.clear();
expect(cache.get('test-1')).toBeNull();
expect(cache.get('test-2')).toBeNull();
expect(cache.get('test-3')).toBeNull();
});
it('getMatches', () => {
const cache = new Cache<string, TestCacheValue>();
cache.set('test-1', { val: 1 });
cache.set('test-2', { val: 2 });
cache.set('test-3', { val: 3 });
expect(cache.getMatches((obj) => obj.val >= 2)).toEqual([{ val: 2 }, { val: 3 }]);
});
it('entries', () => {
const cache = new Cache<string, TestCacheValue>();
cache.set('test-1', { val: 1 });
cache.set('test-2', { val: 2 });
cache.set('test-3', { val: 3 });
expect([...cache.entries()]).toEqual([
['test-1', { val: 1 }],
['test-2', { val: 2 }],
['test-3', { val: 3 }],
]);
});
});