90 lines
2.4 KiB
TypeScript
90 lines
2.4 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { EqualityCache } from '../../src/cache/equality-cache';
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interface TestCacheValue {
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val: number;
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}
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describe('EqualityCache', () => {
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describe('has', () => {
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it('positive', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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cache.set('test', { val: 2 });
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expect(cache.has('test')).toBeTruthy();
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});
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it('negative', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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expect(cache.has('absent')).toBeFalsy();
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});
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});
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describe('get', () => {
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it('positive', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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const original = { val: 2 };
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cache.set('test', original);
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const replacement = { val: 2 };
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cache.set('test', replacement);
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expect(cache.get('test')).not.toBe(original);
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expect(cache.get('test')).toBe(replacement);
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});
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it('negative', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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expect(cache.get('absent')).toBeNull();
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});
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});
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it('delete', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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cache.set('test-1', { val: 1 });
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cache.set('test-2', { val: 2 });
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cache.set('test-3', { val: 3 });
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cache.delete('test-2');
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expect(cache.get('test-2')).toBeNull();
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expect(cache.get('test-1')).toEqual({ val: 1 });
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expect(cache.get('test-3')).toEqual({ val: 3 });
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});
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it('clear', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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cache.set('test-1', { val: 1 });
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cache.set('test-2', { val: 2 });
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cache.set('test-3', { val: 3 });
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cache.clear();
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expect(cache.get('test-1')).toBeNull();
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expect(cache.get('test-2')).toBeNull();
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expect(cache.get('test-3')).toBeNull();
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});
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it('getMatches', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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cache.set('test-1', { val: 1 });
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cache.set('test-2', { val: 2 });
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cache.set('test-3', { val: 3 });
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expect(cache.getMatches((obj) => obj.val >= 2)).toEqual([{ val: 2 }, { val: 3 }]);
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});
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it('entries', () => {
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const cache = new EqualityCache<string, TestCacheValue>();
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cache.set('test-1', { val: 1 });
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cache.set('test-2', { val: 2 });
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cache.set('test-3', { val: 3 });
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expect([...cache.entries()]).toEqual([
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['test-1', { val: 1 }],
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['test-2', { val: 2 }],
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['test-3', { val: 3 }],
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]);
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});
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});
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