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import { randomUUID } from 'crypto'; |
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import { Cached } from '@/cache/decorators/Cached'; |
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import { registeredBeans, registeredMethods } from '@/core'; |
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import { Executor } from '@/core/executor'; |
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jest.mock('@/core', () => ({ |
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registeredBeans: new Map(), |
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registeredMethods: new Map(), |
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logger: { |
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info: jest.fn(), |
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debug: jest.fn(), |
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error: jest.fn(), |
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}, |
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})); |
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const createProxy = (actualBean: any) => new Proxy(actualBean, { |
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get(target, prop) { |
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const interceptor = (target as any)._interceptors.get(prop as string); |
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if (interceptor) { |
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return interceptor(target, prop as string); |
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} |
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return target[prop as keyof typeof target]; |
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} |
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}); |
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describe('Cached.ts', () => { |
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beforeEach(() => { |
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jest.resetAllMocks(); |
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registeredMethods.clear(); |
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registeredBeans.clear(); |
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}); |
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it('execute a cached function', async () => { |
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// GIVEN |
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class Class { |
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@Cached() |
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getUUIDCached() { |
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return randomUUID(); |
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} |
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getUUID() { |
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return randomUUID(); |
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} |
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} |
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const bean = createProxy(new Class()); |
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(bean as any)._interceptors = new Map(); |
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registeredBeans.set('Class', bean as any); |
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registeredMethods.set(bean.getUUID, bean as any); |
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registeredMethods.set(bean.getUUIDCached, bean as any); |
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await Executor.execute(); |
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// WHEN |
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const resultNoCache = bean.getUUID(); |
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const resultCache = bean.getUUIDCached(); |
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// THEN |
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expect(bean.getUUID()).not.toStrictEqual(resultNoCache); |
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expect(bean.getUUIDCached()).toStrictEqual(resultCache); |
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}); |
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it('execute an async cached function', async () => { |
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// GIVEN |
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class Class { |
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@Cached() |
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async getUUIDCached() { |
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return randomUUID(); |
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} |
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async getUUID() { |
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return randomUUID(); |
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} |
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} |
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const bean = createProxy(new Class()); |
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(bean as any)._interceptors = new Map(); |
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registeredBeans.set('Class', bean as any); |
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registeredMethods.set(bean.getUUID, bean as any); |
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registeredMethods.set(bean.getUUIDCached, bean as any); |
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await Executor.execute(); |
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// WHEN |
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const resultNoCache = await bean.getUUID(); |
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const resultCache = await bean.getUUIDCached(); |
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// THEN |
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expect(await bean.getUUID()).not.toStrictEqual(resultNoCache); |
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expect(await bean.getUUIDCached()).toStrictEqual(resultCache); |
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}); |
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it('caches a function by its arguments', async () => { |
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// GIVEN |
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class Class { |
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@Cached() |
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getUUIDCached(anArgument: string) { |
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return `${randomUUID()}/${anArgument}`; |
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} |
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} |
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const bean = createProxy(new Class()); |
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(bean as any)._interceptors = new Map(); |
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registeredBeans.set('Class', bean as any); |
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registeredMethods.set(bean.getUUIDCached, bean as any); |
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await Executor.execute(); |
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// WHEN |
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const resultCache = bean.getUUIDCached('first'); |
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// THEN |
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expect(bean.getUUIDCached('second')).not.toStrictEqual(resultCache); |
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expect(bean.getUUIDCached('first')).toStrictEqual(resultCache); |
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}); |
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it('caches an async function by its arguments', async () => { |
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// GIVEN |
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class Class { |
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@Cached() |
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async getUUIDCached(anArgument: string) { |
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return `${randomUUID()}/${anArgument}`; |
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} |
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} |
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const bean = createProxy(new Class()); |
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(bean as any)._interceptors = new Map(); |
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registeredBeans.set('Class', bean as any); |
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registeredMethods.set(bean.getUUIDCached, bean as any); |
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await Executor.execute(); |
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// WHEN |
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const resultCache = await bean.getUUIDCached('first'); |
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// THEN |
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expect(await bean.getUUIDCached('second')).not.toStrictEqual(resultCache); |
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expect(await bean.getUUIDCached('first')).toStrictEqual(resultCache); |
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}); |
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it('invalidates a cache when expired', async () => { |
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// GIVEN |
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class Class { |
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@Cached() |
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getUUIDCached() { |
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return randomUUID(); |
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} |
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} |
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const bean = createProxy(new Class()); |
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(bean as any)._interceptors = new Map(); |
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registeredBeans.set('Class', bean as any); |
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registeredMethods.set(bean.getUUIDCached, bean as any); |
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await Executor.execute(); |
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// WHEN |
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const resultCache = bean.getUUIDCached(); |
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expect(bean.getUUIDCached()).toStrictEqual(resultCache); |
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150
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jest.useFakeTimers().setSystemTime(Date.now() + 60_001); |
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151
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152
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// THEN |
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expect(bean.getUUIDCached()).not.toStrictEqual(resultCache); |
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}); |
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}); |
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spaghiajoeojo /
express-beans
