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lru-memoizer
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Filename :
lru-memoizer.sync.freeze.js
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const memoizer = require('./..'); const assert = require('chai').assert; describe('lru-memoizer sync (freeze)', () => { describe('call', () => { let loadTimes = 0, memoized; beforeEach(() => { loadTimes = 0; memoized = memoizer.sync({ load: (key) => { loadTimes++; return { foo: key , buffer: Buffer.from('1234') }; }, hash: (key) => { return key; }, freeze: true }); }); it('should return a freeze every time with the same cached structure', () => { const r1 = memoized('bar'); assert.strictEqual(loadTimes, 1); assert.equal(r1.foo, 'bar'); assert.isFrozen(r1); const r2 = memoized('bar'); assert.strictEqual(loadTimes, 1); assert.equal(r2.foo, 'bar'); assert.isFrozen(r2); }); }); describe('Promise', () => { let loadTimes = 0, memoized; beforeEach(() => { loadTimes = 0; memoized = memoizer.sync({ load: (key) => { loadTimes++; return Promise.resolve({ foo: key, buffer: Buffer.from('1234') }); }, hash: (key) => { return key; }, freeze: true }); }); it('should return a freeze every time with the same cached structure', (done) => { memoized('bar').then(r1 => { assert.strictEqual(loadTimes, 1); assert.equal(r1.foo, 'bar'); assert.isFrozen(r1); memoized('bar').then(r2 => { assert.strictEqual(loadTimes, 1); assert.equal(r2.foo, 'bar'); assert.isFrozen(r2); done(); }); }) .catch(done); }); }); });