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