45 lines
937 B
JavaScript
45 lines
937 B
JavaScript
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const memoizer = require('./..');
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const assert = require('chai').assert;
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describe('lru-memoizer (clone)', () => {
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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({
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load: (key, callback) => {
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loadTimes++;
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callback(null, { 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', (err, r1) => {
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assert.isNull(err);
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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', (err, r2) => {
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assert.isNull(err);
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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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});
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});
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