'use strict'; var should = require('should'); var helpers = require('./_helpers'); var Promise = require('bluebird'); module.exports = function(dataSourceFactory, connectorCapabilities) { var TTL_PRECISION = connectorCapabilities.ttlPrecision; describe('get/set', function() { var CacheItem; beforeEach(function unpackContext() { CacheItem = helpers.givenCacheItem(dataSourceFactory); }); it('works for string values - Callback API', function(done) { CacheItem.set('a-key', 'a-value', function(err) { if (err) return done(err); CacheItem.get('a-key', function(err, value) { if (err) return done(err); should.equal(value, 'a-value'); done(); }); }); }); it('works for string values - Promise API', function() { return CacheItem.set('a-key', 'a-value') .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { should.equal(value, 'a-value'); }); }); it('works for Object values', function() { return CacheItem.set('a-key', {a: 1, b: 2}) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { value.should.eql({a: 1, b: 2}); }); }); it('works for Buffer values', function() { return CacheItem.set('a-key', new Buffer([1, 2, 3])) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { value.should.eql(new Buffer([1, 2, 3])); }); }); it('works for Date values', function() { return CacheItem.set('a-key', new Date('2016-08-03T11:53:03.470Z')) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { value.should.be.instanceOf(Date); value.toISOString().should.equal('2016-08-03T11:53:03.470Z'); }); }); it('works for Number values - integers', function() { return CacheItem.set('a-key', 12345) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { value.should.equal(12345); }); }); it('works for Number values - floats', function() { return CacheItem.set('a-key', 12.345) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { value.should.equal(12.345); }); }); it('works for Boolean values', function() { return CacheItem.set('a-key', false) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { value.should.equal(false); }); }); it('honours options.ttl', function() { return Promise.resolve(CacheItem.set('a-key', 'a-value', {ttl: TTL_PRECISION})) .delay(2 * TTL_PRECISION) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { should.equal(value, null); }); }); describe('get', function() { it('returns "null" when key does not exist', function() { return CacheItem.get('key-does-not-exist') .then(function(value) { should.equal(value, null); }); }); }); describe('set', function() { it('converts numeric options arg to options.ttl', function() { return Promise.resolve(CacheItem.set('a-key', 'a-value', TTL_PRECISION)) .delay(2 * TTL_PRECISION) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { should.equal(value, null); }); }); it('resets TTL timer', function() { return Promise.resolve(CacheItem.set('a-key', 'a-value', {ttl: TTL_PRECISION})) .then(function() { return CacheItem.set('a-key', 'another-value'); // no TTL }) .delay(2 * TTL_PRECISION) .then(function() { return CacheItem.get('a-key'); }) .then(function(value) { should.equal(value, 'another-value'); }); }); }); }); };