cache-storage/test/node/lib/Storage/Sync/FileStorage.js

[ABANDONED] Advanced cache storage for node js

// Generated by CoffeeScript 1.6.3
(function() {
  var Cache, FileStorage, cache, expect, fs, path;

  expect = require('chai').expect;

  path = require('path');

  Cache = require('../../../../../lib/Cache');

  FileStorage = require('../../../../../Storage/FileSyncStorage');

  fs = null;

  cache = null;

  describe('FileSyncStorage', function() {
    beforeEach(function() {
      return fs = Cache.mockFs({
        'temp': {},
        'file': ''
      });
    });
    afterEach(function() {
      return Cache.restoreFs();
    });
    describe('#constructor()', function() {
      it('should throw an error if path does not exists', function() {
        return expect(function() {
          return new FileStorage('./unknown/path');
        }).to["throw"]();
      });
      return it('should throw an error if path is not directory', function() {
        return expect(function() {
          return new FileStorage('/file');
        }).to["throw"]();
      });
    });
    describe('saving/loading', function() {
      beforeEach(function() {
        return cache = new Cache(new FileStorage('/temp'), 'test');
      });
      afterEach(function() {
        if (fs.existsSync('/temp/__test.json')) {
          return fs.unlinkSync('/temp/__test.json');
        }
      });
      it('should save true and load it', function() {
        cache.save('true', true);
        return expect(cache.load('true')).to.be["true"];
      });
      it('should return null if item not exists', function() {
        return expect(cache.load('true')).to.be["null"];
      });
      it('should save true and delete it', function() {
        cache.save('true', true);
        cache.remove('true');
        return expect(cache.load('true')).to.be["null"];
      });
      return it('should save true to cache from fallback function in load', function() {
        var val;
        val = cache.load('true', function() {
          return true;
        });
        return expect(val).to.be["true"];
      });
    });
    return describe('expiration', function() {
      beforeEach(function() {
        return cache = new Cache(new FileStorage('/temp'), 'test');
      });
      afterEach(function() {
        if (fs.existsSync('/temp/__test.json')) {
          return fs.unlinkSync('/temp/__test.json');
        }
      });
      it('should expire "true" value after file is changed', function(done) {
        cache.save('true', true, {
          files: ['/file']
        });
        return setTimeout(function() {
          fs.writeFileSync('/file', '');
          expect(cache.load('true')).to.be["null"];
          return done();
        }, 100);
      });
      it('should remove all items with tag "article"', function() {
        cache.save('one', 'one', {
          tags: ['article']
        });
        cache.save('two', 'two', {
          tags: ['category']
        });
        cache.save('three', 'three', {
          tags: ['article']
        });
        cache.clean({
          tags: ['article']
        });
        expect(cache.load('one')).to.be["null"];
        expect(cache.load('two')).to.be.equal('two');
        return expect(cache.load('three')).to.be["null"];
      });
      it('should expire "true" value after 1 second"', function(done) {
        cache.save('true', true, {
          expire: {
            seconds: 1
          }
        });
        return setTimeout(function() {
          expect(cache.load('true')).to.be["null"];
          return done();
        }, 1100);
      });
      it('should expire "true" value after "first" value expire', function() {
        cache.save('first', 'first');
        cache.save('true', true, {
          items: ['first']
        });
        cache.remove('first');
        return expect(cache.load('true')).to.be["null"];
      });
      it('should expire all items with priority bellow 50', function() {
        cache.save('one', 'one', {
          priority: 100
        });
        cache.save('two', 'two', {
          priority: 10
        });
        cache.clean({
          priority: 50
        });
        expect(cache.load('one')).to.be.equal('one');
        return expect(cache.load('two')).to.be["null"];
      });
      return it('should remove all items from cache', function() {
        cache.save('one', 'one');
        cache.save('two', 'two');
        cache.clean('all');
        expect(cache.load('one')).to.be["null"];
        return expect(cache.load('two')).to.be["null"];
      });
    });
  });

}).call(this);