cache-storage/test/browser/tests/Storage/Sync/BrowserLocalStorage.coffee

[ABANDONED] Advanced cache storage for node js

Cache = require 'cache-storage'
BrowserLocalStorage = require 'cache-storage/Storage/BrowserLocalSyncStorage'

cache = null

originalSimqVersion = window.require.version

describe 'BrowserLocalsyncStorage', ->

	beforeEach( ->
		cache = new Cache(new BrowserLocalStorage)
	)

	afterEach( ->
		localStorage.clear()
	)

	describe 'saving/loading', ->

		it 'should save true and load it', ->
			cache.save 'true', true
			expect(cache.load 'true').to.be.true

		it 'should return null if item not exists', ->
			expect(cache.load 'true').to.be.null

		it 'should save true and delete it', ->
			cache.save 'true', true
			cache.remove 'true'
			expect(cache.load 'true').to.be.null

		it 'should save true to cache from fallback function in load', ->
			val = cache.load 'true', -> return true
			expect(val).to.be.true

	describe 'expiration', ->

		it 'should remove all items with tag "article"', ->
			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'
			expect(cache.load 'three').to.be.null

		it 'should expire "true" value after 1 second"', (done) ->
			cache.save 'true', true, {expire: {seconds: 1}}
			setTimeout( ->
				expect(cache.load 'true').to.be.null
				done()
			, 1100)

		it 'should expire "true" value after "first" value expire', ->
			cache.save 'first', 'first'
			cache.save 'true', true, {items: ['first']}
			cache.remove 'first'
			expect(cache.load 'true').to.be.null

		it 'should expire all items with priority bellow 50', ->
			cache.save 'one', 'one', {priority: 100}
			cache.save 'two', 'two', {priority: 10}
			cache.clean {priority: 50}
			expect(cache.load 'one').to.be.equal('one')
			expect(cache.load 'two').to.be.null

		it 'should remove all items from cache', ->
			cache.save 'one', 'one'
			cache.save 'two', 'two'
			cache.clean 'all'
			expect(cache.load 'one').to.be.null
			expect(cache.load 'two').to.be.null

		describe 'files', ->

			afterEach( ->
				window.require.simq = true
				window.require.version = originalSimqVersion
			)

			it 'should throw an error for environments other than simq', ->
				delete window.require.simq
				expect( -> cache.save 'true', true, {files: []}).to.throw(Error, 'Files meta information can be used in browser only with simq.')

			it 'should throw an error if simq is old', ->
				window.require.version = '5.0.4'
				expect( -> cache.save 'true', true, {files: []}).to.throw(Error, 'File method information is supported only with simq@5.1.0 and later.')

			it 'should throw an error if simq is really very old', ->
				delete window.require.version
				expect( -> cache.save 'true', true, {files: []}).to.throw(Error, 'File method information is supported only with simq@5.1.0 and later.')

			it 'should expire data after file is changed', ->
				cache.save 'true', true, {files: [__filename]}
				changeFile(__filename)
				expect(cache.load 'true').to.be.null