test.js

var os = require('os');
var path = require('path');
var level = require('level');
var session = require('express-session');
var levelSession = require('./');
var test = require('tape');

var tmpDir = path.join(os.tmpDir(), 'level-session-' + Math.random());
var Store = levelSession(session);

test('life cycle', function(t) {
	var leveldb = level(tmpDir);
	var store = new Store(leveldb);
	var obj = { cookie: { maxAge: 2000 }, name: 'tj' };

	store.set('123', obj, assertSet);

	function assertSet(err) {
		t.notOk(err, 'should not have error on SET');
		store.get('123', assertGet);  // continue Get test
	}

	function assertGet(err, val) {
		t.notOk(err, 'should not have error on GET');
		t.deepEqual(val, obj, 'stored value should be correct');
		store.destroy('123', assertDestroy);  // continue destroy test
	}

	function assertDestroy(err) {
		t.notOk(err, 'should not have error on DESTROY');

		store.get('123', function(err, val) {  // asert '123' is NotFound
			t.notOk(err);
			t.equal(val, null, 'sessionId should not be found anymore');

			store.db.close(t.end);  // close leveldb and end test
		});
	}
});

test('options: prefix', function(t) {
	var leveldb = level(tmpDir);
	var store = new Store(leveldb, {prefix: 'prefix!'});
	var obj = { cookie: { maxAge: 2000 }, name: 'tj' };

	store.set('123', obj, assertSet);

	function assertSet(err) {
		t.notOk(err);
		store.get('123', assertGet);  // continue Get test
	}

	function assertGet(err, val) {
		t.notOk(err);
		t.deepEqual(val, obj, 'data should be retrievable');

		leveldb.get('prefix!123', function(err, val) {
			t.notOk(err);
			t.deepEqual(JSON.parse(val), obj, 'data should be stored with prefix set');

			store.db.close(t.end);  // close leveldb and end test
		});
	}
});

test('options:levelTTLOptions', function(t) {
	var leveldb = level(tmpDir);
	var store = new Store(leveldb, {levelTTLOptions: {checkFrequency: 15000}});

	t.equal(store.db._ttl.options.checkFrequency, 15000,
		'checkFrequency options should be set to levelTTL instance');
	store.db.close(t.end);  // close leveldb and end test
});

test('maxAge ttl', function(t) {
	var leveldb = level(tmpDir);
	var store = new Store(leveldb, {levelTTLOptions: {checkFrequency: 100}});
	var obj = { cookie: { maxAge: 2000 }, name: 'tj' };

	store.set('123', obj, t.notOk);

	setTimeout(function() {
		store.db.get('123', function(err, data) {
			t.notOk(err);
			t.deepEqual(data, obj, 'it should not expire yet');
		});
	}, 1000);

	setTimeout(function() {
		store.db.get('123', function(err/*, data*/) {
			t.ok(err.notFound, 'it should be expired');
			t.end();
		});
	}, 3000);
});