Add LiveQuery

spec/ParseLiveQueryServer.spec.js

@@ -0,0 +1,962 @@
+var Parse = require('parse/node');
+var ParseLiveQueryServer = require('../src/LiveQuery/ParseLiveQueryServer').ParseLiveQueryServer;
+
+// Global mock info
+var queryHashValue = 'hash';
+var testUserId = 'userId';
+var testClassName = 'TestObject';
+
+describe('ParseLiveQueryServer', function() {
+
+  beforeEach(function(done) {
+    // Mock ParseWebSocketServer
+    var mockParseWebSocketServer = jasmine.createSpy('ParseWebSocketServer');
+    jasmine.mockLibrary('../src/LiveQuery/ParseWebSocketServer', 'ParseWebSocketServer', mockParseWebSocketServer);
+    // Mock Client
+    var mockClient = function() {
+      this.pushConnect = jasmine.createSpy('pushConnect');
+      this.pushSubscribe = jasmine.createSpy('pushSubscribe');
+      this.pushUnsubscribe = jasmine.createSpy('pushUnsubscribe');
+      this.pushDelete = jasmine.createSpy('pushDelete');
+      this.pushCreate = jasmine.createSpy('pushCreate');
+      this.pushEnter = jasmine.createSpy('pushEnter');
+      this.pushUpdate = jasmine.createSpy('pushUpdate');
+      this.pushLeave = jasmine.createSpy('pushLeave');
+      this.addSubscriptionInfo = jasmine.createSpy('addSubscriptionInfo');
+      this.getSubscriptionInfo = jasmine.createSpy('getSubscriptionInfo');
+      this.deleteSubscriptionInfo = jasmine.createSpy('deleteSubscriptionInfo');
+    }
+    mockClient.pushError = jasmine.createSpy('pushError');
+    jasmine.mockLibrary('../src/LiveQuery/Client', 'Client', mockClient);
+    // Mock Subscription
+    var mockSubscriotion = function() {
+      this.addClientSubscription = jasmine.createSpy('addClientSubscription');
+      this.deleteClientSubscription = jasmine.createSpy('deleteClientSubscription');
+    }
+    jasmine.mockLibrary('../src/LiveQuery/Subscription', 'Subscription', mockSubscriotion);
+    // Mock queryHash
+    var mockQueryHash = jasmine.createSpy('matchesQuery').and.returnValue(queryHashValue);
+    jasmine.mockLibrary('../src/LiveQuery/QueryTools', 'queryHash', mockQueryHash);
+    // Mock matchesQuery
+    var mockMatchesQuery = jasmine.createSpy('matchesQuery').and.returnValue(true);
+    jasmine.mockLibrary('../src/LiveQuery/QueryTools', 'matchesQuery', mockMatchesQuery);
+    // Mock tv4
+    var mockValidate = function() {
+      return true;
+    }
+    jasmine.mockLibrary('tv4', 'validate', mockValidate);
+    // Mock ParsePubSub
+    var mockParsePubSub = {
+      createPublisher: function() {
+        return {
+          publish: jasmine.createSpy('publish'),
+          on: jasmine.createSpy('on')
+        }
+      },
+      createSubscriber: function() {
+        return {
+          subscribe: jasmine.createSpy('subscribe'),
+          on: jasmine.createSpy('on')
+        }
+      }
+    };
+    jasmine.mockLibrary('../src/LiveQuery/ParsePubSub', 'ParsePubSub', mockParsePubSub);
+    // Make mock SessionTokenCache
+    var mockSessionTokenCache = function(){
+      this.getUserId = function(sessionToken){
+        if (typeof sessionToken === 'undefined') {
+          return Parse.Promise.as(undefined);
+        }
+        if (sessionToken === null) {
+          return Parse.Promise.error();
+        }
+        return Parse.Promise.as(testUserId);
+      };
+    };
+    jasmine.mockLibrary('../src/LiveQuery/SessionTokenCache', 'SessionTokenCache', mockSessionTokenCache);
+    done();
+  });
+
+  it('can be initialized', function() {
+    var httpServer = {};
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, httpServer);
+
+    expect(parseLiveQueryServer.clientId).toBe(0);
+    expect(parseLiveQueryServer.clients.size).toBe(0);
+    expect(parseLiveQueryServer.subscriptions.size).toBe(0);
+  });
+
+  it('can handle connect command', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var parseWebSocket = {
+      clientId: -1
+    };
+    parseLiveQueryServer._validateKeys = jasmine.createSpy('validateKeys').and.returnValue(true);
+    parseLiveQueryServer._handleConnect(parseWebSocket);
+
+    expect(parseLiveQueryServer.clientId).toBe(1);
+    expect(parseWebSocket.clientId).toBe(0);
+    var client = parseLiveQueryServer.clients.get(0);
+    expect(client).not.toBeNull();
+    // Make sure we send connect response to the client
+    expect(client.pushConnect).toHaveBeenCalled();
+  });
+
+  it('can handle subscribe command without clientId', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var incompleteParseConn = {
+    };
+    parseLiveQueryServer._handleSubscribe(incompleteParseConn, {});
+
+    var Client = require('../src/LiveQuery/Client').Client;
+    expect(Client.pushError).toHaveBeenCalled();
+  });
+
+  it('can handle subscribe command with new query', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Handle mock subscription
+    var parseWebSocket = {
+      clientId: clientId
+    };
+    var query = {
+      className: 'test',
+      where: {
+        key: 'value'
+      },
+      fields: [ 'test' ]
+    }
+    var requestId = 2;
+    var request = {
+      query: query,
+      requestId: requestId,
+      sessionToken: 'sessionToken'
+    }
+    parseLiveQueryServer._handleSubscribe(parseWebSocket, request);
+
+    // Make sure we add the subscription to the server
+    var subscriptions = parseLiveQueryServer.subscriptions;
+    expect(subscriptions.size).toBe(1);
+    expect(subscriptions.get(query.className)).not.toBeNull();
+    var classSubscriptions = subscriptions.get(query.className);
+    expect(classSubscriptions.size).toBe(1);
+    expect(classSubscriptions.get('hash')).not.toBeNull();
+    // TODO(check subscription constructor to verify we pass the right argument)
+    // Make sure we add clientInfo to the subscription
+    var subscription = classSubscriptions.get('hash');
+    expect(subscription.addClientSubscription).toHaveBeenCalledWith(clientId, requestId);
+    // Make sure we add subscriptionInfo to the client
+    var args = client.addSubscriptionInfo.calls.first().args;
+    expect(args[0]).toBe(requestId);
+    expect(args[1].fields).toBe(query.fields);
+    expect(args[1].sessionToken).toBe(request.sessionToken);
+    // Make sure we send subscribe response to the client
+    expect(client.pushSubscribe).toHaveBeenCalledWith(requestId);
+  });
+
+  it('can handle subscribe command with existing query', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Add two mock clients
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    var clientIdAgain = 2;
+    var clientAgain = addMockClient(parseLiveQueryServer, clientIdAgain);
+    // Add subscription for mock client 1
+    var parseWebSocket = {
+      clientId: clientId
+    };
+    var requestId = 2;
+    var query = {
+      className: 'test',
+      where: {
+        key: 'value'
+      },
+      fields: [ 'test' ]
+    }
+    addMockSubscription(parseLiveQueryServer, clientId, requestId, parseWebSocket, query);
+    // Add subscription for mock client 2
+    var parseWebSocketAgain = {
+      clientId: clientIdAgain
+    };
+    var queryAgain = {
+      className: 'test',
+      where: {
+        key: 'value'
+      },
+      fields: [ 'testAgain' ]
+    }
+    var requestIdAgain = 1;
+    addMockSubscription(parseLiveQueryServer, clientIdAgain, requestIdAgain, parseWebSocketAgain, queryAgain);
+
+    // Make sure we only have one subscription
+    var subscriptions = parseLiveQueryServer.subscriptions;
+    expect(subscriptions.size).toBe(1);
+    expect(subscriptions.get(query.className)).not.toBeNull();
+    var classSubscriptions = subscriptions.get(query.className);
+    expect(classSubscriptions.size).toBe(1);
+    expect(classSubscriptions.get('hash')).not.toBeNull();
+    // Make sure we add clientInfo to the subscription
+    var subscription = classSubscriptions.get('hash');
+    // Make sure client 2 info has been added
+    var args = subscription.addClientSubscription.calls.mostRecent().args;
+    expect(args).toEqual([clientIdAgain, requestIdAgain]);
+    // Make sure we add subscriptionInfo to the client 2
+    args = clientAgain.addSubscriptionInfo.calls.mostRecent().args;
+    expect(args[0]).toBe(requestIdAgain);
+    expect(args[1].fields).toBe(queryAgain.fields);
+  });
+
+  it('can handle unsubscribe command without clientId', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var incompleteParseConn = {
+    };
+    parseLiveQueryServer._handleUnsubscribe(incompleteParseConn, {});
+
+    var Client = require('../src/LiveQuery/Client').Client;
+    expect(Client.pushError).toHaveBeenCalled();
+  });
+
+  it('can handle unsubscribe command without not existed client', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var parseWebSocket = {
+      clientId: 1
+    };
+    parseLiveQueryServer._handleUnsubscribe(parseWebSocket, {});
+
+    var Client = require('../src/LiveQuery/Client').Client;
+    expect(Client.pushError).toHaveBeenCalled();
+  });
+
+  it('can handle unsubscribe command without not existed query', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Handle unsubscribe command
+    var parseWebSocket = {
+      clientId: 1
+    };
+    parseLiveQueryServer._handleUnsubscribe(parseWebSocket, {});
+
+    var Client = require('../src/LiveQuery/Client').Client;
+    expect(Client.pushError).toHaveBeenCalled();
+  });
+
+  it('can handle unsubscribe command', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Add subscription for mock client
+    var parseWebSocket = {
+      clientId: 1
+    };
+    var requestId = 2;
+    var subscription = addMockSubscription(parseLiveQueryServer, clientId, requestId, parseWebSocket);
+    // Mock client.getSubscriptionInfo
+    var subscriptionInfo = client.addSubscriptionInfo.calls.mostRecent().args[1];
+    client.getSubscriptionInfo = function() {
+      return subscriptionInfo;
+    };
+    // Handle unsubscribe command
+    var requestAgain = {
+      requestId: requestId
+    };
+    parseLiveQueryServer._handleUnsubscribe(parseWebSocket, requestAgain);
+
+    // Make sure we delete subscription from client
+    expect(client.deleteSubscriptionInfo).toHaveBeenCalledWith(requestId);
+    // Make sure we delete client from subscription
+    expect(subscription.deleteClientSubscription).toHaveBeenCalledWith(clientId, requestId);
+    // Make sure we clear subscription in the server
+    var subscriptions = parseLiveQueryServer.subscriptions;
+    expect(subscriptions.size).toBe(0);
+  });
+
+ it('can set connect command message handler for a parseWebSocket', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Register mock connect/subscribe/unsubscribe handler for the server
+    parseLiveQueryServer._handleConnect = jasmine.createSpy('_handleSubscribe');
+    // Make mock parseWebsocket
+    var EventEmitter = require('events');
+    var parseWebSocket = new EventEmitter();
+    // Register message handlers for the parseWebSocket
+    parseLiveQueryServer._onConnect(parseWebSocket);
+
+    // Check connect request
+    var connectRequest = {
+      op: 'connect'
+    };
+    // Trigger message event
+    parseWebSocket.emit('message', connectRequest);
+    // Make sure _handleConnect is called
+    var args = parseLiveQueryServer._handleConnect.calls.mostRecent().args;
+    expect(args[0]).toBe(parseWebSocket);
+  });
+
+  it('can set subscribe command message handler for a parseWebSocket', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Register mock connect/subscribe/unsubscribe handler for the server
+    parseLiveQueryServer._handleSubscribe = jasmine.createSpy('_handleSubscribe');
+    // Make mock parseWebsocket
+    var EventEmitter = require('events');
+    var parseWebSocket = new EventEmitter();
+    // Register message handlers for the parseWebSocket
+    parseLiveQueryServer._onConnect(parseWebSocket);
+
+    // Check subscribe request
+    var subscribeRequest = '{"op":"subscribe"}';
+    // Trigger message event
+    parseWebSocket.emit('message', subscribeRequest);
+    // Make sure _handleSubscribe is called
+    var args = parseLiveQueryServer._handleSubscribe.calls.mostRecent().args;
+    expect(args[0]).toBe(parseWebSocket);
+    expect(JSON.stringify(args[1])).toBe(subscribeRequest);
+  });
+
+  it('can set unsubscribe command message handler for a parseWebSocket', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Register mock connect/subscribe/unsubscribe handler for the server
+    parseLiveQueryServer._handleUnsubscribe = jasmine.createSpy('_handleSubscribe');
+    // Make mock parseWebsocket
+    var EventEmitter = require('events');
+    var parseWebSocket = new EventEmitter();
+    // Register message handlers for the parseWebSocket
+    parseLiveQueryServer._onConnect(parseWebSocket);
+
+    // Check unsubscribe request
+    var unsubscribeRequest = '{"op":"unsubscribe"}';
+    // Trigger message event
+    parseWebSocket.emit('message', unsubscribeRequest);
+    // Make sure _handleUnsubscribe is called
+    var args = parseLiveQueryServer._handleUnsubscribe.calls.mostRecent().args;
+    expect(args[0]).toBe(parseWebSocket);
+    expect(JSON.stringify(args[1])).toBe(unsubscribeRequest);
+  });
+
+  it('can set unknown command message handler for a parseWebSocket', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock parseWebsocket
+    var EventEmitter = require('events');
+    var parseWebSocket = new EventEmitter();
+    // Register message handlers for the parseWebSocket
+    parseLiveQueryServer._onConnect(parseWebSocket);
+
+    // Check unknown request
+    var unknownRequest = '{"op":"unknown"}';
+    // Trigger message event
+    parseWebSocket.emit('message', unknownRequest);
+    var Client = require('../src/LiveQuery/Client').Client;
+    expect(Client.pushError).toHaveBeenCalled();
+  });
+
+  it('can set disconnect command message handler for a parseWebSocket which has not registered to the server', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var EventEmitter = require('events');
+    var parseWebSocket = new EventEmitter();
+    parseWebSocket.clientId = 1;
+    // Register message handlers for the parseWebSocket
+    parseLiveQueryServer._onConnect(parseWebSocket);
+
+    // Make sure we do not crash
+    // Trigger disconnect event
+    parseWebSocket.emit('disconnect');
+  });
+
+  // TODO: Test server can set disconnect command message handler for a parseWebSocket
+
+  it('has no subscription and can handle object delete command', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make deletedParseObject
+    var parseObject = new Parse.Object(testClassName);
+    parseObject._finishFetch({
+      key: 'value',
+      className: testClassName
+    });
+    // Make mock message
+    var message = {
+      currentParseObject: parseObject
+    };
+    // Make sure we do not crash in this case
+    parseLiveQueryServer._onAfterDelete(message, {});
+  });
+
+  it('can handle object delete command which does not match any subscription', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make deletedParseObject
+    var parseObject = new Parse.Object(testClassName);
+    parseObject._finishFetch({
+      key: 'value',
+      className: testClassName
+    });
+    // Make mock message
+    var message = {
+      currentParseObject: parseObject
+    };
+
+    // Add mock client
+    var clientId = 1;
+    addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    var client = parseLiveQueryServer.clients.get(clientId);
+    // Mock _matchesSubscription to return not matching
+    parseLiveQueryServer._matchesSubscription = function() {
+      return false;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return true;
+    };
+    parseLiveQueryServer._onAfterDelete(message);
+
+    // Make sure we do not send command to client
+    expect(client.pushDelete).not.toHaveBeenCalled();
+  });
+
+  it('can handle object delete command which matches some subscriptions', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make deletedParseObject
+    var parseObject = new Parse.Object(testClassName);
+    parseObject._finishFetch({
+      key: 'value',
+      className: testClassName
+    });
+   // Make mock message
+    var message = {
+      currentParseObject: parseObject
+    };
+    // Add mock client
+    var clientId = 1;
+    addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    var client = parseLiveQueryServer.clients.get(clientId);
+    // Mock _matchesSubscription to return matching
+    parseLiveQueryServer._matchesSubscription = function() {
+      return true;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return Parse.Promise.as(true);
+    };
+    parseLiveQueryServer._onAfterDelete(message);
+
+    // Make sure we send command to client, since _matchesACL is async, we have to
+    // wait and check
+    setTimeout(function() {
+      expect(client.pushDelete).toHaveBeenCalled();
+      done();
+    }, jasmine.ASYNC_TEST_WAIT_TIME);
+  });
+
+  it('has no subscription and can handle object save command', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request message
+    var message = generateMockMessage();
+    // Make sure we do not crash in this case
+    parseLiveQueryServer._onAfterSave(message);
+  });
+
+  it('can handle object save command which does not match any subscription', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request message
+    var message = generateMockMessage();
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    // Mock _matchesSubscription to return not matching
+    parseLiveQueryServer._matchesSubscription = function() {
+      return false;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return Parse.Promise.as(true)
+    };
+    // Trigger onAfterSave
+    parseLiveQueryServer._onAfterSave(message);
+
+    // Make sure we do not send command to client
+    setTimeout(function(){
+      expect(client.pushCreate).not.toHaveBeenCalled();
+      expect(client.pushEnter).not.toHaveBeenCalled();
+      expect(client.pushUpdate).not.toHaveBeenCalled();
+      expect(client.pushDelete).not.toHaveBeenCalled();
+      expect(client.pushLeave).not.toHaveBeenCalled();
+      done();
+    }, jasmine.ASYNC_TEST_WAIT_TIME);
+  });
+
+  it('can handle object enter command which matches some subscriptions', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request message
+    var message = generateMockMessage(true);
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    // Mock _matchesSubscription to return matching
+    // In order to mimic a enter, we need original match return false
+    // and the current match return true
+    var counter = 0;
+    parseLiveQueryServer._matchesSubscription = function(parseObject, subscription){
+      if (!parseObject) {
+        return false;
+      }
+      counter += 1;
+      return counter % 2 === 0;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return Parse.Promise.as(true)
+    };
+    parseLiveQueryServer._onAfterSave(message);
+
+    // Make sure we send enter command to client
+    setTimeout(function(){
+      expect(client.pushCreate).not.toHaveBeenCalled();
+      expect(client.pushEnter).toHaveBeenCalled();
+      expect(client.pushUpdate).not.toHaveBeenCalled();
+      expect(client.pushDelete).not.toHaveBeenCalled();
+      expect(client.pushLeave).not.toHaveBeenCalled();
+      done();
+    }, jasmine.ASYNC_TEST_WAIT_TIME);
+  });
+
+  it('can handle object update command which matches some subscriptions', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request message
+    var message = generateMockMessage(true);
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    // Mock _matchesSubscription to return matching
+    parseLiveQueryServer._matchesSubscription = function(parseObject, subscription){
+      if (!parseObject) {
+        return false;
+      }
+      return true;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return Parse.Promise.as(true)
+    };
+    parseLiveQueryServer._onAfterSave(message);
+
+    // Make sure we send update command to client
+    setTimeout(function(){
+      expect(client.pushCreate).not.toHaveBeenCalled();
+      expect(client.pushEnter).not.toHaveBeenCalled();
+      expect(client.pushUpdate).toHaveBeenCalled();
+      expect(client.pushDelete).not.toHaveBeenCalled();
+      expect(client.pushLeave).not.toHaveBeenCalled();
+      done();
+    }, jasmine.ASYNC_TEST_WAIT_TIME);
+  });
+
+  it('can handle object leave command which matches some subscriptions', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request message
+    var message = generateMockMessage(true);
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    // Mock _matchesSubscription to return matching
+    // In order to mimic a leave, we need original match return true
+    // and the current match return false
+    var counter = 0;
+    parseLiveQueryServer._matchesSubscription = function(parseObject, subscription){
+      if (!parseObject) {
+        return false;
+      }
+      counter += 1;
+      return counter % 2 !== 0;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return Parse.Promise.as(true)
+    };
+    parseLiveQueryServer._onAfterSave(message);
+
+    // Make sure we send leave command to client
+    setTimeout(function(){
+      expect(client.pushCreate).not.toHaveBeenCalled();
+      expect(client.pushEnter).not.toHaveBeenCalled();
+      expect(client.pushUpdate).not.toHaveBeenCalled();
+      expect(client.pushDelete).not.toHaveBeenCalled();
+      expect(client.pushLeave).toHaveBeenCalled();
+      done();
+    }, jasmine.ASYNC_TEST_WAIT_TIME);
+  });
+
+  it('can handle object create command which matches some subscriptions', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request message
+    var message = generateMockMessage();
+    // Add mock client
+    var clientId = 1;
+    var client = addMockClient(parseLiveQueryServer, clientId);
+    // Add mock subscription
+    var requestId = 2;
+    addMockSubscription(parseLiveQueryServer, clientId, requestId);
+    // Mock _matchesSubscription to return matching
+    parseLiveQueryServer._matchesSubscription = function(parseObject, subscription){
+      if (!parseObject) {
+        return false;
+      }
+      return true;
+    };
+    parseLiveQueryServer._matchesACL = function() {
+      return Parse.Promise.as(true)
+    };
+    parseLiveQueryServer._onAfterSave(message);
+
+    // Make sure we send create command to client
+    setTimeout(function(){
+      expect(client.pushCreate).toHaveBeenCalled();
+      expect(client.pushEnter).not.toHaveBeenCalled();
+      expect(client.pushUpdate).not.toHaveBeenCalled();
+      expect(client.pushDelete).not.toHaveBeenCalled();
+      expect(client.pushLeave).not.toHaveBeenCalled();
+      done();
+    }, jasmine.ASYNC_TEST_WAIT_TIME);
+  });
+
+  it('can match subscription for null or undefined parse object', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock subscription
+    var subscription = {
+      match: jasmine.createSpy('match')
+    }
+
+    expect(parseLiveQueryServer._matchesSubscription(null, subscription)).toBe(false);
+    expect(parseLiveQueryServer._matchesSubscription(undefined, subscription)).toBe(false);
+    // Make sure subscription.match is not called
+    expect(subscription.match).not.toHaveBeenCalled();
+  });
+
+  it('can match subscription', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock subscription
+    var subscription = {
+      query: {}
+    }
+    var parseObject = {};
+    expect(parseLiveQueryServer._matchesSubscription(parseObject, subscription)).toBe(true);
+    // Make sure matchesQuery is called
+    var matchesQuery = require('../src/LiveQuery/QueryTools').matchesQuery;
+    expect(matchesQuery).toHaveBeenCalledWith(parseObject, subscription.query);
+  });
+
+  it('can inflate parse object', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    // Make mock request
+    var objectJSON = {
+      "className":"testClassName",
+      "createdAt":"2015-12-22T01:51:12.955Z",
+      "key":"value",
+      "objectId":"BfwxBCz6yW",
+      "updatedAt":"2016-01-05T00:46:45.659Z"
+    };
+    var originalObjectJSON = {
+      "className":"testClassName",
+      "createdAt":"2015-12-22T01:51:12.955Z",
+      "key":"originalValue",
+      "objectId":"BfwxBCz6yW",
+      "updatedAt":"2016-01-05T00:46:45.659Z"
+    };
+    var message = {
+      currentParseObject: objectJSON,
+      originalParseObject: originalObjectJSON
+    };
+    // Inflate the object
+    parseLiveQueryServer._inflateParseObject(message);
+
+    // Verify object
+    var object = message.currentParseObject;
+    expect(object instanceof Parse.Object).toBeTruthy();
+    expect(object.get('key')).toEqual('value');
+    expect(object.className).toEqual('testClassName');
+    expect(object.id).toBe('BfwxBCz6yW');
+    expect(object.createdAt).not.toBeUndefined();
+    expect(object.updatedAt).not.toBeUndefined();
+    // Verify original object
+    var originalObject = message.originalParseObject;
+    expect(originalObject instanceof Parse.Object).toBeTruthy();
+    expect(originalObject.get('key')).toEqual('originalValue');
+    expect(originalObject.className).toEqual('testClassName');
+    expect(originalObject.id).toBe('BfwxBCz6yW');
+    expect(originalObject.createdAt).not.toBeUndefined();
+    expect(originalObject.updatedAt).not.toBeUndefined();
+  });
+
+  it('can match undefined ACL', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var client = {};
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(undefined, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(true);
+      done();
+    });
+  });
+
+  it('can match ACL with none exist requestId', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    var client = {
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue(undefined)
+    };
+    var requestId = 0;
+
+    var isChecked = false;
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(false);
+      done();
+    });
+  });
+
+  it('can match ACL with public read access', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    acl.setPublicReadAccess(true);
+    var client = {
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue({
+        sessionToken: 'sessionToken'
+      })
+    };
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(true);
+      done();
+    });
+  });
+
+  it('can match ACL with valid subscription sessionToken', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    acl.setReadAccess(testUserId, true);
+    var client = {
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue({
+        sessionToken: 'sessionToken'
+      })
+    };
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(true);
+      done();
+    });
+  });
+
+  it('can match ACL with valid client sessionToken', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    acl.setReadAccess(testUserId, true);
+    // Mock sessionTokenCache will return false when sessionToken is undefined
+    var client = {
+      sessionToken: 'sessionToken',
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue({
+        sessionToken: undefined
+      })
+    };
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(true);
+      done();
+    });
+  });
+
+  it('can match ACL with invalid subscription and client sessionToken', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    acl.setReadAccess(testUserId, true);
+    // Mock sessionTokenCache will return false when sessionToken is undefined
+    var client = {
+      sessionToken: undefined,
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue({
+        sessionToken: undefined
+      })
+    };
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(false);
+      done();
+    });
+  });
+
+  it('can match ACL with subscription sessionToken checking error', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    acl.setReadAccess(testUserId, true);
+    // Mock sessionTokenCache will return error when sessionToken is null, this is just
+    // the behaviour of our mock sessionTokenCache, not real sessionTokenCache
+    var client = {
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue({
+        sessionToken: null
+      })
+    };
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(false);
+      done();
+    });
+  });
+
+  it('can match ACL with client sessionToken checking error', function(done) {
+    var parseLiveQueryServer = new ParseLiveQueryServer(10, 10, {});
+    var acl = new Parse.ACL();
+    acl.setReadAccess(testUserId, true);
+    // Mock sessionTokenCache will return error when sessionToken is null
+    var client = {
+      sessionToken: null,
+      getSubscriptionInfo: jasmine.createSpy('getSubscriptionInfo').and.returnValue({
+        sessionToken: null
+      })
+    };
+    var requestId = 0;
+
+    parseLiveQueryServer._matchesACL(acl, client, requestId).then(function(isMatched) {
+      expect(isMatched).toBe(false);
+      done();
+    });
+  });
+
+  it('can validate key when valid key is provided', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer({}, {
+      keyPairs: {
+        clientKey: 'test'
+      }
+    });
+    var request = {
+      clientKey: 'test'
+    }
+
+    expect(parseLiveQueryServer._validateKeys(request, parseLiveQueryServer.keyPairs)).toBeTruthy();
+  });
+
+  it('can validate key when invalid key is provided', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer({}, {
+      keyPairs: {
+        clientKey: 'test'
+      }
+    });
+    var request = {
+      clientKey: 'error'
+    }
+
+    expect(parseLiveQueryServer._validateKeys(request, parseLiveQueryServer.keyPairs)).not.toBeTruthy();
+  });
+
+  it('can validate key when key is not provided', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer({}, {
+      keyPairs: {
+        clientKey: 'test'
+      }
+    });
+    var request = {
+    }
+
+    expect(parseLiveQueryServer._validateKeys(request, parseLiveQueryServer.keyPairs)).not.toBeTruthy();
+  });
+
+  it('can validate key when validKerPairs is empty', function() {
+    var parseLiveQueryServer = new ParseLiveQueryServer({}, {});
+    var request = {
+    }
+
+    expect(parseLiveQueryServer._validateKeys(request, parseLiveQueryServer.keyPairs)).toBeTruthy();
+  });
+
+  afterEach(function(){
+    jasmine.restoreLibrary('../src/LiveQuery/ParseWebSocketServer', 'ParseWebSocketServer');
+    jasmine.restoreLibrary('../src/LiveQuery/Client', 'Client');
+    jasmine.restoreLibrary('../src/LiveQuery/Subscription', 'Subscription');
+    jasmine.restoreLibrary('../src/LiveQuery/QueryTools', 'queryHash');
+    jasmine.restoreLibrary('../src/LiveQuery/QueryTools', 'matchesQuery');
+    jasmine.restoreLibrary('tv4', 'validate');
+    jasmine.restoreLibrary('../src/LiveQuery/ParsePubSub', 'ParsePubSub');
+    jasmine.restoreLibrary('../src/LiveQuery/SessionTokenCache', 'SessionTokenCache');
+  });
+
+  // Helper functions to add mock client and subscription to a liveQueryServer
+  function addMockClient(parseLiveQueryServer, clientId) {
+    var Client = require('../src/LiveQuery/Client').Client;
+    var client = new Client(clientId, {});
+    parseLiveQueryServer.clients.set(clientId, client);
+    return client;
+  }
+
+  function addMockSubscription(parseLiveQueryServer, clientId, requestId, parseWebSocket, query) {
+    // If parseWebSocket is null, we use the default one
+    if (!parseWebSocket) {
+      var EventEmitter = require('events');
+      parseWebSocket = new EventEmitter();
+    }
+    parseWebSocket.clientId = clientId;
+    // If query is null, we use the default one
+    if (!query) {
+      query = {
+        className: testClassName,
+        where: {
+          key: 'value'
+        },
+        fields: [ 'test' ]
+      };
+    }
+    var request = {
+      query: query,
+      requestId: requestId,
+      sessionToken: 'sessionToken'
+    };
+    parseLiveQueryServer._handleSubscribe(parseWebSocket, request);
+
+    // Make mock subscription
+    var subscription = parseLiveQueryServer.subscriptions.get(query.className).get(queryHashValue);
+    subscription.hasSubscribingClient = function() {
+      return false;
+    }
+    subscription.className = query.className;
+    subscription.hash = queryHashValue;
+    if (subscription.clientRequestIds && subscription.clientRequestIds.has(clientId)) {
+      subscription.clientRequestIds.get(clientId).push(requestId);
+    } else {
+      subscription.clientRequestIds = new Map([[clientId, [requestId]]]);
+    }
+    return subscription;
+  }
+
+  // Helper functiosn to generate request message
+  function generateMockMessage(hasOriginalParseObject) {
+    var parseObject = new Parse.Object(testClassName);
+    parseObject._finishFetch({
+      key: 'value',
+      className: testClassName
+    });
+    var message = {
+      currentParseObject: parseObject
+    };
+    if (hasOriginalParseObject) {
+      var originalParseObject = new Parse.Object(testClassName);
+      originalParseObject._finishFetch({
+        key: 'originalValue',
+        className: testClassName
+      });
+      message.originalParseObject = originalParseObject;
+    }
+    return message;
+  }
+});