@deepstream/client
Version:
the javascript client for deepstreamIO
376 lines (375 loc) • 14.6 kB
JavaScript
;
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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var __generator = (this && this.__generator) || function (thisArg, body) {
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Object.defineProperty(exports, "__esModule", { value: true });
var chai_1 = require("chai");
var sinon = require("sinon");
var mocks_1 = require("../test/mocks");
var constants_1 = require("../constants");
var client_options_1 = require("../client-options");
var event_handler_1 = require("./event-handler");
var utils_1 = require("../util/utils");
describe('event handler', function () {
var services;
var listener;
var eventHandler;
var handle;
var spy;
var name = 'myEvent';
beforeEach(function () {
services = (0, mocks_1.getServicesMock)();
listener = (0, mocks_1.getListenerMock)();
eventHandler = new event_handler_1.EventHandler(services, __assign(__assign({}, client_options_1.DefaultOptions), { subscriptionInterval: 0 }), listener.listener);
handle = services.getHandle();
spy = sinon.spy();
});
afterEach(function () {
services.verify();
listener.listenerMock.verify();
});
it('gets events names', function () {
eventHandler.subscribe('event1', spy);
eventHandler.subscribe('event2', spy);
(0, chai_1.expect)(eventHandler.eventNames()).to.deep.equal(['event1', 'event2']);
eventHandler.unsubscribe('event2', spy);
(0, chai_1.expect)(eventHandler.eventNames()).to.deep.equal(['event1']);
});
it('validates parameters on subscribe, unsubscribe and emit', function () {
(0, chai_1.expect)(eventHandler.subscribe.bind(eventHandler, '', function () { })).to.throw();
(0, chai_1.expect)(eventHandler.unsubscribe.bind(eventHandler, '', function () { })).to.throw();
(0, chai_1.expect)(eventHandler.emit.bind(eventHandler, '', {})).to.throw();
});
it('emits an event it has no listeners for', function () {
services.connectionMock
.expects('sendMessage')
.once()
.withExactArgs({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.EMIT,
name: name,
parsedData: 6
});
eventHandler.emit(name, 6);
});
it('subscribes to an event', function () {
var message = {
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.SUBSCRIBE,
names: [name],
correlationId: '0'
};
services.connectionMock
.expects('sendMessage')
.once()
.withExactArgs(message);
services.timeoutRegistryMock
.expects('add')
.once()
.withExactArgs({ message: message });
eventHandler.subscribe(name, spy);
});
it('resubscribes to an event when connection reestablished', function () {
var message = {
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.SUBSCRIBE,
names: [name],
correlationId: '0'
};
services.connectionMock
.expects('sendMessage')
.twice()
.withExactArgs(message);
services.timeoutRegistryMock
.expects('add')
.twice()
.withExactArgs({ message: message });
eventHandler.subscribe(name, spy);
services.simulateConnectionLost();
services.simulateConnectionReestablished();
});
it('subscribes to an event twice', function () {
services.connectionMock
.expects('sendMessage')
.once();
services.timeoutRegistryMock
.expects('add')
.once();
eventHandler.subscribe(name, spy);
eventHandler.subscribe(name, spy);
});
it('unsubscribes to an event after subscribing', function () {
var message = {
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.UNSUBSCRIBE,
names: [name],
correlationId: '1'
};
services.connectionMock
.expects('sendMessage')
.once();
services.connectionMock
.expects('sendMessage')
.once()
.withExactArgs(message);
services.timeoutRegistryMock
.expects('add')
.once();
services.timeoutRegistryMock
.expects('add')
.once()
.withExactArgs({ message: message });
eventHandler.subscribe(name, spy);
eventHandler.unsubscribe(name, spy);
});
it('unsubscribes to an event after unsubscribing already', function () {
var message = {
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.UNSUBSCRIBE,
names: [name],
correlationId: '1'
};
services.connectionMock
.expects('sendMessage')
.once();
services.connectionMock
.expects('sendMessage')
.once()
.withExactArgs(message);
services.timeoutRegistryMock
.expects('add')
.once();
services.timeoutRegistryMock
.expects('add')
.once()
.withExactArgs({ message: message });
services.loggerMock
.expects('warn')
.once()
.withExactArgs({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.NOT_SUBSCRIBED,
name: name
});
eventHandler.subscribe(name, spy);
eventHandler.unsubscribe(name, spy);
eventHandler.unsubscribe(name, spy);
});
it('notifies local listeners for local events', function () {
services.connectionMock
.expects('sendMessage')
.twice();
eventHandler.subscribe(name, spy);
eventHandler.emit(name, 8);
sinon.assert.calledOnce(spy);
sinon.assert.calledWithExactly(spy, 8);
});
it('notifies local listeners for remote events', function () {
eventHandler.subscribe(name, spy);
handle({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.EMIT,
name: name,
parsedData: 8
});
sinon.assert.calledOnce(spy);
sinon.assert.calledWithExactly(spy, 8);
});
it('removes local listeners', function () {
eventHandler.subscribe(name, spy);
eventHandler.unsubscribe(name, spy);
eventHandler.emit(name, 11);
sinon.assert.callCount(spy, 0);
});
it('notifies local listeners for remote events without data', function () {
eventHandler.subscribe(name, spy);
handle({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.EMIT,
name: name
});
sinon.assert.calledOnce(spy);
sinon.assert.calledWithExactly(spy, undefined);
});
it('unsubscribes locally when it recieves a message denied', function () {
eventHandler.subscribe(name, spy);
handle({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.MESSAGE_DENIED,
originalAction: constants_1.EVENT_ACTION.SUBSCRIBE,
name: name
});
eventHandler.emit(name, 11);
sinon.assert.callCount(spy, 0);
});
it('forwards subscribe ack messages', function () {
services.timeoutRegistryMock
.expects('remove')
.once()
.withExactArgs({
isAck: true,
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.SUBSCRIBE,
name: name
});
handle({
isAck: true,
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.SUBSCRIBE,
name: name
});
});
it('forwards unsubscribe ack messages', function () {
services.timeoutRegistryMock
.expects('remove')
.once()
.withExactArgs({
isAck: true,
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.UNSUBSCRIBE,
name: name
});
handle({
isAck: true,
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.UNSUBSCRIBE,
name: name
});
});
it('warns when a not subscribed is remotely recieved', function () {
services.loggerMock
.expects('warn')
.once()
.withExactArgs({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.NOT_SUBSCRIBED,
name: name
});
handle({
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.NOT_SUBSCRIBED,
name: name
});
});
it('listens for pattern', function () {
var pattern = '.*';
var callback = function () { };
listener.listenerMock
.expects('listen')
.once()
.withExactArgs(pattern, callback);
eventHandler.listen(pattern, callback);
});
it('unlistens a pattern', function () {
var pattern = '.*';
listener.listenerMock
.expects('unlisten')
.once()
.withExactArgs(pattern);
eventHandler.unlisten(pattern);
});
it('it forwards listeners\' messages to listeners', function () {
var subscriptionFoundMsg = {
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.SUBSCRIPTION_FOR_PATTERN_FOUND,
name: '.*',
subscription: 'subscription'
};
var subscriptionRemovedMsg = {
topic: constants_1.TOPIC.EVENT,
action: constants_1.EVENT_ACTION.SUBSCRIPTION_FOR_PATTERN_REMOVED,
name: '.*',
subscription: 'subscription'
};
listener.listenerMock
.expects('handle')
.once()
.withExactArgs(subscriptionFoundMsg);
listener.listenerMock
.expects('handle')
.once()
.withExactArgs(subscriptionRemovedMsg);
handle(subscriptionFoundMsg);
handle(subscriptionRemovedMsg);
});
it('logs an error event for unsolicited event messages', function () {
services.loggerMock
.expects('error')
.once()
.withExactArgs({
topic: constants_1.TOPIC.EVENT,
action: -1
}, constants_1.EVENT.UNSOLICITED_MESSAGE);
handle({
topic: constants_1.TOPIC.EVENT,
action: -1
});
});
describe('limbo', function () {
beforeEach(function () {
services.connection.isConnected = false;
services.connection.isInLimbo = true;
});
it('sends messages once re-established if in limbo', function () { return __awaiter(void 0, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
eventHandler.emit(name, 6);
services.connectionMock
.expects('sendMessage')
.once()
.withExactArgs({ topic: constants_1.TOPIC.EVENT, action: constants_1.EVENT_ACTION.EMIT, parsedData: 6, name: name });
services.simulateConnectionReestablished();
return [4 /*yield*/, (0, utils_1.PromiseDelay)(1)];
case 1:
_a.sent();
return [2 /*return*/];
}
});
}); });
});
});