Add Cordova events emit method tests to spec
based on existing test code
with other minor Cordova events test updates
Co-authored-by: Christopher J. Brody <chris.brody@gmail.com>
Co-authored-by: daserge <v-seshak@microsoft.com>
diff --git a/spec/events.spec.js b/spec/events.spec.js
index 2fa8453..ef077e1 100644
--- a/spec/events.spec.js
+++ b/spec/events.spec.js
@@ -17,31 +17,67 @@
under the License.
*/
-var events = require('../src/events');
+const events = require('../src/events');
describe('Cordova events', function () {
+ describe('emit method', function () {
+ it('Test 001 : should emit events to a listener', function () {
+ const logSpy = jasmine.createSpy('logSpy');
+ events.on('log', logSpy);
+
+ events.emit('log', 'a test message');
+ expect(logSpy).toHaveBeenCalledWith('a test message');
+ });
+
+ it('Test 002 : should report if there were any listeners or not', function () {
+ const r1 = events.emit('myname', 'first');
+ expect(r1).toBe(false);
+
+ const listenerSpy = jasmine.createSpy('listenerSpy');
+ events.on('myname', listenerSpy);
+ const r2 = events.emit('myname', 'second');
+ expect(r2).toBe(true);
+ expect(listenerSpy).toHaveBeenCalled();
+ });
+ });
+
describe('forwardEventsTo method', function () {
afterEach(function () {
events.forwardEventsTo(null);
});
- it('Test 001 : should not go to infinite loop when trying to forward to self', function () {
+
+ it('Test 003 : should forward events to another event emitter', function () {
+ const EventEmitter = require('events').EventEmitter;
+ const anotherEventEmitter = new EventEmitter();
+ const logSpy = jasmine.createSpy('logSpy');
+ anotherEventEmitter.on('log', logSpy);
+
+ events.forwardEventsTo(anotherEventEmitter);
+ events.emit('log', 'forwarding test message');
+ expect(logSpy).toHaveBeenCalledWith('forwarding test message');
+ });
+
+ it('Test 004 : should not go to infinite loop when trying to forward to self', function () {
expect(function () {
events.forwardEventsTo(events);
events.emit('log', 'test message');
}).not.toThrow();
});
- it('Test 002 : should reset forwarding after trying to forward to self', function () {
- var EventEmitter = require('events').EventEmitter;
- var anotherEventEmitter = new EventEmitter();
- var logSpy = jasmine.createSpy('logSpy');
+
+ it('Test 005 : should reset forwarding after trying to forward to self', function () {
+ const EventEmitter = require('events').EventEmitter;
+ const anotherEventEmitter = new EventEmitter();
+ const logSpy = jasmine.createSpy('logSpy');
anotherEventEmitter.on('log', logSpy);
+ // should forward events to another event emitter at this point
events.forwardEventsTo(anotherEventEmitter);
events.emit('log', 'test message #1');
- expect(logSpy).toHaveBeenCalled();
+ expect(logSpy).toHaveBeenCalledWith('test message #1');
logSpy.calls.reset();
+ // should *not* forward events to another event emitter at this point
events.forwardEventsTo(events);
events.emit('log', 'test message #2');
expect(logSpy).not.toHaveBeenCalled();
