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Contents
describe("Jax.Events.Methods", function() {
var emitter, evt, listenerID;
beforeEach(function() {
emitter = Jax.Class.create({ });
emitter.addMethods(Jax.Events.Methods);
emitter = new emitter();
listenerID = emitter.addEventListener('evt', function(obj) { evt = obj; });
});
// don't taint other tests
afterEach(function() { evt = undefined; });
it("should work with no event at all", function() {
emitter.fireEvent('evt');
expect(evt).toBeUndefined();
});
it("should set a default +type+ property on events", function() {
emitter.fireEvent('evt', { });
expect(evt.type).toEqual('evt');
});
it("should not override a +type+ property on events", function() {
emitter.fireEvent('evt', { type: 'one' });
expect(evt.type).toEqual('one');
});
it("should be un-listenenable", function() {
emitter.removeEventListener('evt', listenerID);
emitter.fireEvent('evt', {});
expect(evt).toBeUndefined(); // because the original listener never was fired
});
it("should be un-listenable out of order", function() {
// add a second listener. Its index is 1. If we remove index 0, we should still
// be able to remove index 1. At that point no listeners should exist.
var second = false, secondID;
secondID = emitter.addEventListener('evt', function() { second = true; });
emitter.removeEventListener('evt', listenerID);
emitter.removeEventListener('evt', secondID);
emitter.fireEvent('evt', {});
// neither should have fired
expect(second).toBeFalsy();
expect(evt).toBeUndefined();
});
});
Version data entries
13 entries across 13 versions & 1 rubygems