listeners.js

'put/remove/clear events': function() {
            var cleared = false,
                put = false,
                removed = false,
                afterPut = false,
                afterRemove = false,
                afterClear = false,
                map = new Y.Map({
                on: {
                    clear: function(event) {
                        cleared = true;
                    },

                    put: function(event) {
                        put = true;
                        Y.Assert.isTrue(event.hasOwnProperty('key'));
                        Y.Assert.isTrue(event.hasOwnProperty('value'));
                        Y.Assert.areSame(event.key, 'key1');
                        Y.Assert.areSame(event.value, 'value');
                    },

                    remove: function(event) {
                        removed = true;
                        Y.Assert.isTrue(event.hasOwnProperty('key'));
                        Y.Assert.isTrue(event.hasOwnProperty('value'));
                        Y.Assert.areSame(event.key, 'key1');
                        Y.Assert.areSame(event.value, 'value');
                    }
                },
                after: {
                    clear: function(event) {
                        afterClear = true;
                    },

                    put: function(event) {
                        afterPut = true;
                    },

                    remove: function(event) {
                        afterRemove = true;
                    }
                }
            });

            map.put('key1', 'value');
            map.clear();

            Y.Assert.isTrue(cleared);
            Y.Assert.isTrue(put);
            Y.Assert.isTrue(removed);
            Y.Assert.isTrue(afterClear);
            Y.Assert.isTrue(afterPut);
            Y.Assert.isTrue(afterRemove);
        }