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import { Registry } from '../../src/lib/event/registry';
describe('Registry', () => {
it('Should be exported as function', () => {
assert(typeof Registry === 'function');
});
it('Should implement public interface', () => {
const registry = new Registry();
assert(typeof registry.set === 'function');
assert(typeof registry.get === 'function');
assert(typeof registry.delete === 'function');
});
describe('set', () => {
it('Should set entry if passed correct parameters', () => {
const registry = new Registry();
const element = document.createElement('div');
const event = 'test:event';
const listener = () => {};
registry.set(element, event, listener);
const result = registry.get(element);
assert(result[event].size === 1);
assert(result[event].has(listener));
});
});
describe('get', () => {
it('Should return entry if exists', () => {
const registry = new Registry();
const element = document.createElement('div');
const event = 'test:event';
const listener = () => {};
registry.set(element, event, listener);
const result = registry.get(element);
assert(result[event].size === 1);
assert(result[event].has(listener));
});
});
describe('delete', () => {
it('Should delete specified listener', () => {
const registry = new Registry();
const element = document.createElement('div');
const event = 'test:event';
const listener = () => {};
const listener2 = () => {};
const listener3 = () => {};
registry.set(element, event, listener);
registry.set(element, event, listener2);
registry.set(element, event, listener3);
registry.delete(element, event, listener);
const result = registry.get(element);
assert(result[event].size === 2);
assert(result[event].has(listener) === false);
assert(result[event].has(listener2) === true);
assert(result[event].has(listener3) === true);
});
it('Should delete all event listeners', () => {
const registry = new Registry();
const element = document.createElement('div');
const event = 'test:event';
const listener = () => {};
const listener2 = () => {};
const listener3 = () => {};
registry.set(element, event, listener);
registry.set(element, event, listener2);
registry.set(element, event, listener3);
registry.delete(element, event);
const result = registry.get(element);
assert(result[event].size === 0);
});
});
});